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/**
 *  BlueCove - Java library for Bluetooth
 *  Copyright (C) 2008-2009 Vlad Skarzhevskyy
 *
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 *
 *  @author vlads
 *  @version $Id$
 */
package net.sf.bluecove;

import javax.bluetooth.BluetoothStateException;
import javax.bluetooth.DiscoveryAgent;
import javax.bluetooth.LocalDevice;
import javax.bluetooth.ServiceRecord;
import javax.bluetooth.UUID;

import junit.framework.Assert;
import junit.framework.TestCase;

import com.intel.bluetooth.BlueCoveConfigProperties;
import com.intel.bluetooth.BlueCoveImpl;
import com.intel.bluetooth.EmulatorTestsHelper;

/**
 * 
 */
public abstract class BaseEmulatorTestCase extends TestCase {

    // Use this to debug tests
    protected boolean debug = false;

    protected boolean debugOnInEclipse = true;

    protected Thread testServerThread;

    protected ThreadGroup testServerThreadGroup;

    protected LongRunningTestMonitor monitor;

    /**
     * Default 30 seconds
     * 
     * @return the length of time for test in milliseconds.
     */
    protected int gracePeriod() {
        return 30 * 1000;
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        boolean eclipse = isEclipse();
        if (eclipse && debugOnInEclipse) {
            debug = true;
        }
        if (!eclipse && (gracePeriod() > 0)) {
            monitor = new LongRunningTestMonitor(gracePeriod(), this.getClass().getName() + "." + this.getName());
            monitor.start();
        }
        // Use this to debug tests
        if (debug) {
            BlueCoveImpl.setConfigProperty(BlueCoveConfigProperties.PROPERTY_DEBUG, "true");
            BlueCoveImpl.setConfigProperty(BlueCoveConfigProperties.PROPERTY_DEBUG_STDOUT, "false");
        } else {
            BlueCoveImpl.setConfigProperty(BlueCoveConfigProperties.PROPERTY_DEBUG_LOG4J, "false");
        }
        EmulatorTestsHelper.startInProcessServer();
        Runnable r = createTestServer();
        if (r != null) {
            testServerThread = EmulatorTestsHelper.runNewEmulatorStack(r);
            testServerThread.setName(this.getClass().getSimpleName() + "-ServerThread");
            testServerThreadGroup = testServerThread.getThreadGroup();
            if (monitor != null) {
                monitor.setSecondaryTestThreadGroup(testServerThreadGroup);
            }
        }
        EmulatorTestsHelper.useThreadLocalEmulator();
    }

    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
        if (testServerThreadGroup != null) {
            testServerThreadGroup.interrupt();
            int count = testServerThreadGroup.activeCount();
            Thread[] active = new Thread[count];
            count = testServerThreadGroup.enumerate(active);
            for (int i = 0; i < count; i++) {
                active[i].join(5000);
            }
        }
        EmulatorTestsHelper.stopInProcessServer();
        if (monitor != null) {
            monitor.finish();
            monitor = null;
        }
    }

    /**
     * Override if test needs a second Thread with server
     * 
     * @return
     */
    protected Runnable createTestServer() {
        return null;
    }

    static public void assertEquals(String message, byte[] expected, byte[] actual) {
        Assert.assertNotNull(message + " value is null", actual);
        Assert.assertEquals(message + " length", expected.length, actual.length);
        for (int i = 0; i < expected.length; i++) {
            Assert.assertEquals(message + " byte [" + i + "]", expected[i], actual[i]);
        }
    }

    static public void assertEquals(String message, int length, byte[] expected, byte[] actual) {
        Assert.assertTrue(message + " expected.length", expected.length >= length);
        Assert.assertTrue(message + " actual.length", actual.length >= length);
        for (int i = 0; i < length; i++) {
            Assert.assertEquals(message + " byte [" + i + "]", expected[i], actual[i]);
        }
    }

    protected String selectService(String uuid) throws BluetoothStateException {
        return selectService(new UUID(uuid, false));
    }

    protected String selectService(UUID uuid) throws BluetoothStateException {
        DiscoveryAgent discoveryAgent = LocalDevice.getLocalDevice().getDiscoveryAgent();

        // Find service
        String serverURL = null;
        int retry = 0;
        while ((serverURL == null) && ((retry++) < 3)) {
            serverURL = discoveryAgent.selectService(uuid, ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false);
        }

        Assert.assertNotNull("service not found", serverURL);

        return serverURL;
    }

    boolean isEclipse() {
        StackTraceElement[] ste = new Throwable().getStackTrace();
        for (StackTraceElement s : ste) {
            if (s.getClassName().startsWith("org.eclipse.jdt")) {
                return true;
            }
        }
        return false;
    }

}