gtest_unittest.cc - googletest - Google C++ Testing Framework

Source path: svn/ trunk/ test/ gtest_unittest.cc

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r614

// Copyright 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
//
// Tests for Google Test itself.  This verifies that the basic constructs of
// Google Test work.

#include "gtest/gtest.h"

// Verifies that the command line flag variables can be accessed
// in code once <gtest/gtest.h> has been #included.
// Do not move it after other #includes.
TEST(CommandLineFlagsTest, CanBeAccessedInCodeOnceGTestHIsIncluded) {
  bool dummy = testing::GTEST_FLAG(also_run_disabled_tests)
      || testing::GTEST_FLAG(break_on_failure)
      || testing::GTEST_FLAG(catch_exceptions)
      || testing::GTEST_FLAG(color) != "unknown"
      || testing::GTEST_FLAG(filter) != "unknown"
      || testing::GTEST_FLAG(list_tests)
      || testing::GTEST_FLAG(output) != "unknown"
      || testing::GTEST_FLAG(print_time)
      || testing::GTEST_FLAG(random_seed)
      || testing::GTEST_FLAG(repeat) > 0
      || testing::GTEST_FLAG(show_internal_stack_frames)
      || testing::GTEST_FLAG(shuffle)
      || testing::GTEST_FLAG(stack_trace_depth) > 0
      || testing::GTEST_FLAG(stream_result_to) != "unknown"
      || testing::GTEST_FLAG(throw_on_failure);
  EXPECT_TRUE(dummy || !dummy);  // Suppresses warning that dummy is unused.
}

#include <limits.h>  // For INT_MAX.
#include <stdlib.h>
#include <string.h>
#include <time.h>

#include <map>
#include <vector>
#include <ostream>

#include "gtest/gtest-spi.h"

// Indicates that this translation unit is part of Google Test's
// implementation.  It must come before gtest-internal-inl.h is
// included, or there will be a compiler error.  This trick is to
// prevent a user from accidentally including gtest-internal-inl.h in
// his code.
#define GTEST_IMPLEMENTATION_ 1
#include "src/gtest-internal-inl.h"
#undef GTEST_IMPLEMENTATION_

namespace testing {
namespace internal {

// Provides access to otherwise private parts of the TestEventListeners class
// that are needed to test it.
class TestEventListenersAccessor {
 public:
  static TestEventListener* GetRepeater(TestEventListeners* listeners) {
    return listeners->repeater();
  }

  static void SetDefaultResultPrinter(TestEventListeners* listeners,
                                      TestEventListener* listener) {
    listeners->SetDefaultResultPrinter(listener);
  }
  static void SetDefaultXmlGenerator(TestEventListeners* listeners,
                                     TestEventListener* listener) {
    listeners->SetDefaultXmlGenerator(listener);
  }

  static bool EventForwardingEnabled(const TestEventListeners& listeners) {
    return listeners.EventForwardingEnabled();
  }

  static void SuppressEventForwarding(TestEventListeners* listeners) {
    listeners->SuppressEventForwarding();
  }
};

}  // namespace internal
}  // namespace testing

using testing::AssertionFailure;
using testing::AssertionResult;
using testing::AssertionSuccess;
using testing::DoubleLE;
using testing::EmptyTestEventListener;
using testing::FloatLE;
using testing::GTEST_FLAG(also_run_disabled_tests);
using testing::GTEST_FLAG(break_on_failure);
using testing::GTEST_FLAG(catch_exceptions);
using testing::GTEST_FLAG(color);
using testing::GTEST_FLAG(death_test_use_fork);
using testing::GTEST_FLAG(filter);
using testing::GTEST_FLAG(list_tests);
using testing::GTEST_FLAG(output);
using testing::GTEST_FLAG(print_time);
using testing::GTEST_FLAG(random_seed);
using testing::GTEST_FLAG(repeat);
using testing::GTEST_FLAG(show_internal_stack_frames);
using testing::GTEST_FLAG(shuffle);
using testing::GTEST_FLAG(stack_trace_depth);
using testing::GTEST_FLAG(stream_result_to);
using testing::GTEST_FLAG(throw_on_failure);
using testing::IsNotSubstring;
using testing::IsSubstring;
using testing::Message;
using testing::ScopedFakeTestPartResultReporter;
using testing::StaticAssertTypeEq;
using testing::Test;
using testing::TestCase;
using testing::TestEventListeners;
using testing::TestPartResult;
using testing::TestPartResultArray;
using testing::TestProperty;
using testing::TestResult;
using testing::TimeInMillis;
using testing::UnitTest;
using testing::kMaxStackTraceDepth;
using testing::internal::AddReference;
using testing::internal::AlwaysFalse;
using testing::internal::AlwaysTrue;
using testing::internal::AppendUserMessage;
using testing::internal::ArrayAwareFind;
using testing::internal::ArrayEq;
using testing::internal::CodePointToUtf8;
using testing::internal::CompileAssertTypesEqual;
using testing::internal::CopyArray;
using testing::internal::CountIf;
using testing::internal::EqFailure;
using testing::internal::FloatingPoint;
using testing::internal::ForEach;
using testing::internal::FormatEpochTimeInMillisAsIso8601;
using testing::internal::FormatTimeInMillisAsSeconds;
using testing::internal::GTestFlagSaver;
using testing::internal::GetCurrentOsStackTraceExceptTop;
using testing::internal::GetElementOr;
using testing::internal::GetNextRandomSeed;
using testing::internal::GetRandomSeedFromFlag;
using testing::internal::GetTestTypeId;
using testing::internal::GetTimeInMillis;
using testing::internal::GetTypeId;
using testing::internal::GetUnitTestImpl;
using testing::internal::ImplicitlyConvertible;
using testing::internal::Int32;
using testing::internal::Int32FromEnvOrDie;
using testing::internal::IsAProtocolMessage;
using testing::internal::IsContainer;
using testing::internal::IsContainerTest;
using testing::internal::IsNotContainer;
using testing::internal::NativeArray;
using testing::internal::ParseInt32Flag;
using testing::internal::RemoveConst;
using testing::internal::RemoveReference;
using testing::internal::ShouldRunTestOnShard;
using testing::internal::ShouldShard;
using testing::internal::ShouldUseColor;
using testing::internal::Shuffle;
using testing::internal::ShuffleRange;
using testing::internal::SkipPrefix;
using testing::internal::StreamableToString;
using testing::internal::String;
using testing::internal::TestEventListenersAccessor;
using testing::internal::TestResultAccessor;
using testing::internal::UInt32;
using testing::internal::WideStringToUtf8;
using testing::internal::kCopy;
using testing::internal::kMaxRandomSeed;
using testing::internal::kReference;
using testing::internal::kTestTypeIdInGoogleTest;
using testing::internal::scoped_ptr;

#if GTEST_HAS_STREAM_REDIRECTION
using testing::internal::CaptureStdout;
using testing::internal::GetCapturedStdout;
#endif

#if GTEST_IS_THREADSAFE
using testing::internal::ThreadWithParam;
#endif

class TestingVector : public std::vector<int> {
};

::std::ostream& operator<<(::std::ostream& os,
                           const TestingVector& vector) {
  os << "{ ";
  for (size_t i = 0; i < vector.size(); i++) {
    os << vector[i] << " ";
  }
  os << "}";
  return os;
}

// This line tests that we can define tests in an unnamed namespace.
namespace {

TEST(GetRandomSeedFromFlagTest, HandlesZero) {
  const int seed = GetRandomSeedFromFlag(0);
  EXPECT_LE(1, seed);
  EXPECT_LE(seed, static_cast<int>(kMaxRandomSeed));
}

TEST(GetRandomSeedFromFlagTest, PreservesValidSeed) {
  EXPECT_EQ(1, GetRandomSeedFromFlag(1));
  EXPECT_EQ(2, GetRandomSeedFromFlag(2));
  EXPECT_EQ(kMaxRandomSeed - 1, GetRandomSeedFromFlag(kMaxRandomSeed - 1));
  EXPECT_EQ(static_cast<int>(kMaxRandomSeed),
            GetRandomSeedFromFlag(kMaxRandomSeed));
}

TEST(GetRandomSeedFromFlagTest, NormalizesInvalidSeed) {
  const int seed1 = GetRandomSeedFromFlag(-1);
  EXPECT_LE(1, seed1);
  EXPECT_LE(seed1, static_cast<int>(kMaxRandomSeed));

  const int seed2 = GetRandomSeedFromFlag(kMaxRandomSeed + 1);
  EXPECT_LE(1, seed2);
  EXPECT_LE(seed2, static_cast<int>(kMaxRandomSeed));
}

TEST(GetNextRandomSeedTest, WorksForValidInput) {
  EXPECT_EQ(2, GetNextRandomSeed(1));
  EXPECT_EQ(3, GetNextRandomSeed(2));
  EXPECT_EQ(static_cast<int>(kMaxRandomSeed),
            GetNextRandomSeed(kMaxRandomSeed - 1));
  EXPECT_EQ(1, GetNextRandomSeed(kMaxRandomSeed));

  // We deliberately don't test GetNextRandomSeed() with invalid
  // inputs, as that requires death tests, which are expensive.  This
  // is fine as GetNextRandomSeed() is internal and has a
  // straightforward definition.
}

static void ClearCurrentTestPartResults() {
  TestResultAccessor::ClearTestPartResults(
      GetUnitTestImpl()->current_test_result());
}

// Tests GetTypeId.

TEST(GetTypeIdTest, ReturnsSameValueForSameType) {
  EXPECT_EQ(GetTypeId<int>(), GetTypeId<int>());
  EXPECT_EQ(GetTypeId<Test>(), GetTypeId<Test>());
}

class SubClassOfTest : public Test {};
class AnotherSubClassOfTest : public Test {};

TEST(GetTypeIdTest, ReturnsDifferentValuesForDifferentTypes) {
  EXPECT_NE(GetTypeId<int>(), GetTypeId<const int>());
  EXPECT_NE(GetTypeId<int>(), GetTypeId<char>());
  EXPECT_NE(GetTypeId<int>(), GetTestTypeId());
  EXPECT_NE(GetTypeId<SubClassOfTest>(), GetTestTypeId());
  EXPECT_NE(GetTypeId<AnotherSubClassOfTest>(), GetTestTypeId());
  EXPECT_NE(GetTypeId<AnotherSubClassOfTest>(), GetTypeId<SubClassOfTest>());
}

// Verifies that GetTestTypeId() returns the same value, no matter it
// is called from inside Google Test or outside of it.
TEST(GetTestTypeIdTest, ReturnsTheSameValueInsideOrOutsideOfGoogleTest) {
  EXPECT_EQ(kTestTypeIdInGoogleTest, GetTestTypeId());
}

// Tests FormatTimeInMillisAsSeconds().

TEST(FormatTimeInMillisAsSecondsTest, FormatsZero) {
  EXPECT_EQ("0", FormatTimeInMillisAsSeconds(0));
}

TEST(FormatTimeInMillisAsSecondsTest, FormatsPositiveNumber) {
  EXPECT_EQ("0.003", FormatTimeInMillisAsSeconds(3));
  EXPECT_EQ("0.01", FormatTimeInMillisAsSeconds(10));
  EXPECT_EQ("0.2", FormatTimeInMillisAsSeconds(200));
  EXPECT_EQ("1.2", FormatTimeInMillisAsSeconds(1200));
  EXPECT_EQ("3", FormatTimeInMillisAsSeconds(3000));
}

TEST(FormatTimeInMillisAsSecondsTest, FormatsNegativeNumber) {
  EXPECT_EQ("-0.003", FormatTimeInMillisAsSeconds(-3));
  EXPECT_EQ("-0.01", FormatTimeInMillisAsSeconds(-10));
  EXPECT_EQ("-0.2", FormatTimeInMillisAsSeconds(-200));
  EXPECT_EQ("-1.2", FormatTimeInMillisAsSeconds(-1200));
  EXPECT_EQ("-3", FormatTimeInMillisAsSeconds(-3000));
}

// Tests FormatEpochTimeInMillisAsIso8601().  The correctness of conversion
// for particular dates below was verified in Python using
// datetime.datetime.fromutctimestamp(<timetamp>/1000).

// FormatEpochTimeInMillisAsIso8601 depends on the current timezone, so we
// have to set up a particular timezone to obtain predictable results.
class FormatEpochTimeInMillisAsIso8601Test : public Test {
 public:
  // On Cygwin, GCC doesn't allow unqualified integer literals to exceed
  // 32 bits, even when 64-bit integer types are available.  We have to
  // force the constants to have a 64-bit type here.
  static const TimeInMillis kMillisPerSec = 1000;

 private:
  virtual void SetUp() {
    saved_tz_ = NULL;
#if _MSC_VER
# pragma warning(push)          // Saves the current warning state.
# pragma warning(disable:4996)  // Temporarily disables warning 4996
                                // (function or variable may be unsafe
                                // for getenv, function is deprecated for
                                // strdup).
    if (getenv("TZ"))
      saved_tz_ = strdup(getenv("TZ"));
# pragma warning(pop)           // Restores the warning state again.
#else
    if (getenv("TZ"))
      saved_tz_ = strdup(getenv("TZ"));
#endif

    // Set up the time zone for FormatEpochTimeInMillisAsIso8601 to use.  We
    // cannot use the local time zone because the function's output depends
    // on the time zone.
    SetTimeZone("UTC+00");
  }

  virtual void TearDown() {
    SetTimeZone(saved_tz_);
    free(const_cast<char*>(saved_tz_));
    saved_tz_ = NULL;
  }

  static void SetTimeZone(const char* time_zone) {
    // tzset() distinguishes between the TZ variable being present and empty
    // and not being present, so we have to consider the case of time_zone
    // being NULL.
#if _MSC_VER
    // ...Unless it's MSVC, whose standard library's _putenv doesn't
    // distinguish between an empty and a missing variable.
    const std::string env_var =
        std::string("TZ=") + (time_zone ? time_zone : "");
    _putenv(env_var.c_str());
# pragma warning(push)          // Saves the current warning state.
# pragma warning(disable:4996)  // Temporarily disables warning 4996
                                // (function is deprecated).
    tzset();
# pragma warning(pop)           // Restores the warning state again.
#else
    if (time_zone) {
      setenv(("TZ"), time_zone, 1);
    } else {
      unsetenv("TZ");
    }
    tzset();
#endif
  }

  const char* saved_tz_;
};

const TimeInMillis FormatEpochTimeInMillisAsIso8601Test::kMillisPerSec;

TEST_F(FormatEpochTimeInMillisAsIso8601Test, PrintsTwoDigitSegments) {
  EXPECT_EQ("2011-10-31T18:52:42",
            FormatEpochTimeInMillisAsIso8601(1320087162 * kMillisPerSec));
}

TEST_F(FormatEpochTimeInMillisAsIso8601Test, MillisecondsDoNotAffectResult) {
  EXPECT_EQ(
      "2011-10-31T18:52:42",
      FormatEpochTimeInMillisAsIso8601(1320087162 * kMillisPerSec + 234));
}

TEST_F(FormatEpochTimeInMillisAsIso8601Test, PrintsLeadingZeroes) {
  EXPECT_EQ("2011-09-03T05:07:02",
            FormatEpochTimeInMillisAsIso8601(1315026422 * kMillisPerSec));
}

TEST_F(FormatEpochTimeInMillisAsIso8601Test, Prints24HourTime) {
  EXPECT_EQ("2011-09-28T17:08:22",
            FormatEpochTimeInMillisAsIso8601(1317229702 * kMillisPerSec));
}

TEST_F(FormatEpochTimeInMillisAsIso8601Test, PrintsEpochStart) {
  EXPECT_EQ("1970-01-01T00:00:00", FormatEpochTimeInMillisAsIso8601(0));
}

#if GTEST_CAN_COMPARE_NULL

# ifdef __BORLANDC__
// Silences warnings: "Condition is always true", "Unreachable code"
#  pragma option push -w-ccc -w-rch
# endif

// Tests that GTEST_IS_NULL_LITERAL_(x) is true when x is a null
// pointer literal.
TEST(NullLiteralTest, IsTrueForNullLiterals) {
  EXPECT_TRUE(GTEST_IS_NULL_LITERAL_(NULL));
  EXPECT_TRUE(GTEST_IS_NULL_LITERAL_(0));
  EXPECT_TRUE(GTEST_IS_NULL_LITERAL_(0U));
  EXPECT_TRUE(GTEST_IS_NULL_LITERAL_(0L));

# ifndef __BORLANDC__

  // Some compilers may fail to detect some null pointer literals;
  // as long as users of the framework don't use such literals, this
  // is harmless.
  EXPECT_TRUE(GTEST_IS_NULL_LITERAL_(1 - 1));

# endif
}

// Tests that GTEST_IS_NULL_LITERAL_(x) is false when x is not a null
// pointer literal.
TEST(NullLiteralTest, IsFalseForNonNullLiterals) {
  EXPECT_FALSE(GTEST_IS_NULL_LITERAL_(1));
  EXPECT_FALSE(GTEST_IS_NULL_LITERAL_(0.0));
  EXPECT_FALSE(GTEST_IS_NULL_LITERAL_('a'));
  EXPECT_FALSE(GTEST_IS_NULL_LITERAL_(static_cast<void*>(NULL)));
}

# ifdef __BORLANDC__
// Restores warnings after previous "#pragma option push" suppressed them.
#  pragma option pop
# endif

#endif  // GTEST_CAN_COMPARE_NULL
//
// Tests CodePointToUtf8().

// Tests that the NUL character L'\0' is encoded correctly.
TEST(CodePointToUtf8Test, CanEncodeNul) {
  char buffer[32];
  EXPECT_STREQ("", CodePointToUtf8(L'\0', buffer));
}

// Tests that ASCII characters are encoded correctly.
TEST(CodePointToUtf8Test, CanEncodeAscii) {
  char buffer[32];
  EXPECT_STREQ("a", CodePointToUtf8(L'a', buffer));
  EXPECT_STREQ("Z", CodePointToUtf8(L'Z', buffer));
  EXPECT_STREQ("&", CodePointToUtf8(L'&', buffer));
  EXPECT_STREQ("\x7F", CodePointToUtf8(L'\x7F', buffer));
}

// Tests that Unicode code-points that have 8 to 11 bits are encoded
// as 110xxxxx 10xxxxxx.
TEST(CodePointToUtf8Test, CanEncode8To11Bits) {
  char buffer[32];
  // 000 1101 0011 => 110-00011 10-010011
  EXPECT_STREQ("\xC3\x93", CodePointToUtf8(L'\xD3', buffer));

  // 101 0111 0110 => 110-10101 10-110110
  // Some compilers (e.g., GCC on MinGW) cannot handle non-ASCII codepoints
  // in wide strings and wide chars. In order to accomodate them, we have to
  // introduce such character constants as integers.
  EXPECT_STREQ("\xD5\xB6",
               CodePointToUtf8(static_cast<wchar_t>(0x576), buffer));
}

// Tests that Unicode code-points that have 12 to 16 bits are encoded
// as 1110xxxx 10xxxxxx 10xxxxxx.
TEST(CodePointToUtf8Test, CanEncode12To16Bits) {
  char buffer[32];
  // 0000 1000 1101 0011 => 1110-0000 10-100011 10-010011
  EXPECT_STREQ("\xE0\xA3\x93",
               CodePointToUtf8(static_cast<wchar_t>(0x8D3), buffer));

  // 1100 0111 0100 1101 => 1110-1100 10-011101 10-001101
  EXPECT_STREQ("\xEC\x9D\x8D",
               CodePointToUtf8(static_cast<wchar_t>(0xC74D), buffer));
}

#if !GTEST_WIDE_STRING_USES_UTF16_
// Tests in this group require a wchar_t to hold > 16 bits, and thus
// are skipped on Windows, Cygwin, and Symbian, where a wchar_t is
// 16-bit wide. This code may not compile on those systems.

// Tests that Unicode code-points that have 17 to 21 bits are encoded
// as 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx.
TEST(CodePointToUtf8Test, CanEncode17To21Bits) {
  char buffer[32];
  // 0 0001 0000 1000 1101 0011 => 11110-000 10-010000 10-100011 10-010011
  EXPECT_STREQ("\xF0\x90\xA3\x93", CodePointToUtf8(L'\x108D3', buffer));

  // 0 0001 0000 0100 0000 0000 => 11110-000 10-010000 10-010000 10-000000
  EXPECT_STREQ("\xF0\x90\x90\x80", CodePointToUtf8(L'\x10400', buffer));

  // 1 0000 1000 0110 0011 0100 => 11110-100 10-001000 10-011000 10-110100
  EXPECT_STREQ("\xF4\x88\x98\xB4", CodePointToUtf8(L'\x108634', buffer));
}

// Tests that encoding an invalid code-point generates the expected result.
TEST(CodePointToUtf8Test, CanEncodeInvalidCodePoint) {
  char buffer[32];
  EXPECT_STREQ("(Invalid Unicode 0x1234ABCD)",
               CodePointToUtf8(L'\x1234ABCD', buffer));
}

#endif  // !GTEST_WIDE_STRING_USES_UTF16_

// Tests WideStringToUtf8().

// Tests that the NUL character L'\0' is encoded correctly.
TEST(WideStringToUtf8Test, CanEncodeNul) {
  EXPECT_STREQ("", WideStringToUtf8(L"", 0).c_str());
  EXPECT_STREQ("", WideStringToUtf8(L"", -1).c_str());
}

// Tests that ASCII strings are encoded correctly.
TEST(WideStringToUtf8Test, CanEncodeAscii) {
  EXPECT_STREQ("a", WideStringToUtf8(L"a", 1).c_str());
  EXPECT_STREQ("ab", WideStringToUtf8(L"ab", 2).c_str());
  EXPECT_STREQ("a", WideStringToUtf8(L"a", -1).c_str());
  EXPECT_STREQ("ab", WideStringToUtf8(L"ab", -1).c_str());
}

// Tests that Unicode code-points that have 8 to 11 bits are encoded
// as 110xxxxx 10xxxxxx.
TEST(WideStringToUtf8Test, CanEncode8To11Bits) {
  // 000 1101 0011 => 110-00011 10-010011
  EXPECT_STREQ("\xC3\x93", WideStringToUtf8(L"\xD3", 1).c_str());
  EXPECT_STREQ("\xC3\x93", WideStringToUtf8(L"\xD3", -1).c_str());

  // 101 0111 0110 => 110-10101 10-110110
  const wchar_t s[] = { 0x576, '\0' };
  EXPECT_STREQ("\xD5\xB6", WideStringToUtf8(s, 1).c_str());
  EXPECT_STREQ("\xD5\xB6", WideStringToUtf8(s, -1).c_str());
}

// Tests that Unicode code-points that have 12 to 16 bits are encoded
// as 1110xxxx 10xxxxxx 10xxxxxx.
TEST(WideStringToUtf8Test, CanEncode12To16Bits) {
  // 0000 1000 1101 0011 => 1110-0000 10-100011 10-010011
  const wchar_t s1[] = { 0x8D3, '\0' };
  EXPECT_STREQ("\xE0\xA3\x93", WideStringToUtf8(s1, 1).c_str());
  EXPECT_STREQ("\xE0\xA3\x93", WideStringToUtf8(s1, -1).c_str());

  // 1100 0111 0100 1101 => 1110-1100 10-011101 10-001101
  const wchar_t s2[] = { 0xC74D, '\0' };
  EXPECT_STREQ("\xEC\x9D\x8D", WideStringToUtf8(s2, 1).c_str());
  EXPECT_STREQ("\xEC\x9D\x8D", WideStringToUtf8(s2, -1).c_str());
}

// Tests that the conversion stops when the function encounters \0 character.
TEST(WideStringToUtf8Test, StopsOnNulCharacter) {
  EXPECT_STREQ("ABC", WideStringToUtf8(L"ABC\0XYZ", 100).c_str());
}

// Tests that the conversion stops when the function reaches the limit
// specified by the 'length' parameter.
TEST(WideStringToUtf8Test, StopsWhenLengthLimitReached) {
  EXPECT_STREQ("ABC", WideStringToUtf8(L"ABCDEF", 3).c_str());
}

#if !GTEST_WIDE_STRING_USES_UTF16_
// Tests that Unicode code-points that have 17 to 21 bits are encoded
// as 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx. This code may not compile
// on the systems using UTF-16 encoding.
TEST(WideStringToUtf8Test, CanEncode17To21Bits) {
  // 0 0001 0000 1000 1101 0011 => 11110-000 10-010000 10-100011 10-010011
  EXPECT_STREQ("\xF0\x90\xA3\x93", WideStringToUtf8(L"\x108D3", 1).c_str());
  EXPECT_STREQ("\xF0\x90\xA3\x93", WideStringToUtf8(L"\x108D3", -1).c_str());

  // 1 0000 1000 0110 0011 0100 => 11110-100 10-001000 10-011000 10-110100
  EXPECT_STREQ("\xF4\x88\x98\xB4", WideStringToUtf8(L"\x108634", 1).c_str());
  EXPECT_STREQ("\xF4\x88\x98\xB4", WideStringToUtf8(L"\x108634", -1).c_str());
}

// Tests that encoding an invalid code-point generates the expected result.
TEST(WideStringToUtf8Test, CanEncodeInvalidCodePoint) {
  EXPECT_STREQ("(Invalid Unicode 0xABCDFF)",
               WideStringToUtf8(L"\xABCDFF", -1).c_str());
}
#else  // !GTEST_WIDE_STRING_USES_UTF16_
// Tests that surrogate pairs are encoded correctly on the systems using
// UTF-16 encoding in the wide strings.
TEST(WideStringToUtf8Test, CanEncodeValidUtf16SUrrogatePairs) {
  const wchar_t s[] = { 0xD801, 0xDC00, '\0' };
  EXPECT_STREQ("\xF0\x90\x90\x80", WideStringToUtf8(s, -1).c_str());
}

// Tests that encoding an invalid UTF-16 surrogate pair
// generates the expected result.
TEST(WideStringToUtf8Test, CanEncodeInvalidUtf16SurrogatePair) {
  // Leading surrogate is at the end of the string.
  const wchar_t s1[] = { 0xD800, '\0' };
  EXPECT_STREQ("\xED\xA0\x80", WideStringToUtf8(s1, -1).c_str());
  // Leading surrogate is not followed by the trailing surrogate.
  const wchar_t s2[] = { 0xD800, 'M', '\0' };
  EXPECT_STREQ("\xED\xA0\x80M", WideStringToUtf8(s2, -1).c_str());
  // Trailing surrogate appearas without a leading surrogate.
  const wchar_t s3[] = { 0xDC00, 'P', 'Q', 'R', '\0' };
  EXPECT_STREQ("\xED\xB0\x80PQR", WideStringToUtf8(s3, -1).c_str());
}
#endif  // !GTEST_WIDE_STRING_USES_UTF16_

// Tests that codepoint concatenation works correctly.
#if !GTEST_WIDE_STRING_USES_UTF16_
TEST(WideStringToUtf8Test, ConcatenatesCodepointsCorrectly) {
  const wchar_t s[] = { 0x108634, 0xC74D, '\n', 0x576, 0x8D3, 0x108634, '\0'};
  EXPECT_STREQ(
      "\xF4\x88\x98\xB4"
          "\xEC\x9D\x8D"
          "\n"
          "\xD5\xB6"
          "\xE0\xA3\x93"
          "\xF4\x88\x98\xB4",
      WideStringToUtf8(s, -1).c_str());
}
#else
TEST(WideStringToUtf8Test, ConcatenatesCodepointsCorrectly) {
  const wchar_t s[] = { 0xC74D, '\n', 0x576, 0x8D3, '\0'};
  EXPECT_STREQ(
      "\xEC\x9D\x8D" "\n" "\xD5\xB6" "\xE0\xA3\x93",
      WideStringToUtf8(s, -1).c_str());
}
#endif  // !GTEST_WIDE_STRING_USES_UTF16_

// Tests the Random class.

TEST(RandomDeathTest, GeneratesCrashesOnInvalidRange) {
  testing::internal::Random random(42);
  EXPECT_DEATH_IF_SUPPORTED(
      random.Generate(0),
      "Cannot generate a number in the range \\[0, 0\\)");
  EXPECT_DEATH_IF_SUPPORTED(
      random.Generate(testing::internal::Random::kMaxRange + 1),
      "Generation of a number in \\[0, 2147483649\\) was requested, "
      "but this can only generate numbers in \\[0, 2147483648\\)");
}

TEST(RandomTest, GeneratesNumbersWithinRange) {
  const UInt32 kRange = 10000;
  testing::internal::Random random(12345);
  for (int i = 0; i < 10; i++) {
    EXPECT_LT(random.Generate(kRange), kRange) << " for iteration " << i;
  }

  testing::internal::Random random2(testing::internal::Random::kMaxRange);
  for (int i = 0; i < 10; i++) {
    EXPECT_LT(random2.Generate(kRange), kRange) << " for iteration " << i;
  }
}

TEST(RandomTest, RepeatsWhenReseeded) {
  const int kSeed = 123;
  const int kArraySize = 10;
  const UInt32 kRange = 10000;
  UInt32 values[kArraySize];

  testing::internal::Random random(kSeed);
  for (int i = 0; i < kArraySize; i++) {
    values[i] = random.Generate(kRange);
  }

  random.Reseed(kSeed);
  for (int i = 0; i < kArraySize; i++) {
    EXPECT_EQ(values[i], random.Generate(kRange)) << " for iteration " << i;
  }
}

// Tests STL container utilities.

// Tests CountIf().

static bool IsPositive(int n) { return n > 0; }

TEST(ContainerUtilityTest, CountIf) {
  std::vector<int> v;
  EXPECT_EQ(0, CountIf(v, IsPositive));  // Works for an empty container.

  v.push_back(-1);
  v.push_back(0);
  EXPECT_EQ(0, CountIf(v, IsPositive));  // Works when no value satisfies.

  v.push_back(2);
  v.push_back(-10);
  v.push_back(10);
  EXPECT_EQ(2, CountIf(v, IsPositive));
}

// Tests ForEach().

static int g_sum = 0;
static void Accumulate(int n) { g_sum += n; }

TEST(ContainerUtilityTest, ForEach) {
  std::vector<int> v;
  g_sum = 0;
  ForEach(v, Accumulate);
  EXPECT_EQ(0, g_sum);  // Works for an empty container;

  g_sum = 0;
  v.push_back(1);
  ForEach(v, Accumulate);
  EXPECT_EQ(1, g_sum);  // Works for a container with one element.

  g_sum = 0;
  v.push_back(20);
  v.push_back(300);
  ForEach(v, Accumulate);
  EXPECT_EQ(321, g_sum);
}

// Tests GetElementOr().
TEST(ContainerUtilityTest, GetElementOr) {
  std::vector<char> a;
  EXPECT_EQ('x', GetElementOr(a, 0, 'x'));

  a.push_back('a');
  a.push_back('b');
  EXPECT_EQ('a', GetElementOr(a, 0, 'x'));
  EXPECT_EQ('b', GetElementOr(a, 1, 'x'));
  EXPECT_EQ('x', GetElementOr(a, -2, 'x'));
  EXPECT_EQ('x', GetElementOr(a, 2, 'x'));
}

TEST(ContainerUtilityDeathTest, ShuffleRange) {
  std::vector<int> a;
  a.push_back(0);
  a.push_back(1);
  a.push_back(2);
  testing::internal::Random random(1);

  EXPECT_DEATH_IF_SUPPORTED(
      ShuffleRange(&random, -1, 1, &a),
      "Invalid shuffle range start -1: must be in range \\[0, 3\\]");
  EXPECT_DEATH_IF_SUPPORTED(
      ShuffleRange(&random, 4, 4, &a),
      "Invalid shuffle range start 4: must be in range \\[0, 3\\]");
  EXPECT_DEATH_IF_SUPPORTED(
      ShuffleRange(&random, 3, 2, &a),
      "Invalid shuffle range finish 2: must be in range \\[3, 3\\]");
  EXPECT_DEATH_IF_SUPPORTED(
      ShuffleRange(&random, 3, 4, &a),
      "Invalid shuffle range finish 4: must be in range \\[3, 3\\]");
}

class VectorShuffleTest : public Test {
 protected:
  static const int kVectorSize = 20;

  VectorShuffleTest() : random_(1) {
    for (int i = 0; i < kVectorSize; i++) {
      vector_.push_back(i);
    }
  }

  static bool VectorIsCorrupt(const TestingVector& vector) {
    if (kVectorSize != static_cast<int>(vector.size())) {
      return true;
    }

    bool found_in_vector[kVectorSize] = { false };
    for (size_t i = 0; i < vector.size(); i++) {
      const int e = vector[i];
      if (e < 0 || e >= kVectorSize || found_in_vector[e]) {
        return true;
      }
      found_in_vector[e] = true;
    }

    // Vector size is correct, elements' range is correct, no
    // duplicate elements.  Therefore no corruption has occurred.
    return false;
  }

  static bool VectorIsNotCorrupt(const TestingVector& vector) {
    return !VectorIsCorrupt(vector);
  }

  static bool RangeIsShuffled(const TestingVector& vector, int begin, int end) {
    for (int i = begin; i < end; i++) {
      if (i != vector[i]) {
        return true;
      }
    }
    return false;
  }

  static bool RangeIsUnshuffled(
      const TestingVector& vector, int begin, int end) {
    return !RangeIsShuffled(vector, begin, end);
  }

  static bool VectorIsShuffled(const TestingVector& vector) {
    return RangeIsShuffled(vector, 0, static_cast<int>(vector.size()));
  }

  static bool VectorIsUnshuffled(const TestingVector& vector) {
    return !VectorIsShuffled(vector);
  }

  testing::internal::Random random_;
  TestingVector vector_;
};  // class VectorShuffleTest

const int VectorShuffleTest::kVectorSize;

TEST_F(VectorShuffleTest, HandlesEmptyRange) {
  // Tests an empty range at the beginning...
  ShuffleRange(&random_, 0, 0, &vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  ASSERT_PRED1(VectorIsUnshuffled, vector_);

  // ...in the middle...
  ShuffleRange(&random_, kVectorSize/2, kVectorSize/2, &vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  ASSERT_PRED1(VectorIsUnshuffled, vector_);

  // ...at the end...
  ShuffleRange(&random_, kVectorSize - 1, kVectorSize - 1, &vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  ASSERT_PRED1(VectorIsUnshuffled, vector_);

  // ...and past the end.
  ShuffleRange(&random_, kVectorSize, kVectorSize, &vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  ASSERT_PRED1(VectorIsUnshuffled, vector_);
}

TEST_F(VectorShuffleTest, HandlesRangeOfSizeOne) {
  // Tests a size one range at the beginning...
  ShuffleRange(&random_, 0, 1, &vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  ASSERT_PRED1(VectorIsUnshuffled, vector_);

  // ...in the middle...
  ShuffleRange(&random_, kVectorSize/2, kVectorSize/2 + 1, &vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  ASSERT_PRED1(VectorIsUnshuffled, vector_);

  // ...and at the end.
  ShuffleRange(&random_, kVectorSize - 1, kVectorSize, &vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  ASSERT_PRED1(VectorIsUnshuffled, vector_);
}

// Because we use our own random number generator and a fixed seed,
// we can guarantee that the following "random" tests will succeed.

TEST_F(VectorShuffleTest, ShufflesEntireVector) {
  Shuffle(&random_, &vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  EXPECT_FALSE(VectorIsUnshuffled(vector_)) << vector_;

  // Tests the first and last elements in particular to ensure that
  // there are no off-by-one problems in our shuffle algorithm.
  EXPECT_NE(0, vector_[0]);
  EXPECT_NE(kVectorSize - 1, vector_[kVectorSize - 1]);
}

TEST_F(VectorShuffleTest, ShufflesStartOfVector) {
  const int kRangeSize = kVectorSize/2;

  ShuffleRange(&random_, 0, kRangeSize, &vector_);

  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  EXPECT_PRED3(RangeIsShuffled, vector_, 0, kRangeSize);
  EXPECT_PRED3(RangeIsUnshuffled, vector_, kRangeSize, kVectorSize);
}

TEST_F(VectorShuffleTest, ShufflesEndOfVector) {
  const int kRangeSize = kVectorSize / 2;
  ShuffleRange(&random_, kRangeSize, kVectorSize, &vector_);

  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  EXPECT_PRED3(RangeIsUnshuffled, vector_, 0, kRangeSize);
  EXPECT_PRED3(RangeIsShuffled, vector_, kRangeSize, kVectorSize);
}

TEST_F(VectorShuffleTest, ShufflesMiddleOfVector) {
  int kRangeSize = kVectorSize/3;
  ShuffleRange(&random_, kRangeSize, 2*kRangeSize, &vector_);

  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  EXPECT_PRED3(RangeIsUnshuffled, vector_, 0, kRangeSize);
  EXPECT_PRED3(RangeIsShuffled, vector_, kRangeSize, 2*kRangeSize);
  EXPECT_PRED3(RangeIsUnshuffled, vector_, 2*kRangeSize, kVectorSize);
}

TEST_F(VectorShuffleTest, ShufflesRepeatably) {
  TestingVector vector2;
  for (int i = 0; i < kVectorSize; i++) {
    vector2.push_back(i);
  }

  random_.Reseed(1234);
  Shuffle(&random_, &vector_);
  random_.Reseed(1234);
  Shuffle(&random_, &vector2);

  ASSERT_PRED1(VectorIsNotCorrupt, vector_);
  ASSERT_PRED1(VectorIsNotCorrupt, vector2);

  for (int i = 0; i < kVectorSize; i++) {
    EXPECT_EQ(vector_[i], vector2[i]) << " where i is " << i;
  }
}

// Tests the size of the AssertHelper class.

TEST(AssertHelperTest, AssertHelperIsSmall) {
  // To avoid breaking clients that use lots of assertions in one
  // function, we cannot grow the size of AssertHelper.
  EXPECT_LE(sizeof(testing::internal::AssertHelper), sizeof(void*));
}

// Tests the String class.

// Tests String's constructors.
TEST(StringTest, Constructors) {
  // Default ctor.
  String s1;
  // We aren't using EXPECT_EQ(NULL, s1.c_str()) because comparing
  // pointers with NULL isn't supported on all platforms.
  EXPECT_EQ(0U, s1.length());
  EXPECT_TRUE(NULL == s1.c_str());

  // Implicitly constructs from a C-string.
  String s2 = "Hi";
  EXPECT_EQ(2U, s2.length());
  EXPECT_STREQ("Hi", s2.c_str());

  // Constructs from a C-string and a length.
  String s3("hello", 3);
  EXPECT_EQ(3U, s3.length());
  EXPECT_STREQ("hel", s3.c_str());

  // The empty String should be created when String is constructed with
  // a NULL pointer and length 0.
  EXPECT_EQ(0U, String(NULL, 0).length());
  EXPECT_FALSE(String(NULL, 0).c_str() == NULL);

  // Constructs a String that contains '\0'.
  String s4("a\0bcd", 4);
  EXPECT_EQ(4U, s4.length());
  EXPECT_EQ('a', s4.c_str()[0]);
  EXPECT_EQ('\0', s4.c_str()[1]);
  EXPECT_EQ('b', s4.c_str()[2]);
  EXPECT_EQ('c', s4.c_str()[3]);

  // Copy ctor where the source is NULL.
  const String null_str;
  String s5 = null_str;
  EXPECT_TRUE(s5.c_str() == NULL);

  // Copy ctor where the source isn't NULL.
  String s6 = s3;
  EXPECT_EQ(3U, s6.length());
  EXPECT_STREQ("hel", s6.c_str());

  // Copy ctor where the source contains '\0'.
  String s7 = s4;
  EXPECT_EQ(4U, s7.length());
  EXPECT_EQ('a', s7.c_str()[0]);
  EXPECT_EQ('\0', s7.c_str()[1]);
  EXPECT_EQ('b', s7.c_str()[2]);
  EXPECT_EQ('c', s7.c_str()[3]);
}

TEST(StringTest, ConvertsFromStdString) {
  // An empty std::string.
  const std::string src1("");
  const String dest1 = src1;
  EXPECT_EQ(0U, dest1.length());
  EXPECT_STREQ("", dest1.c_str());

  // A normal std::string.
  const std::string src2("Hi");
  const String dest2 = src2;
  EXPECT_EQ(2U, dest2.length());
  EXPECT_STREQ("Hi", dest2.c_str());

  // An std::string with an embedded NUL character.
  const char src3[] = "a\0b";
  const String dest3 = std::string(src3, sizeof(src3));
  EXPECT_EQ(sizeof(src3), dest3.length());
  EXPECT_EQ('a', dest3.c_str()[0]);
  EXPECT_EQ('\0', dest3.c_str()[1]);
  EXPECT_EQ('b', dest3.c_str()[2]);
}

TEST(StringTest, ConvertsToStdString) {
  // An empty String.
  const String src1("");
  const std::string dest1 = src1;
  EXPECT_EQ("", dest1);

  // A normal String.
  const String src2("Hi");
  const std::string dest2 = src2;
  EXPECT_EQ("Hi", dest2);

  // A String containing a '\0'.
  const String src3("x\0y", 3);
  const std::string dest3 = src3;
  EXPECT_EQ(std::string("x\0y", 3), dest3);
}

#if GTEST_HAS_GLOBAL_STRING

TEST(StringTest, ConvertsFromGlobalString) {
  // An empty ::string.
  const ::string src1("");
  const String dest1 = src1;
  EXPECT_EQ(0U, dest1.length());
  EXPECT_STREQ("", dest1.c_str());

  // A normal ::string.
  const ::string src2("Hi");
  const String dest2 = src2;
  EXPECT_EQ(2U, dest2.length());
  EXPECT_STREQ("Hi", dest2.c_str());

  // An ::string with an embedded NUL character.
  const char src3[] = "x\0y";
  const String dest3 = ::string(src3, sizeof(src3));
  EXPECT_EQ(sizeof(src3), dest3.length());
  EXPECT_EQ('x', dest3.c_str()[0]);
  EXPECT_EQ('\0', dest3.c_str()[1]);
  EXPECT_EQ('y', dest3.c_str()[2]);
}

TEST(StringTest, ConvertsToGlobalString) {
  // An empty String.
  const String src1("");
  const ::string dest1 = src1;
  EXPECT_EQ("", dest1);

  // A normal String.
  const String src2("Hi");
  const ::string dest2 = src2;
  EXPECT_EQ("Hi", dest2);

  const String src3("x\0y", 3);
  const ::string dest3 = src3;
  EXPECT_EQ(::string("x\0y", 3), dest3);
}

#endif  // GTEST_HAS_GLOBAL_STRING

// Tests String::ShowCStringQuoted().
TEST(StringTest, ShowCStringQuoted) {
  EXPECT_STREQ("(null)",
               String::ShowCStringQuoted(NULL).c_str());
  EXPECT_STREQ("\"\"",
               String::ShowCStringQuoted("").c_str());
  EXPECT_STREQ("\"foo\"",
               String::ShowCStringQuoted("foo").c_str());
}

// Tests String::empty().
TEST(StringTest, Empty) {
  EXPECT_TRUE(String("").empty());
  EXPECT_FALSE(String().empty());
  EXPECT_FALSE(String(NULL).empty());
  EXPECT_FALSE(String("a").empty());
  EXPECT_FALSE(String("\0", 1).empty());
}

// Tests String::Compare().
TEST(StringTest, Compare) {
  // NULL vs NULL.
  EXPECT_EQ(0, String().Compare(String()));

  // NULL vs non-NULL.
  EXPECT_EQ(-1, String().Compare(String("")));

  // Non-NULL vs NULL.
  EXPECT_EQ(1, String("").Compare(String()));

  // The following covers non-NULL vs non-NULL.

  // "" vs "".
  EXPECT_EQ(0, String("").Compare(String("")));

  // "" vs non-"".
  EXPECT_EQ(-1, String("").Compare(String("\0", 1)));
  EXPECT_EQ(-1, String("").Compare(" "));

  // Non-"" vs "".
  EXPECT_EQ(1, String("a").Compare(String("")));

  // The following covers non-"" vs non-"".

  // Same length and equal.
  EXPECT_EQ(0, String("a").Compare(String("a")));

  // Same length and different.
  EXPECT_EQ(-1, String("a\0b", 3).Compare(String("a\0c", 3)));
  EXPECT_EQ(1, String("b").Compare(String("a")));

  // Different lengths.
  EXPECT_EQ(-1, String("a").Compare(String("ab")));
  EXPECT_EQ(-1, String("a").Compare(String("a\0", 2)));
  EXPECT_EQ(1, String("abc").Compare(String("aacd")));
}

// Tests String::operator==().
TEST(StringTest, Equals) {
  const String null(NULL);
  EXPECT_TRUE(null == NULL);  // NOLINT
  EXPECT_FALSE(null == "");  // NOLINT
  EXPECT_FALSE(null == "bar");  // NOLINT

  const String empty("");
  EXPECT_FALSE(empty == NULL);  // NOLINT
  EXPECT_TRUE(empty == "");  // NOLINT
  EXPECT_FALSE(empty == "bar");  // NOLINT

  const String foo("foo");
  EXPECT_FALSE(foo == NULL);  // NOLINT
  EXPECT_FALSE(foo == "");  // NOLINT
  EXPECT_FALSE(foo == "bar");  // NOLINT
  EXPECT_TRUE(foo == "foo");  // NOLINT

  const String bar("x\0y", 3);
  EXPECT_NE(bar, "x");
}

// Tests String::operator!=().
TEST(StringTest, NotEquals) {
  const String null(NULL);
  EXPECT_FALSE(null != NULL);  // NOLINT
  EXPECT_TRUE(null != "");  // NOLINT
  EXPECT_TRUE(null != "bar");  // NOLINT

  const String empty("");
  EXPECT_TRUE(empty != NULL);  // NOLINT
  EXPECT_FALSE(empty != "");  // NOLINT
  EXPECT_TRUE(empty != "bar");  // NOLINT

  const String foo("foo");
  EXPECT_TRUE(foo != NULL);  // NOLINT
  EXPECT_TRUE(foo != "");  // NOLINT
  EXPECT_TRUE(foo != "bar");  // NOLINT
  EXPECT_FALSE(foo != "foo");  // NOLINT

  const String bar("x\0y", 3);
  EXPECT_NE(bar, "x");
}

// Tests String::length().
TEST(StringTest, Length) {
  EXPECT_EQ(0U, String().length());
  EXPECT_EQ(0U, String("").length());
  EXPECT_EQ(2U, String("ab").length());
  EXPECT_EQ(3U, String("a\0b", 3).length());
}

// Tests String::EndsWith().
TEST(StringTest, EndsWith) {
  EXPECT_TRUE(String("foobar").EndsWith("bar"));
  EXPECT_TRUE(String("foobar").EndsWith(""));
  EXPECT_TRUE(String("").EndsWith(""));

  EXPECT_FALSE(String("foobar").EndsWith("foo"));
  EXPECT_FALSE(String("").EndsWith("foo"));
}

// Tests String::EndsWithCaseInsensitive().
TEST(StringTest, EndsWithCaseInsensitive) {
  EXPECT_TRUE(String("foobar").EndsWithCaseInsensitive("BAR"));
  EXPECT_TRUE(String("foobaR").EndsWithCaseInsensitive("bar"));
  EXPECT_TRUE(String("foobar").EndsWithCaseInsensitive(""));
  EXPECT_TRUE(String("").EndsWithCaseInsensitive(""));

  EXPECT_FALSE(String("Foobar").EndsWithCaseInsensitive("foo"));
  EXPECT_FALSE(String("foobar").EndsWithCaseInsensitive("Foo"));
  EXPECT_FALSE(String("").EndsWithCaseInsensitive("foo"));
}

// C++Builder's preprocessor is buggy; it fails to expand macros that
// appear in macro parameters after wide char literals.  Provide an alias
// for NULL as a workaround.
static const wchar_t* const kNull = NULL;

// Tests String::CaseInsensitiveWideCStringEquals
TEST(StringTest, CaseInsensitiveWideCStringEquals) {
  EXPECT_TRUE(String::CaseInsensitiveWideCStringEquals(NULL, NULL));
  EXPECT_FALSE(String::CaseInsensitiveWideCStringEquals(kNull, L""));
  EXPECT_FALSE(String::CaseInsensitiveWideCStringEquals(L"", kNull));
  EXPECT_FALSE(String::CaseInsensitiveWideCStringEquals(kNull, L"foobar"));
  EXPECT_FALSE(String::CaseInsensitiveWideCStringEquals(L"foobar", kNull));
  EXPECT_TRUE(String::CaseInsensitiveWideCStringEquals(L"foobar", L"foobar"));
  EXPECT_TRUE(String::CaseInsensitiveWideCStringEquals(L"foobar", L"FOOBAR"));
  EXPECT_TRUE(String::CaseInsensitiveWideCStringEquals(L"FOOBAR", L"foobar"));
}

// Tests that NULL can be assigned to a String.
TEST(StringTest, CanBeAssignedNULL) {
  const String src(NULL);
  String dest;

  dest = src;
  EXPECT_STREQ(NULL, dest.c_str());
}

// Tests that the empty string "" can be assigned to a String.
TEST(StringTest, CanBeAssignedEmpty) {
  const String src("");
  String dest;

  dest = src;
  EXPECT_STREQ("", dest.c_str());
}

// Tests that a non-empty string can be assigned to a String.
TEST(StringTest, CanBeAssignedNonEmpty) {
  const String src("hello");
  String dest;
  dest = src;
  EXPECT_EQ(5U, dest.length());
  EXPECT_STREQ("hello", dest.c_str());

  const String src2("x\0y", 3);
  String dest2;
  dest2 = src2;
  EXPECT_EQ(3U, dest2.length());
  EXPECT_EQ('x', dest2.c_str()[0]);
  EXPECT_EQ('\0', dest2.c_str()[1]);
  EXPECT_EQ('y', dest2.c_str()[2]);
}

// Tests that a String can be assigned to itself.
TEST(StringTest, CanBeAssignedSelf) {
  String dest("hello");

  // Use explicit function call notation here to suppress self-assign warning.
  dest.operator=(dest);
  EXPECT_STREQ("hello", dest.c_str());
}

// Sun Studio < 12 incorrectly rejects this code due to an overloading
// ambiguity.
#if !(defined(__SUNPRO_CC) && __SUNPRO_CC < 0x590)
// Tests streaming a String.
TEST(StringTest, Streams) {
  EXPECT_EQ(StreamableToString(String()), "(null)");
  EXPECT_EQ(StreamableToString(String("")), "");
  EXPECT_EQ(StreamableToString(String("a\0b", 3)), "a\\0b");
}
#endif

// Tests that String::Format() works.
TEST(StringTest, FormatWorks) {
  // Normal case: the format spec is valid, the arguments match the
  // spec, and the result is < 4095 characters.
  EXPECT_STREQ("Hello, 42", String::Format("%s, %d", "Hello", 42).c_str());

  // Edge case: the result is 4095 characters.
  char buffer[4096];
  const size_t kSize = sizeof(buffer);
  memset(buffer, 'a', kSize - 1);
  buffer[kSize - 1] = '\0';
  EXPECT_STREQ(buffer, String::Format("%s", buffer).c_str());

  // The result needs to be 4096 characters, exceeding Format()'s limit.
  EXPECT_STREQ("<formatting error or buffer exceeded>",
               String::Format("x%s", buffer).c_str());

#if GTEST_OS_LINUX
  // On Linux, invalid format spec should lead to an error message.
  // In other environment (e.g. MSVC on Windows), String::Format() may
  // simply ignore a bad format spec, so this assertion is run on
  // Linux only.
  EXPECT_STREQ("<formatting error or buffer exceeded>",
               String::Format("%").c_str());
#endif
}

#if GTEST_OS_WINDOWS

// Tests String::ShowWideCString().
TEST(StringTest, ShowWideCString) {
  EXPECT_STREQ("(null)",
               String::ShowWideCString(NULL).c_str());
  EXPECT_STREQ("", String::ShowWideCString(L"").c_str());
  EXPECT_STREQ("foo", String::ShowWideCString(L"foo").c_str());
}

// Tests String::ShowWideCStringQuoted().
TEST(StringTest, ShowWideCStringQuoted) {
  EXPECT_STREQ("(null)",
               String::ShowWideCStringQuoted(NULL).c_str());
  EXPECT_STREQ("L\"\"",
               String::ShowWideCStringQuoted(L"").c_str());
  EXPECT_STREQ("L\"foo\"",
               String::ShowWideCStringQuoted(L"foo").c_str());
}

# if GTEST_OS_WINDOWS_MOBILE
TEST(StringTest, AnsiAndUtf16Null) {
  EXPECT_EQ(NULL, String::AnsiToUtf16(NULL));
  EXPECT_EQ(NULL, String::Utf16ToAnsi(NULL));
}

TEST(StringTest, AnsiAndUtf16ConvertBasic) {
  const char* ansi = String::Utf16ToAnsi(L"str");
  EXPECT_STREQ("str", ansi);
  delete [] ansi;
  const WCHAR* utf16 = String::AnsiToUtf16("str");
  EXPECT_EQ(0, wcsncmp(L"str", utf16, 3));
  delete [] utf16;
}

TEST(StringTest, AnsiAndUtf16ConvertPathChars) {
  const char* ansi = String::Utf16ToAnsi(L".:\\ \"*?");
  EXPECT_STREQ(".:\\ \"*?", ansi);
  delete [] ansi;
  const WCHAR* utf16 = String::AnsiToUtf16(".:\\ \"*?");
  EXPECT_EQ(0, wcsncmp(L".:\\ \"*?", utf16, 3));
  delete [] utf16;
}
# endif  // GTEST_OS_WINDOWS_MOBILE

#endif  // GTEST_OS_WINDOWS

// Tests TestProperty construction.
TEST(TestPropertyTest, StringValue) {
  TestProperty property("key", "1");
  EXPECT_STREQ("key", property.key());
  EXPECT_STREQ("1", property.value());
}

// Tests TestProperty replacing a value.
TEST(TestPropertyTest, ReplaceStringValue) {
  TestProperty property("key", "1");
  EXPECT_STREQ("1", property.value());
  property.SetValue("2");
  EXPECT_STREQ("2", property.value());
}

// AddFatalFailure() and AddNonfatalFailure() must be stand-alone
// functions (i.e. their definitions cannot be inlined at the call
// sites), or C++Builder won't compile the code.
static void AddFatalFailure() {
  FAIL() << "Expected fatal failure.";
}

static void AddNonfatalFailure() {
  ADD_FAILURE() << "Expected non-fatal failure.";
}

class ScopedFakeTestPartResultReporterTest : public Test {
 public:  // Must be public and not protected due to a bug in g++ 3.4.2.
  enum FailureMode {
    FATAL_FAILURE,
    NONFATAL_FAILURE
  };
  static void AddFailure(FailureMode failure) {
    if (failure == FATAL_FAILURE) {
      AddFatalFailure();
    } else {
      AddNonfatalFailure();
    }
  }
};

// Tests that ScopedFakeTestPartResultReporter intercepts test
// failures.
TEST_F(ScopedFakeTestPartResultReporterTest, InterceptsTestFailures) {
  TestPartResultArray results;
  {
    ScopedFakeTestPartResultReporter reporter(
        ScopedFakeTestPartResultReporter::INTERCEPT_ONLY_CURRENT_THREAD,
        &results);
    AddFailure(NONFATAL_FAILURE);
    AddFailure(FATAL_FAILURE);
  }

  EXPECT_EQ(2, results.size());
  EXPECT_TRUE(results.GetTestPartResult(0).nonfatally_failed());
  EXPECT_TRUE(results.GetTestPartResult(1).fatally_failed());
}

TEST_F(ScopedFakeTestPartResultReporterTest, DeprecatedConstructor) {
  TestPartResultArray results;
  {
    // Tests, that the deprecated constructor still works.
    ScopedFakeTestPartResultReporter reporter(&results);
    AddFailure(NONFATAL_FAILURE);
  }
  EXPECT_EQ(1, results.size());
}

#if GTEST_IS_THREADSAFE

class ScopedFakeTestPartResultReporterWithThreadsTest
  : public ScopedFakeTestPartResultReporterTest {
 protected:
  static void AddFailureInOtherThread(FailureMode failure) {
    ThreadWithParam<FailureMode> thread(&AddFailure, failure, NULL);
    thread.Join();
  }
};

TEST_F(ScopedFakeTestPartResultReporterWithThreadsTest,
       InterceptsTestFailuresInAllThreads) {
  TestPartResultArray results;
  {
    ScopedFakeTestPartResultReporter reporter(
        ScopedFakeTestPartResultReporter::INTERCEPT_ALL_THREADS, &results);
    AddFailure(NONFATAL_FAILURE);
    AddFailure(FATAL_FAILURE);
    AddFailureInOtherThread(NONFATAL_FAILURE);
    AddFailureInOtherThread(FATAL_FAILURE);
  }

  EXPECT_EQ(4, results.size());
  EXPECT_TRUE(results.GetTestPartResult(0).nonfatally_failed());
  EXPECT_TRUE(results.GetTestPartResult(1).fatally_failed());
  EXPECT_TRUE(results.GetTestPartResult(2).nonfatally_failed());
  EXPECT_TRUE(results.GetTestPartResult(3).fatally_failed());
}

#endif  // GTEST_IS_THREADSAFE

// Tests EXPECT_FATAL_FAILURE{,ON_ALL_THREADS}.  Makes sure that they
// work even if the failure is generated in a called function rather than
// the current context.

typedef ScopedFakeTestPartResultReporterTest ExpectFatalFailureTest;

TEST_F(ExpectFatalFailureTest, CatchesFatalFaliure) {
  EXPECT_FATAL_FAILURE(AddFatalFailure(), "Expected fatal failure.");
}

#if GTEST_HAS_GLOBAL_STRING
TEST_F(ExpectFatalFailureTest, AcceptsStringObject) {
  EXPECT_FATAL_FAILURE(AddFatalFailure(), ::string("Expected fatal failure."));
}
#endif

TEST_F(ExpectFatalFailureTest, AcceptsStdStringObject) {
  EXPECT_FATAL_FAILURE(AddFatalFailure(),
                       ::std::string("Expected fatal failure."));
}

TEST_F(ExpectFatalFailureTest, CatchesFatalFailureOnAllThreads) {
  // We have another test below to verify that the macro catches fatal
  // failures generated on another thread.
  EXPECT_FATAL_FAILURE_ON_ALL_THREADS(AddFatalFailure(),
                                      "Expected fatal failure.");
}

#ifdef __BORLANDC__
// Silences warnings: "Condition is always true"
# pragma option push -w-ccc
#endif

// Tests that EXPECT_FATAL_FAILURE() can be used in a non-void
// function even when the statement in it contains ASSERT_*.

int NonVoidFunction() {
  EXPECT_FATAL_FAILURE(ASSERT_TRUE(false), "");
  EXPECT_FATAL_FAILURE_ON_ALL_THREADS(FAIL(), "");
  return 0;
}

TEST_F(ExpectFatalFailureTest, CanBeUsedInNonVoidFunction) {
  NonVoidFunction();
}

// Tests that EXPECT_FATAL_FAILURE(statement, ...) doesn't abort the
// current function even though 'statement' generates a fatal failure.

void DoesNotAbortHelper(bool* aborted) {
  EXPECT_FATAL_FAILURE(ASSERT_TRUE(false), "");
  EXPECT_FATAL_FAILURE_ON_ALL_THREADS(FAIL(), "");

  *aborted = false;
}

#ifdef __BORLANDC__
// Restores warnings after previous "#pragma option push" suppressed them.
# pragma option pop
#endif

TEST_F(ExpectFatalFailureTest, DoesNotAbort) {
  bool aborted = true;
  DoesNotAbortHelper(&aborted);
  EXPECT_FALSE(aborted);
}

// Tests that the EXPECT_FATAL_FAILURE{,_ON_ALL_THREADS} accepts a
// statement that contains a macro which expands to code containing an
// unprotected comma.

static int global_var = 0;
#define GTEST_USE_UNPROTECTED_COMMA_ global_var++, global_var++

TEST_F(ExpectFatalFailureTest, AcceptsMacroThatExpandsToUnprotectedComma) {
#ifndef __BORLANDC__
  // ICE's in C++Builder.
  EXPECT_FATAL_FAILURE({
    GTEST_USE_UNPROTECTED_COMMA_;
    AddFatalFailure();
  }, "");
#endif

  EXPECT_FATAL_FAILURE_ON_ALL_THREADS({
    GTEST_USE_UNPROTECTED_COMMA_;
    AddFatalFailure();
  }, "");
}

// Tests EXPECT_NONFATAL_FAILURE{,ON_ALL_THREADS}.

typedef ScopedFakeTestPartResultReporterTest ExpectNonfatalFailureTest;

TEST_F(ExpectNonfatalFailureTest, CatchesNonfatalFailure) {
  EXPECT_NONFATAL_FAILURE(AddNonfatalFailure(),
                          "Expected non-fatal failure.");
}

#if GTEST_HAS_GLOBAL_STRING
TEST_F(ExpectNonfatalFailureTest, AcceptsStringObject) {
  EXPECT_NONFATAL_FAILURE(AddNonfatalFailure(),
                          ::string("Expected non-fatal failure."));
}
#endif

TEST_F(ExpectNonfatalFailureTest, AcceptsStdStringObject) {
  EXPECT_NONFATAL_FAILURE(AddNonfatalFailure(),
                          ::std::string("Expected non-fatal failure."));
}

TEST_F(ExpectNonfatalFailureTest, CatchesNonfatalFailureOnAllThreads) {
  // We have another test below to verify that the macro catches
  // non-fatal failures generated on another thread.
  EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(AddNonfatalFailure(),
                                         "Expected non-fatal failure.");
}

// Tests that the EXPECT_NONFATAL_FAILURE{,_ON_ALL_THREADS} accepts a
// statement that contains a macro which expands to code containing an
// unprotected comma.
TEST_F(ExpectNonfatalFailureTest, AcceptsMacroThatExpandsToUnprotectedComma) {
  EXPECT_NONFATAL_FAILURE({
    GTEST_USE_UNPROTECTED_COMMA_;
    AddNonfatalFailure();
  }, "");

  EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS({
    GTEST_USE_UNPROTECTED_COMMA_;
    AddNonfatalFailure();
  }, "");
}

#if GTEST_IS_THREADSAFE

typedef ScopedFakeTestPartResultReporterWithThreadsTest
    ExpectFailureWithThreadsTest;

TEST_F(ExpectFailureWithThreadsTest, ExpectFatalFailureOnAllThreads) {
  EXPECT_FATAL_FAILURE_ON_ALL_THREADS(AddFailureInOtherThread(FATAL_FAILURE),
                                      "Expected fatal failure.");
}

TEST_F(ExpectFailureWithThreadsTest, ExpectNonFatalFailureOnAllThreads) {
  EXPECT_NONFATAL_FAILURE_ON_ALL_THREADS(
      AddFailureInOtherThread(NONFATAL_FAILURE), "Expected non-fatal failure.");
}

#endif  // GTEST_IS_THREADSAFE

// Tests the TestProperty class.

TEST(TestPropertyTest, ConstructorWorks) {
  const TestProperty property("key", "value");
  EXPECT_STREQ("key", property.key());
  EXPECT_STREQ("value", property.value());
}

TEST(TestPropertyTest, SetValue) {
  TestProperty property("key", "value_1");
  EXPECT_STREQ("key", property.key());
  property.SetValue("value_2");
  EXPECT_STREQ("key", property.key());
  EXPECT_STREQ("value_2", property.value());
}

// Tests the TestResult class

// The test fixture for testing TestResult.
class TestResultTest : public Test {
 protected:
  typedef std::vector<TestPartResult> TPRVector;

  // We make use of 2 TestPartResult objects,
  TestPartResult * pr1, * pr2;

  // ... and 3 TestResult objects.
  TestResult * r0, * r1, * r2;

  virtual void SetUp() {
    // pr1 is for success.
    pr1 = new TestPartResult(TestPartResult::kSuccess,
                             "foo/bar.cc",
                             10,
                             "Success!");

    // pr2 is for fatal failure.
    pr2 = new TestPartResult(TestPartResult::kFatalFailure,
                             "foo/bar.cc",
                             -1,  // This line number means "unknown"
                             "Failure!");

    // Creates the TestResult objects.
    r0 = new TestResult();
    r1 = new TestResult();
    r2 = new TestResult();

    // In order to test TestResult, we need to modify its internal
    // state, in particular the TestPartResult vector it holds.
    // test_part_results() returns a const reference to this vector.
    // We cast it to a non-const object s.t. it can be modified (yes,
    // this is a hack).
    TPRVector* results1 = const_cast<TPRVector*>(
        &TestResultAccessor::test_part_results(*r1));
    TPRVector* results2 = const_cast<TPRVector*>(
        &TestResultAccessor::test_part_results(*r2));

    // r0 is an empty TestResult.

    // r1 contains a single SUCCESS TestPartResult.
    results1->push_back(*pr1);

    // r2 contains a SUCCESS, and a FAILURE.
    results2->push_back(*pr1);
    results2->push_back(*pr2);
  }

  virtual void TearDown() {
    delete pr1;
    delete pr2;

    delete r0;
    delete r1;
    delete r2;
  }

  // Helper that compares two two TestPartResults.
  static void CompareTestPartResult(const TestPartResult& expected,
                                    const TestPartResult& actual) {
    EXPECT_EQ(expected.type(), actual.type());
    EXPECT_STREQ(expected.file_name(), actual.file_name());
    EXPECT_EQ(expected.line_number(), actual.line_number());
    EXPECT_STREQ(expected.summary(), actual.summary());
    EXPECT_STREQ(expected.message(), actual.message());
    EXPECT_EQ(expected.passed(), actual.passed());
    EXPECT_EQ(expected.failed(), actual.failed());
    EXPECT_EQ(expected.nonfatally_failed(), actual.nonfatally_failed());
    EXPECT_EQ(expected.fatally_failed(), actual.fatally_failed());
  }
};

// Tests TestResult::total_part_count().
TEST_F(TestResultTest, total_part_count) {
  ASSERT_EQ(0, r0->total_part_count());
  ASSERT_EQ(1, r1->total_part_count());
  ASSERT_EQ(2, r2->total_part_count());
}

// Tests TestResult::Passed().
TEST_F(TestResultTest, Passed) {
  ASSERT_TRUE(r0->Passed());
  ASSERT_TRUE(r1->Passed());
  ASSERT_FALSE(r2->Passed());
}

// Tests TestResult::Failed().
TEST_F(TestResultTest, Failed) {
  ASSERT_FALSE(r0->Failed());
  ASSERT_FALSE(r1->Failed());
  ASSERT_TRUE(r2->Failed());
}

// Tests TestResult::GetTestPartResult().

typedef TestResultTest TestResultDeathTest;

TEST_F(TestResultDeathTest, GetTestPartResult) {
  CompareTestPartResult(*pr1, r2->GetTestPartResult(0));
  CompareTestPartResult(*pr2, r2->GetTestPartResult(1));
  EXPECT_DEATH_IF_SUPPORTED(r2->GetTestPartResult(2), "");
  EXPECT_DEATH_IF_SUPPORTED(r2->GetTestPartResult(-1), "");
}

// Tests TestResult has no properties when none are added.
TEST(TestResultPropertyTest, NoPropertiesFoundWhenNoneAreAdded) {
  TestResult test_result;
  ASSERT_EQ(0, test_result.test_property_count());
}

// Tests TestResult has the expected property when added.
TEST(TestResultPropertyTest, OnePropertyFoundWhenAdded) {
  TestResult test_result;
  TestProperty property("key_1", "1");
  TestResultAccessor::RecordProperty(&test_result, property);
  ASSERT_EQ(1, test_result.test_property_count());
  const TestProperty& actual_property = test_result.GetTestProperty(0);
  EXPECT_STREQ("key_1", actual_property.key());
  EXPECT_STREQ("1", actual_property.value());
}

// Tests TestResult has multiple properties when added.
TEST(TestResultPropertyTest, MultiplePropertiesFoundWhenAdded) {
  TestResult test_result;
  TestProperty property_1("key_1", "1");
  TestProperty property_2("key_2", "2");
  TestResultAccessor::RecordProperty(&test_result, property_1);
  TestResultAccessor::RecordProperty(&test_result, property_2);
  ASSERT_EQ(2, test_result.test_property_count());
  const TestProperty& actual_property_1 = test_result.GetTestProperty(0);
  EXPECT_STREQ("key_1", actual_property_1.key());
  EXPECT_STREQ("1", actual_property_1.value());

  const TestProperty& actual_property_2 = test_result.GetTestProperty(1);
  EXPECT_STREQ("key_2", actual_property_2.key());
  EXPECT_STREQ("2", actual_property_2.value());
}

// Tests TestResult::RecordProperty() overrides values for duplicate keys.
TEST(TestResultPropertyTest, OverridesValuesForDuplicateKeys) {
  TestResult test_result;
  TestProperty property_1_1("key_1", "1");
  TestProperty property_2_1("key_2", "2");
  TestProperty property_1_2("key_1", "12");
  TestProperty property_2_2("key_2", "22");
  TestResultAccessor::RecordProperty(&test_result, property_1_1);
  TestResultAccessor::RecordProperty(&test_result, property_2_1);
  TestResultAccessor::RecordProperty(&test_result, property_1_2);
  TestResultAccessor::RecordProperty(&test_result, property_2_2);

  ASSERT_EQ(2, test_result.test_property_count());
  const TestProperty& actual_property_1 = test_result.GetTestProperty(0);
  EXPECT_STREQ("key_1", actual_property_1.key());
  EXPECT_STREQ("12", actual_property_1.value());

  const TestProperty& actual_property_2 = test_result.GetTestProperty(1);
  EXPECT_STREQ("key_2", actual_property_2.key());
  EXPECT_STREQ("22", actual_property_2.value());
}

// Tests TestResult::GetTestProperty().
TEST(TestResultPropertyDeathTest, GetTestProperty) {
  TestResult test_result;
  TestProperty property_1("key_1", "1");
  TestProperty property_2("key_2", "2");
  TestProperty property_3("key_3", "3");
  TestResultAccessor::RecordProperty(&test_result, property_1);
  TestResultAccessor::RecordProperty(&test_result, property_2);
  TestResultAccessor::RecordProperty(&test_result, property_3);

  const TestProperty& fetched_property_1 = test_result.GetTestProperty(0);
  const TestProperty& fetched_property_2 = test_result.GetTestProperty(1);
  const TestProperty& fetched_property_3 = test_result.GetTestProperty(2);

  EXPECT_STREQ("key_1", fetched_property_1.key());
  EXPECT_STREQ("1", fetched_property_1.value());

  EXPECT_STREQ("key_2", fetched_property_2.key());
  EXPECT_STREQ("2", fetched_property_2.value());

  EXPECT_STREQ("key_3", fetched_property_3.key());
  EXPECT_STREQ("3", fetched_property_3.value());

  EXPECT_DEATH_IF_SUPPORTED(test_result.GetTestProperty(3), "");
  EXPECT_DEATH_IF_SUPPORTED(test_result.GetTestProperty(-1), "");
}

// When a property using a reserved key is supplied to this function, it tests
// that a non-fatal failure is added, a fatal failure is not added, and that the
// property is not recorded.
void ExpectNonFatalFailureRecordingPropertyWithReservedKey(const char* key) {
  TestResult test_result;
  TestProperty property(key, "1");
  EXPECT_NONFATAL_FAILURE(
      TestResultAccessor::RecordProperty(&test_result, property),
      "Reserved key");
  ASSERT_EQ(0, test_result.test_property_count()) << "Not recorded";
}

// Attempting to recording a property with the Reserved literal "name"
// should add a non-fatal failure and the property should not be recorded.
TEST(TestResultPropertyTest, AddFailureWhenUsingReservedKeyCalledName) {
  ExpectNonFatalFailureRecordingPropertyWithReservedKey("name");
}

// Attempting to recording a property with the Reserved literal "status"
// should add a non-fatal failure and the property should not be recorded.
TEST(TestResultPropertyTest, AddFailureWhenUsingReservedKeyCalledStatus) {
  ExpectNonFatalFailureRecordingPropertyWithReservedKey("status");
}

// Attempting to recording a property with the Reserved literal "time"
// should add a non-fatal failure and the property should not be recorded.
TEST(TestResultPropertyTest, AddFailureWhenUsingReservedKeyCalledTime) {
  ExpectNonFatalFailureRecordingPropertyWithReservedKey("time");
}

// Attempting to recording a property with the Reserved literal "classname"
// should add a non-fatal failure and the property should not be recorded.
TEST(TestResultPropertyTest, AddFailureWhenUsingReservedKeyCalledClassname) {
  ExpectNonFatalFailureRecordingPropertyWithReservedKey("classname");
}

// Tests that GTestFlagSaver works on Windows and Mac.

class GTestFlagSaverTest : public Test {
 protected:
  // Saves the Google Test flags such that we can restore them later, and
  // then sets them to their default values.  This will be called
  // before the first test in this test case is run.
  static void SetUpTestCase() {
    saver_ = new GTestFlagSaver;

    GTEST_FLAG(also_run_disabled_tests) = false;
    GTEST_FLAG(break_on_failure) = false;
    GTEST_FLAG(catch_exceptions) = false;
    GTEST_FLAG(death_test_use_fork) = false;
    GTEST_FLAG(color) = "auto";
    GTEST_FLAG(filter) = "";
    GTEST_FLAG(list_tests) = false;
    GTEST_FLAG(output) = "";
    GTEST_FLAG(print_time) = true;
    GTEST_FLAG(random_seed) = 0;
    GTEST_FLAG(repeat) = 1;
    GTEST_FLAG(shuffle) = false;
    GTEST_FLAG(stack_trace_depth) = kMaxStackTraceDepth;
    GTEST_FLAG(stream_result_to) = "";
    GTEST_FLAG(throw_on_failure) = false;
  }

  // Restores the Google Test flags that the tests have modified.  This will
  // be called after the last test in this test case is run.
  static void TearDownTestCase() {
    delete saver_;
    saver_ = NULL;
  }

  // Verifies that the Google Test flags have their default values, and then
  // modifies each of them.
  void VerifyAndModifyFlags() {
    EXPECT_FALSE(GTEST_FLAG(also_run_disabled_tests));
    EXPECT_FALSE(GTEST_FLAG(break_on_failure));
    EXPECT_FALSE(GTEST_FLAG(catch_exceptions));
    EXPECT_STREQ("auto", GTEST_FLAG(color).c_str());
    EXPECT_FALSE(GTEST_FLAG(death_test_use_fork));
    EXPECT_STREQ("", GTEST_FLAG(filter).c_str());
    EXPECT_FALSE(GTEST_FLAG(list_tests));
    EXPECT_STREQ("", GTEST_FLAG(output).c_str());
    EXPECT_TRUE(GTEST_FLAG(print_time));
    EXPECT_EQ(0, GTEST_FLAG(random_seed));
    EXPECT_EQ(1, GTEST_FLAG(repeat));
    EXPECT_FALSE(GTEST_FLAG(shuffle));
    EXPECT_EQ(kMaxStackTraceDepth, GTEST_FLAG(stack_trace_depth));
    EXPECT_STREQ("", GTEST_FLAG(stream_result_to).c_str());
    EXPECT_FALSE(GTEST_FLAG(throw_on_failure));

    GTEST_FLAG(also_run_disabled_tests) = true;
    GTEST_FLAG(break_on_failure) = true;
    GTEST_FLAG(catch_exceptions) = true;
    GTEST_FLAG(color) = "no";
    GTEST_FLAG(death_test_use_fork) = true;
    GTEST_FLAG(filter) = "abc";
    GTEST_FLAG(list_tests) = true;
    GTEST_FLAG(output) = "xml:foo.xml";
    GTEST_FLAG(print_time) = false;
    GTEST_FLAG(random_seed) = 1;
    GTEST_FLAG(repeat) = 100;
    GTEST_FLAG(shuffle) = true;
    GTEST_FLAG(stack_trace_depth) = 1;
    GTEST_FLAG(stream_result_to) = "localhost:1234";
    GTEST_FLAG(throw_on_failure) = true;
  }

 private:
  // For saving Google Test flags during this test case.
  static GTestFlagSaver* saver_;
};

GTestFlagSaver* GTestFlagSaverTest::saver_ = NULL;

// Google Test doesn't guarantee the order of tests.  The following two
// tests are designed to work regardless of their order.

// Modifies the Google Test flags in the test body.
TEST_F(GTestFlagSaverTest, ModifyGTestFlags) {
  VerifyAndModifyFlags();
}

// Verifies that the Google Test flags in the body of the previous test were
// restored to their original values.
TEST_F(GTestFlagSaverTest, VerifyGTestFlags) {
  VerifyAndModifyFlags();
}

// Sets an environment variable with the given name to the given
// value.  If the value argument is "", unsets the environment
// variable.  The caller must ensure that both arguments are not NULL.
static void SetEnv(const char* name, const char* value) {
#if GTEST_OS_WINDOWS_MOBILE
  // Environment variables are not supported on Windows CE.
  return;
#elif defined(__BORLANDC__) || defined(__SunOS_5_8) || defined(__SunOS_5_9)
  // C++Builder's putenv only stores a pointer to its parameter; we have to
  // ensure that the string remains valid as long as it might be needed.
  // We use an std::map to do so.
  static std::map<String, String*> added_env;

  // Because putenv stores a pointer to the string buffer, we can't delete the
  // previous string (if present) until after it's replaced.
  String *prev_env = NULL;
  if (added_env.find(name) != added_env.end()) {
    prev_env = added_env[name];
  }
  added_env[name] = new String((Message() << name << "=" << value).GetString());

  // The standard signature of putenv accepts a 'char*' argument. Other
  // implementations, like C++Builder's, accept a 'const char*'.
  // We cast away the 'const' since that would work for both variants.
  putenv(const_cast<char*>(added_env[name]->c_str()));
  delete prev_env;
#elif GTEST_OS_WINDOWS  // If we are on Windows proper.
  _putenv((Message() << name << "=" << value).GetString().c_str());
#else
  if (*value == '\0') {
    unsetenv(name);
  } else {
    setenv(name, value, 1);
  }
#endif  // GTEST_OS_WINDOWS_MOBILE
}

#if !GTEST_OS_WINDOWS_MOBILE
// Environment variables are not supported on Windows CE.

using testing::internal::Int32FromGTestEnv;

// Tests Int32FromGTestEnv().

// Tests that Int32FromGTestEnv() returns the default value when the
// environment variable is not set.
TEST(Int32FromGTestEnvTest, ReturnsDefaultWhenVariableIsNotSet) {
  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "TEMP", "");
  EXPECT_EQ(10, Int32FromGTestEnv("temp", 10));
}

// Tests that Int32FromGTestEnv() returns the default value when the
// environment variable overflows as an Int32.
TEST(Int32FromGTestEnvTest, ReturnsDefaultWhenValueOverflows) {
  printf("(expecting 2 warnings)\n");

  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "TEMP", "12345678987654321");
  EXPECT_EQ(20, Int32FromGTestEnv("temp", 20));

  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "TEMP", "-12345678987654321");
  EXPECT_EQ(30, Int32FromGTestEnv("temp", 30));
}

// Tests that Int32FromGTestEnv() returns the default value when the
// environment variable does not represent a valid decimal integer.
TEST(Int32FromGTestEnvTest, ReturnsDefaultWhenValueIsInvalid) {
  printf("(expecting 2 warnings)\n");

  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "TEMP", "A1");
  EXPECT_EQ(40, Int32FromGTestEnv("temp", 40));

  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "TEMP", "12X");
  EXPECT_EQ(50, Int32FromGTestEnv("temp", 50));
}

// Tests that Int32FromGTestEnv() parses and returns the value of the
// environment variable when it represents a valid decimal integer in
// the range of an Int32.
TEST(Int32FromGTestEnvTest, ParsesAndReturnsValidValue) {
  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "TEMP", "123");
  EXPECT_EQ(123, Int32FromGTestEnv("temp", 0));

  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "TEMP", "-321");
  EXPECT_EQ(-321, Int32FromGTestEnv("temp", 0));
}
#endif  // !GTEST_OS_WINDOWS_MOBILE

// Tests ParseInt32Flag().

// Tests that ParseInt32Flag() returns false and doesn't change the
// output value when the flag has wrong format
TEST(ParseInt32FlagTest, ReturnsFalseForInvalidFlag) {
  Int32 value = 123;
  EXPECT_FALSE(ParseInt32Flag("--a=100", "b", &value));
  EXPECT_EQ(123, value);

  EXPECT_FALSE(ParseInt32Flag("a=100", "a", &value));
  EXPECT_EQ(123, value);
}

// Tests that ParseInt32Flag() returns false and doesn't change the
// output value when the flag overflows as an Int32.
TEST(ParseInt32FlagTest, ReturnsDefaultWhenValueOverflows) {
  printf("(expecting 2 warnings)\n");

  Int32 value = 123;
  EXPECT_FALSE(ParseInt32Flag("--abc=12345678987654321", "abc", &value));
  EXPECT_EQ(123, value);

  EXPECT_FALSE(ParseInt32Flag("--abc=-12345678987654321", "abc", &value));
  EXPECT_EQ(123, value);
}

// Tests that ParseInt32Flag() returns false and doesn't change the
// output value when the flag does not represent a valid decimal
// integer.
TEST(ParseInt32FlagTest, ReturnsDefaultWhenValueIsInvalid) {
  printf("(expecting 2 warnings)\n");

  Int32 value = 123;
  EXPECT_FALSE(ParseInt32Flag("--abc=A1", "abc", &value));
  EXPECT_EQ(123, value);

  EXPECT_FALSE(ParseInt32Flag("--abc=12X", "abc", &value));
  EXPECT_EQ(123, value);
}

// Tests that ParseInt32Flag() parses the value of the flag and
// returns true when the flag represents a valid decimal integer in
// the range of an Int32.
TEST(ParseInt32FlagTest, ParsesAndReturnsValidValue) {
  Int32 value = 123;
  EXPECT_TRUE(ParseInt32Flag("--" GTEST_FLAG_PREFIX_ "abc=456", "abc", &value));
  EXPECT_EQ(456, value);

  EXPECT_TRUE(ParseInt32Flag("--" GTEST_FLAG_PREFIX_ "abc=-789",
                             "abc", &value));
  EXPECT_EQ(-789, value);
}

// Tests that Int32FromEnvOrDie() parses the value of the var or
// returns the correct default.
// Environment variables are not supported on Windows CE.
#if !GTEST_OS_WINDOWS_MOBILE
TEST(Int32FromEnvOrDieTest, ParsesAndReturnsValidValue) {
  EXPECT_EQ(333, Int32FromEnvOrDie(GTEST_FLAG_PREFIX_UPPER_ "UnsetVar", 333));
  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "UnsetVar", "123");
  EXPECT_EQ(123, Int32FromEnvOrDie(GTEST_FLAG_PREFIX_UPPER_ "UnsetVar", 333));
  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "UnsetVar", "-123");
  EXPECT_EQ(-123, Int32FromEnvOrDie(GTEST_FLAG_PREFIX_UPPER_ "UnsetVar", 333));
}
#endif  // !GTEST_OS_WINDOWS_MOBILE

// Tests that Int32FromEnvOrDie() aborts with an error message
// if the variable is not an Int32.
TEST(Int32FromEnvOrDieDeathTest, AbortsOnFailure) {
  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "VAR", "xxx");
  EXPECT_DEATH_IF_SUPPORTED(
      Int32FromEnvOrDie(GTEST_FLAG_PREFIX_UPPER_ "VAR", 123),
      ".*");
}

// Tests that Int32FromEnvOrDie() aborts with an error message
// if the variable cannot be represnted by an Int32.
TEST(Int32FromEnvOrDieDeathTest, AbortsOnInt32Overflow) {
  SetEnv(GTEST_FLAG_PREFIX_UPPER_ "VAR", "1234567891234567891234");
  EXPECT_DEATH_IF_SUPPORTED(
      Int32FromEnvOrDie(GTEST_FLAG_PREFIX_UPPER_ "VAR", 123),
      ".*");
}

// Tests that ShouldRunTestOnShard() selects all tests
// where there is 1 shard.
TEST(ShouldRunTestOnShardTest, IsPartitionWhenThereIsOneShard) {
  EXPECT_TRUE(ShouldRunTestOnShard(1, 0, 0));
  EXPECT_TRUE(ShouldRunTestOnShard(1, 0, 1));
  EXPECT_TRUE(ShouldRunTestOnShard(1, 0, 2));
  EXPECT_TRUE(ShouldRunTestOnShard(1, 0, 3));
  EXPECT_TRUE(ShouldRunTestOnShard(1, 0, 4));
}

class ShouldShardTest : public testing::Test {
 protected:
  virtual void SetUp() {
    index_var_ = GTEST_FLAG_PREFIX_UPPER_ "INDEX";
    total_var_ = GTEST_FLAG_PREFIX_UPPER_ "TOTAL";
  }

  virtual void TearDown() {
    SetEnv(index_var_, "");
    SetEnv(total_var_, "");
  }

  const char* index_var_;
  const char* total_var_;
};

// Tests that sharding is disabled if neither of the environment variables
// are set.
TEST_F(ShouldShardTest, ReturnsFalseWhenNeitherEnvVarIsSet) {
  SetEnv(index_var_, "");
  SetEnv(total_var_, "");

  EXPECT_FALSE(ShouldShard(total_var_, index_var_, false));
  EXPECT_FALSE(ShouldShard(total_var_, index_var_, true));
}

// Tests that sharding is not enabled if total_shards  == 1.
TEST_F(ShouldShardTest, ReturnsFalseWhenTotalShardIsOne) {
  SetEnv(index_var_, "0");
  SetEnv(total_var_, "1");
  EXPECT_FALSE(ShouldShard(total_var_, index_var_, false));
  EXPECT_FALSE(ShouldShard(total_var_, index_var_, true));
}

// Tests that sharding is enabled if total_shards > 1 and
// we are not in a death test subprocess.
// Environment variables are not supported on Windows CE.
#if !GTEST_OS_WINDOWS_MOBILE
TEST_F(ShouldShardTest, WorksWhenShardEnvVarsAreValid) {
  SetEnv(index_var_, "4");
  SetEnv(total_var_, "22");
  EXPECT_TRUE(ShouldShard(total_var_, index_var_, false));
  EXPECT_FALSE(ShouldShard(total_var_, index_var_, true));

  SetEnv(index_var_, "8");
  SetEnv(total_var_, "9");
  EXPECT_TRUE(ShouldShard(total_var_, index_var_, false));
  EXPECT_FALSE(ShouldShard(total_var_, index_var_, true));

  SetEnv(index_var_, "0");
  SetEnv(total_var_, "9");
  EXPECT_TRUE(ShouldShard(total_var_, index_var_, false));
  EXPECT_FALSE(ShouldShard(total_var_, index_var_, true));
}
#endif  // !GTEST_OS_WINDOWS_MOBILE

// Tests that we exit in error if the sharding values are not valid.

typedef ShouldShardTest ShouldShardDeathTest;

TEST_F(ShouldShardDeathTest, AbortsWhenShardingEnvVarsAreInvalid) {
  SetEnv(index_var_, "4");
  SetEnv(total_var_, "4");
  EXPECT_DEATH_IF_SUPPORTED(ShouldShard(total_var_, index_var_, false), ".*");

  SetEnv(index_var_, "4");
  SetEnv(total_var_, "-2");
  EXPECT_DEATH_IF_SUPPORTED(ShouldShard(total_var_, index_var_, false), ".*");

  SetEnv(index_var_, "5");
  SetEnv(total_var_, "");
  EXPECT_DEATH_IF_SUPPORTED(ShouldShard(total_var_, index_var_, false), ".*");

  SetEnv(index_var_, "");
  SetEnv(total_var_, "5");
  EXPECT_DEATH_IF_SUPPORTED(ShouldShard(total_var_, index_var_, false), ".*");
}

// Tests that ShouldRunTestOnShard is a partition when 5
// shards are used.
TEST(ShouldRunTestOnShardTest, IsPartitionWhenThereAreFiveShards) {
  // Choose an arbitrary number of tests and shards.
  const int num_tests = 17;
  const int num_shards = 5;

  // Check partitioning: each test should be on exactly 1 shard.
  for (int test_id = 0; test_id < num_tests; test_id++) {
    int prev_selected_shard_index = -1;
    for (int shard_index = 0; shard_index < num_shards; shard_index++) {
      if (ShouldRunTestOnShard(num_shards, shard_index, test_id)) {
        if (prev_selected_shard_index < 0) {
          prev_selected_shard_index = shard_index;
        } else {
          ADD_FAILURE() << "Shard " << prev_selected_shard_index << " and "
            << shard_index << " are both selected to run test " << test_id;
        }
      }
    }
  }

  // Check balance: This is not required by the sharding protocol, but is a
  // desirable property for performance.
  for (int shard_index = 0; shard_index < num_shards; shard_index++) {
    int num_tests_on_shard = 0;
    for (int test_id = 0; test_id < num_tests; test_id++) {
      num_tests_on_shard +=
        ShouldRunTestOnShard(num_shards, shard_index, test_id);
    }
    EXPECT_GE(num_tests_on_shard, num_tests / num_shards);
  }
}

// For the same reason we are not explicitly testing everything in the
// Test class, there are no separate tests for the following classes
// (except for some trivial cases):
//
//   TestCase, UnitTest, UnitTestResultPrinter.
//
// Similarly, there are no separate tests for the following macros:
//
//   TEST, TEST_F, RUN_ALL_TESTS

TEST(UnitTestTest, CanGetOriginalWorkingDir) {
  ASSERT_TRUE(UnitTest::GetInstance()->original_working_dir() != NULL);
  EXPECT_STRNE(UnitTest::GetInstance()->original_working_dir(), "");
}

TEST(UnitTestTest, ReturnsPlausibleTimestamp) {
  EXPECT_LT(0, UnitTest::GetInstance()->start_timestamp());
  EXPECT_LE(UnitTest::GetInstance()->start_timestamp(), GetTimeInMillis());
}

// This group of tests is for predicate assertions (ASSERT_PRED*, etc)
// of various arities.  They do not attempt to be exhaustive.  Rather,
// view them as smoke tests that can be easily reviewed and verified.
// A more complete set of tests for predicate assertions can be found
// in gtest_pred_impl_unittest.cc.

// First, some predicates and predicate-formatters needed by the tests.

// Returns true iff the argument is an even number.
bool IsEven(int n) {
  return (n % 2) == 0;
}

// A functor that returns true iff the argument is an even number.
struct IsEvenFunctor {
  bool operator()(int n) { return IsEven(n); }
};

// A predicate-formatter function that asserts the argument is an even
// number.
AssertionResult AssertIsEven(const char* expr, int n) {
  if (IsEven(n)) {
    return AssertionSuccess();
  }

  Message msg;
  msg << expr << " evaluates to " << n << ", which is not even.";
  return AssertionFailure(msg);
}

// A predicate function that returns AssertionResult for use in
// EXPECT/ASSERT_TRUE/FALSE.
AssertionResult ResultIsEven(int n) {
  if (IsEven(n))
    return AssertionSuccess() << n << " is even";
  else
    return AssertionFailure() << n << " is odd";
}

// A predicate function that returns AssertionResult but gives no
// explanation why it succeeds. Needed for testing that
// EXPECT/ASSERT_FALSE handles such functions correctly.
AssertionResult ResultIsEvenNoExplanation(int n) {
  if (IsEven(n))
    return AssertionSuccess();
  else
    return AssertionFailure() << n << " is odd";
}

// A predicate-formatter functor that asserts the argument is an even
// number.
struct AssertIsEvenFunctor {
  AssertionResult operator()(const char* expr, int n) {
    return AssertIsEven(expr, n);
  }
};

// Returns true iff the sum of the arguments is an even number.
bool SumIsEven2(int n1, int n2) {
  return IsEven(n1 + n2);
}

// A functor that returns true iff the sum of the arguments is an even
// number.
struct SumIsEven3Functor {
  bool operator()(int n1, int n2, int n3) {
    return IsEven(n1 + n2 + n3);
  }
};

// A predicate-formatter function that asserts the sum of the
// arguments is an even number.
AssertionResult AssertSumIsEven4(
    const char* e1, const char* e2, const char* e3, const char* e4,
    int n1, int n2, int n3, int n4) {
  const int sum = n1 + n2 + n3 + n4;
  if (IsEven(sum)) {
    return AssertionSuccess();
  }

  Message msg;
  msg << e1 << " + " << e2 << " + " << e3 << " + " << e4
      << " (" << n1 << " + " << n2 << " + " << n3 << " + " << n4
      << ") evaluates to " << sum << ", which is not even.";
  return AssertionFailure(msg);
}

// A predicate-formatter functor that asserts the sum of the arguments
// is an even number.
struct AssertSumIsEven5Functor {
  AssertionResult operator()(
      const char* e1, const char* e2, const char* e3, const char* e4,
      const char* e5, int n1, int n2, int n3, int n4, int n5) {
    const int sum = n1 + n2 + n3 + n4 + n5;
    if (IsEven(sum)) {
      return AssertionSuccess();
    }

    Message msg;
    msg << e1 << " + " << e2 << " + " << e3 << " + " << e4 << " + " << e5
        << " ("
        << n1 << " + " << n2 << " + " << n3 << " + " << n4 << " + " << n5
        << ") evaluates to " << sum << ", which is not even.";
    return AssertionFailure(msg);
  }
};


// Tests unary predicate assertions.

// Tests unary predicate assertions that don't use a custom formatter.
TEST(Pred1Test, WithoutFormat) {
  // Success cases.
  EXPECT_PRED1(IsEvenFunctor(), 2) << "This failure is UNEXPECTED!";
  ASSERT_PRED1(IsEven, 4);

  // Failure cases.
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED1(IsEven, 5) << "This failure is expected.";
  }, "This failure is expected.");
  EXPECT_FATAL_FAILURE(ASSERT_PRED1(IsEvenFunctor(), 5),
                       "evaluates to false");
}

// Tests unary predicate assertions that use a custom formatter.
TEST(Pred1Test, WithFormat) {
  // Success cases.
  EXPECT_PRED_FORMAT1(AssertIsEven, 2);
  ASSERT_PRED_FORMAT1(AssertIsEvenFunctor(), 4)
    << "This failure is UNEXPECTED!";

  // Failure cases.
  const int n = 5;
  EXPECT_NONFATAL_FAILURE(EXPECT_PRED_FORMAT1(AssertIsEvenFunctor(), n),
                          "n evaluates to 5, which is not even.");
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_PRED_FORMAT1(AssertIsEven, 5) << "This failure is expected.";
  }, "This failure is expected.");
}

// Tests that unary predicate assertions evaluates their arguments
// exactly once.
TEST(Pred1Test, SingleEvaluationOnFailure) {
  // A success case.
  static int n = 0;
  EXPECT_PRED1(IsEven, n++);
  EXPECT_EQ(1, n) << "The argument is not evaluated exactly once.";

  // A failure case.
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_PRED_FORMAT1(AssertIsEvenFunctor(), n++)
        << "This failure is expected.";
  }, "This failure is expected.");
  EXPECT_EQ(2, n) << "The argument is not evaluated exactly once.";
}


// Tests predicate assertions whose arity is >= 2.

// Tests predicate assertions that don't use a custom formatter.
TEST(PredTest, WithoutFormat) {
  // Success cases.
  ASSERT_PRED2(SumIsEven2, 2, 4) << "This failure is UNEXPECTED!";
  EXPECT_PRED3(SumIsEven3Functor(), 4, 6, 8);

  // Failure cases.
  const int n1 = 1;
  const int n2 = 2;
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED2(SumIsEven2, n1, n2) << "This failure is expected.";
  }, "This failure is expected.");
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_PRED3(SumIsEven3Functor(), 1, 2, 4);
  }, "evaluates to false");
}

// Tests predicate assertions that use a custom formatter.
TEST(PredTest, WithFormat) {
  // Success cases.
  ASSERT_PRED_FORMAT4(AssertSumIsEven4, 4, 6, 8, 10) <<
    "This failure is UNEXPECTED!";
  EXPECT_PRED_FORMAT5(AssertSumIsEven5Functor(), 2, 4, 6, 8, 10);

  // Failure cases.
  const int n1 = 1;
  const int n2 = 2;
  const int n3 = 4;
  const int n4 = 6;
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED_FORMAT4(AssertSumIsEven4, n1, n2, n3, n4);
  }, "evaluates to 13, which is not even.");
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_PRED_FORMAT5(AssertSumIsEven5Functor(), 1, 2, 4, 6, 8)
        << "This failure is expected.";
  }, "This failure is expected.");
}

// Tests that predicate assertions evaluates their arguments
// exactly once.
TEST(PredTest, SingleEvaluationOnFailure) {
  // A success case.
  int n1 = 0;
  int n2 = 0;
  EXPECT_PRED2(SumIsEven2, n1++, n2++);
  EXPECT_EQ(1, n1) << "Argument 1 is not evaluated exactly once.";
  EXPECT_EQ(1, n2) << "Argument 2 is not evaluated exactly once.";

  // Another success case.
  n1 = n2 = 0;
  int n3 = 0;
  int n4 = 0;
  int n5 = 0;
  ASSERT_PRED_FORMAT5(AssertSumIsEven5Functor(),
                      n1++, n2++, n3++, n4++, n5++)
                        << "This failure is UNEXPECTED!";
  EXPECT_EQ(1, n1) << "Argument 1 is not evaluated exactly once.";
  EXPECT_EQ(1, n2) << "Argument 2 is not evaluated exactly once.";
  EXPECT_EQ(1, n3) << "Argument 3 is not evaluated exactly once.";
  EXPECT_EQ(1, n4) << "Argument 4 is not evaluated exactly once.";
  EXPECT_EQ(1, n5) << "Argument 5 is not evaluated exactly once.";

  // A failure case.
  n1 = n2 = n3 = 0;
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED3(SumIsEven3Functor(), ++n1, n2++, n3++)
        << "This failure is expected.";
  }, "This failure is expected.");
  EXPECT_EQ(1, n1) << "Argument 1 is not evaluated exactly once.";
  EXPECT_EQ(1, n2) << "Argument 2 is not evaluated exactly once.";
  EXPECT_EQ(1, n3) << "Argument 3 is not evaluated exactly once.";

  // Another failure case.
  n1 = n2 = n3 = n4 = 0;
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED_FORMAT4(AssertSumIsEven4, ++n1, n2++, n3++, n4++);
  }, "evaluates to 1, which is not even.");
  EXPECT_EQ(1, n1) << "Argument 1 is not evaluated exactly once.";
  EXPECT_EQ(1, n2) << "Argument 2 is not evaluated exactly once.";
  EXPECT_EQ(1, n3) << "Argument 3 is not evaluated exactly once.";
  EXPECT_EQ(1, n4) << "Argument 4 is not evaluated exactly once.";
}


// Some helper functions for testing using overloaded/template
// functions with ASSERT_PREDn and EXPECT_PREDn.

bool IsPositive(double x) {
  return x > 0;
}

template <typename T>
bool IsNegative(T x) {
  return x < 0;
}

template <typename T1, typename T2>
bool GreaterThan(T1 x1, T2 x2) {
  return x1 > x2;
}

// Tests that overloaded functions can be used in *_PRED* as long as
// their types are explicitly specified.
TEST(PredicateAssertionTest, AcceptsOverloadedFunction) {
  // C++Builder requires C-style casts rather than static_cast.
  EXPECT_PRED1((bool (*)(int))(IsPositive), 5);  // NOLINT
  ASSERT_PRED1((bool (*)(double))(IsPositive), 6.0);  // NOLINT
}

// Tests that template functions can be used in *_PRED* as long as
// their types are explicitly specified.
TEST(PredicateAssertionTest, AcceptsTemplateFunction) {
  EXPECT_PRED1(IsNegative<int>, -5);
  // Makes sure that we can handle templates with more than one
  // parameter.
  ASSERT_PRED2((GreaterThan<int, int>), 5, 0);
}


// Some helper functions for testing using overloaded/template
// functions with ASSERT_PRED_FORMATn and EXPECT_PRED_FORMATn.

AssertionResult IsPositiveFormat(const char* /* expr */, int n) {
  return n > 0 ? AssertionSuccess() :
      AssertionFailure(Message() << "Failure");
}

AssertionResult IsPositiveFormat(const char* /* expr */, double x) {
  return x > 0 ? AssertionSuccess() :
      AssertionFailure(Message() << "Failure");
}

template <typename T>
AssertionResult IsNegativeFormat(const char* /* expr */, T x) {
  return x < 0 ? AssertionSuccess() :
      AssertionFailure(Message() << "Failure");
}

template <typename T1, typename T2>
AssertionResult EqualsFormat(const char* /* expr1 */, const char* /* expr2 */,
                             const T1& x1, const T2& x2) {
  return x1 == x2 ? AssertionSuccess() :
      AssertionFailure(Message() << "Failure");
}

// Tests that overloaded functions can be used in *_PRED_FORMAT*
// without explicitly specifying their types.
TEST(PredicateFormatAssertionTest, AcceptsOverloadedFunction) {
  EXPECT_PRED_FORMAT1(IsPositiveFormat, 5);
  ASSERT_PRED_FORMAT1(IsPositiveFormat, 6.0);
}

// Tests that template functions can be used in *_PRED_FORMAT* without
// explicitly specifying their types.
TEST(PredicateFormatAssertionTest, AcceptsTemplateFunction) {
  EXPECT_PRED_FORMAT1(IsNegativeFormat, -5);
  ASSERT_PRED_FORMAT2(EqualsFormat, 3, 3);
}


// Tests string assertions.

// Tests ASSERT_STREQ with non-NULL arguments.
TEST(StringAssertionTest, ASSERT_STREQ) {
  const char * const p1 = "good";
  ASSERT_STREQ(p1, p1);

  // Let p2 have the same content as p1, but be at a different address.
  const char p2[] = "good";
  ASSERT_STREQ(p1, p2);

  EXPECT_FATAL_FAILURE(ASSERT_STREQ("bad", "good"),
                       "Expected: \"bad\"");
}

// Tests ASSERT_STREQ with NULL arguments.
TEST(StringAssertionTest, ASSERT_STREQ_Null) {
  ASSERT_STREQ(static_cast<const char *>(NULL), NULL);
  EXPECT_FATAL_FAILURE(ASSERT_STREQ(NULL, "non-null"),
                       "non-null");
}

// Tests ASSERT_STREQ with NULL arguments.
TEST(StringAssertionTest, ASSERT_STREQ_Null2) {
  EXPECT_FATAL_FAILURE(ASSERT_STREQ("non-null", NULL),
                       "non-null");
}

// Tests ASSERT_STRNE.
TEST(StringAssertionTest, ASSERT_STRNE) {
  ASSERT_STRNE("hi", "Hi");
  ASSERT_STRNE("Hi", NULL);
  ASSERT_STRNE(NULL, "Hi");
  ASSERT_STRNE("", NULL);
  ASSERT_STRNE(NULL, "");
  ASSERT_STRNE("", "Hi");
  ASSERT_STRNE("Hi", "");
  EXPECT_FATAL_FAILURE(ASSERT_STRNE("Hi", "Hi"),
                       "\"Hi\" vs \"Hi\"");
}

// Tests ASSERT_STRCASEEQ.
TEST(StringAssertionTest, ASSERT_STRCASEEQ) {
  ASSERT_STRCASEEQ("hi", "Hi");
  ASSERT_STRCASEEQ(static_cast<const char *>(NULL), NULL);

  ASSERT_STRCASEEQ("", "");
  EXPECT_FATAL_FAILURE(ASSERT_STRCASEEQ("Hi", "hi2"),
                       "(ignoring case)");
}

// Tests ASSERT_STRCASENE.
TEST(StringAssertionTest, ASSERT_STRCASENE) {
  ASSERT_STRCASENE("hi1", "Hi2");
  ASSERT_STRCASENE("Hi", NULL);
  ASSERT_STRCASENE(NULL, "Hi");
  ASSERT_STRCASENE("", NULL);
  ASSERT_STRCASENE(NULL, "");
  ASSERT_STRCASENE("", "Hi");
  ASSERT_STRCASENE("Hi", "");
  EXPECT_FATAL_FAILURE(ASSERT_STRCASENE("Hi", "hi"),
                       "(ignoring case)");
}

// Tests *_STREQ on wide strings.
TEST(StringAssertionTest, STREQ_Wide) {
  // NULL strings.
  ASSERT_STREQ(static_cast<const wchar_t *>(NULL), NULL);

  // Empty strings.
  ASSERT_STREQ(L"", L"");

  // Non-null vs NULL.
  EXPECT_NONFATAL_FAILURE(EXPECT_STREQ(L"non-null", NULL),
                          "non-null");

  // Equal strings.
  EXPECT_STREQ(L"Hi", L"Hi");

  // Unequal strings.
  EXPECT_NONFATAL_FAILURE(EXPECT_STREQ(L"abc", L"Abc"),
                          "Abc");

  // Strings containing wide characters.
  EXPECT_NONFATAL_FAILURE(EXPECT_STREQ(L"abc\x8119", L"abc\x8120"),
                          "abc");

  // The streaming variation.
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_STREQ(L"abc\x8119", L"abc\x8121") << "Expected failure";
  }, "Expected failure");
}

// Tests *_STRNE on wide strings.
TEST(StringAssertionTest, STRNE_Wide) {
  // NULL strings.
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_STRNE(static_cast<const wchar_t *>(NULL), NULL);
  }, "");

  // Empty strings.
  EXPECT_NONFATAL_FAILURE(EXPECT_STRNE(L"", L""),
                          "L\"\"");

  // Non-null vs NULL.
  ASSERT_STRNE(L"non-null", NULL);

  // Equal strings.
  EXPECT_NONFATAL_FAILURE(EXPECT_STRNE(L"Hi", L"Hi"),
                          "L\"Hi\"");

  // Unequal strings.
  EXPECT_STRNE(L"abc", L"Abc");

  // Strings containing wide characters.
  EXPECT_NONFATAL_FAILURE(EXPECT_STRNE(L"abc\x8119", L"abc\x8119"),
                          "abc");

  // The streaming variation.
  ASSERT_STRNE(L"abc\x8119", L"abc\x8120") << "This shouldn't happen";
}

// Tests for ::testing::IsSubstring().

// Tests that IsSubstring() returns the correct result when the input
// argument type is const char*.
TEST(IsSubstringTest, ReturnsCorrectResultForCString) {
  EXPECT_FALSE(IsSubstring("", "", NULL, "a"));
  EXPECT_FALSE(IsSubstring("", "", "b", NULL));
  EXPECT_FALSE(IsSubstring("", "", "needle", "haystack"));

  EXPECT_TRUE(IsSubstring("", "", static_cast<const char*>(NULL), NULL));
  EXPECT_TRUE(IsSubstring("", "", "needle", "two needles"));
}

// Tests that IsSubstring() returns the correct result when the input
// argument type is const wchar_t*.
TEST(IsSubstringTest, ReturnsCorrectResultForWideCString) {
  EXPECT_FALSE(IsSubstring("", "", kNull, L"a"));
  EXPECT_FALSE(IsSubstring("", "", L"b", kNull));
  EXPECT_FALSE(IsSubstring("", "", L"needle", L"haystack"));

  EXPECT_TRUE(IsSubstring("", "", static_cast<const wchar_t*>(NULL), NULL));
  EXPECT_TRUE(IsSubstring("", "", L"needle", L"two needles"));
}

// Tests that IsSubstring() generates the correct message when the input
// argument type is const char*.
TEST(IsSubstringTest, GeneratesCorrectMessageForCString) {
  EXPECT_STREQ("Value of: needle_expr\n"
               "  Actual: \"needle\"\n"
               "Expected: a substring of haystack_expr\n"
               "Which is: \"haystack\"",
               IsSubstring("needle_expr", "haystack_expr",
                           "needle", "haystack").failure_message());
}

// Tests that IsSubstring returns the correct result when the input
// argument type is ::std::string.
TEST(IsSubstringTest, ReturnsCorrectResultsForStdString) {
  EXPECT_TRUE(IsSubstring("", "", std::string("hello"), "ahellob"));
  EXPECT_FALSE(IsSubstring("", "", "hello", std::string("world")));
}

#if GTEST_HAS_STD_WSTRING
// Tests that IsSubstring returns the correct result when the input
// argument type is ::std::wstring.
TEST(IsSubstringTest, ReturnsCorrectResultForStdWstring) {
  EXPECT_TRUE(IsSubstring("", "", ::std::wstring(L"needle"), L"two needles"));
  EXPECT_FALSE(IsSubstring("", "", L"needle", ::std::wstring(L"haystack")));
}

// Tests that IsSubstring() generates the correct message when the input
// argument type is ::std::wstring.
TEST(IsSubstringTest, GeneratesCorrectMessageForWstring) {
  EXPECT_STREQ("Value of: needle_expr\n"
               "  Actual: L\"needle\"\n"
               "Expected: a substring of haystack_expr\n"
               "Which is: L\"haystack\"",
               IsSubstring(
                   "needle_expr", "haystack_expr",
                   ::std::wstring(L"needle"), L"haystack").failure_message());
}

#endif  // GTEST_HAS_STD_WSTRING

// Tests for ::testing::IsNotSubstring().

// Tests that IsNotSubstring() returns the correct result when the input
// argument type is const char*.
TEST(IsNotSubstringTest, ReturnsCorrectResultForCString) {
  EXPECT_TRUE(IsNotSubstring("", "", "needle", "haystack"));
  EXPECT_FALSE(IsNotSubstring("", "", "needle", "two needles"));
}

// Tests that IsNotSubstring() returns the correct result when the input
// argument type is const wchar_t*.
TEST(IsNotSubstringTest, ReturnsCorrectResultForWideCString) {
  EXPECT_TRUE(IsNotSubstring("", "", L"needle", L"haystack"));
  EXPECT_FALSE(IsNotSubstring("", "", L"needle", L"two needles"));
}

// Tests that IsNotSubstring() generates the correct message when the input
// argument type is const wchar_t*.
TEST(IsNotSubstringTest, GeneratesCorrectMessageForWideCString) {
  EXPECT_STREQ("Value of: needle_expr\n"
               "  Actual: L\"needle\"\n"
               "Expected: not a substring of haystack_expr\n"
               "Which is: L\"two needles\"",
               IsNotSubstring(
                   "needle_expr", "haystack_expr",
                   L"needle", L"two needles").failure_message());
}

// Tests that IsNotSubstring returns the correct result when the input
// argument type is ::std::string.
TEST(IsNotSubstringTest, ReturnsCorrectResultsForStdString) {
  EXPECT_FALSE(IsNotSubstring("", "", std::string("hello"), "ahellob"));
  EXPECT_TRUE(IsNotSubstring("", "", "hello", std::string("world")));
}

// Tests that IsNotSubstring() generates the correct message when the input
// argument type is ::std::string.
TEST(IsNotSubstringTest, GeneratesCorrectMessageForStdString) {
  EXPECT_STREQ("Value of: needle_expr\n"
               "  Actual: \"needle\"\n"
               "Expected: not a substring of haystack_expr\n"
               "Which is: \"two needles\"",
               IsNotSubstring(
                   "needle_expr", "haystack_expr",
                   ::std::string("needle"), "two needles").failure_message());
}

#if GTEST_HAS_STD_WSTRING

// Tests that IsNotSubstring returns the correct result when the input
// argument type is ::std::wstring.
TEST(IsNotSubstringTest, ReturnsCorrectResultForStdWstring) {
  EXPECT_FALSE(
      IsNotSubstring("", "", ::std::wstring(L"needle"), L"two needles"));
  EXPECT_TRUE(IsNotSubstring("", "", L"needle", ::std::wstring(L"haystack")));
}

#endif  // GTEST_HAS_STD_WSTRING

// Tests floating-point assertions.

template <typename RawType>
class FloatingPointTest : public Test {
 protected:
  // Pre-calculated numbers to be used by the tests.
  struct TestValues {
    RawType close_to_positive_zero;
    RawType close_to_negative_zero;
    RawType further_from_negative_zero;

    RawType close_to_one;
    RawType further_from_one;

    RawType infinity;
    RawType close_to_infinity;
    RawType further_from_infinity;

    RawType nan1;
    RawType nan2;
  };

  typedef typename testing::internal::FloatingPoint<RawType> Floating;
  typedef typename Floating::Bits Bits;

  virtual void SetUp() {
    const size_t max_ulps = Floating::kMaxUlps;

    // The bits that represent 0.0.
    const Bits zero_bits = Floating(0).bits();

    // Makes some numbers close to 0.0.
    values_.close_to_positive_zero = Floating::ReinterpretBits(
        zero_bits + max_ulps/2);
    values_.close_to_negative_zero = -Floating::ReinterpretBits(
        zero_bits + max_ulps - max_ulps/2);
    values_.further_from_negative_zero = -Floating::ReinterpretBits(
        zero_bits + max_ulps + 1 - max_ulps/2);

    // The bits that represent 1.0.
    const Bits one_bits = Floating(1).bits();

    // Makes some numbers close to 1.0.
    values_.close_to_one = Floating::ReinterpretBits(one_bits + max_ulps);
    values_.further_from_one = Floating::ReinterpretBits(
        one_bits + max_ulps + 1);

    // +infinity.
    values_.infinity = Floating::Infinity();

    // The bits that represent +infinity.
    const Bits infinity_bits = Floating(values_.infinity).bits();

    // Makes some numbers close to infinity.
    values_.close_to_infinity = Floating::ReinterpretBits(
        infinity_bits - max_ulps);
    values_.further_from_infinity = Floating::ReinterpretBits(
        infinity_bits - max_ulps - 1);

    // Makes some NAN's.  Sets the most significant bit of the fraction so that
    // our NaN's are quiet; trying to process a signaling NaN would raise an
    // exception if our environment enables floating point exceptions.
    values_.nan1 = Floating::ReinterpretBits(Floating::kExponentBitMask
        | (static_cast<Bits>(1) << (Floating::kFractionBitCount - 1)) | 1);
    values_.nan2 = Floating::ReinterpretBits(Floating::kExponentBitMask
        | (static_cast<Bits>(1) << (Floating::kFractionBitCount - 1)) | 200);
  }

  void TestSize() {
    EXPECT_EQ(sizeof(RawType), sizeof(Bits));
  }

  static TestValues values_;
};

template <typename RawType>
typename FloatingPointTest<RawType>::TestValues
    FloatingPointTest<RawType>::values_;

// Instantiates FloatingPointTest for testing *_FLOAT_EQ.
typedef FloatingPointTest<float> FloatTest;

// Tests that the size of Float::Bits matches the size of float.
TEST_F(FloatTest, Size) {
  TestSize();
}

// Tests comparing with +0 and -0.
TEST_F(FloatTest, Zeros) {
  EXPECT_FLOAT_EQ(0.0, -0.0);
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(-0.0, 1.0),
                          "1.0");
  EXPECT_FATAL_FAILURE(ASSERT_FLOAT_EQ(0.0, 1.5),
                       "1.5");
}

// Tests comparing numbers close to 0.
//
// This ensures that *_FLOAT_EQ handles the sign correctly and no
// overflow occurs when comparing numbers whose absolute value is very
// small.
TEST_F(FloatTest, AlmostZeros) {
  // In C++Builder, names within local classes (such as used by
  // EXPECT_FATAL_FAILURE) cannot be resolved against static members of the
  // scoping class.  Use a static local alias as a workaround.
  // We use the assignment syntax since some compilers, like Sun Studio,
  // don't allow initializing references using construction syntax
  // (parentheses).
  static const FloatTest::TestValues& v = this->values_;

  EXPECT_FLOAT_EQ(0.0, v.close_to_positive_zero);
  EXPECT_FLOAT_EQ(-0.0, v.close_to_negative_zero);
  EXPECT_FLOAT_EQ(v.close_to_positive_zero, v.close_to_negative_zero);

  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_FLOAT_EQ(v.close_to_positive_zero,
                    v.further_from_negative_zero);
  }, "v.further_from_negative_zero");
}

// Tests comparing numbers close to each other.
TEST_F(FloatTest, SmallDiff) {
  EXPECT_FLOAT_EQ(1.0, values_.close_to_one);
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(1.0, values_.further_from_one),
                          "values_.further_from_one");
}

// Tests comparing numbers far apart.
TEST_F(FloatTest, LargeDiff) {
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(2.5, 3.0),
                          "3.0");
}

// Tests comparing with infinity.
//
// This ensures that no overflow occurs when comparing numbers whose
// absolute value is very large.
TEST_F(FloatTest, Infinity) {
  EXPECT_FLOAT_EQ(values_.infinity, values_.close_to_infinity);
  EXPECT_FLOAT_EQ(-values_.infinity, -values_.close_to_infinity);
#if !GTEST_OS_SYMBIAN
  // Nokia's STLport crashes if we try to output infinity or NaN.
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(values_.infinity, -values_.infinity),
                          "-values_.infinity");

  // This is interesting as the representations of infinity and nan1
  // are only 1 DLP apart.
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(values_.infinity, values_.nan1),
                          "values_.nan1");
#endif  // !GTEST_OS_SYMBIAN
}

// Tests that comparing with NAN always returns false.
TEST_F(FloatTest, NaN) {
#if !GTEST_OS_SYMBIAN
// Nokia's STLport crashes if we try to output infinity or NaN.

  // In C++Builder, names within local classes (such as used by
  // EXPECT_FATAL_FAILURE) cannot be resolved against static members of the
  // scoping class.  Use a static local alias as a workaround.
  // We use the assignment syntax since some compilers, like Sun Studio,
  // don't allow initializing references using construction syntax
  // (parentheses).
  static const FloatTest::TestValues& v = this->values_;

  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(v.nan1, v.nan1),
                          "v.nan1");
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(v.nan1, v.nan2),
                          "v.nan2");
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(1.0, v.nan1),
                          "v.nan1");

  EXPECT_FATAL_FAILURE(ASSERT_FLOAT_EQ(v.nan1, v.infinity),
                       "v.infinity");
#endif  // !GTEST_OS_SYMBIAN
}

// Tests that *_FLOAT_EQ are reflexive.
TEST_F(FloatTest, Reflexive) {
  EXPECT_FLOAT_EQ(0.0, 0.0);
  EXPECT_FLOAT_EQ(1.0, 1.0);
  ASSERT_FLOAT_EQ(values_.infinity, values_.infinity);
}

// Tests that *_FLOAT_EQ are commutative.
TEST_F(FloatTest, Commutative) {
  // We already tested EXPECT_FLOAT_EQ(1.0, values_.close_to_one).
  EXPECT_FLOAT_EQ(values_.close_to_one, 1.0);

  // We already tested EXPECT_FLOAT_EQ(1.0, values_.further_from_one).
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(values_.further_from_one, 1.0),
                          "1.0");
}

// Tests EXPECT_NEAR.
TEST_F(FloatTest, EXPECT_NEAR) {
  EXPECT_NEAR(-1.0f, -1.1f, 0.2f);
  EXPECT_NEAR(2.0f, 3.0f, 1.0f);
  EXPECT_NONFATAL_FAILURE(EXPECT_NEAR(1.0f,1.5f, 0.25f),  // NOLINT
                          "The difference between 1.0f and 1.5f is 0.5, "
                          "which exceeds 0.25f");
  // To work around a bug in gcc 2.95.0, there is intentionally no
  // space after the first comma in the previous line.
}

// Tests ASSERT_NEAR.
TEST_F(FloatTest, ASSERT_NEAR) {
  ASSERT_NEAR(-1.0f, -1.1f, 0.2f);
  ASSERT_NEAR(2.0f, 3.0f, 1.0f);
  EXPECT_FATAL_FAILURE(ASSERT_NEAR(1.0f,1.5f, 0.25f),  // NOLINT
                       "The difference between 1.0f and 1.5f is 0.5, "
                       "which exceeds 0.25f");
  // To work around a bug in gcc 2.95.0, there is intentionally no
  // space after the first comma in the previous line.
}

// Tests the cases where FloatLE() should succeed.
TEST_F(FloatTest, FloatLESucceeds) {
  EXPECT_PRED_FORMAT2(FloatLE, 1.0f, 2.0f);  // When val1 < val2,
  ASSERT_PRED_FORMAT2(FloatLE, 1.0f, 1.0f);  // val1 == val2,

  // or when val1 is greater than, but almost equals to, val2.
  EXPECT_PRED_FORMAT2(FloatLE, values_.close_to_positive_zero, 0.0f);
}

// Tests the cases where FloatLE() should fail.
TEST_F(FloatTest, FloatLEFails) {
  // When val1 is greater than val2 by a large margin,
  EXPECT_NONFATAL_FAILURE(EXPECT_PRED_FORMAT2(FloatLE, 2.0f, 1.0f),
                          "(2.0f) <= (1.0f)");

  // or by a small yet non-negligible margin,
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED_FORMAT2(FloatLE, values_.further_from_one, 1.0f);
  }, "(values_.further_from_one) <= (1.0f)");

#if !GTEST_OS_SYMBIAN && !defined(__BORLANDC__)
  // Nokia's STLport crashes if we try to output infinity or NaN.
  // C++Builder gives bad results for ordered comparisons involving NaNs
  // due to compiler bugs.
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED_FORMAT2(FloatLE, values_.nan1, values_.infinity);
  }, "(values_.nan1) <= (values_.infinity)");
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED_FORMAT2(FloatLE, -values_.infinity, values_.nan1);
  }, "(-values_.infinity) <= (values_.nan1)");
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_PRED_FORMAT2(FloatLE, values_.nan1, values_.nan1);
  }, "(values_.nan1) <= (values_.nan1)");
#endif  // !GTEST_OS_SYMBIAN && !defined(__BORLANDC__)
}

// Instantiates FloatingPointTest for testing *_DOUBLE_EQ.
typedef FloatingPointTest<double> DoubleTest;

// Tests that the size of Double::Bits matches the size of double.
TEST_F(DoubleTest, Size) {
  TestSize();
}

// Tests comparing with +0 and -0.
TEST_F(DoubleTest, Zeros) {
  EXPECT_DOUBLE_EQ(0.0, -0.0);
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(-0.0, 1.0),
                          "1.0");
  EXPECT_FATAL_FAILURE(ASSERT_DOUBLE_EQ(0.0, 1.0),
                       "1.0");
}

// Tests comparing numbers close to 0.
//
// This ensures that *_DOUBLE_EQ handles the sign correctly and no
// overflow occurs when comparing numbers whose absolute value is very
// small.
TEST_F(DoubleTest, AlmostZeros) {
  // In C++Builder, names within local classes (such as used by
  // EXPECT_FATAL_FAILURE) cannot be resolved against static members of the
  // scoping class.  Use a static local alias as a workaround.
  // We use the assignment syntax since some compilers, like Sun Studio,
  // don't allow initializing references using construction syntax
  // (parentheses).
  static const DoubleTest::TestValues& v = this->values_;

  EXPECT_DOUBLE_EQ(0.0, v.close_to_positive_zero);
  EXPECT_DOUBLE_EQ(-0.0, v.close_to_negative_zero);
  EXPECT_DOUBLE_EQ(v.close_to_positive_zero, v.close_to_negative_zero);

  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_DOUBLE_EQ(v.close_to_positive_zero,
                     v.further_from_negative_zero);
  }, "v.further_from_negative_zero");
}

// Tests comparing numbers close to each other.
TEST_F(DoubleTest, SmallDiff) {
  EXPECT_DOUBLE_EQ(1.0, values_.close_to_one);
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(1.0, values_.further_from_one),
                          "values_.further_from_one");
}

// Tests comparing numbers far apart.
TEST_F(DoubleTest, LargeDiff) {
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(2.0, 3.0),
                          "3.0");
}

// Tests comparing with infinity.
//
// This ensures that no overflow occurs when comparing numbers whose
// absolute value is very large.
TEST_F(DoubleTest, Infinity) {
  EXPECT_DOUBLE_EQ(values_.infinity, values_.close_to_infinity);
  EXPECT_DOUBLE_EQ(-values_.infinity, -values_.close_to_infinity);
#if !GTEST_OS_SYMBIAN
  // Nokia's STLport crashes if we try to output infinity or NaN.
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(values_.infinity, -values_.infinity),
                          "-values_.infinity");

  // This is interesting as the representations of infinity_ and nan1_
  // are only 1 DLP apart.
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(values_.infinity, values_.nan1),
                          "values_.nan1");
#endif  // !GTEST_OS_SYMBIAN
}

// Tests that comparing with NAN always returns false.
TEST_F(DoubleTest, NaN) {
#if !GTEST_OS_SYMBIAN
  // In C++Builder, names within local classes (such as used by
  // EXPECT_FATAL_FAILURE) cannot be resolved against static members of the
  // scoping class.  Use a static local alias as a workaround.
  // We use the assignment syntax since some compilers, like Sun Studio,
  // don't allow initializing references using construction syntax
  // (parentheses).
  static const DoubleTest::TestValues& v = this->values_;

  // Nokia's STLport crashes if we try to output infinity or NaN.
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(v.nan1, v.nan1),
                          "v.nan1");
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(v.nan1, v.nan2), "v.nan2");
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(1.0, v.nan1), "v.nan1");
  EXPECT_FATAL_FAILURE(ASSERT_DOUBLE_EQ(v.nan1, v.infinity),
                       "v.infinity");
#endif  // !GTEST_OS_SYMBIAN
}

// Tests that *_DOUBLE_EQ are reflexive.
TEST_F(DoubleTest, Reflexive) {
  EXPECT_DOUBLE_EQ(0.0, 0.0);
  EXPECT_DOUBLE_EQ(1.0, 1.0);
#if !GTEST_OS_SYMBIAN
  // Nokia's STLport crashes if we try to output infinity or NaN.
  ASSERT_DOUBLE_EQ(values_.infinity, values_.infinity);
#endif  // !GTEST_OS_SYMBIAN
}

// Tests that *_DOUBLE_EQ are commutative.
TEST_F(DoubleTest, Commutative) {
  // We already tested EXPECT_DOUBLE_EQ(1.0, values_.close_to_one).
  EXPECT_DOUBLE_EQ(values_.close_to_one, 1.0);

  // We already tested EXPECT_DOUBLE_EQ(1.0, values_.further_from_one).
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(values_.further_from_one, 1.0),
                          "1.0");
}

// Tests EXPECT_NEAR.
TEST_F(DoubleTest, EXPECT_NEAR) {
  EXPECT_NEAR(-1.0, -1.1, 0.2);
  EXPECT_NEAR(2.0, 3.0, 1.0);
  EXPECT_NONFATAL_FAILURE(EXPECT_NEAR(1.0, 1.5, 0.25),  // NOLINT
                          "The difference between 1.0 and 1.5 is 0.5, "
                          "which exceeds 0.25");
  // To work around a bug in gcc 2.95.0, there is intentionally no
  // space after the first comma in the previous statement.
}

// Tests ASSERT_NEAR.
TEST_F(DoubleTest, ASSERT_NEAR) {
  ASSERT_NEAR(-1.0, -1.1, 0.2);
  ASSERT_NEAR(2.0, 3.0, 1.0);
  EXPECT_FATAL_FAILURE(ASSERT_NEAR(1.0, 1.5, 0.25),  // NOLINT
                       "The difference between 1.0 and 1.5 is 0.5, "
                       "which exceeds 0.25");
  // To work around a bug in gcc 2.95.0, there is intentionally no
  // space after the first comma in the previous statement.
}

// Tests the cases where DoubleLE() should succeed.
TEST_F(DoubleTest, DoubleLESucceeds) {
  EXPECT_PRED_FORMAT2(DoubleLE, 1.0, 2.0);  // When val1 < val2,
  ASSERT_PRED_FORMAT2(DoubleLE, 1.0, 1.0);  // val1 == val2,

  // or when val1 is greater than, but almost equals to, val2.
  EXPECT_PRED_FORMAT2(DoubleLE, values_.close_to_positive_zero, 0.0);
}

// Tests the cases where DoubleLE() should fail.
TEST_F(DoubleTest, DoubleLEFails) {
  // When val1 is greater than val2 by a large margin,
  EXPECT_NONFATAL_FAILURE(EXPECT_PRED_FORMAT2(DoubleLE, 2.0, 1.0),
                          "(2.0) <= (1.0)");

  // or by a small yet non-negligible margin,
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED_FORMAT2(DoubleLE, values_.further_from_one, 1.0);
  }, "(values_.further_from_one) <= (1.0)");

#if !GTEST_OS_SYMBIAN && !defined(__BORLANDC__)
  // Nokia's STLport crashes if we try to output infinity or NaN.
  // C++Builder gives bad results for ordered comparisons involving NaNs
  // due to compiler bugs.
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED_FORMAT2(DoubleLE, values_.nan1, values_.infinity);
  }, "(values_.nan1) <= (values_.infinity)");
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_PRED_FORMAT2(DoubleLE, -values_.infinity, values_.nan1);
  }, " (-values_.infinity) <= (values_.nan1)");
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_PRED_FORMAT2(DoubleLE, values_.nan1, values_.nan1);
  }, "(values_.nan1) <= (values_.nan1)");
#endif  // !GTEST_OS_SYMBIAN && !defined(__BORLANDC__)
}


// Verifies that a test or test case whose name starts with DISABLED_ is
// not run.

// A test whose name starts with DISABLED_.
// Should not run.
TEST(DisabledTest, DISABLED_TestShouldNotRun) {
  FAIL() << "Unexpected failure: Disabled test should not be run.";
}

// A test whose name does not start with DISABLED_.
// Should run.
TEST(DisabledTest, NotDISABLED_TestShouldRun) {
  EXPECT_EQ(1, 1);
}

// A test case whose name starts with DISABLED_.
// Should not run.
TEST(DISABLED_TestCase, TestShouldNotRun) {
  FAIL() << "Unexpected failure: Test in disabled test case should not be run.";
}

// A test case and test whose names start with DISABLED_.
// Should not run.
TEST(DISABLED_TestCase, DISABLED_TestShouldNotRun) {
  FAIL() << "Unexpected failure: Test in disabled test case should not be run.";
}

// Check that when all tests in a test case are disabled, SetupTestCase() and
// TearDownTestCase() are not called.
class DisabledTestsTest : public Test {
 protected:
  static void SetUpTestCase() {
    FAIL() << "Unexpected failure: All tests disabled in test case. "
              "SetupTestCase() should not be called.";
  }

  static void TearDownTestCase() {
    FAIL() << "Unexpected failure: All tests disabled in test case. "
              "TearDownTestCase() should not be called.";
  }
};

TEST_F(DisabledTestsTest, DISABLED_TestShouldNotRun_1) {
  FAIL() << "Unexpected failure: Disabled test should not be run.";
}

TEST_F(DisabledTestsTest, DISABLED_TestShouldNotRun_2) {
  FAIL() << "Unexpected failure: Disabled test should not be run.";
}

// Tests that disabled typed tests aren't run.

#if GTEST_HAS_TYPED_TEST

template <typename T>
class TypedTest : public Test {
};

typedef testing::Types<int, double> NumericTypes;
TYPED_TEST_CASE(TypedTest, NumericTypes);

TYPED_TEST(TypedTest, DISABLED_ShouldNotRun) {
  FAIL() << "Unexpected failure: Disabled typed test should not run.";
}

template <typename T>
class DISABLED_TypedTest : public Test {
};

TYPED_TEST_CASE(DISABLED_TypedTest, NumericTypes);

TYPED_TEST(DISABLED_TypedTest, ShouldNotRun) {
  FAIL() << "Unexpected failure: Disabled typed test should not run.";
}

#endif  // GTEST_HAS_TYPED_TEST

// Tests that disabled type-parameterized tests aren't run.

#if GTEST_HAS_TYPED_TEST_P

template <typename T>
class TypedTestP : public Test {
};

TYPED_TEST_CASE_P(TypedTestP);

TYPED_TEST_P(TypedTestP, DISABLED_ShouldNotRun) {
  FAIL() << "Unexpected failure: "
         << "Disabled type-parameterized test should not run.";
}

REGISTER_TYPED_TEST_CASE_P(TypedTestP, DISABLED_ShouldNotRun);

INSTANTIATE_TYPED_TEST_CASE_P(My, TypedTestP, NumericTypes);

template <typename T>
class DISABLED_TypedTestP : public Test {
};

TYPED_TEST_CASE_P(DISABLED_TypedTestP);

TYPED_TEST_P(DISABLED_TypedTestP, ShouldNotRun) {
  FAIL() << "Unexpected failure: "
         << "Disabled type-parameterized test should not run.";
}

REGISTER_TYPED_TEST_CASE_P(DISABLED_TypedTestP, ShouldNotRun);

INSTANTIATE_TYPED_TEST_CASE_P(My, DISABLED_TypedTestP, NumericTypes);

#endif  // GTEST_HAS_TYPED_TEST_P

// Tests that assertion macros evaluate their arguments exactly once.

class SingleEvaluationTest : public Test {
 public:  // Must be public and not protected due to a bug in g++ 3.4.2.
  // This helper function is needed by the FailedASSERT_STREQ test
  // below.  It's public to work around C++Builder's bug with scoping local
  // classes.
  static void CompareAndIncrementCharPtrs() {
    ASSERT_STREQ(p1_++, p2_++);
  }

  // This helper function is needed by the FailedASSERT_NE test below.  It's
  // public to work around C++Builder's bug with scoping local classes.
  static void CompareAndIncrementInts() {
    ASSERT_NE(a_++, b_++);
  }

 protected:
  SingleEvaluationTest() {
    p1_ = s1_;
    p2_ = s2_;
    a_ = 0;
    b_ = 0;
  }

  static const char* const s1_;
  static const char* const s2_;
  static const char* p1_;
  static const char* p2_;

  static int a_;
  static int b_;
};

const char* const SingleEvaluationTest::s1_ = "01234";
const char* const SingleEvaluationTest::s2_ = "abcde";
const char* SingleEvaluationTest::p1_;
const char* SingleEvaluationTest::p2_;
int SingleEvaluationTest::a_;
int SingleEvaluationTest::b_;

// Tests that when ASSERT_STREQ fails, it evaluates its arguments
// exactly once.
TEST_F(SingleEvaluationTest, FailedASSERT_STREQ) {
  EXPECT_FATAL_FAILURE(SingleEvaluationTest::CompareAndIncrementCharPtrs(),
                       "p2_++");
  EXPECT_EQ(s1_ + 1, p1_);
  EXPECT_EQ(s2_ + 1, p2_);
}

// Tests that string assertion arguments are evaluated exactly once.
TEST_F(SingleEvaluationTest, ASSERT_STR) {
  // successful EXPECT_STRNE
  EXPECT_STRNE(p1_++, p2_++);
  EXPECT_EQ(s1_ + 1, p1_);
  EXPECT_EQ(s2_ + 1, p2_);

  // failed EXPECT_STRCASEEQ
  EXPECT_NONFATAL_FAILURE(EXPECT_STRCASEEQ(p1_++, p2_++),
                          "ignoring case");
  EXPECT_EQ(s1_ + 2, p1_);
  EXPECT_EQ(s2_ + 2, p2_);
}

// Tests that when ASSERT_NE fails, it evaluates its arguments exactly
// once.
TEST_F(SingleEvaluationTest, FailedASSERT_NE) {
  EXPECT_FATAL_FAILURE(SingleEvaluationTest::CompareAndIncrementInts(),
                       "(a_++) != (b_++)");
  EXPECT_EQ(1, a_);
  EXPECT_EQ(1, b_);
}

// Tests that assertion arguments are evaluated exactly once.
TEST_F(SingleEvaluationTest, OtherCases) {
  // successful EXPECT_TRUE
  EXPECT_TRUE(0 == a_++);  // NOLINT
  EXPECT_EQ(1, a_);

  // failed EXPECT_TRUE
  EXPECT_NONFATAL_FAILURE(EXPECT_TRUE(-1 == a_++), "-1 == a_++");
  EXPECT_EQ(2, a_);

  // successful EXPECT_GT
  EXPECT_GT(a_++, b_++);
  EXPECT_EQ(3, a_);
  EXPECT_EQ(1, b_);

  // failed EXPECT_LT
  EXPECT_NONFATAL_FAILURE(EXPECT_LT(a_++, b_++), "(a_++) < (b_++)");
  EXPECT_EQ(4, a_);
  EXPECT_EQ(2, b_);

  // successful ASSERT_TRUE
  ASSERT_TRUE(0 < a_++);  // NOLINT
  EXPECT_EQ(5, a_);

  // successful ASSERT_GT
  ASSERT_GT(a_++, b_++);
  EXPECT_EQ(6, a_);
  EXPECT_EQ(3, b_);
}

#if GTEST_HAS_EXCEPTIONS

void ThrowAnInteger() {
  throw 1;
}

// Tests that assertion arguments are evaluated exactly once.
TEST_F(SingleEvaluationTest, ExceptionTests) {
  // successful EXPECT_THROW
  EXPECT_THROW({  // NOLINT
    a_++;
    ThrowAnInteger();
  }, int);
  EXPECT_EQ(1, a_);

  // failed EXPECT_THROW, throws different
  EXPECT_NONFATAL_FAILURE(EXPECT_THROW({  // NOLINT
    a_++;
    ThrowAnInteger();
  }, bool), "throws a different type");
  EXPECT_EQ(2, a_);

  // failed EXPECT_THROW, throws nothing
  EXPECT_NONFATAL_FAILURE(EXPECT_THROW(a_++, bool), "throws nothing");
  EXPECT_EQ(3, a_);

  // successful EXPECT_NO_THROW
  EXPECT_NO_THROW(a_++);
  EXPECT_EQ(4, a_);

  // failed EXPECT_NO_THROW
  EXPECT_NONFATAL_FAILURE(EXPECT_NO_THROW({  // NOLINT
    a_++;
    ThrowAnInteger();
  }), "it throws");
  EXPECT_EQ(5, a_);

  // successful EXPECT_ANY_THROW
  EXPECT_ANY_THROW({  // NOLINT
    a_++;
    ThrowAnInteger();
  });
  EXPECT_EQ(6, a_);

  // failed EXPECT_ANY_THROW
  EXPECT_NONFATAL_FAILURE(EXPECT_ANY_THROW(a_++), "it doesn't");
  EXPECT_EQ(7, a_);
}

#endif  // GTEST_HAS_EXCEPTIONS

// Tests {ASSERT|EXPECT}_NO_FATAL_FAILURE.
class NoFatalFailureTest : public Test {
 protected:
  void Succeeds() {}
  void FailsNonFatal() {
    ADD_FAILURE() << "some non-fatal failure";
  }
  void Fails() {
    FAIL() << "some fatal failure";
  }

  void DoAssertNoFatalFailureOnFails() {
    ASSERT_NO_FATAL_FAILURE(Fails());
    ADD_FAILURE() << "shold not reach here.";
  }

  void DoExpectNoFatalFailureOnFails() {
    EXPECT_NO_FATAL_FAILURE(Fails());
    ADD_FAILURE() << "other failure";
  }
};

TEST_F(NoFatalFailureTest, NoFailure) {
  EXPECT_NO_FATAL_FAILURE(Succeeds());
  ASSERT_NO_FATAL_FAILURE(Succeeds());
}

TEST_F(NoFatalFailureTest, NonFatalIsNoFailure) {
  EXPECT_NONFATAL_FAILURE(
      EXPECT_NO_FATAL_FAILURE(FailsNonFatal()),
      "some non-fatal failure");
  EXPECT_NONFATAL_FAILURE(
      ASSERT_NO_FATAL_FAILURE(FailsNonFatal()),
      "some non-fatal failure");
}

TEST_F(NoFatalFailureTest, AssertNoFatalFailureOnFatalFailure) {
  TestPartResultArray gtest_failures;
  {
    ScopedFakeTestPartResultReporter gtest_reporter(&gtest_failures);
    DoAssertNoFatalFailureOnFails();
  }
  ASSERT_EQ(2, gtest_failures.size());
  EXPECT_EQ(TestPartResult::kFatalFailure,
            gtest_failures.GetTestPartResult(0).type());
  EXPECT_EQ(TestPartResult::kFatalFailure,
            gtest_failures.GetTestPartResult(1).type());
  EXPECT_PRED_FORMAT2(testing::IsSubstring, "some fatal failure",
                      gtest_failures.GetTestPartResult(0).message());
  EXPECT_PRED_FORMAT2(testing::IsSubstring, "it does",
                      gtest_failures.GetTestPartResult(1).message());
}

TEST_F(NoFatalFailureTest, ExpectNoFatalFailureOnFatalFailure) {
  TestPartResultArray gtest_failures;
  {
    ScopedFakeTestPartResultReporter gtest_reporter(&gtest_failures);
    DoExpectNoFatalFailureOnFails();
  }
  ASSERT_EQ(3, gtest_failures.size());
  EXPECT_EQ(TestPartResult::kFatalFailure,
            gtest_failures.GetTestPartResult(0).type());
  EXPECT_EQ(TestPartResult::kNonFatalFailure,
            gtest_failures.GetTestPartResult(1).type());
  EXPECT_EQ(TestPartResult::kNonFatalFailure,
            gtest_failures.GetTestPartResult(2).type());
  EXPECT_PRED_FORMAT2(testing::IsSubstring, "some fatal failure",
                      gtest_failures.GetTestPartResult(0).message());
  EXPECT_PRED_FORMAT2(testing::IsSubstring, "it does",
                      gtest_failures.GetTestPartResult(1).message());
  EXPECT_PRED_FORMAT2(testing::IsSubstring, "other failure",
                      gtest_failures.GetTestPartResult(2).message());
}

TEST_F(NoFatalFailureTest, MessageIsStreamable) {
  TestPartResultArray gtest_failures;
  {
    ScopedFakeTestPartResultReporter gtest_reporter(&gtest_failures);
    EXPECT_NO_FATAL_FAILURE(FAIL() << "foo") << "my message";
  }
  ASSERT_EQ(2, gtest_failures.size());
  EXPECT_EQ(TestPartResult::kNonFatalFailure,
            gtest_failures.GetTestPartResult(0).type());
  EXPECT_EQ(TestPartResult::kNonFatalFailure,
            gtest_failures.GetTestPartResult(1).type());
  EXPECT_PRED_FORMAT2(testing::IsSubstring, "foo",
                      gtest_failures.GetTestPartResult(0).message());
  EXPECT_PRED_FORMAT2(testing::IsSubstring, "my message",
                      gtest_failures.GetTestPartResult(1).message());
}

// Tests non-string assertions.

// Tests EqFailure(), used for implementing *EQ* assertions.
TEST(AssertionTest, EqFailure) {
  const String foo_val("5"), bar_val("6");
  const String msg1(
      EqFailure("foo", "bar", foo_val, bar_val, false)
      .failure_message());
  EXPECT_STREQ(
      "Value of: bar\n"
      "  Actual: 6\n"
      "Expected: foo\n"
      "Which is: 5",
      msg1.c_str());

  const String msg2(
      EqFailure("foo", "6", foo_val, bar_val, false)
      .failure_message());
  EXPECT_STREQ(
      "Value of: 6\n"
      "Expected: foo\n"
      "Which is: 5",
      msg2.c_str());

  const String msg3(
      EqFailure("5", "bar", foo_val, bar_val, false)
      .failure_message());
  EXPECT_STREQ(
      "Value of: bar\n"
      "  Actual: 6\n"
      "Expected: 5",
      msg3.c_str());

  const String msg4(
      EqFailure("5", "6", foo_val, bar_val, false).failure_message());
  EXPECT_STREQ(
      "Value of: 6\n"
      "Expected: 5",
      msg4.c_str());

  const String msg5(
      EqFailure("foo", "bar",
                String("\"x\""), String("\"y\""),
                true).failure_message());
  EXPECT_STREQ(
      "Value of: bar\n"
      "  Actual: \"y\"\n"
      "Expected: foo (ignoring case)\n"
      "Which is: \"x\"",
      msg5.c_str());
}

// Tests AppendUserMessage(), used for implementing the *EQ* macros.
TEST(AssertionTest, AppendUserMessage) {
  const String foo("foo");

  Message msg;
  EXPECT_STREQ("foo",
               AppendUserMessage(foo, msg).c_str());

  msg << "bar";
  EXPECT_STREQ("foo\nbar",
               AppendUserMessage(foo, msg).c_str());
}

#ifdef __BORLANDC__
// Silences warnings: "Condition is always true", "Unreachable code"
# pragma option push -w-ccc -w-rch
#endif

// Tests ASSERT_TRUE.
TEST(AssertionTest, ASSERT_TRUE) {
  ASSERT_TRUE(2 > 1);  // NOLINT
  EXPECT_FATAL_FAILURE(ASSERT_TRUE(2 < 1),
                       "2 < 1");
}

// Tests ASSERT_TRUE(predicate) for predicates returning AssertionResult.
TEST(AssertionTest, AssertTrueWithAssertionResult) {
  ASSERT_TRUE(ResultIsEven(2));
#ifndef __BORLANDC__
  // ICE's in C++Builder.
  EXPECT_FATAL_FAILURE(ASSERT_TRUE(ResultIsEven(3)),
                       "Value of: ResultIsEven(3)\n"
                       "  Actual: false (3 is odd)\n"
                       "Expected: true");
#endif
  ASSERT_TRUE(ResultIsEvenNoExplanation(2));
  EXPECT_FATAL_FAILURE(ASSERT_TRUE(ResultIsEvenNoExplanation(3)),
                       "Value of: ResultIsEvenNoExplanation(3)\n"
                       "  Actual: false (3 is odd)\n"
                       "Expected: true");
}

// Tests ASSERT_FALSE.
TEST(AssertionTest, ASSERT_FALSE) {
  ASSERT_FALSE(2 < 1);  // NOLINT
  EXPECT_FATAL_FAILURE(ASSERT_FALSE(2 > 1),
                       "Value of: 2 > 1\n"
                       "  Actual: true\n"
                       "Expected: false");
}

// Tests ASSERT_FALSE(predicate) for predicates returning AssertionResult.
TEST(AssertionTest, AssertFalseWithAssertionResult) {
  ASSERT_FALSE(ResultIsEven(3));
#ifndef __BORLANDC__
  // ICE's in C++Builder.
  EXPECT_FATAL_FAILURE(ASSERT_FALSE(ResultIsEven(2)),
                       "Value of: ResultIsEven(2)\n"
                       "  Actual: true (2 is even)\n"
                       "Expected: false");
#endif
  ASSERT_FALSE(ResultIsEvenNoExplanation(3));
  EXPECT_FATAL_FAILURE(ASSERT_FALSE(ResultIsEvenNoExplanation(2)),
                       "Value of: ResultIsEvenNoExplanation(2)\n"
                       "  Actual: true\n"
                       "Expected: false");
}

#ifdef __BORLANDC__
// Restores warnings after previous "#pragma option push" supressed them
# pragma option pop
#endif

// Tests using ASSERT_EQ on double values.  The purpose is to make
// sure that the specialization we did for integer and anonymous enums
// isn't used for double arguments.
TEST(ExpectTest, ASSERT_EQ_Double) {
  // A success.
  ASSERT_EQ(5.6, 5.6);

  // A failure.
  EXPECT_FATAL_FAILURE(ASSERT_EQ(5.1, 5.2),
                       "5.1");
}

// Tests ASSERT_EQ.
TEST(AssertionTest, ASSERT_EQ) {
  ASSERT_EQ(5, 2 + 3);
  EXPECT_FATAL_FAILURE(ASSERT_EQ(5, 2*3),
                       "Value of: 2*3\n"
                       "  Actual: 6\n"
                       "Expected: 5");
}

// Tests ASSERT_EQ(NULL, pointer).
#if GTEST_CAN_COMPARE_NULL
TEST(AssertionTest, ASSERT_EQ_NULL) {
  // A success.
  const char* p = NULL;
  // Some older GCC versions may issue a spurious waring in this or the next
  // assertion statement. This warning should not be suppressed with
  // static_cast since the test verifies the ability to use bare NULL as the
  // expected parameter to the macro.
  ASSERT_EQ(NULL, p);

  // A failure.
  static int n = 0;
  EXPECT_FATAL_FAILURE(ASSERT_EQ(NULL, &n),
                       "Value of: &n\n");
}
#endif  // GTEST_CAN_COMPARE_NULL

// Tests ASSERT_EQ(0, non_pointer).  Since the literal 0 can be
// treated as a null pointer by the compiler, we need to make sure
// that ASSERT_EQ(0, non_pointer) isn't interpreted by Google Test as
// ASSERT_EQ(static_cast<void*>(NULL), non_pointer).
TEST(ExpectTest, ASSERT_EQ_0) {
  int n = 0;

  // A success.
  ASSERT_EQ(0, n);

  // A failure.
  EXPECT_FATAL_FAILURE(ASSERT_EQ(0, 5.6),
                       "Expected: 0");
}

// Tests ASSERT_NE.
TEST(AssertionTest, ASSERT_NE) {
  ASSERT_NE(6, 7);
  EXPECT_FATAL_FAILURE(ASSERT_NE('a', 'a'),
                       "Expected: ('a') != ('a'), "
                       "actual: 'a' (97, 0x61) vs 'a' (97, 0x61)");
}

// Tests ASSERT_LE.
TEST(AssertionTest, ASSERT_LE) {
  ASSERT_LE(2, 3);
  ASSERT_LE(2, 2);
  EXPECT_FATAL_FAILURE(ASSERT_LE(2, 0),
                       "Expected: (2) <= (0), actual: 2 vs 0");
}

// Tests ASSERT_LT.
TEST(AssertionTest, ASSERT_LT) {
  ASSERT_LT(2, 3);
  EXPECT_FATAL_FAILURE(ASSERT_LT(2, 2),
                       "Expected: (2) < (2), actual: 2 vs 2");
}

// Tests ASSERT_GE.
TEST(AssertionTest, ASSERT_GE) {
  ASSERT_GE(2, 1);
  ASSERT_GE(2, 2);
  EXPECT_FATAL_FAILURE(ASSERT_GE(2, 3),
                       "Expected: (2) >= (3), actual: 2 vs 3");
}

// Tests ASSERT_GT.
TEST(AssertionTest, ASSERT_GT) {
  ASSERT_GT(2, 1);
  EXPECT_FATAL_FAILURE(ASSERT_GT(2, 2),
                       "Expected: (2) > (2), actual: 2 vs 2");
}

#if GTEST_HAS_EXCEPTIONS

void ThrowNothing() {}

// Tests ASSERT_THROW.
TEST(AssertionTest, ASSERT_THROW) {
  ASSERT_THROW(ThrowAnInteger(), int);

# ifndef __BORLANDC__

  // ICE's in C++Builder 2007 and 2009.
  EXPECT_FATAL_FAILURE(
      ASSERT_THROW(ThrowAnInteger(), bool),
      "Expected: ThrowAnInteger() throws an exception of type bool.\n"
      "  Actual: it throws a different type.");
# endif

  EXPECT_FATAL_FAILURE(
      ASSERT_THROW(ThrowNothing(), bool),
      "Expected: ThrowNothing() throws an exception of type bool.\n"
      "  Actual: it throws nothing.");
}

// Tests ASSERT_NO_THROW.
TEST(AssertionTest, ASSERT_NO_THROW) {
  ASSERT_NO_THROW(ThrowNothing());
  EXPECT_FATAL_FAILURE(ASSERT_NO_THROW(ThrowAnInteger()),
                       "Expected: ThrowAnInteger() doesn't throw an exception."
                       "\n  Actual: it throws.");
}

// Tests ASSERT_ANY_THROW.
TEST(AssertionTest, ASSERT_ANY_THROW) {
  ASSERT_ANY_THROW(ThrowAnInteger());
  EXPECT_FATAL_FAILURE(
      ASSERT_ANY_THROW(ThrowNothing()),
      "Expected: ThrowNothing() throws an exception.\n"
      "  Actual: it doesn't.");
}

#endif  // GTEST_HAS_EXCEPTIONS

// Makes sure we deal with the precedence of <<.  This test should
// compile.
TEST(AssertionTest, AssertPrecedence) {
  ASSERT_EQ(1 < 2, true);
  bool false_value = false;
  ASSERT_EQ(true && false_value, false);
}

// A subroutine used by the following test.
void TestEq1(int x) {
  ASSERT_EQ(1, x);
}

// Tests calling a test subroutine that's not part of a fixture.
TEST(AssertionTest, NonFixtureSubroutine) {
  EXPECT_FATAL_FAILURE(TestEq1(2),
                       "Value of: x");
}

// An uncopyable class.
class Uncopyable {
 public:
  explicit Uncopyable(int a_value) : value_(a_value) {}

  int value() const { return value_; }
  bool operator==(const Uncopyable& rhs) const {
    return value() == rhs.value();
  }
 private:
  // This constructor deliberately has no implementation, as we don't
  // want this class to be copyable.
  Uncopyable(const Uncopyable&);  // NOLINT

  int value_;
};

::std::ostream& operator<<(::std::ostream& os, const Uncopyable& value) {
  return os << value.value();
}


bool IsPositiveUncopyable(const Uncopyable& x) {
  return x.value() > 0;
}

// A subroutine used by the following test.
void TestAssertNonPositive() {
  Uncopyable y(-1);
  ASSERT_PRED1(IsPositiveUncopyable, y);
}
// A subroutine used by the following test.
void TestAssertEqualsUncopyable() {
  Uncopyable x(5);
  Uncopyable y(-1);
  ASSERT_EQ(x, y);
}

// Tests that uncopyable objects can be used in assertions.
TEST(AssertionTest, AssertWorksWithUncopyableObject) {
  Uncopyable x(5);
  ASSERT_PRED1(IsPositiveUncopyable, x);
  ASSERT_EQ(x, x);
  EXPECT_FATAL_FAILURE(TestAssertNonPositive(),
    "IsPositiveUncopyable(y) evaluates to false, where\ny evaluates to -1");
  EXPECT_FATAL_FAILURE(TestAssertEqualsUncopyable(),
    "Value of: y\n  Actual: -1\nExpected: x\nWhich is: 5");
}

// Tests that uncopyable objects can be used in expects.
TEST(AssertionTest, ExpectWorksWithUncopyableObject) {
  Uncopyable x(5);
  EXPECT_PRED1(IsPositiveUncopyable, x);
  Uncopyable y(-1);
  EXPECT_NONFATAL_FAILURE(EXPECT_PRED1(IsPositiveUncopyable, y),
    "IsPositiveUncopyable(y) evaluates to false, where\ny evaluates to -1");
  EXPECT_EQ(x, x);
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(x, y),
    "Value of: y\n  Actual: -1\nExpected: x\nWhich is: 5");
}

enum NamedEnum {
  kE1 = 0,
  kE2 = 1
};

TEST(AssertionTest, NamedEnum) {
  EXPECT_EQ(kE1, kE1);
  EXPECT_LT(kE1, kE2);
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(kE1, kE2), "Which is: 0");
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(kE1, kE2), "Actual: 1");
}

// The version of gcc used in XCode 2.2 has a bug and doesn't allow
// anonymous enums in assertions.  Therefore the following test is not
// done on Mac.
// Sun Studio and HP aCC also reject this code.
#if !GTEST_OS_MAC && !defined(__SUNPRO_CC) && !defined(__HP_aCC)

// Tests using assertions with anonymous enums.
enum {
  kCaseA = -1,

# if GTEST_OS_LINUX

  // We want to test the case where the size of the anonymous enum is
  // larger than sizeof(int), to make sure our implementation of the
  // assertions doesn't truncate the enums.  However, MSVC
  // (incorrectly) doesn't allow an enum value to exceed the range of
  // an int, so this has to be conditionally compiled.
  //
  // On Linux, kCaseB and kCaseA have the same value when truncated to
  // int size.  We want to test whether this will confuse the
  // assertions.
  kCaseB = testing::internal::kMaxBiggestInt,

# else

  kCaseB = INT_MAX,

# endif  // GTEST_OS_LINUX

  kCaseC = 42
};

TEST(AssertionTest, AnonymousEnum) {
# if GTEST_OS_LINUX

  EXPECT_EQ(static_cast<int>(kCaseA), static_cast<int>(kCaseB));

# endif  // GTEST_OS_LINUX

  EXPECT_EQ(kCaseA, kCaseA);
  EXPECT_NE(kCaseA, kCaseB);
  EXPECT_LT(kCaseA, kCaseB);
  EXPECT_LE(kCaseA, kCaseB);
  EXPECT_GT(kCaseB, kCaseA);
  EXPECT_GE(kCaseA, kCaseA);
  EXPECT_NONFATAL_FAILURE(EXPECT_GE(kCaseA, kCaseB),
                          "(kCaseA) >= (kCaseB)");
  EXPECT_NONFATAL_FAILURE(EXPECT_GE(kCaseA, kCaseC),
                          "-1 vs 42");

  ASSERT_EQ(kCaseA, kCaseA);
  ASSERT_NE(kCaseA, kCaseB);
  ASSERT_LT(kCaseA, kCaseB);
  ASSERT_LE(kCaseA, kCaseB);
  ASSERT_GT(kCaseB, kCaseA);
  ASSERT_GE(kCaseA, kCaseA);

# ifndef __BORLANDC__

  // ICE's in C++Builder.
  EXPECT_FATAL_FAILURE(ASSERT_EQ(kCaseA, kCaseB),
                       "Value of: kCaseB");
  EXPECT_FATAL_FAILURE(ASSERT_EQ(kCaseA, kCaseC),
                       "Actual: 42");
# endif

  EXPECT_FATAL_FAILURE(ASSERT_EQ(kCaseA, kCaseC),
                       "Which is: -1");
}

#endif  // !GTEST_OS_MAC && !defined(__SUNPRO_CC)

#if GTEST_OS_WINDOWS

static HRESULT UnexpectedHRESULTFailure() {
  return E_UNEXPECTED;
}

static HRESULT OkHRESULTSuccess() {
  return S_OK;
}

static HRESULT FalseHRESULTSuccess() {
  return S_FALSE;
}

// HRESULT assertion tests test both zero and non-zero
// success codes as well as failure message for each.
//
// Windows CE doesn't support message texts.
TEST(HRESULTAssertionTest, EXPECT_HRESULT_SUCCEEDED) {
  EXPECT_HRESULT_SUCCEEDED(S_OK);
  EXPECT_HRESULT_SUCCEEDED(S_FALSE);

  EXPECT_NONFATAL_FAILURE(EXPECT_HRESULT_SUCCEEDED(UnexpectedHRESULTFailure()),
    "Expected: (UnexpectedHRESULTFailure()) succeeds.\n"
    "  Actual: 0x8000FFFF");
}

TEST(HRESULTAssertionTest, ASSERT_HRESULT_SUCCEEDED) {
  ASSERT_HRESULT_SUCCEEDED(S_OK);
  ASSERT_HRESULT_SUCCEEDED(S_FALSE);

  EXPECT_FATAL_FAILURE(ASSERT_HRESULT_SUCCEEDED(UnexpectedHRESULTFailure()),
    "Expected: (UnexpectedHRESULTFailure()) succeeds.\n"
    "  Actual: 0x8000FFFF");
}

TEST(HRESULTAssertionTest, EXPECT_HRESULT_FAILED) {
  EXPECT_HRESULT_FAILED(E_UNEXPECTED);

  EXPECT_NONFATAL_FAILURE(EXPECT_HRESULT_FAILED(OkHRESULTSuccess()),
    "Expected: (OkHRESULTSuccess()) fails.\n"
    "  Actual: 0x00000000");
  EXPECT_NONFATAL_FAILURE(EXPECT_HRESULT_FAILED(FalseHRESULTSuccess()),
    "Expected: (FalseHRESULTSuccess()) fails.\n"
    "  Actual: 0x00000001");
}

TEST(HRESULTAssertionTest, ASSERT_HRESULT_FAILED) {
  ASSERT_HRESULT_FAILED(E_UNEXPECTED);

# ifndef __BORLANDC__

  // ICE's in C++Builder 2007 and 2009.
  EXPECT_FATAL_FAILURE(ASSERT_HRESULT_FAILED(OkHRESULTSuccess()),
    "Expected: (OkHRESULTSuccess()) fails.\n"
    "  Actual: 0x00000000");
# endif

  EXPECT_FATAL_FAILURE(ASSERT_HRESULT_FAILED(FalseHRESULTSuccess()),
    "Expected: (FalseHRESULTSuccess()) fails.\n"
    "  Actual: 0x00000001");
}

// Tests that streaming to the HRESULT macros works.
TEST(HRESULTAssertionTest, Streaming) {
  EXPECT_HRESULT_SUCCEEDED(S_OK) << "unexpected failure";
  ASSERT_HRESULT_SUCCEEDED(S_OK) << "unexpected failure";
  EXPECT_HRESULT_FAILED(E_UNEXPECTED) << "unexpected failure";
  ASSERT_HRESULT_FAILED(E_UNEXPECTED) << "unexpected failure";

  EXPECT_NONFATAL_FAILURE(
      EXPECT_HRESULT_SUCCEEDED(E_UNEXPECTED) << "expected failure",
      "expected failure");

# ifndef __BORLANDC__

  // ICE's in C++Builder 2007 and 2009.
  EXPECT_FATAL_FAILURE(
      ASSERT_HRESULT_SUCCEEDED(E_UNEXPECTED) << "expected failure",
      "expected failure");
# endif

  EXPECT_NONFATAL_FAILURE(
      EXPECT_HRESULT_FAILED(S_OK) << "expected failure",
      "expected failure");

  EXPECT_FATAL_FAILURE(
      ASSERT_HRESULT_FAILED(S_OK) << "expected failure",
      "expected failure");
}

#endif  // GTEST_OS_WINDOWS

#ifdef __BORLANDC__
// Silences warnings: "Condition is always true", "Unreachable code"
# pragma option push -w-ccc -w-rch
#endif

// Tests that the assertion macros behave like single statements.
TEST(AssertionSyntaxTest, BasicAssertionsBehavesLikeSingleStatement) {
  if (AlwaysFalse())
    ASSERT_TRUE(false) << "This should never be executed; "
                          "It's a compilation test only.";

  if (AlwaysTrue())
    EXPECT_FALSE(false);
  else
    ;  // NOLINT

  if (AlwaysFalse())
    ASSERT_LT(1, 3);

  if (AlwaysFalse())
    ;  // NOLINT
  else
    EXPECT_GT(3, 2) << "";
}

#if GTEST_HAS_EXCEPTIONS
// Tests that the compiler will not complain about unreachable code in the
// EXPECT_THROW/EXPECT_ANY_THROW/EXPECT_NO_THROW macros.
TEST(ExpectThrowTest, DoesNotGenerateUnreachableCodeWarning) {
  int n = 0;

  EXPECT_THROW(throw 1, int);
  EXPECT_NONFATAL_FAILURE(EXPECT_THROW(n++, int), "");
  EXPECT_NONFATAL_FAILURE(EXPECT_THROW(throw 1, const char*), "");
  EXPECT_NO_THROW(n++);
  EXPECT_NONFATAL_FAILURE(EXPECT_NO_THROW(throw 1), "");
  EXPECT_ANY_THROW(throw 1);
  EXPECT_NONFATAL_FAILURE(EXPECT_ANY_THROW(n++), "");
}

TEST(AssertionSyntaxTest, ExceptionAssertionsBehavesLikeSingleStatement) {
  if (AlwaysFalse())
    EXPECT_THROW(ThrowNothing(), bool);

  if (AlwaysTrue())
    EXPECT_THROW(ThrowAnInteger(), int);
  else
    ;  // NOLINT

  if (AlwaysFalse())
    EXPECT_NO_THROW(ThrowAnInteger());

  if (AlwaysTrue())
    EXPECT_NO_THROW(ThrowNothing());
  else
    ;  // NOLINT

  if (AlwaysFalse())
    EXPECT_ANY_THROW(ThrowNothing());

  if (AlwaysTrue())
    EXPECT_ANY_THROW(ThrowAnInteger());
  else
    ;  // NOLINT
}
#endif  // GTEST_HAS_EXCEPTIONS

TEST(AssertionSyntaxTest, NoFatalFailureAssertionsBehavesLikeSingleStatement) {
  if (AlwaysFalse())
    EXPECT_NO_FATAL_FAILURE(FAIL()) << "This should never be executed. "
                                    << "It's a compilation test only.";
  else
    ;  // NOLINT

  if (AlwaysFalse())
    ASSERT_NO_FATAL_FAILURE(FAIL()) << "";
  else
    ;  // NOLINT

  if (AlwaysTrue())
    EXPECT_NO_FATAL_FAILURE(SUCCEED());
  else
    ;  // NOLINT

  if (AlwaysFalse())
    ;  // NOLINT
  else
    ASSERT_NO_FATAL_FAILURE(SUCCEED());
}

// Tests that the assertion macros work well with switch statements.
TEST(AssertionSyntaxTest, WorksWithSwitch) {
  switch (0) {
    case 1:
      break;
    default:
      ASSERT_TRUE(true);
  }

  switch (0)
    case 0:
      EXPECT_FALSE(false) << "EXPECT_FALSE failed in switch case";

  // Binary assertions are implemented using a different code path
  // than the Boolean assertions.  Hence we test them separately.
  switch (0) {
    case 1:
    default:
      ASSERT_EQ(1, 1) << "ASSERT_EQ failed in default switch handler";
  }

  switch (0)
    case 0:
      EXPECT_NE(1, 2);
}

#if GTEST_HAS_EXCEPTIONS

void ThrowAString() {
    throw "String";
}

// Test that the exception assertion macros compile and work with const
// type qualifier.
TEST(AssertionSyntaxTest, WorksWithConst) {
    ASSERT_THROW(ThrowAString(), const char*);

    EXPECT_THROW(ThrowAString(), const char*);
}

#endif  // GTEST_HAS_EXCEPTIONS

}  // namespace

namespace testing {

// Tests that Google Test tracks SUCCEED*.
TEST(SuccessfulAssertionTest, SUCCEED) {
  SUCCEED();
  SUCCEED() << "OK";
  EXPECT_EQ(2, GetUnitTestImpl()->current_test_result()->total_part_count());
}

// Tests that Google Test doesn't track successful EXPECT_*.
TEST(SuccessfulAssertionTest, EXPECT) {
  EXPECT_TRUE(true);
  EXPECT_EQ(0, GetUnitTestImpl()->current_test_result()->total_part_count());
}

// Tests that Google Test doesn't track successful EXPECT_STR*.
TEST(SuccessfulAssertionTest, EXPECT_STR) {
  EXPECT_STREQ("", "");
  EXPECT_EQ(0, GetUnitTestImpl()->current_test_result()->total_part_count());
}

// Tests that Google Test doesn't track successful ASSERT_*.
TEST(SuccessfulAssertionTest, ASSERT) {
  ASSERT_TRUE(true);
  EXPECT_EQ(0, GetUnitTestImpl()->current_test_result()->total_part_count());
}

// Tests that Google Test doesn't track successful ASSERT_STR*.
TEST(SuccessfulAssertionTest, ASSERT_STR) {
  ASSERT_STREQ("", "");
  EXPECT_EQ(0, GetUnitTestImpl()->current_test_result()->total_part_count());
}

}  // namespace testing

namespace {

// Tests the message streaming variation of assertions.

TEST(AssertionWithMessageTest, EXPECT) {
  EXPECT_EQ(1, 1) << "This should succeed.";
  EXPECT_NONFATAL_FAILURE(EXPECT_NE(1, 1) << "Expected failure #1.",
                          "Expected failure #1");
  EXPECT_LE(1, 2) << "This should succeed.";
  EXPECT_NONFATAL_FAILURE(EXPECT_LT(1, 0) << "Expected failure #2.",
                          "Expected failure #2.");
  EXPECT_GE(1, 0) << "This should succeed.";
  EXPECT_NONFATAL_FAILURE(EXPECT_GT(1, 2) << "Expected failure #3.",
                          "Expected failure #3.");

  EXPECT_STREQ("1", "1") << "This should succeed.";
  EXPECT_NONFATAL_FAILURE(EXPECT_STRNE("1", "1") << "Expected failure #4.",
                          "Expected failure #4.");
  EXPECT_STRCASEEQ("a", "A") << "This should succeed.";
  EXPECT_NONFATAL_FAILURE(EXPECT_STRCASENE("a", "A") << "Expected failure #5.",
                          "Expected failure #5.");

  EXPECT_FLOAT_EQ(1, 1) << "This should succeed.";
  EXPECT_NONFATAL_FAILURE(EXPECT_DOUBLE_EQ(1, 1.2) << "Expected failure #6.",
                          "Expected failure #6.");
  EXPECT_NEAR(1, 1.1, 0.2) << "This should succeed.";
}

TEST(AssertionWithMessageTest, ASSERT) {
  ASSERT_EQ(1, 1) << "This should succeed.";
  ASSERT_NE(1, 2) << "This should succeed.";
  ASSERT_LE(1, 2) << "This should succeed.";
  ASSERT_LT(1, 2) << "This should succeed.";
  ASSERT_GE(1, 0) << "This should succeed.";
  EXPECT_FATAL_FAILURE(ASSERT_GT(1, 2) << "Expected failure.",
                       "Expected failure.");
}

TEST(AssertionWithMessageTest, ASSERT_STR) {
  ASSERT_STREQ("1", "1") << "This should succeed.";
  ASSERT_STRNE("1", "2") << "This should succeed.";
  ASSERT_STRCASEEQ("a", "A") << "This should succeed.";
  EXPECT_FATAL_FAILURE(ASSERT_STRCASENE("a", "A") << "Expected failure.",
                       "Expected failure.");
}

TEST(AssertionWithMessageTest, ASSERT_FLOATING) {
  ASSERT_FLOAT_EQ(1, 1) << "This should succeed.";
  ASSERT_DOUBLE_EQ(1, 1) << "This should succeed.";
  EXPECT_FATAL_FAILURE(ASSERT_NEAR(1,1.2, 0.1) << "Expect failure.",  // NOLINT
                       "Expect failure.");
  // To work around a bug in gcc 2.95.0, there is intentionally no
  // space after the first comma in the previous statement.
}

// Tests using ASSERT_FALSE with a streamed message.
TEST(AssertionWithMessageTest, ASSERT_FALSE) {
  ASSERT_FALSE(false) << "This shouldn't fail.";
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_FALSE(true) << "Expected failure: " << 2 << " > " << 1
                       << " evaluates to " << true;
  }, "Expected failure");
}

// Tests using FAIL with a streamed message.
TEST(AssertionWithMessageTest, FAIL) {
  EXPECT_FATAL_FAILURE(FAIL() << 0,
                       "0");
}

// Tests using SUCCEED with a streamed message.
TEST(AssertionWithMessageTest, SUCCEED) {
  SUCCEED() << "Success == " << 1;
}

// Tests using ASSERT_TRUE with a streamed message.
TEST(AssertionWithMessageTest, ASSERT_TRUE) {
  ASSERT_TRUE(true) << "This should succeed.";
  ASSERT_TRUE(true) << true;
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_TRUE(false) << static_cast<const char *>(NULL)
                       << static_cast<char *>(NULL);
  }, "(null)(null)");
}

#if GTEST_OS_WINDOWS
// Tests using wide strings in assertion messages.
TEST(AssertionWithMessageTest, WideStringMessage) {
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_TRUE(false) << L"This failure is expected.\x8119";
  }, "This failure is expected.");
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_EQ(1, 2) << "This failure is "
                    << L"expected too.\x8120";
  }, "This failure is expected too.");
}
#endif  // GTEST_OS_WINDOWS

// Tests EXPECT_TRUE.
TEST(ExpectTest, EXPECT_TRUE) {
  EXPECT_TRUE(true) << "Intentional success";
  EXPECT_NONFATAL_FAILURE(EXPECT_TRUE(false) << "Intentional failure #1.",
                          "Intentional failure #1.");
  EXPECT_NONFATAL_FAILURE(EXPECT_TRUE(false) << "Intentional failure #2.",
                          "Intentional failure #2.");
  EXPECT_TRUE(2 > 1);  // NOLINT
  EXPECT_NONFATAL_FAILURE(EXPECT_TRUE(2 < 1),
                          "Value of: 2 < 1\n"
                          "  Actual: false\n"
                          "Expected: true");
  EXPECT_NONFATAL_FAILURE(EXPECT_TRUE(2 > 3),
                          "2 > 3");
}

// Tests EXPECT_TRUE(predicate) for predicates returning AssertionResult.
TEST(ExpectTest, ExpectTrueWithAssertionResult) {
  EXPECT_TRUE(ResultIsEven(2));
  EXPECT_NONFATAL_FAILURE(EXPECT_TRUE(ResultIsEven(3)),
                          "Value of: ResultIsEven(3)\n"
                          "  Actual: false (3 is odd)\n"
                          "Expected: true");
  EXPECT_TRUE(ResultIsEvenNoExplanation(2));
  EXPECT_NONFATAL_FAILURE(EXPECT_TRUE(ResultIsEvenNoExplanation(3)),
                          "Value of: ResultIsEvenNoExplanation(3)\n"
                          "  Actual: false (3 is odd)\n"
                          "Expected: true");
}

// Tests EXPECT_FALSE with a streamed message.
TEST(ExpectTest, EXPECT_FALSE) {
  EXPECT_FALSE(2 < 1);  // NOLINT
  EXPECT_FALSE(false) << "Intentional success";
  EXPECT_NONFATAL_FAILURE(EXPECT_FALSE(true) << "Intentional failure #1.",
                          "Intentional failure #1.");
  EXPECT_NONFATAL_FAILURE(EXPECT_FALSE(true) << "Intentional failure #2.",
                          "Intentional failure #2.");
  EXPECT_NONFATAL_FAILURE(EXPECT_FALSE(2 > 1),
                          "Value of: 2 > 1\n"
                          "  Actual: true\n"
                          "Expected: false");
  EXPECT_NONFATAL_FAILURE(EXPECT_FALSE(2 < 3),
                          "2 < 3");
}

// Tests EXPECT_FALSE(predicate) for predicates returning AssertionResult.
TEST(ExpectTest, ExpectFalseWithAssertionResult) {
  EXPECT_FALSE(ResultIsEven(3));
  EXPECT_NONFATAL_FAILURE(EXPECT_FALSE(ResultIsEven(2)),
                          "Value of: ResultIsEven(2)\n"
                          "  Actual: true (2 is even)\n"
                          "Expected: false");
  EXPECT_FALSE(ResultIsEvenNoExplanation(3));
  EXPECT_NONFATAL_FAILURE(EXPECT_FALSE(ResultIsEvenNoExplanation(2)),
                          "Value of: ResultIsEvenNoExplanation(2)\n"
                          "  Actual: true\n"
                          "Expected: false");
}

#ifdef __BORLANDC__
// Restores warnings after previous "#pragma option push" supressed them
# pragma option pop
#endif

// Tests EXPECT_EQ.
TEST(ExpectTest, EXPECT_EQ) {
  EXPECT_EQ(5, 2 + 3);
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(5, 2*3),
                          "Value of: 2*3\n"
                          "  Actual: 6\n"
                          "Expected: 5");
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(5, 2 - 3),
                          "2 - 3");
}

// Tests using EXPECT_EQ on double values.  The purpose is to make
// sure that the specialization we did for integer and anonymous enums
// isn't used for double arguments.
TEST(ExpectTest, EXPECT_EQ_Double) {
  // A success.
  EXPECT_EQ(5.6, 5.6);

  // A failure.
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(5.1, 5.2),
                          "5.1");
}

#if GTEST_CAN_COMPARE_NULL
// Tests EXPECT_EQ(NULL, pointer).
TEST(ExpectTest, EXPECT_EQ_NULL) {
  // A success.
  const char* p = NULL;
  // Some older GCC versions may issue a spurious warning in this or the next
  // assertion statement. This warning should not be suppressed with
  // static_cast since the test verifies the ability to use bare NULL as the
  // expected parameter to the macro.
  EXPECT_EQ(NULL, p);

  // A failure.
  int n = 0;
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(NULL, &n),
                          "Value of: &n\n");
}
#endif  // GTEST_CAN_COMPARE_NULL

// Tests EXPECT_EQ(0, non_pointer).  Since the literal 0 can be
// treated as a null pointer by the compiler, we need to make sure
// that EXPECT_EQ(0, non_pointer) isn't interpreted by Google Test as
// EXPECT_EQ(static_cast<void*>(NULL), non_pointer).
TEST(ExpectTest, EXPECT_EQ_0) {
  int n = 0;

  // A success.
  EXPECT_EQ(0, n);

  // A failure.
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(0, 5.6),
                          "Expected: 0");
}

// Tests EXPECT_NE.
TEST(ExpectTest, EXPECT_NE) {
  EXPECT_NE(6, 7);

  EXPECT_NONFATAL_FAILURE(EXPECT_NE('a', 'a'),
                          "Expected: ('a') != ('a'), "
                          "actual: 'a' (97, 0x61) vs 'a' (97, 0x61)");
  EXPECT_NONFATAL_FAILURE(EXPECT_NE(2, 2),
                          "2");
  char* const p0 = NULL;
  EXPECT_NONFATAL_FAILURE(EXPECT_NE(p0, p0),
                          "p0");
  // Only way to get the Nokia compiler to compile the cast
  // is to have a separate void* variable first. Putting
  // the two casts on the same line doesn't work, neither does
  // a direct C-style to char*.
  void* pv1 = (void*)0x1234;  // NOLINT
  char* const p1 = reinterpret_cast<char*>(pv1);
  EXPECT_NONFATAL_FAILURE(EXPECT_NE(p1, p1),
                          "p1");
}

// Tests EXPECT_LE.
TEST(ExpectTest, EXPECT_LE) {
  EXPECT_LE(2, 3);
  EXPECT_LE(2, 2);
  EXPECT_NONFATAL_FAILURE(EXPECT_LE(2, 0),
                          "Expected: (2) <= (0), actual: 2 vs 0");
  EXPECT_NONFATAL_FAILURE(EXPECT_LE(1.1, 0.9),
                          "(1.1) <= (0.9)");
}

// Tests EXPECT_LT.
TEST(ExpectTest, EXPECT_LT) {
  EXPECT_LT(2, 3);
  EXPECT_NONFATAL_FAILURE(EXPECT_LT(2, 2),
                          "Expected: (2) < (2), actual: 2 vs 2");
  EXPECT_NONFATAL_FAILURE(EXPECT_LT(2, 1),
                          "(2) < (1)");
}

// Tests EXPECT_GE.
TEST(ExpectTest, EXPECT_GE) {
  EXPECT_GE(2, 1);
  EXPECT_GE(2, 2);
  EXPECT_NONFATAL_FAILURE(EXPECT_GE(2, 3),
                          "Expected: (2) >= (3), actual: 2 vs 3");
  EXPECT_NONFATAL_FAILURE(EXPECT_GE(0.9, 1.1),
                          "(0.9) >= (1.1)");
}

// Tests EXPECT_GT.
TEST(ExpectTest, EXPECT_GT) {
  EXPECT_GT(2, 1);
  EXPECT_NONFATAL_FAILURE(EXPECT_GT(2, 2),
                          "Expected: (2) > (2), actual: 2 vs 2");
  EXPECT_NONFATAL_FAILURE(EXPECT_GT(2, 3),
                          "(2) > (3)");
}

#if GTEST_HAS_EXCEPTIONS

// Tests EXPECT_THROW.
TEST(ExpectTest, EXPECT_THROW) {
  EXPECT_THROW(ThrowAnInteger(), int);
  EXPECT_NONFATAL_FAILURE(EXPECT_THROW(ThrowAnInteger(), bool),
                          "Expected: ThrowAnInteger() throws an exception of "
                          "type bool.\n  Actual: it throws a different type.");
  EXPECT_NONFATAL_FAILURE(
      EXPECT_THROW(ThrowNothing(), bool),
      "Expected: ThrowNothing() throws an exception of type bool.\n"
      "  Actual: it throws nothing.");
}

// Tests EXPECT_NO_THROW.
TEST(ExpectTest, EXPECT_NO_THROW) {
  EXPECT_NO_THROW(ThrowNothing());
  EXPECT_NONFATAL_FAILURE(EXPECT_NO_THROW(ThrowAnInteger()),
                          "Expected: ThrowAnInteger() doesn't throw an "
                          "exception.\n  Actual: it throws.");
}

// Tests EXPECT_ANY_THROW.
TEST(ExpectTest, EXPECT_ANY_THROW) {
  EXPECT_ANY_THROW(ThrowAnInteger());
  EXPECT_NONFATAL_FAILURE(
      EXPECT_ANY_THROW(ThrowNothing()),
      "Expected: ThrowNothing() throws an exception.\n"
      "  Actual: it doesn't.");
}

#endif  // GTEST_HAS_EXCEPTIONS

// Make sure we deal with the precedence of <<.
TEST(ExpectTest, ExpectPrecedence) {
  EXPECT_EQ(1 < 2, true);
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(true, true && false),
                          "Value of: true && false");
}


// Tests the StreamableToString() function.

// Tests using StreamableToString() on a scalar.
TEST(StreamableToStringTest, Scalar) {
  EXPECT_STREQ("5", StreamableToString(5).c_str());
}

// Tests using StreamableToString() on a non-char pointer.
TEST(StreamableToStringTest, Pointer) {
  int n = 0;
  int* p = &n;
  EXPECT_STRNE("(null)", StreamableToString(p).c_str());
}

// Tests using StreamableToString() on a NULL non-char pointer.
TEST(StreamableToStringTest, NullPointer) {
  int* p = NULL;
  EXPECT_STREQ("(null)", StreamableToString(p).c_str());
}

// Tests using StreamableToString() on a C string.
TEST(StreamableToStringTest, CString) {
  EXPECT_STREQ("Foo", StreamableToString("Foo").c_str());
}

// Tests using StreamableToString() on a NULL C string.
TEST(StreamableToStringTest, NullCString) {
  char* p = NULL;
  EXPECT_STREQ("(null)", StreamableToString(p).c_str());
}

// Tests using streamable values as assertion messages.

// Tests using std::string as an assertion message.
TEST(StreamableTest, string) {
  static const std::string str(
      "This failure message is a std::string, and is expected.");
  EXPECT_FATAL_FAILURE(FAIL() << str,
                       str.c_str());
}

// Tests that we can output strings containing embedded NULs.
// Limited to Linux because we can only do this with std::string's.
TEST(StreamableTest, stringWithEmbeddedNUL) {
  static const char char_array_with_nul[] =
      "Here's a NUL\0 and some more string";
  static const std::string string_with_nul(char_array_with_nul,
                                           sizeof(char_array_with_nul)
                                           - 1);  // drops the trailing NUL
  EXPECT_FATAL_FAILURE(FAIL() << string_with_nul,
                       "Here's a NUL\\0 and some more string");
}

// Tests that we can output a NUL char.
TEST(StreamableTest, NULChar) {
  EXPECT_FATAL_FAILURE({  // NOLINT
    FAIL() << "A NUL" << '\0' << " and some more string";
  }, "A NUL\\0 and some more string");
}

// Tests using int as an assertion message.
TEST(StreamableTest, int) {
  EXPECT_FATAL_FAILURE(FAIL() << 900913,
                       "900913");
}

// Tests using NULL char pointer as an assertion message.
//
// In MSVC, streaming a NULL char * causes access violation.  Google Test
// implemented a workaround (substituting "(null)" for NULL).  This
// tests whether the workaround works.
TEST(StreamableTest, NullCharPtr) {
  EXPECT_FATAL_FAILURE(FAIL() << static_cast<const char*>(NULL),
                       "(null)");
}

// Tests that basic IO manipulators (endl, ends, and flush) can be
// streamed to testing::Message.
TEST(StreamableTest, BasicIoManip) {
  EXPECT_FATAL_FAILURE({  // NOLINT
    FAIL() << "Line 1." << std::endl
           << "A NUL char " << std::ends << std::flush << " in line 2.";
  }, "Line 1.\nA NUL char \\0 in line 2.");
}

// Tests the macros that haven't been covered so far.

void AddFailureHelper(bool* aborted) {
  *aborted = true;
  ADD_FAILURE() << "Intentional failure.";
  *aborted = false;
}

// Tests ADD_FAILURE.
TEST(MacroTest, ADD_FAILURE) {
  bool aborted = true;
  EXPECT_NONFATAL_FAILURE(AddFailureHelper(&aborted),
                          "Intentional failure.");
  EXPECT_FALSE(aborted);
}

// Tests ADD_FAILURE_AT.
TEST(MacroTest, ADD_FAILURE_AT) {
  // Verifies that ADD_FAILURE_AT does generate a nonfatal failure and
  // the failure message contains the user-streamed part.
  EXPECT_NONFATAL_FAILURE(ADD_FAILURE_AT("foo.cc", 42) << "Wrong!", "Wrong!");

  // Verifies that the user-streamed part is optional.
  EXPECT_NONFATAL_FAILURE(ADD_FAILURE_AT("foo.cc", 42), "Failed");

  // Unfortunately, we cannot verify that the failure message contains
  // the right file path and line number the same way, as
  // EXPECT_NONFATAL_FAILURE() doesn't get to see the file path and
  // line number.  Instead, we do that in gtest_output_test_.cc.
}

// Tests FAIL.
TEST(MacroTest, FAIL) {
  EXPECT_FATAL_FAILURE(FAIL(),
                       "Failed");
  EXPECT_FATAL_FAILURE(FAIL() << "Intentional failure.",
                       "Intentional failure.");
}

// Tests SUCCEED
TEST(MacroTest, SUCCEED) {
  SUCCEED();
  SUCCEED() << "Explicit success.";
}

// Tests for EXPECT_EQ() and ASSERT_EQ().
//
// These tests fail *intentionally*, s.t. the failure messages can be
// generated and tested.
//
// We have different tests for different argument types.

// Tests using bool values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, Bool) {
  EXPECT_EQ(true,  true);
  EXPECT_FATAL_FAILURE({
      bool false_value = false;
      ASSERT_EQ(false_value, true);
    }, "Value of: true");
}

// Tests using int values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, Int) {
  ASSERT_EQ(32, 32);
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(32, 33),
                          "33");
}

// Tests using time_t values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, Time_T) {
  EXPECT_EQ(static_cast<time_t>(0),
            static_cast<time_t>(0));
  EXPECT_FATAL_FAILURE(ASSERT_EQ(static_cast<time_t>(0),
                                 static_cast<time_t>(1234)),
                       "1234");
}

// Tests using char values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, Char) {
  ASSERT_EQ('z', 'z');
  const char ch = 'b';
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ('\0', ch),
                          "ch");
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ('a', ch),
                          "ch");
}

// Tests using wchar_t values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, WideChar) {
  EXPECT_EQ(L'b', L'b');

  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(L'\0', L'x'),
                          "Value of: L'x'\n"
                          "  Actual: L'x' (120, 0x78)\n"
                          "Expected: L'\0'\n"
                          "Which is: L'\0' (0, 0x0)");

  static wchar_t wchar;
  wchar = L'b';
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(L'a', wchar),
                          "wchar");
  wchar = 0x8119;
  EXPECT_FATAL_FAILURE(ASSERT_EQ(static_cast<wchar_t>(0x8120), wchar),
                       "Value of: wchar");
}

// Tests using ::std::string values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, StdString) {
  // Compares a const char* to an std::string that has identical
  // content.
  ASSERT_EQ("Test", ::std::string("Test"));

  // Compares two identical std::strings.
  static const ::std::string str1("A * in the middle");
  static const ::std::string str2(str1);
  EXPECT_EQ(str1, str2);

  // Compares a const char* to an std::string that has different
  // content
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ("Test", ::std::string("test")),
                          "::std::string(\"test\")");

  // Compares an std::string to a char* that has different content.
  char* const p1 = const_cast<char*>("foo");
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(::std::string("bar"), p1),
                          "p1");

  // Compares two std::strings that have different contents, one of
  // which having a NUL character in the middle.  This should fail.
  static ::std::string str3(str1);
  str3.at(2) = '\0';
  EXPECT_FATAL_FAILURE(ASSERT_EQ(str1, str3),
                       "Value of: str3\n"
                       "  Actual: \"A \\0 in the middle\"");
}

#if GTEST_HAS_STD_WSTRING

// Tests using ::std::wstring values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, StdWideString) {
  // Compares two identical std::wstrings.
  const ::std::wstring wstr1(L"A * in the middle");
  const ::std::wstring wstr2(wstr1);
  ASSERT_EQ(wstr1, wstr2);

  // Compares an std::wstring to a const wchar_t* that has identical
  // content.
  const wchar_t kTestX8119[] = { 'T', 'e', 's', 't', 0x8119, '\0' };
  EXPECT_EQ(::std::wstring(kTestX8119), kTestX8119);

  // Compares an std::wstring to a const wchar_t* that has different
  // content.
  const wchar_t kTestX8120[] = { 'T', 'e', 's', 't', 0x8120, '\0' };
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_EQ(::std::wstring(kTestX8119), kTestX8120);
  }, "kTestX8120");

  // Compares two std::wstrings that have different contents, one of
  // which having a NUL character in the middle.
  ::std::wstring wstr3(wstr1);
  wstr3.at(2) = L'\0';
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(wstr1, wstr3),
                          "wstr3");

  // Compares a wchar_t* to an std::wstring that has different
  // content.
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_EQ(const_cast<wchar_t*>(L"foo"), ::std::wstring(L"bar"));
  }, "");
}

#endif  // GTEST_HAS_STD_WSTRING

#if GTEST_HAS_GLOBAL_STRING
// Tests using ::string values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, GlobalString) {
  // Compares a const char* to a ::string that has identical content.
  EXPECT_EQ("Test", ::string("Test"));

  // Compares two identical ::strings.
  const ::string str1("A * in the middle");
  const ::string str2(str1);
  ASSERT_EQ(str1, str2);

  // Compares a ::string to a const char* that has different content.
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(::string("Test"), "test"),
                          "test");

  // Compares two ::strings that have different contents, one of which
  // having a NUL character in the middle.
  ::string str3(str1);
  str3.at(2) = '\0';
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(str1, str3),
                          "str3");

  // Compares a ::string to a char* that has different content.
  EXPECT_FATAL_FAILURE({  // NOLINT
    ASSERT_EQ(::string("bar"), const_cast<char*>("foo"));
  }, "");
}

#endif  // GTEST_HAS_GLOBAL_STRING

#if GTEST_HAS_GLOBAL_WSTRING

// Tests using ::wstring values in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, GlobalWideString) {
  // Compares two identical ::wstrings.
  static const ::wstring wstr1(L"A * in the middle");
  static const ::wstring wstr2(wstr1);
  EXPECT_EQ(wstr1, wstr2);

  // Compares a const wchar_t* to a ::wstring that has identical content.
  const wchar_t kTestX8119[] = { 'T', 'e', 's', 't', 0x8119, '\0' };
  ASSERT_EQ(kTestX8119, ::wstring(kTestX8119));

  // Compares a const wchar_t* to a ::wstring that has different
  // content.
  const wchar_t kTestX8120[] = { 'T', 'e', 's', 't', 0x8120, '\0' };
  EXPECT_NONFATAL_FAILURE({  // NOLINT
    EXPECT_EQ(kTestX8120, ::wstring(kTestX8119));
  }, "Test\\x8119");

  // Compares a wchar_t* to a ::wstring that has different content.
  wchar_t* const p1 = const_cast<wchar_t*>(L"foo");
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(p1, ::wstring(L"bar")),
                          "bar");

  // Compares two ::wstrings that have different contents, one of which
  // having a NUL character in the middle.
  static ::wstring wstr3;
  wstr3 = wstr1;
  wstr3.at(2) = L'\0';
  EXPECT_FATAL_FAILURE(ASSERT_EQ(wstr1, wstr3),
                       "wstr3");
}

#endif  // GTEST_HAS_GLOBAL_WSTRING

// Tests using char pointers in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, CharPointer) {
  char* const p0 = NULL;
  // Only way to get the Nokia compiler to compile the cast
  // is to have a separate void* variable first. Putting
  // the two casts on the same line doesn't work, neither does
  // a direct C-style to char*.
  void* pv1 = (void*)0x1234;  // NOLINT
  void* pv2 = (void*)0xABC0;  // NOLINT
  char* const p1 = reinterpret_cast<char*>(pv1);
  char* const p2 = reinterpret_cast<char*>(pv2);
  ASSERT_EQ(p1, p1);

  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(p0, p2),
                          "Value of: p2");
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(p1, p2),
                          "p2");
  EXPECT_FATAL_FAILURE(ASSERT_EQ(reinterpret_cast<char*>(0x1234),
                                 reinterpret_cast<char*>(0xABC0)),
                       "ABC0");
}

// Tests using wchar_t pointers in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, WideCharPointer) {
  wchar_t* const p0 = NULL;
  // Only way to get the Nokia compiler to compile the cast
  // is to have a separate void* variable first. Putting
  // the two casts on the same line doesn't work, neither does
  // a direct C-style to char*.
  void* pv1 = (void*)0x1234;  // NOLINT
  void* pv2 = (void*)0xABC0;  // NOLINT
  wchar_t* const p1 = reinterpret_cast<wchar_t*>(pv1);
  wchar_t* const p2 = reinterpret_cast<wchar_t*>(pv2);
  EXPECT_EQ(p0, p0);

  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(p0, p2),
                          "Value of: p2");
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(p1, p2),
                          "p2");
  void* pv3 = (void*)0x1234;  // NOLINT
  void* pv4 = (void*)0xABC0;  // NOLINT
  const wchar_t* p3 = reinterpret_cast<const wchar_t*>(pv3);
  const wchar_t* p4 = reinterpret_cast<const wchar_t*>(pv4);
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(p3, p4),
                          "p4");
}

// Tests using other types of pointers in {EXPECT|ASSERT}_EQ.
TEST(EqAssertionTest, OtherPointer) {
  ASSERT_EQ(static_cast<const int*>(NULL),
            static_cast<const int*>(NULL));
  EXPECT_FATAL_FAILURE(ASSERT_EQ(static_cast<const int*>(NULL),
                                 reinterpret_cast<const int*>(0x1234)),
                       "0x1234");
}

// A class that supports binary comparison operators but not streaming.
class UnprintableChar {
 public:
  explicit UnprintableChar(char ch) : char_(ch) {}

  bool operator==(const UnprintableChar& rhs) const {
    return char_ == rhs.char_;
  }
  bool operator!=(const UnprintableChar& rhs) const {
    return char_ != rhs.char_;
  }
  bool operator<(const UnprintableChar& rhs) const {
    return char_ < rhs.char_;
  }
  bool operator<=(const UnprintableChar& rhs) const {
    return char_ <= rhs.char_;
  }
  bool operator>(const UnprintableChar& rhs) const {
    return char_ > rhs.char_;
  }
  bool operator>=(const UnprintableChar& rhs) const {
    return char_ >= rhs.char_;
  }

 private:
  char char_;
};

// Tests that ASSERT_EQ() and friends don't require the arguments to
// be printable.
TEST(ComparisonAssertionTest, AcceptsUnprintableArgs) {
  const UnprintableChar x('x'), y('y');
  ASSERT_EQ(x, x);
  EXPECT_NE(x, y);
  ASSERT_LT(x, y);
  EXPECT_LE(x, y);
  ASSERT_GT(y, x);
  EXPECT_GE(x, x);

  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(x, y), "1-byte object <78>");
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(x, y), "1-byte object <79>");
  EXPECT_NONFATAL_FAILURE(EXPECT_LT(y, y), "1-byte object <79>");
  EXPECT_NONFATAL_FAILURE(EXPECT_GT(x, y), "1-byte object <78>");
  EXPECT_NONFATAL_FAILURE(EXPECT_GT(x, y), "1-byte object <79>");

  // Code tested by EXPECT_FATAL_FAILURE cannot reference local
  // variables, so we have to write UnprintableChar('x') instead of x.
#ifndef __BORLANDC__
  // ICE's in C++Builder.
  EXPECT_FATAL_FAILURE(ASSERT_NE(UnprintableChar('x'), UnprintableChar('x')),
                       "1-byte object <78>");
  EXPECT_FATAL_FAILURE(ASSERT_LE(UnprintableChar('y'), UnprintableChar('x')),
                       "1-byte object <78>");
#endif
  EXPECT_FATAL_FAILURE(ASSERT_LE(UnprintableChar('y'), UnprintableChar('x')),
                       "1-byte object <79>");
  EXPECT_FATAL_FAILURE(ASSERT_GE(UnprintableChar('x'), UnprintableChar('y')),
                       "1-byte object <78>");
  EXPECT_FATAL_FAILURE(ASSERT_GE(UnprintableChar('x'), UnprintableChar('y')),
                       "1-byte object <79>");
}

// Tests the FRIEND_TEST macro.

// This class has a private member we want to test.  We will test it
// both in a TEST and in a TEST_F.
class Foo {
 public:
  Foo() {}

 private:
  int Bar() const { return 1; }

  // Declares the friend tests that can access the private member
  // Bar().
  FRIEND_TEST(FRIEND_TEST_Test, TEST);
  FRIEND_TEST(FRIEND_TEST_Test2, TEST_F);
};

// Tests that the FRIEND_TEST declaration allows a TEST to access a
// class's private members.  This should compile.
TEST(FRIEND_TEST_Test, TEST) {
  ASSERT_EQ(1, Foo().Bar());
}

// The fixture needed to test using FRIEND_TEST with TEST_F.
class FRIEND_TEST_Test2 : public Test {
 protected:
  Foo foo;
};

// Tests that the FRIEND_TEST declaration allows a TEST_F to access a
// class's private members.  This should compile.
TEST_F(FRIEND_TEST_Test2, TEST_F) {
  ASSERT_EQ(1, foo.Bar());
}

// Tests the life cycle of Test objects.

// The test fixture for testing the life cycle of Test objects.
//
// This class counts the number of live test objects that uses this
// fixture.
class TestLifeCycleTest : public Test {
 protected:
  // Constructor.  Increments the number of test objects that uses
  // this fixture.
  TestLifeCycleTest() { count_++; }

  // Destructor.  Decrements the number of test objects that uses this
  // fixture.
  ~TestLifeCycleTest() { count_--; }

  // Returns the number of live test objects that uses this fixture.
  int count() const { return count_; }

 private:
  static int count_;
};

int TestLifeCycleTest::count_ = 0;

// Tests the life cycle of test objects.
TEST_F(TestLifeCycleTest, Test1) {
  // There should be only one test object in this test case that's
  // currently alive.
  ASSERT_EQ(1, count());
}

// Tests the life cycle of test objects.
TEST_F(TestLifeCycleTest, Test2) {
  // After Test1 is done and Test2 is started, there should still be
  // only one live test object, as the object for Test1 should've been
  // deleted.
  ASSERT_EQ(1, count());
}

}  // namespace

// Tests that the copy constructor works when it is NOT optimized away by
// the compiler.
TEST(AssertionResultTest, CopyConstructorWorksWhenNotOptimied) {
  // Checks that the copy constructor doesn't try to dereference NULL pointers
  // in the source object.
  AssertionResult r1 = AssertionSuccess();
  AssertionResult r2 = r1;
  // The following line is added to prevent the compiler from optimizing
  // away the constructor call.
  r1 << "abc";

  AssertionResult r3 = r1;
  EXPECT_EQ(static_cast<bool>(r3), static_cast<bool>(r1));
  EXPECT_STREQ("abc", r1.message());
}

// Tests that AssertionSuccess and AssertionFailure construct
// AssertionResult objects as expected.
TEST(AssertionResultTest, ConstructionWorks) {
  AssertionResult r1 = AssertionSuccess();
  EXPECT_TRUE(r1);
  EXPECT_STREQ("", r1.message());

  AssertionResult r2 = AssertionSuccess() << "abc";
  EXPECT_TRUE(r2);
  EXPECT_STREQ("abc", r2.message());

  AssertionResult r3 = AssertionFailure();
  EXPECT_FALSE(r3);
  EXPECT_STREQ("", r3.message());

  AssertionResult r4 = AssertionFailure() << "def";
  EXPECT_FALSE(r4);
  EXPECT_STREQ("def", r4.message());

  AssertionResult r5 = AssertionFailure(Message() << "ghi");
  EXPECT_FALSE(r5);
  EXPECT_STREQ("ghi", r5.message());
}

// Tests that the negation flips the predicate result but keeps the message.
TEST(AssertionResultTest, NegationWorks) {
  AssertionResult r1 = AssertionSuccess() << "abc";
  EXPECT_FALSE(!r1);
  EXPECT_STREQ("abc", (!r1).message());

  AssertionResult r2 = AssertionFailure() << "def";
  EXPECT_TRUE(!r2);
  EXPECT_STREQ("def", (!r2).message());
}

TEST(AssertionResultTest, StreamingWorks) {
  AssertionResult r = AssertionSuccess();
  r << "abc" << 'd' << 0 << true;
  EXPECT_STREQ("abcd0true", r.message());
}

TEST(AssertionResultTest, CanStreamOstreamManipulators) {
  AssertionResult r = AssertionSuccess();
  r << "Data" << std::endl << std::flush << std::ends << "Will be visible";
  EXPECT_STREQ("Data\n\\0Will be visible", r.message());
}

// Tests streaming a user type whose definition and operator << are
// both in the global namespace.
class Base {
 public:
  explicit Base(int an_x) : x_(an_x) {}
  int x() const { return x_; }
 private:
  int x_;
};
std::ostream& operator<<(std::ostream& os,
                         const Base& val) {
  return os << val.x();
}
std::ostream& operator<<(std::ostream& os,
                         const Base* pointer) {
  return os << "(" << pointer->x() << ")";
}

TEST(MessageTest, CanStreamUserTypeInGlobalNameSpace) {
  Message msg;
  Base a(1);

  msg << a << &a;  // Uses ::operator<<.
  EXPECT_STREQ("1(1)", msg.GetString().c_str());
}

// Tests streaming a user type whose definition and operator<< are
// both in an unnamed namespace.
namespace {
class MyTypeInUnnamedNameSpace : public Base {
 public:
  explicit MyTypeInUnnamedNameSpace(int an_x): Base(an_x) {}
};
std::ostream& operator<<(std::ostream& os,
                         const MyTypeInUnnamedNameSpace& val) {
  return os << val.x();
}
std::ostream& operator<<(std::ostream& os,
                         const MyTypeInUnnamedNameSpace* pointer) {
  return os << "(" << pointer->x() << ")";
}
}  // namespace

TEST(MessageTest, CanStreamUserTypeInUnnamedNameSpace) {
  Message msg;
  MyTypeInUnnamedNameSpace a(1);

  msg << a << &a;  // Uses <unnamed_namespace>::operator<<.
  EXPECT_STREQ("1(1)", msg.GetString().c_str());
}

// Tests streaming a user type whose definition and operator<< are
// both in a user namespace.
namespace namespace1 {
class MyTypeInNameSpace1 : public Base {
 public:
  explicit MyTypeInNameSpace1(int an_x): Base(an_x) {}
};
std::ostream& operator<<(std::ostream& os,
                         const MyTypeInNameSpace1& val) {
  return os << val.x();
}
std::ostream& operator<<(std::ostream& os,
                         const MyTypeInNameSpace1* pointer) {
  return os << "(" << pointer->x() << ")";
}
}  // namespace namespace1

TEST(MessageTest, CanStreamUserTypeInUserNameSpace) {
  Message msg;
  namespace1::MyTypeInNameSpace1 a(1);

  msg << a << &a;  // Uses namespace1::operator<<.
  EXPECT_STREQ("1(1)", msg.GetString().c_str());
}

// Tests streaming a user type whose definition is in a user namespace
// but whose operator<< is in the global namespace.
namespace namespace2 {
class MyTypeInNameSpace2 : public ::Base {
 public:
  explicit MyTypeInNameSpace2(int an_x): Base(an_x) {}
};
}  // namespace namespace2
std::ostream& operator<<(std::ostream& os,
                         const namespace2::MyTypeInNameSpace2& val) {
  return os << val.x();
}
std::ostream& operator<<(std::ostream& os,
                         const namespace2::MyTypeInNameSpace2* pointer) {
  return os << "(" << pointer->x() << ")";
}

TEST(MessageTest, CanStreamUserTypeInUserNameSpaceWithStreamOperatorInGlobal) {
  Message msg;
  namespace2::MyTypeInNameSpace2 a(1);

  msg << a << &a;  // Uses ::operator<<.
  EXPECT_STREQ("1(1)", msg.GetString().c_str());
}

// Tests streaming NULL pointers to testing::Message.
TEST(MessageTest, NullPointers) {
  Message msg;
  char* const p1 = NULL;
  unsigned char* const p2 = NULL;
  int* p3 = NULL;
  double* p4 = NULL;
  bool* p5 = NULL;
  Message* p6 = NULL;

  msg << p1 << p2 << p3 << p4 << p5 << p6;
  ASSERT_STREQ("(null)(null)(null)(null)(null)(null)",
               msg.GetString().c_str());
}

// Tests streaming wide strings to testing::Message.
TEST(MessageTest, WideStrings) {
  // Streams a NULL of type const wchar_t*.
  const wchar_t* const_wstr = NULL;
  EXPECT_STREQ("(null)",
               (Message() << const_wstr).GetString().c_str());

  // Streams a NULL of type wchar_t*.
  wchar_t* wstr = NULL;
  EXPECT_STREQ("(null)",
               (Message() << wstr).GetString().c_str());

  // Streams a non-NULL of type const wchar_t*.
  const_wstr = L"abc\x8119";
  EXPECT_STREQ("abc\xe8\x84\x99",
               (Message() << const_wstr).GetString().c_str());

  // Streams a non-NULL of type wchar_t*.
  wstr = const_cast<wchar_t*>(const_wstr);
  EXPECT_STREQ("abc\xe8\x84\x99",
               (Message() << wstr).GetString().c_str());
}


// This line tests that we can define tests in the testing namespace.
namespace testing {

// Tests the TestInfo class.

class TestInfoTest : public Test {
 protected:
  static const TestInfo* GetTestInfo(const char* test_name) {
    const TestCase* const test_case = GetUnitTestImpl()->
        GetTestCase("TestInfoTest", "", NULL, NULL);

    for (int i = 0; i < test_case->total_test_count(); ++i) {
      const TestInfo* const test_info = test_case->GetTestInfo(i);
      if (strcmp(test_name, test_info->name()) == 0)
        return test_info;
    }
    return NULL;
  }

  static const TestResult* GetTestResult(
      const TestInfo* test_info) {
    return test_info->result();
  }
};

// Tests TestInfo::test_case_name() and TestInfo::name().
TEST_F(TestInfoTest, Names) {
  const TestInfo* const test_info = GetTestInfo("Names");

  ASSERT_STREQ("TestInfoTest", test_info->test_case_name());
  ASSERT_STREQ("Names", test_info->name());
}

// Tests TestInfo::result().
TEST_F(TestInfoTest, result) {
  const TestInfo* const test_info = GetTestInfo("result");

  // Initially, there is no TestPartResult for this test.
  ASSERT_EQ(0, GetTestResult(test_info)->total_part_count());

  // After the previous assertion, there is still none.
  ASSERT_EQ(0, GetTestResult(test_info)->total_part_count());
}

// Tests setting up and tearing down a test case.

class SetUpTestCaseTest : public Test {
 protected:
  // This will be called once before the first test in this test case
  // is run.
  static void SetUpTestCase() {
    printf("Setting up the test case . . .\n");

    // Initializes some shared resource.  In this simple example, we
    // just create a C string.  More complex stuff can be done if
    // desired.
    shared_resource_ = "123";

    // Increments the number of test cases that have been set up.
    counter_++;

    // SetUpTestCase() should be called only once.
    EXPECT_EQ(1, counter_);
  }

  // This will be called once after the last test in this test case is
  // run.
  static void TearDownTestCase() {
    printf("Tearing down the test case . . .\n");

    // Decrements the number of test cases that have been set up.
    counter_--;

    // TearDownTestCase() should be called only once.
    EXPECT_EQ(0, counter_);

    // Cleans up the shared resource.
    shared_resource_ = NULL;
  }

  // This will be called before each test in this test case.
  virtual void SetUp() {
    // SetUpTestCase() should be called only once, so counter_ should
    // always be 1.
    EXPECT_EQ(1, counter_);
  }

  // Number of test cases that have been set up.
  static int counter_;

  // Some resource to be shared by all tests in this test case.
  static const char* shared_resource_;
};

int SetUpTestCaseTest::counter_ = 0;
const char* SetUpTestCaseTest::shared_resource_ = NULL;

// A test that uses the shared resource.
TEST_F(SetUpTestCaseTest, Test1) {
  EXPECT_STRNE(NULL, shared_resource_);
}

// Another test that uses the shared resource.
TEST_F(SetUpTestCaseTest, Test2) {
  EXPECT_STREQ("123", shared_resource_);
}

// The InitGoogleTestTest test case tests testing::InitGoogleTest().

// The Flags struct stores a copy of all Google Test flags.
struct Flags {
  // Constructs a Flags struct where each flag has its default value.
  Flags() : also_run_disabled_tests(false),
            break_on_failure(false),
            catch_exceptions(false),
            death_test_use_fork(false),
            filter(""),
            list_tests(false),
            output(""),
            print_time(true),
            random_seed(0),
            repeat(1),
            shuffle(false),
            stack_trace_depth(kMaxStackTraceDepth),
            stream_result_to(""),
            throw_on_failure(false) {}

  // Factory methods.

  // Creates a Flags struct where the gtest_also_run_disabled_tests flag has
  // the given value.
  static Flags AlsoRunDisabledTests(bool also_run_disabled_tests) {
    Flags flags;
    flags.also_run_disabled_tests = also_run_disabled_tests;
    return flags;
  }

  // Creates a Flags struct where the gtest_break_on_failure flag has
  // the given value.
  static Flags BreakOnFailure(bool break_on_failure) {
    Flags flags;
    flags.break_on_failure = break_on_failure;
    return flags;
  }

  // Creates a Flags struct where the gtest_catch_exceptions flag has
  // the given value.
  static Flags CatchExceptions(bool catch_exceptions) {
    Flags flags;
    flags.catch_exceptions = catch_exceptions;
    return flags;
  }

  // Creates a Flags struct where the gtest_death_test_use_fork flag has
  // the given value.
  static Flags DeathTestUseFork(bool death_test_use_fork) {
    Flags flags;
    flags.death_test_use_fork = death_test_use_fork;
    return flags;
  }

  // Creates a Flags struct where the gtest_filter flag has the given
  // value.
  static Flags Filter(const char* filter) {
    Flags flags;
    flags.filter = filter;
    return flags;
  }

  // Creates a Flags struct where the gtest_list_tests flag has the
  // given value.
  static Flags ListTests(bool list_tests) {
    Flags flags;
    flags.list_tests = list_tests;
    return flags;
  }

  // Creates a Flags struct where the gtest_output flag has the given
  // value.
  static Flags Output(const char* output) {
    Flags flags;
    flags.output = output;
    return flags;
  }

  // Creates a Flags struct where the gtest_print_time flag has the given
  // value.
  static Flags PrintTime(bool print_time) {
    Flags flags;
    flags.print_time = print_time;
    return flags;
  }

  // Creates a Flags struct where the gtest_random_seed flag has
  // the given value.
  static Flags RandomSeed(Int32 random_seed) {
    Flags flags;
    flags.random_seed = random_seed;
    return flags;
  }

  // Creates a Flags struct where the gtest_repeat flag has the given
  // value.
  static Flags Repeat(Int32 repeat) {
    Flags flags;
    flags.repeat = repeat;
    return flags;
  }

  // Creates a Flags struct where the gtest_shuffle flag has
  // the given value.
  static Flags Shuffle(bool shuffle) {
    Flags flags;
    flags.shuffle = shuffle;
    return flags;
  }

  // Creates a Flags struct where the GTEST_FLAG(stack_trace_depth) flag has
  // the given value.
  static Flags StackTraceDepth(Int32 stack_trace_depth) {
    Flags flags;
    flags.stack_trace_depth = stack_trace_depth;
    return flags;
  }

  // Creates a Flags struct where the GTEST_FLAG(stream_result_to) flag has
  // the given value.
  static Flags StreamResultTo(const char* stream_result_to) {
    Flags flags;
    flags.stream_result_to = stream_result_to;
    return flags;
  }

  // Creates a Flags struct where the gtest_throw_on_failure flag has
  // the given value.
  static Flags ThrowOnFailure(bool throw_on_failure) {
    Flags flags;
    flags.throw_on_failure = throw_on_failure;
    return flags;
  }

  // These fields store the flag values.
  bool also_run_disabled_tests;
  bool break_on_failure;
  bool catch_exceptions;
  bool death_test_use_fork;
  const char* filter;
  bool list_tests;
  const char* output;
  bool print_time;
  Int32 random_seed;
  Int32 repeat;
  bool shuffle;
  Int32 stack_trace_depth;
  const char* stream_result_to;
  bool throw_on_failure;
};

// Fixture for testing InitGoogleTest().
class InitGoogleTestTest : public Test {
 protected:
  // Clears the flags before each test.
  virtual void SetUp() {
    GTEST_FLAG(also_run_disabled_tests) = false;
    GTEST_FLAG(break_on_failure) = false;
    GTEST_FLAG(catch_exceptions) = false;
    GTEST_FLAG(death_test_use_fork) = false;
    GTEST_FLAG(filter) = "";
    GTEST_FLAG(list_tests) = false;
    GTEST_FLAG(output) = "";
    GTEST_FLAG(print_time) = true;
    GTEST_FLAG(random_seed) = 0;
    GTEST_FLAG(repeat) = 1;
    GTEST_FLAG(shuffle) = false;
    GTEST_FLAG(stack_trace_depth) = kMaxStackTraceDepth;
    GTEST_FLAG(stream_result_to) = "";
    GTEST_FLAG(throw_on_failure) = false;
  }

  // Asserts that two narrow or wide string arrays are equal.
  template <typename CharType>
  static void AssertStringArrayEq(size_t size1, CharType** array1,
                                  size_t size2, CharType** array2) {
    ASSERT_EQ(size1, size2) << " Array sizes different.";

    for (size_t i = 0; i != size1; i++) {
      ASSERT_STREQ(array1[i], array2[i]) << " where i == " << i;
    }
  }

  // Verifies that the flag values match the expected values.
  static void CheckFlags(const Flags& expected) {
    EXPECT_EQ(expected.also_run_disabled_tests,
              GTEST_FLAG(also_run_disabled_tests));
    EXPECT_EQ(expected.break_on_failure, GTEST_FLAG(break_on_failure));
    EXPECT_EQ(expected.catch_exceptions, GTEST_FLAG(catch_exceptions));
    EXPECT_EQ(expected.death_test_use_fork, GTEST_FLAG(death_test_use_fork));
    EXPECT_STREQ(expected.filter, GTEST_FLAG(filter).c_str());
    EXPECT_EQ(expected.list_tests, GTEST_FLAG(list_tests));
    EXPECT_STREQ(expected.output, GTEST_FLAG(output).c_str());
    EXPECT_EQ(expected.print_time, GTEST_FLAG(print_time));
    EXPECT_EQ(expected.random_seed, GTEST_FLAG(random_seed));
    EXPECT_EQ(expected.repeat, GTEST_FLAG(repeat));
    EXPECT_EQ(expected.shuffle, GTEST_FLAG(shuffle));
    EXPECT_EQ(expected.stack_trace_depth, GTEST_FLAG(stack_trace_depth));
    EXPECT_STREQ(expected.stream_result_to,
                 GTEST_FLAG(stream_result_to).c_str());
    EXPECT_EQ(expected.throw_on_failure, GTEST_FLAG(throw_on_failure));
  }

  // Parses a command line (specified by argc1 and argv1), then
  // verifies that the flag values are expected and that the
  // recognized flags are removed from the command line.
  template <typename CharType>
  static void TestParsingFlags(int argc1, const CharType** argv1,
                               int argc2, const CharType** argv2,
                               const Flags& expected, bool should_print_help) {
    const bool saved_help_flag = ::testing::internal::g_help_flag;
    ::testing::internal::g_help_flag = false;

#if GTEST_HAS_STREAM_REDIRECTION
    CaptureStdout();
#endif

    // Parses the command line.
    internal::ParseGoogleTestFlagsOnly(&argc1, const_cast<CharType**>(argv1));

#if GTEST_HAS_STREAM_REDIRECTION
    const String captured_stdout = GetCapturedStdout();
#endif

    // Verifies the flag values.
    CheckFlags(expected);

    // Verifies that the recognized flags are removed from the command
    // line.
    AssertStringArrayEq(argc1 + 1, argv1, argc2 + 1, argv2);

    // ParseGoogleTestFlagsOnly should neither set g_help_flag nor print the
    // help message for the flags it recognizes.
    EXPECT_EQ(should_print_help, ::testing::internal::g_help_flag);

#if GTEST_HAS_STREAM_REDIRECTION
    const char* const expected_help_fragment =
        "This program contains tests written using";
    if (should_print_help) {
      EXPECT_PRED_FORMAT2(IsSubstring, expected_help_fragment, captured_stdout);
    } else {
      EXPECT_PRED_FORMAT2(IsNotSubstring,
                          expected_help_fragment, captured_stdout);
    }
#endif  // GTEST_HAS_STREAM_REDIRECTION

    ::testing::internal::g_help_flag = saved_help_flag;
  }

  // This macro wraps TestParsingFlags s.t. the user doesn't need
  // to specify the array sizes.

#define GTEST_TEST_PARSING_FLAGS_(argv1, argv2, expected, should_print_help) \
  TestParsingFlags(sizeof(argv1)/sizeof(*argv1) - 1, argv1, \
                   sizeof(argv2)/sizeof(*argv2) - 1, argv2, \
                   expected, should_print_help)
};

// Tests parsing an empty command line.
TEST_F(InitGoogleTestTest, Empty) {
  const char* argv[] = {
    NULL
  };

  const char* argv2[] = {
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags(), false);
}

// Tests parsing a command line that has no flag.
TEST_F(InitGoogleTestTest, NoFlag) {
  const char* argv[] = {
    "foo.exe",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags(), false);
}

// Tests parsing a bad --gtest_filter flag.
TEST_F(InitGoogleTestTest, FilterBad) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_filter",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    "--gtest_filter",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Filter(""), true);
}

// Tests parsing an empty --gtest_filter flag.
TEST_F(InitGoogleTestTest, FilterEmpty) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_filter=",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Filter(""), false);
}

// Tests parsing a non-empty --gtest_filter flag.
TEST_F(InitGoogleTestTest, FilterNonEmpty) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_filter=abc",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Filter("abc"), false);
}

// Tests parsing --gtest_break_on_failure.
TEST_F(InitGoogleTestTest, BreakOnFailureWithoutValue) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_break_on_failure",
    NULL
};

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::BreakOnFailure(true), false);
}

// Tests parsing --gtest_break_on_failure=0.
TEST_F(InitGoogleTestTest, BreakOnFailureFalse_0) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_break_on_failure=0",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::BreakOnFailure(false), false);
}

// Tests parsing --gtest_break_on_failure=f.
TEST_F(InitGoogleTestTest, BreakOnFailureFalse_f) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_break_on_failure=f",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::BreakOnFailure(false), false);
}

// Tests parsing --gtest_break_on_failure=F.
TEST_F(InitGoogleTestTest, BreakOnFailureFalse_F) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_break_on_failure=F",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::BreakOnFailure(false), false);
}

// Tests parsing a --gtest_break_on_failure flag that has a "true"
// definition.
TEST_F(InitGoogleTestTest, BreakOnFailureTrue) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_break_on_failure=1",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::BreakOnFailure(true), false);
}

// Tests parsing --gtest_catch_exceptions.
TEST_F(InitGoogleTestTest, CatchExceptions) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_catch_exceptions",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::CatchExceptions(true), false);
}

// Tests parsing --gtest_death_test_use_fork.
TEST_F(InitGoogleTestTest, DeathTestUseFork) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_death_test_use_fork",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::DeathTestUseFork(true), false);
}

// Tests having the same flag twice with different values.  The
// expected behavior is that the one coming last takes precedence.
TEST_F(InitGoogleTestTest, DuplicatedFlags) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_filter=a",
    "--gtest_filter=b",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Filter("b"), false);
}

// Tests having an unrecognized flag on the command line.
TEST_F(InitGoogleTestTest, UnrecognizedFlag) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_break_on_failure",
    "bar",  // Unrecognized by Google Test.
    "--gtest_filter=b",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    "bar",
    NULL
  };

  Flags flags;
  flags.break_on_failure = true;
  flags.filter = "b";
  GTEST_TEST_PARSING_FLAGS_(argv, argv2, flags, false);
}

// Tests having a --gtest_list_tests flag
TEST_F(InitGoogleTestTest, ListTestsFlag) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_list_tests",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::ListTests(true), false);
}

// Tests having a --gtest_list_tests flag with a "true" value
TEST_F(InitGoogleTestTest, ListTestsTrue) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_list_tests=1",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::ListTests(true), false);
}

// Tests having a --gtest_list_tests flag with a "false" value
TEST_F(InitGoogleTestTest, ListTestsFalse) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_list_tests=0",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::ListTests(false), false);
}

// Tests parsing --gtest_list_tests=f.
TEST_F(InitGoogleTestTest, ListTestsFalse_f) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_list_tests=f",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::ListTests(false), false);
}

// Tests parsing --gtest_list_tests=F.
TEST_F(InitGoogleTestTest, ListTestsFalse_F) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_list_tests=F",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::ListTests(false), false);
}

// Tests parsing --gtest_output (invalid).
TEST_F(InitGoogleTestTest, OutputEmpty) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_output",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    "--gtest_output",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags(), true);
}

// Tests parsing --gtest_output=xml
TEST_F(InitGoogleTestTest, OutputXml) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_output=xml",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Output("xml"), false);
}

// Tests parsing --gtest_output=xml:file
TEST_F(InitGoogleTestTest, OutputXmlFile) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_output=xml:file",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Output("xml:file"), false);
}

// Tests parsing --gtest_output=xml:directory/path/
TEST_F(InitGoogleTestTest, OutputXmlDirectory) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_output=xml:directory/path/",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2,
                            Flags::Output("xml:directory/path/"), false);
}

// Tests having a --gtest_print_time flag
TEST_F(InitGoogleTestTest, PrintTimeFlag) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_print_time",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::PrintTime(true), false);
}

// Tests having a --gtest_print_time flag with a "true" value
TEST_F(InitGoogleTestTest, PrintTimeTrue) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_print_time=1",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::PrintTime(true), false);
}

// Tests having a --gtest_print_time flag with a "false" value
TEST_F(InitGoogleTestTest, PrintTimeFalse) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_print_time=0",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::PrintTime(false), false);
}

// Tests parsing --gtest_print_time=f.
TEST_F(InitGoogleTestTest, PrintTimeFalse_f) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_print_time=f",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::PrintTime(false), false);
}

// Tests parsing --gtest_print_time=F.
TEST_F(InitGoogleTestTest, PrintTimeFalse_F) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_print_time=F",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::PrintTime(false), false);
}

// Tests parsing --gtest_random_seed=number
TEST_F(InitGoogleTestTest, RandomSeed) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_random_seed=1000",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::RandomSeed(1000), false);
}

// Tests parsing --gtest_repeat=number
TEST_F(InitGoogleTestTest, Repeat) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_repeat=1000",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Repeat(1000), false);
}

// Tests having a --gtest_also_run_disabled_tests flag
TEST_F(InitGoogleTestTest, AlsoRunDisabledTestsFlag) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_also_run_disabled_tests",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2,
                              Flags::AlsoRunDisabledTests(true), false);
}

// Tests having a --gtest_also_run_disabled_tests flag with a "true" value
TEST_F(InitGoogleTestTest, AlsoRunDisabledTestsTrue) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_also_run_disabled_tests=1",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2,
                              Flags::AlsoRunDisabledTests(true), false);
}

// Tests having a --gtest_also_run_disabled_tests flag with a "false" value
TEST_F(InitGoogleTestTest, AlsoRunDisabledTestsFalse) {
    const char* argv[] = {
      "foo.exe",
      "--gtest_also_run_disabled_tests=0",
      NULL
    };

    const char* argv2[] = {
      "foo.exe",
      NULL
    };

    GTEST_TEST_PARSING_FLAGS_(argv, argv2,
                              Flags::AlsoRunDisabledTests(false), false);
}

// Tests parsing --gtest_shuffle.
TEST_F(InitGoogleTestTest, ShuffleWithoutValue) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_shuffle",
    NULL
};

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Shuffle(true), false);
}

// Tests parsing --gtest_shuffle=0.
TEST_F(InitGoogleTestTest, ShuffleFalse_0) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_shuffle=0",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Shuffle(false), false);
}

// Tests parsing a --gtest_shuffle flag that has a "true"
// definition.
TEST_F(InitGoogleTestTest, ShuffleTrue) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_shuffle=1",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::Shuffle(true), false);
}

// Tests parsing --gtest_stack_trace_depth=number.
TEST_F(InitGoogleTestTest, StackTraceDepth) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_stack_trace_depth=5",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::StackTraceDepth(5), false);
}

TEST_F(InitGoogleTestTest, StreamResultTo) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_stream_result_to=localhost:1234",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(
      argv, argv2, Flags::StreamResultTo("localhost:1234"), false);
}

// Tests parsing --gtest_throw_on_failure.
TEST_F(InitGoogleTestTest, ThrowOnFailureWithoutValue) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_throw_on_failure",
    NULL
};

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::ThrowOnFailure(true), false);
}

// Tests parsing --gtest_throw_on_failure=0.
TEST_F(InitGoogleTestTest, ThrowOnFailureFalse_0) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_throw_on_failure=0",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::ThrowOnFailure(false), false);
}

// Tests parsing a --gtest_throw_on_failure flag that has a "true"
// definition.
TEST_F(InitGoogleTestTest, ThrowOnFailureTrue) {
  const char* argv[] = {
    "foo.exe",
    "--gtest_throw_on_failure=1",
    NULL
  };

  const char* argv2[] = {
    "foo.exe",
    NULL
  };

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, Flags::ThrowOnFailure(true), false);
}

#if GTEST_OS_WINDOWS
// Tests parsing wide strings.
TEST_F(InitGoogleTestTest, WideStrings) {
  const wchar_t* argv[] = {
    L"foo.exe",
    L"--gtest_filter=Foo*",
    L"--gtest_list_tests=1",
    L"--gtest_break_on_failure",
    L"--non_gtest_flag",
    NULL
  };

  const wchar_t* argv2[] = {
    L"foo.exe",
    L"--non_gtest_flag",
    NULL
  };

  Flags expected_flags;
  expected_flags.break_on_failure = true;
  expected_flags.filter = "Foo*";
  expected_flags.list_tests = true;

  GTEST_TEST_PARSING_FLAGS_(argv, argv2, expected_flags, false);
}
#endif  // GTEST_OS_WINDOWS

// Tests current_test_info() in UnitTest.
class CurrentTestInfoTest : public Test {
 protected:
  // Tests that current_test_info() returns NULL before the first test in
  // the test case is run.
  static void SetUpTestCase() {
    // There should be no tests running at this point.
    const TestInfo* test_info =
      UnitTest::GetInstance()->current_test_info();
    EXPECT_TRUE(test_info == NULL)
        << "There should be no tests running at this point.";
  }

  // Tests that current_test_info() returns NULL after the last test in
  // the test case has run.
  static void TearDownTestCase() {
    const TestInfo* test_info =
      UnitTest::GetInstance()->current_test_info();
    EXPECT_TRUE(test_info == NULL)
        << "There should be no tests running at this point.";
  }
};

// Tests that current_test_info() returns TestInfo for currently running
// test by checking the expected test name against the actual one.
TEST_F(CurrentTestInfoTest, WorksForFirstTestInATestCase) {
  const TestInfo* test_info =
    UnitTest::GetInstance()->current_test_info();
  ASSERT_TRUE(NULL != test_info)
      << "There is a test running so we should have a valid TestInfo.";
  EXPECT_STREQ("CurrentTestInfoTest", test_info->test_case_name())
      << "Expected the name of the currently running test case.";
  EXPECT_STREQ("WorksForFirstTestInATestCase", test_info->name())
      << "Expected the name of the currently running test.";
}

// Tests that current_test_info() returns TestInfo for currently running
// test by checking the expected test name against the actual one.  We
// use this test to see that the TestInfo object actually changed from
// the previous invocation.
TEST_F(CurrentTestInfoTest, WorksForSecondTestInATestCase) {
  const TestInfo* test_info =
    UnitTest::GetInstance()->current_test_info();
  ASSERT_TRUE(NULL != test_info)
      << "There is a test running so we should have a valid TestInfo.";
  EXPECT_STREQ("CurrentTestInfoTest", test_info->test_case_name())
      << "Expected the name of the currently running test case.";
  EXPECT_STREQ("WorksForSecondTestInATestCase", test_info->name())
      << "Expected the name of the currently running test.";
}

}  // namespace testing

// These two lines test that we can define tests in a namespace that
// has the name "testing" and is nested in another namespace.
namespace my_namespace {
namespace testing {

// Makes sure that TEST knows to use ::testing::Test instead of
// ::my_namespace::testing::Test.
class Test {};

// Makes sure that an assertion knows to use ::testing::Message instead of
// ::my_namespace::testing::Message.
class Message {};

// Makes sure that an assertion knows to use
// ::testing::AssertionResult instead of
// ::my_namespace::testing::AssertionResult.
class AssertionResult {};

// Tests that an assertion that should succeed works as expected.
TEST(NestedTestingNamespaceTest, Success) {
  EXPECT_EQ(1, 1) << "This shouldn't fail.";
}

// Tests that an assertion that should fail works as expected.
TEST(NestedTestingNamespaceTest, Failure) {
  EXPECT_FATAL_FAILURE(FAIL() << "This failure is expected.",
                       "This failure is expected.");
}

}  // namespace testing
}  // namespace my_namespace

// Tests that one can call superclass SetUp and TearDown methods--
// that is, that they are not private.
// No tests are based on this fixture; the test "passes" if it compiles
// successfully.
class ProtectedFixtureMethodsTest : public Test {
 protected:
  virtual void SetUp() {
    Test::SetUp();
  }
  virtual void TearDown() {
    Test::TearDown();
  }
};

// StreamingAssertionsTest tests the streaming versions of a representative
// sample of assertions.
TEST(StreamingAssertionsTest, Unconditional) {
  SUCCEED() << "expected success";
  EXPECT_NONFATAL_FAILURE(ADD_FAILURE() << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(FAIL() << "expected failure",
                       "expected failure");
}

#ifdef __BORLANDC__
// Silences warnings: "Condition is always true", "Unreachable code"
# pragma option push -w-ccc -w-rch
#endif

TEST(StreamingAssertionsTest, Truth) {
  EXPECT_TRUE(true) << "unexpected failure";
  ASSERT_TRUE(true) << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_TRUE(false) << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_TRUE(false) << "expected failure",
                       "expected failure");
}

TEST(StreamingAssertionsTest, Truth2) {
  EXPECT_FALSE(false) << "unexpected failure";
  ASSERT_FALSE(false) << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_FALSE(true) << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_FALSE(true) << "expected failure",
                       "expected failure");
}

#ifdef __BORLANDC__
// Restores warnings after previous "#pragma option push" supressed them
# pragma option pop
#endif

TEST(StreamingAssertionsTest, IntegerEquals) {
  EXPECT_EQ(1, 1) << "unexpected failure";
  ASSERT_EQ(1, 1) << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_EQ(1, 2) << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_EQ(1, 2) << "expected failure",
                       "expected failure");
}

TEST(StreamingAssertionsTest, IntegerLessThan) {
  EXPECT_LT(1, 2) << "unexpected failure";
  ASSERT_LT(1, 2) << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_LT(2, 1) << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_LT(2, 1) << "expected failure",
                       "expected failure");
}

TEST(StreamingAssertionsTest, StringsEqual) {
  EXPECT_STREQ("foo", "foo") << "unexpected failure";
  ASSERT_STREQ("foo", "foo") << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_STREQ("foo", "bar") << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_STREQ("foo", "bar") << "expected failure",
                       "expected failure");
}

TEST(StreamingAssertionsTest, StringsNotEqual) {
  EXPECT_STRNE("foo", "bar") << "unexpected failure";
  ASSERT_STRNE("foo", "bar") << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_STRNE("foo", "foo") << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_STRNE("foo", "foo") << "expected failure",
                       "expected failure");
}

TEST(StreamingAssertionsTest, StringsEqualIgnoringCase) {
  EXPECT_STRCASEEQ("foo", "FOO") << "unexpected failure";
  ASSERT_STRCASEEQ("foo", "FOO") << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_STRCASEEQ("foo", "bar") << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_STRCASEEQ("foo", "bar") << "expected failure",
                       "expected failure");
}

TEST(StreamingAssertionsTest, StringNotEqualIgnoringCase) {
  EXPECT_STRCASENE("foo", "bar") << "unexpected failure";
  ASSERT_STRCASENE("foo", "bar") << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_STRCASENE("foo", "FOO") << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_STRCASENE("bar", "BAR") << "expected failure",
                       "expected failure");
}

TEST(StreamingAssertionsTest, FloatingPointEquals) {
  EXPECT_FLOAT_EQ(1.0, 1.0) << "unexpected failure";
  ASSERT_FLOAT_EQ(1.0, 1.0) << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_FLOAT_EQ(0.0, 1.0) << "expected failure",
                          "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_FLOAT_EQ(0.0, 1.0) << "expected failure",
                       "expected failure");
}

#if GTEST_HAS_EXCEPTIONS

TEST(StreamingAssertionsTest, Throw) {
  EXPECT_THROW(ThrowAnInteger(), int) << "unexpected failure";
  ASSERT_THROW(ThrowAnInteger(), int) << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_THROW(ThrowAnInteger(), bool) <<
                          "expected failure", "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_THROW(ThrowAnInteger(), bool) <<
                       "expected failure", "expected failure");
}

TEST(StreamingAssertionsTest, NoThrow) {
  EXPECT_NO_THROW(ThrowNothing()) << "unexpected failure";
  ASSERT_NO_THROW(ThrowNothing()) << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_NO_THROW(ThrowAnInteger()) <<
                          "expected failure", "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_NO_THROW(ThrowAnInteger()) <<
                       "expected failure", "expected failure");
}

TEST(StreamingAssertionsTest, AnyThrow) {
  EXPECT_ANY_THROW(ThrowAnInteger()) << "unexpected failure";
  ASSERT_ANY_THROW(ThrowAnInteger()) << "unexpected failure";
  EXPECT_NONFATAL_FAILURE(EXPECT_ANY_THROW(ThrowNothing()) <<
                          "expected failure", "expected failure");
  EXPECT_FATAL_FAILURE(ASSERT_ANY_THROW(ThrowNothing()) <<
                       "expected failure", "expected failure");
}

#endif  // GTEST_HAS_EXCEPTIONS

// Tests that Google Test correctly decides whether to use colors in the output.

TEST(ColoredOutputTest, UsesColorsWhenGTestColorFlagIsYes) {
  GTEST_FLAG(color) = "yes";

  SetEnv("TERM", "xterm");  // TERM supports colors.
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.
  EXPECT_TRUE(ShouldUseColor(false));  // Stdout is not a TTY.

  SetEnv("TERM", "dumb");  // TERM doesn't support colors.
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.
  EXPECT_TRUE(ShouldUseColor(false));  // Stdout is not a TTY.
}

TEST(ColoredOutputTest, UsesColorsWhenGTestColorFlagIsAliasOfYes) {
  SetEnv("TERM", "dumb");  // TERM doesn't support colors.

  GTEST_FLAG(color) = "True";
  EXPECT_TRUE(ShouldUseColor(false));  // Stdout is not a TTY.

  GTEST_FLAG(color) = "t";
  EXPECT_TRUE(ShouldUseColor(false));  // Stdout is not a TTY.

  GTEST_FLAG(color) = "1";
  EXPECT_TRUE(ShouldUseColor(false));  // Stdout is not a TTY.
}

TEST(ColoredOutputTest, UsesNoColorWhenGTestColorFlagIsNo) {
  GTEST_FLAG(color) = "no";

  SetEnv("TERM", "xterm");  // TERM supports colors.
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.
  EXPECT_FALSE(ShouldUseColor(false));  // Stdout is not a TTY.

  SetEnv("TERM", "dumb");  // TERM doesn't support colors.
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.
  EXPECT_FALSE(ShouldUseColor(false));  // Stdout is not a TTY.
}

TEST(ColoredOutputTest, UsesNoColorWhenGTestColorFlagIsInvalid) {
  SetEnv("TERM", "xterm");  // TERM supports colors.

  GTEST_FLAG(color) = "F";
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.

  GTEST_FLAG(color) = "0";
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.

  GTEST_FLAG(color) = "unknown";
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.
}

TEST(ColoredOutputTest, UsesColorsWhenStdoutIsTty) {
  GTEST_FLAG(color) = "auto";

  SetEnv("TERM", "xterm");  // TERM supports colors.
  EXPECT_FALSE(ShouldUseColor(false));  // Stdout is not a TTY.
  EXPECT_TRUE(ShouldUseColor(true));    // Stdout is a TTY.
}

TEST(ColoredOutputTest, UsesColorsWhenTermSupportsColors) {
  GTEST_FLAG(color) = "auto";

#if GTEST_OS_WINDOWS
  // On Windows, we ignore the TERM variable as it's usually not set.

  SetEnv("TERM", "dumb");
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "");
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "xterm");
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.
#else
  // On non-Windows platforms, we rely on TERM to determine if the
  // terminal supports colors.

  SetEnv("TERM", "dumb");  // TERM doesn't support colors.
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "emacs");  // TERM doesn't support colors.
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "vt100");  // TERM doesn't support colors.
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "xterm-mono");  // TERM doesn't support colors.
  EXPECT_FALSE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "xterm");  // TERM supports colors.
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "xterm-color");  // TERM supports colors.
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "xterm-256color");  // TERM supports colors.
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "screen");  // TERM supports colors.
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "linux");  // TERM supports colors.
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.

  SetEnv("TERM", "cygwin");  // TERM supports colors.
  EXPECT_TRUE(ShouldUseColor(true));  // Stdout is a TTY.
#endif  // GTEST_OS_WINDOWS
}

// Verifies that StaticAssertTypeEq works in a namespace scope.

static bool dummy1 GTEST_ATTRIBUTE_UNUSED_ = StaticAssertTypeEq<bool, bool>();
static bool dummy2 GTEST_ATTRIBUTE_UNUSED_ =
    StaticAssertTypeEq<const int, const int>();

// Verifies that StaticAssertTypeEq works in a class.

template <typename T>
class StaticAssertTypeEqTestHelper {
 public:
  StaticAssertTypeEqTestHelper() { StaticAssertTypeEq<bool, T>(); }
};

TEST(StaticAssertTypeEqTest, WorksInClass) {
  StaticAssertTypeEqTestHelper<bool>();
}

// Verifies that StaticAssertTypeEq works inside a function.

typedef int IntAlias;

TEST(StaticAssertTypeEqTest, CompilesForEqualTypes) {
  StaticAssertTypeEq<int, IntAlias>();
  StaticAssertTypeEq<int*, IntAlias*>();
}

TEST(GetCurrentOsStackTraceExceptTopTest, ReturnsTheStackTrace) {
  testing::UnitTest* const unit_test = testing::UnitTest::GetInstance();

  // We don't have a stack walker in Google Test yet.
  EXPECT_STREQ("", GetCurrentOsStackTraceExceptTop(unit_test, 0).c_str());
  EXPECT_STREQ("", GetCurrentOsStackTraceExceptTop(unit_test, 1).c_str());
}

TEST(HasNonfatalFailureTest, ReturnsFalseWhenThereIsNoFailure) {
  EXPECT_FALSE(HasNonfatalFailure());
}

static void FailFatally() { FAIL(); }

TEST(HasNonfatalFailureTest, ReturnsFalseWhenThereIsOnlyFatalFailure) {
  FailFatally();
  const bool has_nonfatal_failure = HasNonfatalFailure();
  ClearCurrentTestPartResults();
  EXPECT_FALSE(has_nonfatal_failure);
}

TEST(HasNonfatalFailureTest, ReturnsTrueWhenThereIsNonfatalFailure) {
  ADD_FAILURE();
  const bool has_nonfatal_failure = HasNonfatalFailure();
  ClearCurrentTestPartResults();
  EXPECT_TRUE(has_nonfatal_failure);
}

TEST(HasNonfatalFailureTest, ReturnsTrueWhenThereAreFatalAndNonfatalFailures) {
  FailFatally();
  ADD_FAILURE();
  const bool has_nonfatal_failure = HasNonfatalFailure();
  ClearCurrentTestPartResults();
  EXPECT_TRUE(has_nonfatal_failure);
}

// A wrapper for calling HasNonfatalFailure outside of a test body.
static bool HasNonfatalFailureHelper() {
  return testing::Test::HasNonfatalFailure();
}

TEST(HasNonfatalFailureTest, WorksOutsideOfTestBody) {
  EXPECT_FALSE(HasNonfatalFailureHelper());
}

TEST(HasNonfatalFailureTest, WorksOutsideOfTestBody2) {
  ADD_FAILURE();
  const bool has_nonfatal_failure = HasNonfatalFailureHelper();
  ClearCurrentTestPartResults();
  EXPECT_TRUE(has_nonfatal_failure);
}

TEST(HasFailureTest, ReturnsFalseWhenThereIsNoFailure) {
  EXPECT_FALSE(HasFailure());
}

TEST(HasFailureTest, ReturnsTrueWhenThereIsFatalFailure) {
  FailFatally();
  const bool has_failure = HasFailure();
  ClearCurrentTestPartResults();
  EXPECT_TRUE(has_failure);
}

TEST(HasFailureTest, ReturnsTrueWhenThereIsNonfatalFailure) {
  ADD_FAILURE();
  const bool has_failure = HasFailure();
  ClearCurrentTestPartResults();
  EXPECT_TRUE(has_failure);
}

TEST(HasFailureTest, ReturnsTrueWhenThereAreFatalAndNonfatalFailures) {
  FailFatally();
  ADD_FAILURE();
  const bool has_failure = HasFailure();
  ClearCurrentTestPartResults();
  EXPECT_TRUE(has_failure);
}

// A wrapper for calling HasFailure outside of a test body.
static bool HasFailureHelper() { return testing::Test::HasFailure(); }

TEST(HasFailureTest, WorksOutsideOfTestBody) {
  EXPECT_FALSE(HasFailureHelper());
}

TEST(HasFailureTest, WorksOutsideOfTestBody2) {
  ADD_FAILURE();
  const bool has_failure = HasFailureHelper();
  ClearCurrentTestPartResults();
  EXPECT_TRUE(has_failure);
}

class TestListener : public EmptyTestEventListener {
 public:
  TestListener() : on_start_counter_(NULL), is_destroyed_(NULL) {}
  TestListener(int* on_start_counter, bool* is_destroyed)
      : on_start_counter_(on_start_counter),
        is_destroyed_(is_destroyed) {}

  virtual ~TestListener() {
    if (is_destroyed_)
      *is_destroyed_ = true;
  }

 protected:
  virtual void OnTestProgramStart(const UnitTest& /*unit_test*/) {
    if (on_start_counter_ != NULL)
      (*on_start_counter_)++;
  }

 private:
  int* on_start_counter_;
  bool* is_destroyed_;
};

// Tests the constructor.
TEST(TestEventListenersTest, ConstructionWorks) {
  TestEventListeners listeners;

  EXPECT_TRUE(TestEventListenersAccessor::GetRepeater(&listeners) != NULL);
  EXPECT_TRUE(listeners.default_result_printer() == NULL);
  EXPECT_TRUE(listeners.default_xml_generator() == NULL);
}

// Tests that the TestEventListeners destructor deletes all the listeners it
// owns.
TEST(TestEventListenersTest, DestructionWorks) {
  bool default_result_printer_is_destroyed = false;
  bool default_xml_printer_is_destroyed = false;
  bool extra_listener_is_destroyed = false;
  TestListener* default_result_printer = new TestListener(
      NULL, &default_result_printer_is_destroyed);
  TestListener* default_xml_printer = new TestListener(
      NULL, &default_xml_printer_is_destroyed);
  TestListener* extra_listener = new TestListener(
      NULL, &extra_listener_is_destroyed);

  {
    TestEventListeners listeners;
    TestEventListenersAccessor::SetDefaultResultPrinter(&listeners,
                                                        default_result_printer);
    TestEventListenersAccessor::SetDefaultXmlGenerator(&listeners,
                                                       default_xml_printer);
    listeners.Append(extra_listener);
  }
  EXPECT_TRUE(default_result_printer_is_destroyed);
  EXPECT_TRUE(default_xml_printer_is_destroyed);
  EXPECT_TRUE(extra_listener_is_destroyed);
}

// Tests that a listener Append'ed to a TestEventListeners list starts
// receiving events.
TEST(TestEventListenersTest, Append) {
  int on_start_counter = 0;
  bool is_destroyed = false;
  TestListener* listener = new TestListener(&on_start_counter, &is_destroyed);
  {
    TestEventListeners listeners;
    listeners.Append(listener);
    TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
        *UnitTest::GetInstance());
    EXPECT_EQ(1, on_start_counter);
  }
  EXPECT_TRUE(is_destroyed);
}

// Tests that listeners receive events in the order they were appended to
// the list, except for *End requests, which must be received in the reverse
// order.
class SequenceTestingListener : public EmptyTestEventListener {
 public:
  SequenceTestingListener(std::vector<String>* vector, const char* id)
      : vector_(vector), id_(id) {}

 protected:
  virtual void OnTestProgramStart(const UnitTest& /*unit_test*/) {
    vector_->push_back(GetEventDescription("OnTestProgramStart"));
  }

  virtual void OnTestProgramEnd(const UnitTest& /*unit_test*/) {
    vector_->push_back(GetEventDescription("OnTestProgramEnd"));
  }

  virtual void OnTestIterationStart(const UnitTest& /*unit_test*/,
                                    int /*iteration*/) {
    vector_->push_back(GetEventDescription("OnTestIterationStart"));
  }

  virtual void OnTestIterationEnd(const UnitTest& /*unit_test*/,
                                  int /*iteration*/) {
    vector_->push_back(GetEventDescription("OnTestIterationEnd"));
  }

 private:
  String GetEventDescription(const char* method) {
    Message message;
    message << id_ << "." << method;
    return message.GetString();
  }

  std::vector<String>* vector_;
  const char* const id_;

  GTEST_DISALLOW_COPY_AND_ASSIGN_(SequenceTestingListener);
};

TEST(EventListenerTest, AppendKeepsOrder) {
  std::vector<String> vec;
  TestEventListeners listeners;
  listeners.Append(new SequenceTestingListener(&vec, "1st"));
  listeners.Append(new SequenceTestingListener(&vec, "2nd"));
  listeners.Append(new SequenceTestingListener(&vec, "3rd"));

  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
      *UnitTest::GetInstance());
  ASSERT_EQ(3U, vec.size());
  EXPECT_STREQ("1st.OnTestProgramStart", vec[0].c_str());
  EXPECT_STREQ("2nd.OnTestProgramStart", vec[1].c_str());
  EXPECT_STREQ("3rd.OnTestProgramStart", vec[2].c_str());

  vec.clear();
  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramEnd(
      *UnitTest::GetInstance());
  ASSERT_EQ(3U, vec.size());
  EXPECT_STREQ("3rd.OnTestProgramEnd", vec[0].c_str());
  EXPECT_STREQ("2nd.OnTestProgramEnd", vec[1].c_str());
  EXPECT_STREQ("1st.OnTestProgramEnd", vec[2].c_str());

  vec.clear();
  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestIterationStart(
      *UnitTest::GetInstance(), 0);
  ASSERT_EQ(3U, vec.size());
  EXPECT_STREQ("1st.OnTestIterationStart", vec[0].c_str());
  EXPECT_STREQ("2nd.OnTestIterationStart", vec[1].c_str());
  EXPECT_STREQ("3rd.OnTestIterationStart", vec[2].c_str());

  vec.clear();
  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestIterationEnd(
      *UnitTest::GetInstance(), 0);
  ASSERT_EQ(3U, vec.size());
  EXPECT_STREQ("3rd.OnTestIterationEnd", vec[0].c_str());
  EXPECT_STREQ("2nd.OnTestIterationEnd", vec[1].c_str());
  EXPECT_STREQ("1st.OnTestIterationEnd", vec[2].c_str());
}

// Tests that a listener removed from a TestEventListeners list stops receiving
// events and is not deleted when the list is destroyed.
TEST(TestEventListenersTest, Release) {
  int on_start_counter = 0;
  bool is_destroyed = false;
  // Although Append passes the ownership of this object to the list,
  // the following calls release it, and we need to delete it before the
  // test ends.
  TestListener* listener = new TestListener(&on_start_counter, &is_destroyed);
  {
    TestEventListeners listeners;
    listeners.Append(listener);
    EXPECT_EQ(listener, listeners.Release(listener));
    TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
        *UnitTest::GetInstance());
    EXPECT_TRUE(listeners.Release(listener) == NULL);
  }
  EXPECT_EQ(0, on_start_counter);
  EXPECT_FALSE(is_destroyed);
  delete listener;
}

// Tests that no events are forwarded when event forwarding is disabled.
TEST(EventListenerTest, SuppressEventForwarding) {
  int on_start_counter = 0;
  TestListener* listener = new TestListener(&on_start_counter, NULL);

  TestEventListeners listeners;
  listeners.Append(listener);
  ASSERT_TRUE(TestEventListenersAccessor::EventForwardingEnabled(listeners));
  TestEventListenersAccessor::SuppressEventForwarding(&listeners);
  ASSERT_FALSE(TestEventListenersAccessor::EventForwardingEnabled(listeners));
  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
      *UnitTest::GetInstance());
  EXPECT_EQ(0, on_start_counter);
}

// Tests that events generated by Google Test are not forwarded in
// death test subprocesses.
TEST(EventListenerDeathTest, EventsNotForwardedInDeathTestSubprecesses) {
  EXPECT_DEATH_IF_SUPPORTED({
      GTEST_CHECK_(TestEventListenersAccessor::EventForwardingEnabled(
          *GetUnitTestImpl()->listeners())) << "expected failure";},
      "expected failure");
}

// Tests that a listener installed via SetDefaultResultPrinter() starts
// receiving events and is returned via default_result_printer() and that
// the previous default_result_printer is removed from the list and deleted.
TEST(EventListenerTest, default_result_printer) {
  int on_start_counter = 0;
  bool is_destroyed = false;
  TestListener* listener = new TestListener(&on_start_counter, &is_destroyed);

  TestEventListeners listeners;
  TestEventListenersAccessor::SetDefaultResultPrinter(&listeners, listener);

  EXPECT_EQ(listener, listeners.default_result_printer());

  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
      *UnitTest::GetInstance());

  EXPECT_EQ(1, on_start_counter);

  // Replacing default_result_printer with something else should remove it
  // from the list and destroy it.
  TestEventListenersAccessor::SetDefaultResultPrinter(&listeners, NULL);

  EXPECT_TRUE(listeners.default_result_printer() == NULL);
  EXPECT_TRUE(is_destroyed);

  // After broadcasting an event the counter is still the same, indicating
  // the listener is not in the list anymore.
  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
      *UnitTest::GetInstance());
  EXPECT_EQ(1, on_start_counter);
}

// Tests that the default_result_printer listener stops receiving events
// when removed via Release and that is not owned by the list anymore.
TEST(EventListenerTest, RemovingDefaultResultPrinterWorks) {
  int on_start_counter = 0;
  bool is_destroyed = false;
  // Although Append passes the ownership of this object to the list,
  // the following calls release it, and we need to delete it before the
  // test ends.
  TestListener* listener = new TestListener(&on_start_counter, &is_destroyed);
  {
    TestEventListeners listeners;
    TestEventListenersAccessor::SetDefaultResultPrinter(&listeners, listener);

    EXPECT_EQ(listener, listeners.Release(listener));
    EXPECT_TRUE(listeners.default_result_printer() == NULL);
    EXPECT_FALSE(is_destroyed);

    // Broadcasting events now should not affect default_result_printer.
    TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
        *UnitTest::GetInstance());
    EXPECT_EQ(0, on_start_counter);
  }
  // Destroying the list should not affect the listener now, too.
  EXPECT_FALSE(is_destroyed);
  delete listener;
}

// Tests that a listener installed via SetDefaultXmlGenerator() starts
// receiving events and is returned via default_xml_generator() and that
// the previous default_xml_generator is removed from the list and deleted.
TEST(EventListenerTest, default_xml_generator) {
  int on_start_counter = 0;
  bool is_destroyed = false;
  TestListener* listener = new TestListener(&on_start_counter, &is_destroyed);

  TestEventListeners listeners;
  TestEventListenersAccessor::SetDefaultXmlGenerator(&listeners, listener);

  EXPECT_EQ(listener, listeners.default_xml_generator());

  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
      *UnitTest::GetInstance());

  EXPECT_EQ(1, on_start_counter);

  // Replacing default_xml_generator with something else should remove it
  // from the list and destroy it.
  TestEventListenersAccessor::SetDefaultXmlGenerator(&listeners, NULL);

  EXPECT_TRUE(listeners.default_xml_generator() == NULL);
  EXPECT_TRUE(is_destroyed);

  // After broadcasting an event the counter is still the same, indicating
  // the listener is not in the list anymore.
  TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
      *UnitTest::GetInstance());
  EXPECT_EQ(1, on_start_counter);
}

// Tests that the default_xml_generator listener stops receiving events
// when removed via Release and that is not owned by the list anymore.
TEST(EventListenerTest, RemovingDefaultXmlGeneratorWorks) {
  int on_start_counter = 0;
  bool is_destroyed = false;
  // Although Append passes the ownership of this object to the list,
  // the following calls release it, and we need to delete it before the
  // test ends.
  TestListener* listener = new TestListener(&on_start_counter, &is_destroyed);
  {
    TestEventListeners listeners;
    TestEventListenersAccessor::SetDefaultXmlGenerator(&listeners, listener);

    EXPECT_EQ(listener, listeners.Release(listener));
    EXPECT_TRUE(listeners.default_xml_generator() == NULL);
    EXPECT_FALSE(is_destroyed);

    // Broadcasting events now should not affect default_xml_generator.
    TestEventListenersAccessor::GetRepeater(&listeners)->OnTestProgramStart(
        *UnitTest::GetInstance());
    EXPECT_EQ(0, on_start_counter);
  }
  // Destroying the list should not affect the listener now, too.
  EXPECT_FALSE(is_destroyed);
  delete listener;
}

// Sanity tests to ensure that the alternative, verbose spellings of
// some of the macros work.  We don't test them thoroughly as that
// would be quite involved.  Since their implementations are
// straightforward, and they are rarely used, we'll just rely on the
// users to tell us when they are broken.
GTEST_TEST(AlternativeNameTest, Works) {  // GTEST_TEST is the same as TEST.
  GTEST_SUCCEED() << "OK";  // GTEST_SUCCEED is the same as SUCCEED.

  // GTEST_FAIL is the same as FAIL.
  EXPECT_FATAL_FAILURE(GTEST_FAIL() << "An expected failure",
                       "An expected failure");

  // GTEST_ASSERT_XY is the same as ASSERT_XY.

  GTEST_ASSERT_EQ(0, 0);
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_EQ(0, 1) << "An expected failure",
                       "An expected failure");
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_EQ(1, 0) << "An expected failure",
                       "An expected failure");

  GTEST_ASSERT_NE(0, 1);
  GTEST_ASSERT_NE(1, 0);
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_NE(0, 0) << "An expected failure",
                       "An expected failure");

  GTEST_ASSERT_LE(0, 0);
  GTEST_ASSERT_LE(0, 1);
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_LE(1, 0) << "An expected failure",
                       "An expected failure");

  GTEST_ASSERT_LT(0, 1);
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_LT(0, 0) << "An expected failure",
                       "An expected failure");
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_LT(1, 0) << "An expected failure",
                       "An expected failure");

  GTEST_ASSERT_GE(0, 0);
  GTEST_ASSERT_GE(1, 0);
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_GE(0, 1) << "An expected failure",
                       "An expected failure");

  GTEST_ASSERT_GT(1, 0);
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_GT(0, 1) << "An expected failure",
                       "An expected failure");
  EXPECT_FATAL_FAILURE(GTEST_ASSERT_GT(1, 1) << "An expected failure",
                       "An expected failure");
}

// Tests for internal utilities necessary for implementation of the universal
// printing.
// TODO(vladl@google.com): Find a better home for them.

class ConversionHelperBase {};
class ConversionHelperDerived : public ConversionHelperBase {};

// Tests that IsAProtocolMessage<T>::value is a compile-time constant.
TEST(IsAProtocolMessageTest, ValueIsCompileTimeConstant) {
  GTEST_COMPILE_ASSERT_(IsAProtocolMessage<ProtocolMessage>::value,
                        const_true);
  GTEST_COMPILE_ASSERT_(!IsAProtocolMessage<int>::value, const_false);
}

// Tests that IsAProtocolMessage<T>::value is true when T is
// proto2::Message or a sub-class of it.
TEST(IsAProtocolMessageTest, ValueIsTrueWhenTypeIsAProtocolMessage) {
  EXPECT_TRUE(IsAProtocolMessage< ::proto2::Message>::value);
  EXPECT_TRUE(IsAProtocolMessage<ProtocolMessage>::value);
}

// Tests that IsAProtocolMessage<T>::value is false when T is neither
// ProtocolMessage nor a sub-class of it.
TEST(IsAProtocolMessageTest, ValueIsFalseWhenTypeIsNotAProtocolMessage) {
  EXPECT_FALSE(IsAProtocolMessage<int>::value);
  EXPECT_FALSE(IsAProtocolMessage<const ConversionHelperBase>::value);
}

// Tests that CompileAssertTypesEqual compiles when the type arguments are
// equal.
TEST(CompileAssertTypesEqual, CompilesWhenTypesAreEqual) {
  CompileAssertTypesEqual<void, void>();
  CompileAssertTypesEqual<int*, int*>();
}

// Tests that RemoveReference does not affect non-reference types.
TEST(RemoveReferenceTest, DoesNotAffectNonReferenceType) {
  CompileAssertTypesEqual<int, RemoveReference<int>::type>();
  CompileAssertTypesEqual<const char, RemoveReference<const char>::type>();
}

// Tests that RemoveReference removes reference from reference types.
TEST(RemoveReferenceTest, RemovesReference) {
  CompileAssertTypesEqual<int, RemoveReference<int&>::type>();
  CompileAssertTypesEqual<const char, RemoveReference<const char&>::type>();
}

// Tests GTEST_REMOVE_REFERENCE_.

template <typename T1, typename T2>
void TestGTestRemoveReference() {
  CompileAssertTypesEqual<T1, GTEST_REMOVE_REFERENCE_(T2)>();
}

TEST(RemoveReferenceTest, MacroVersion) {
  TestGTestRemoveReference<int, int>();
  TestGTestRemoveReference<const char, const char&>();
}


// Tests that RemoveConst does not affect non-const types.
TEST(RemoveConstTest, DoesNotAffectNonConstType) {
  CompileAssertTypesEqual<int, RemoveConst<int>::type>();
  CompileAssertTypesEqual<char&, RemoveConst<char&>::type>();
}

// Tests that RemoveConst removes const from const types.
TEST(RemoveConstTest, RemovesConst) {
  CompileAssertTypesEqual<int, RemoveConst<const int>::type>();
  CompileAssertTypesEqual<char[2], RemoveConst<const char[2]>::type>();
  CompileAssertTypesEqual<char[2][3], RemoveConst<const char[2][3]>::type>();
}

// Tests GTEST_REMOVE_CONST_.

template <typename T1, typename T2>
void TestGTestRemoveConst() {
  CompileAssertTypesEqual<T1, GTEST_REMOVE_CONST_(T2)>();
}

TEST(RemoveConstTest, MacroVersion) {
  TestGTestRemoveConst<int, int>();
  TestGTestRemoveConst<double&, double&>();
  TestGTestRemoveConst<char, const char>();
}

// Tests GTEST_REMOVE_REFERENCE_AND_CONST_.

template <typename T1, typename T2>
void TestGTestRemoveReferenceAndConst() {
  CompileAssertTypesEqual<T1, GTEST_REMOVE_REFERENCE_AND_CONST_(T2)>();
}

TEST(RemoveReferenceToConstTest, Works) {
  TestGTestRemoveReferenceAndConst<int, int>();
  TestGTestRemoveReferenceAndConst<double, double&>();
  TestGTestRemoveReferenceAndConst<char, const char>();
  TestGTestRemoveReferenceAndConst<char, const char&>();
  TestGTestRemoveReferenceAndConst<const char*, const char*>();
}

// Tests that AddReference does not affect reference types.
TEST(AddReferenceTest, DoesNotAffectReferenceType) {
  CompileAssertTypesEqual<int&, AddReference<int&>::type>();
  CompileAssertTypesEqual<const char&, AddReference<const char&>::type>();
}

// Tests that AddReference adds reference to non-reference types.
TEST(AddReferenceTest, AddsReference) {
  CompileAssertTypesEqual<int&, AddReference<int>::type>();
  CompileAssertTypesEqual<const char&, AddReference<const char>::type>();
}

// Tests GTEST_ADD_REFERENCE_.

template <typename T1, typename T2>
void TestGTestAddReference() {
  CompileAssertTypesEqual<T1, GTEST_ADD_REFERENCE_(T2)>();
}

TEST(AddReferenceTest, MacroVersion) {
  TestGTestAddReference<int&, int>();
  TestGTestAddReference<const char&, const char&>();
}

// Tests GTEST_REFERENCE_TO_CONST_.

template <typename T1, typename T2>
void TestGTestReferenceToConst() {
  CompileAssertTypesEqual<T1, GTEST_REFERENCE_TO_CONST_(T2)>();
}

TEST(GTestReferenceToConstTest, Works) {
  TestGTestReferenceToConst<const char&, char>();
  TestGTestReferenceToConst<const int&, const int>();
  TestGTestReferenceToConst<const double&, double>();
  TestGTestReferenceToConst<const String&, const String&>();
}

// Tests that ImplicitlyConvertible<T1, T2>::value is a compile-time constant.
TEST(ImplicitlyConvertibleTest, ValueIsCompileTimeConstant) {
  GTEST_COMPILE_ASSERT_((ImplicitlyConvertible<int, int>::value), const_true);
  GTEST_COMPILE_ASSERT_((!ImplicitlyConvertible<void*, int*>::value),
                        const_false);
}

// Tests that ImplicitlyConvertible<T1, T2>::value is true when T1 can
// be implicitly converted to T2.
TEST(ImplicitlyConvertibleTest, ValueIsTrueWhenConvertible) {
  EXPECT_TRUE((ImplicitlyConvertible<int, double>::value));
  EXPECT_TRUE((ImplicitlyConvertible<double, int>::value));
  EXPECT_TRUE((ImplicitlyConvertible<int*, void*>::value));
  EXPECT_TRUE((ImplicitlyConvertible<int*, const int*>::value));
  EXPECT_TRUE((ImplicitlyConvertible<ConversionHelperDerived&,
                                     const ConversionHelperBase&>::value));
  EXPECT_TRUE((ImplicitlyConvertible<const ConversionHelperBase,
                                     ConversionHelperBase>::value));
}

// Tests that ImplicitlyConvertible<T1, T2>::value is false when T1
// cannot be implicitly converted to T2.
TEST(ImplicitlyConvertibleTest, ValueIsFalseWhenNotConvertible) {
  EXPECT_FALSE((ImplicitlyConvertible<double, int*>::value));
  EXPECT_FALSE((ImplicitlyConvertible<void*, int*>::value));
  EXPECT_FALSE((ImplicitlyConvertible<const int*, int*>::value));
  EXPECT_FALSE((ImplicitlyConvertible<ConversionHelperBase&,
                                      ConversionHelperDerived&>::value));
}

// Tests IsContainerTest.

class NonContainer {};

TEST(IsContainerTestTest, WorksForNonContainer) {
  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<int>(0)));
  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<char[5]>(0)));
  EXPECT_EQ(sizeof(IsNotContainer), sizeof(IsContainerTest<NonContainer>(0)));
}

TEST(IsContainerTestTest, WorksForContainer) {
  EXPECT_EQ(sizeof(IsContainer),
            sizeof(IsContainerTest<std::vector<bool> >(0)));
  EXPECT_EQ(sizeof(IsContainer),
            sizeof(IsContainerTest<std::map<int, double> >(0)));
}

// Tests ArrayEq().

TEST(ArrayEqTest, WorksForDegeneratedArrays) {
  EXPECT_TRUE(ArrayEq(5, 5L));
  EXPECT_FALSE(ArrayEq('a', 0));
}

TEST(ArrayEqTest, WorksForOneDimensionalArrays) {
  // Note that a and b are distinct but compatible types.
  const int a[] = { 0, 1 };
  long b[] = { 0, 1 };
  EXPECT_TRUE(ArrayEq(a, b));
  EXPECT_TRUE(ArrayEq(a, 2, b));

  b[0] = 2;
  EXPECT_FALSE(ArrayEq(a, b));
  EXPECT_FALSE(ArrayEq(a, 1, b));
}

TEST(ArrayEqTest, WorksForTwoDimensionalArrays) {
  const char a[][3] = { "hi", "lo" };
  const char b[][3] = { "hi", "lo" };
  const char c[][3] = { "hi", "li" };

  EXPECT_TRUE(ArrayEq(a, b));
  EXPECT_TRUE(ArrayEq(a, 2, b));

  EXPECT_FALSE(ArrayEq(a, c));
  EXPECT_FALSE(ArrayEq(a, 2, c));
}

// Tests ArrayAwareFind().

TEST(ArrayAwareFindTest, WorksForOneDimensionalArray) {
  const char a[] = "hello";
  EXPECT_EQ(a + 4, ArrayAwareFind(a, a + 5, 'o'));
  EXPECT_EQ(a + 5, ArrayAwareFind(a, a + 5, 'x'));
}

TEST(ArrayAwareFindTest, WorksForTwoDimensionalArray) {
  int a[][2] = { { 0, 1 }, { 2, 3 }, { 4, 5 } };
  const int b[2] = { 2, 3 };
  EXPECT_EQ(a + 1, ArrayAwareFind(a, a + 3, b));

  const int c[2] = { 6, 7 };
  EXPECT_EQ(a + 3, ArrayAwareFind(a, a + 3, c));
}

// Tests CopyArray().

TEST(CopyArrayTest, WorksForDegeneratedArrays) {
  int n = 0;
  CopyArray('a', &n);
  EXPECT_EQ('a', n);
}

TEST(CopyArrayTest, WorksForOneDimensionalArrays) {
  const char a[3] = "hi";
  int b[3];
#ifndef __BORLANDC__  // C++Builder cannot compile some array size deductions.
  CopyArray(a, &b);
  EXPECT_TRUE(ArrayEq(a, b));
#endif

  int c[3];
  CopyArray(a, 3, c);
  EXPECT_TRUE(ArrayEq(a, c));
}

TEST(CopyArrayTest, WorksForTwoDimensionalArrays) {
  const int a[2][3] = { { 0, 1, 2 }, { 3, 4, 5 } };
  int b[2][3];
#ifndef __BORLANDC__  // C++Builder cannot compile some array size deductions.
  CopyArray(a, &b);
  EXPECT_TRUE(ArrayEq(a, b));
#endif

  int c[2][3];
  CopyArray(a, 2, c);
  EXPECT_TRUE(ArrayEq(a, c));
}

// Tests NativeArray.

TEST(NativeArrayTest, ConstructorFromArrayWorks) {
  const int a[3] = { 0, 1, 2 };
  NativeArray<int> na(a, 3, kReference);
  EXPECT_EQ(3U, na.size());
  EXPECT_EQ(a, na.begin());
}

TEST(NativeArrayTest, CreatesAndDeletesCopyOfArrayWhenAskedTo) {
  typedef int Array[2];
  Array* a = new Array[1];
  (*a)[0] = 0;
  (*a)[1] = 1;
  NativeArray<int> na(*a, 2, kCopy);
  EXPECT_NE(*a, na.begin());
  delete[] a;
  EXPECT_EQ(0, na.begin()[0]);
  EXPECT_EQ(1, na.begin()[1]);

  // We rely on the heap checker to verify that na deletes the copy of
  // array.
}

TEST(NativeArrayTest, TypeMembersAreCorrect) {
  StaticAssertTypeEq<char, NativeArray<char>::value_type>();
  StaticAssertTypeEq<int[2], NativeArray<int[2]>::value_type>();

  StaticAssertTypeEq<const char*, NativeArray<char>::const_iterator>();
  StaticAssertTypeEq<const bool(*)[2], NativeArray<bool[2]>::const_iterator>();
}

TEST(NativeArrayTest, MethodsWork) {
  const int a[3] = { 0, 1, 2 };
  NativeArray<int> na(a, 3, kCopy);
  ASSERT_EQ(3U, na.size());
  EXPECT_EQ(3, na.end() - na.begin());

  NativeArray<int>::const_iterator it = na.begin();
  EXPECT_EQ(0, *it);
  ++it;
  EXPECT_EQ(1, *it);
  it++;
  EXPECT_EQ(2, *it);
  ++it;
  EXPECT_EQ(na.end(), it);

  EXPECT_TRUE(na == na);

  NativeArray<int> na2(a, 3, kReference);
  EXPECT_TRUE(na == na2);

  const int b1[3] = { 0, 1, 1 };
  const int b2[4] = { 0, 1, 2, 3 };
  EXPECT_FALSE(na == NativeArray<int>(b1, 3, kReference));
  EXPECT_FALSE(na == NativeArray<int>(b2, 4, kCopy));
}

TEST(NativeArrayTest, WorksForTwoDimensionalArray) {
  const char a[2][3] = { "hi", "lo" };
  NativeArray<char[3]> na(a, 2, kReference);
  ASSERT_EQ(2U, na.size());
  EXPECT_EQ(a, na.begin());
}

// Tests SkipPrefix().

TEST(SkipPrefixTest, SkipsWhenPrefixMatches) {
  const char* const str = "hello";

  const char* p = str;
  EXPECT_TRUE(SkipPrefix("", &p));
  EXPECT_EQ(str, p);

  p = str;
  EXPECT_TRUE(SkipPrefix("hell", &p));
  EXPECT_EQ(str + 4, p);
}

TEST(SkipPrefixTest, DoesNotSkipWhenPrefixDoesNotMatch) {
  const char* const str = "world";

  const char* p = str;
  EXPECT_FALSE(SkipPrefix("W", &p));
  EXPECT_EQ(str, p);

  p = str;
  EXPECT_FALSE(SkipPrefix("world!", &p));
  EXPECT_EQ(str, p);
}

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Change log

r612 by j...@google.com on Mar 9, 2012 Diff

Misc small updates to some debug death
code, and to messages streaming to macros

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Older revisions

r607 by vladlosev on Nov 4, 2011 Diff

Improves conformance to the Google C++
Style Guide (by Greg Miller).

r600 by vladlosev on Oct 4, 2011 Diff

Implements the timestamp attribute for
the testsuites element in the output
XML (external contribution by Dirk
Meister).

r564 by vladlosev on Apr 7, 2011 Diff

Removes commas from last items in
enums (a C++ standard compliance fix).

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