My favorites | Sign in
Project Home Downloads Wiki Issues Source
Checkout   Browse   Changes  
Changes to /trunk/java/src/test/java/com/google/protobuf/RopeByteStringTest.java
r0 vs. r425 Compare: vs.  Format:
Revision r425
Go to: 
Project members, sign in to write a code review
/trunk/java/src/test/java/com/google/protobuf/RopeByteStringTest.java /trunk/java/src/test/java/com/google/protobuf/RopeByteStringTest.java   r425
  1 // Protocol Buffers - Google's data interchange format
  2 // Copyright 2008 Google Inc. All rights reserved.
  3 // http://code.google.com/p/protobuf/
  4 //
  5 // Redistribution and use in source and binary forms, with or without
  6 // modification, are permitted provided that the following conditions are
  7 // met:
  8 //
  9 // * Redistributions of source code must retain the above copyright
  10 // notice, this list of conditions and the following disclaimer.
  11 // * Redistributions in binary form must reproduce the above
  12 // copyright notice, this list of conditions and the following disclaimer
  13 // in the documentation and/or other materials provided with the
  14 // distribution.
  15 // * Neither the name of Google Inc. nor the names of its
  16 // contributors may be used to endorse or promote products derived from
  17 // this software without specific prior written permission.
  18 //
  19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30
  31 package com.google.protobuf;
  32
  33 import java.io.UnsupportedEncodingException;
  34 import java.util.Arrays;
  35 import java.util.Iterator;
  36
  37 /**
  38 * This class tests {@link RopeByteString} by inheriting the tests from
  39 * {@link LiteralByteStringTest}. Only a couple of methods are overridden.
  40 *
  41 * <p>A full test of the result of {@link RopeByteString#substring(int, int)} is found in the
  42 * separate class {@link RopeByteStringSubstringTest}.
  43 *
  44 * @author carlanton@google.com (Carl Haverl)
  45 */
  46 public class RopeByteStringTest extends LiteralByteStringTest {
  47
  48 @Override
  49 protected void setUp() throws Exception {
  50 classUnderTest = "RopeByteString";
  51 referenceBytes = ByteStringTest.getTestBytes(22341, 22337766L);
  52 Iterator<ByteString> iter = ByteStringTest.makeConcretePieces(referenceBytes).iterator();
  53 stringUnderTest = iter.next();
  54 while (iter.hasNext()) {
  55 stringUnderTest = stringUnderTest.concat(iter.next());
  56 }
  57 expectedHashCode = -1214197238;
  58 }
  59
  60 @Override
  61 public void testGetTreeDepth() {
  62 assertEquals(classUnderTest + " must have the expected tree depth",
  63 4, stringUnderTest.getTreeDepth());
  64 }
  65
  66 public void testBalance() {
  67 int numberOfPieces = 10000;
  68 int pieceSize = 64;
  69 byte[] testBytes = ByteStringTest.getTestBytes(numberOfPieces * pieceSize, 113377L);
  70
  71 // Build up a big ByteString from smaller pieces to force a rebalance
  72 ByteString concatenated = ByteString.EMPTY;
  73 for (int i = 0; i < numberOfPieces; ++i) {
  74 concatenated = concatenated.concat(ByteString.copyFrom(testBytes, i * pieceSize, pieceSize));
  75 }
  76
  77 assertEquals(classUnderTest + " from string must have the expected type",
  78 classUnderTest, getActualClassName(concatenated));
  79 assertTrue(classUnderTest + " underlying bytes must match after balancing",
  80 Arrays.equals(testBytes, concatenated.toByteArray()));
  81 ByteString testString = ByteString.copyFrom(testBytes);
  82 assertTrue(classUnderTest + " balanced string must equal flat string",
  83 concatenated.equals(testString));
  84 assertTrue(classUnderTest + " flat string must equal balanced string",
  85 testString.equals(concatenated));
  86 assertEquals(classUnderTest + " balanced string must have same hash code as flat string",
  87 testString.hashCode(), concatenated.hashCode());
  88 }
  89
  90 @Override
  91 public void testToString() throws UnsupportedEncodingException {
  92 String sourceString = "I love unicode \u1234\u5678 characters";
  93 ByteString sourceByteString = ByteString.copyFromUtf8(sourceString);
  94 int copies = 250;
  95
  96 // By building the RopeByteString by concatenating, this is actually a fairly strenuous test.
  97 StringBuilder builder = new StringBuilder(copies * sourceString.length());
  98 ByteString unicode = ByteString.EMPTY;
  99 for (int i = 0; i < copies; ++i) {
  100 builder.append(sourceString);
  101 unicode = RopeByteString.concatenate(unicode, sourceByteString);
  102 }
  103 String testString = builder.toString();
  104
  105 assertEquals(classUnderTest + " from string must have the expected type",
  106 classUnderTest, getActualClassName(unicode));
  107 String roundTripString = unicode.toString(UTF_8);
  108 assertEquals(classUnderTest + " unicode bytes must match",
  109 testString, roundTripString);
  110 ByteString flatString = ByteString.copyFromUtf8(testString);
  111 assertEquals(classUnderTest + " string must equal the flat string", flatString, unicode);
  112 assertEquals(classUnderTest + " string must must have same hashCode as the flat string",
  113 flatString.hashCode(), unicode.hashCode());
  114 }
  115 }
Powered by Google Project Hosting