Package org.apache.harmony.jpda.tests.jdwp.ThreadReference

Source Code of org.apache.harmony.jpda.tests.jdwp.ThreadReference.OwnedMonitorsStackDepthInfoTest

/*
* 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.
*/

package org.apache.harmony.jpda.tests.jdwp.ThreadReference;

import org.apache.harmony.jpda.tests.framework.jdwp.CommandPacket;
import org.apache.harmony.jpda.tests.framework.jdwp.JDWPCommands;
import org.apache.harmony.jpda.tests.framework.jdwp.JDWPConstants;
import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket;
import org.apache.harmony.jpda.tests.framework.jdwp.TaggedObject;
import org.apache.harmony.jpda.tests.jdwp.share.JDWPSyncTestCase;
import org.apache.harmony.jpda.tests.share.JPDADebuggeeSynchronizer;

/**
* JDWP Unit test for ThreadReference.OwnedMonitorsStackDepthInfo command.
*/
public class OwnedMonitorsStackDepthInfoTest extends JDWPSyncTestCase {

    static final String thisCommandName = "ThreadReference.OwnedMonitorsStackDepthInfo command ";

    protected String getDebuggeeClassName() {
        return "org.apache.harmony.jpda.tests.jdwp.ThreadReference.OwnedMonitorsStackDepthInfoDebuggee";
    }
   
    // OwnedMonitorsStackDepthInfo needs canGetMonitorFrameInfo VM capability support
    private boolean isCapability() {
        // check capability, relevant for this test
        logWriter.println("=> Check capability: canGetMonitorFrameInfo");
        debuggeeWrapper.vmMirror.capabilities();
        boolean isCapability = debuggeeWrapper.vmMirror.targetVMCapabilities.canGetMonitorFrameInfo;
        return isCapability;
    }

    /**
     * This testcase exercises ThreadReference.OwnedMonitorsStackDepthInfo
     * command. <BR>
     * At first the test starts OwnedMonitorsStackDepthInfoDebuggee which runs
     * the tested thread 'TESTED_THREAD'. <BR>
     * Then the test performs the ThreadReference.OwnedMonitorsStackDepthInfo
     * command for the tested thread and gets list of monitor objects.
     * The returned monitor objects are equal to expected count and their stack depth are
     *  equal to expected depth. This test will perform MonitorInfo to guarrantee that returend
     *  monitors do belong to the test thread.
     */
    public void testOwnedMonitorsStackDepthInfo() {
        String thisTestName = "testOwnedMonitorsStackDepthInfo";
        logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": START...");
        synchronizer.receiveMessage(JPDADebuggeeSynchronizer.SGNL_READY);

        if (!isCapability()) {
            logWriter.println("##WARNING: this VM dosn't possess capability: canGetInstanceInfo");
            return;
        }

        // Getting ID of the tested thread
        logWriter.println("==> testedThreadName = "
                + OwnedMonitorsStackDepthInfoDebuggee.TESTED_THREAD);
        logWriter.println("==> Get testedThreadID...");
        long testedThreadID = debuggeeWrapper.vmMirror
                .getThreadID(OwnedMonitorsStackDepthInfoDebuggee.TESTED_THREAD);

        // Compose the OwnedMonitorsStackDepthInfo command
        CommandPacket stackDepthPacket = new CommandPacket(
                JDWPCommands.ThreadReferenceCommandSet.CommandSetID,
                JDWPCommands.ThreadReferenceCommandSet.OwnedMonitorsStackDepthInfoCommand);
        stackDepthPacket.setNextValueAsThreadID(testedThreadID);

        // Suspend the VM before perform command
        logWriter.println("==> testedThreadID = " + testedThreadID);
        logWriter.println("==> suspend testedThread...");
        debuggeeWrapper.vmMirror.suspendThread(testedThreadID);
       
        // Perform the command and attain the reply package
        ReplyPacket stackDepthReply = debuggeeWrapper.vmMirror
                .performCommand(stackDepthPacket);
        checkReplyPacket(stackDepthReply,
                "ThreadReference::OwnedMonitorsStackDepthInfo command");

        // Expected return values, these values is attained from RI behavior
        int expectedMonitorCount = 3;
        int[] expectedStackDepth = new int[] { 6, 7, 7 };

        // Analyze the reply package
        int owned = stackDepthReply.getNextValueAsInt();
        assertEquals(thisCommandName
                + "returned number of owned monitors is not equal to expected number.",
                expectedMonitorCount, owned, null, null);
        logWriter
                .println("==> CHECK: PASSED: returned owned monitors have the same counts as expected");
        logWriter.println("==> Owned monitors: " + owned);

        for (int i = 0; i < owned; i++) {
            // Attain monitor object ID
            TaggedObject monitorObject = stackDepthReply
                    .getNextValueAsTaggedObject();
           
            // Attain monitor stack depth
            int returnedDepthInfo = stackDepthReply.getNextValueAsInt();
            assertEquals(thisCommandName
                    + "returned monitor is not owned by test thread",
                    expectedStackDepth[i], returnedDepthInfo, null, null);
            logWriter.println("==> CHECK: PASSED: returned owned monitor has the expected stack depth");
            logWriter.println("==> Stack depth: " + returnedDepthInfo);

            /*
             *  Test the returned monitor object does belong to the test thread by MonitorInfo Command
             */
            // Compose the MonitorInfo Command
            CommandPacket monitorInfoPacket = new CommandPacket(
                    JDWPCommands.ObjectReferenceCommandSet.CommandSetID,
                    JDWPCommands.ObjectReferenceCommandSet.MonitorInfoCommand);
            monitorInfoPacket.setNextValueAsObjectID(monitorObject.objectID);

            // Perform the command and attain the reply package
            ReplyPacket monitorInfoReply = debuggeeWrapper.vmMirror
                    .performCommand(monitorInfoPacket);
            checkReplyPacket(monitorInfoReply,
                    "ObjectReference::MonitorInfo command");

            // Attain thread id from monitor info
            long ownerThreadID = monitorInfoReply.getNextValueAsThreadID();
            assertEquals(thisCommandName + "returned monitor is not owned by test thread", ownerThreadID, testedThreadID, null, null);
           
            logWriter.println("==> CHECK: PASSED: returned monitor does belong to the test thread.");
            logWriter.println("==> Monitor owner thread ID: " + ownerThreadID);

        }

        synchronizer.sendMessage(JPDADebuggeeSynchronizer.SGNL_CONTINUE);
        assertAllDataRead(stackDepthReply);
    }

   
    public void testOwnedMonitorsStackDepthInfo_Unsuspended() {
        String thisTestName = "testOwnedMonitorsStackDepthInfo";
        logWriter.println("==> " + thisTestName + " for " + thisCommandName
                + ": START...");
        synchronizer.receiveMessage(JPDADebuggeeSynchronizer.SGNL_READY);

        if (!isCapability()) {
            logWriter
                    .println("##WARNING: this VM dosn't possess capability: OwnedMonitorsStackDepthInfo");
            return;
        }

        // Getting ID of the tested thread
        logWriter.println("==> testedThreadName = "
                + OwnedMonitorsStackDepthInfoDebuggee.TESTED_THREAD);
        logWriter.println("==> Get testedThreadID...");
        long testedThreadID = debuggeeWrapper.vmMirror
                .getThreadID(OwnedMonitorsStackDepthInfoDebuggee.TESTED_THREAD);

        // Compose the OwnedMonitorsStackDepthInfo command
        CommandPacket stackDepthPacket = new CommandPacket(
                JDWPCommands.ThreadReferenceCommandSet.CommandSetID,
                JDWPCommands.ThreadReferenceCommandSet.OwnedMonitorsStackDepthInfoCommand);
        stackDepthPacket.setNextValueAsThreadID(testedThreadID);

        // Perform the command and attain the reply package
        ReplyPacket checkedReply = debuggeeWrapper.vmMirror
                .performCommand(stackDepthPacket);
        short errorCode = checkedReply.getErrorCode();
        if (errorCode != JDWPConstants.Error.NONE) {
            if (errorCode == JDWPConstants.Error.THREAD_NOT_SUSPENDED) {
                logWriter.println("=> CHECK PASSED: Expected error (THREAD_NOT_SUSPENDED) is returned");
                return;
            }
        }
        printErrorAndFail(thisCommandName + " should throw exception when VM is not suspended.");
    }   
   
    public static void main(String[] args) {
        junit.textui.TestRunner.run(OwnedMonitorsStackDepthInfoTest.class);
    }
}
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