1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements.  See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License.  You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *
15  *  See the License for the specific language governing permissions and
16  *  limitations under the License.
17  */
18 
19 /**
20  * @author Vitaly A. Provodin
21  */
22 
23 /**
24  * Created on 18.02.2005
25  */
26 package org.apache.harmony.jpda.tests.jdwp.ThreadReference;
27 
28 import org.apache.harmony.jpda.tests.framework.jdwp.CommandPacket;
29 import org.apache.harmony.jpda.tests.framework.jdwp.JDWPCommands;
30 import org.apache.harmony.jpda.tests.framework.jdwp.JDWPConstants;
31 import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket;
32 import org.apache.harmony.jpda.tests.jdwp.share.JDWPSyncTestCase;
33 import org.apache.harmony.jpda.tests.share.JPDADebuggeeSynchronizer;
34 
35 
36 /**
37  * JDWP Unit test for ThreadReference.FrameCount command.
38  */
39 public class FrameCountTest extends JDWPSyncTestCase {
40 
getDebuggeeClassName()41     protected String getDebuggeeClassName() {
42         return "org.apache.harmony.jpda.tests.jdwp.ThreadReference.FramesDebuggee";
43     }
44 
45     /**
46      * This testcase exercises ThreadReference.CurrentContendedMonitor command.
47      * <BR>At first the test starts FramesDebuggee which recursively invokes
48      * the method 'FramesDebuggee.recursiveMethod' thereby the specified depth
49      * 'FramesDebuggee.DEPTH' of recursion is reached.
50      * <BR> Then the tests requests list of frames for main thread by invoking
51      * the JDWP command ThreadReference.Frames and compares size of
52      * this list with the value got via invoking ThreadReference.FrameCount command.
53      * <BR>The test expects that these values are equal, otherwise the test fail.
54      *
55      */
testFrameCount001()56     public void testFrameCount001() {
57         logWriter.println("==> testFrameCount001 START ");
58         String testedThreadName = synchronizer.receiveMessage();
59 
60         logWriter.println
61         ("==> testedThreadName = |" + testedThreadName +"|");
62         long threadID = debuggeeWrapper.vmMirror.getThreadID(testedThreadName);
63         logWriter.println("==> threadID = " + threadID);
64         debuggeeWrapper.vmMirror.suspendThread(threadID);
65 
66         int expectedCount = getFramesCount(threadID);
67         logWriter.println("\texpected count = " + expectedCount);
68 
69         CommandPacket packet = new CommandPacket(
70                 JDWPCommands.ThreadReferenceCommandSet.CommandSetID,
71                 JDWPCommands.ThreadReferenceCommandSet.FrameCountCommand);
72         packet.setNextValueAsThreadID(threadID);
73         ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
74         checkReplyPacket(reply, "ThreadReference::FrameCount command");
75 
76         int frameCount = reply.getNextValueAsInt();
77         logWriter.println("\tframe count = " + frameCount);
78 
79         if (frameCount != expectedCount) {
80             printErrorAndFail("Unexpected frame count = " + frameCount
81                     + ", expected value " + expectedCount);
82         }
83         debuggeeWrapper.vmMirror.resumeThread(threadID);
84         synchronizer.sendMessage(JPDADebuggeeSynchronizer.SGNL_CONTINUE);
85     }
86 
getFramesCount(long threadID)87     private int getFramesCount(long threadID) {
88 
89         logWriter.println("getting frames of the thread");
90 
91         short err;
92 
93         // getting frames of the thread
94         CommandPacket packet = new CommandPacket(
95                 JDWPCommands.ThreadReferenceCommandSet.CommandSetID,
96                 JDWPCommands.ThreadReferenceCommandSet.FramesCommand);
97         packet.setNextValueAsThreadID(threadID);
98         packet.setNextValueAsInt(0);
99         packet.setNextValueAsInt(-1);
100         ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
101         err = reply.getErrorCode();
102         if ( err != JDWPConstants.Error.NONE) {
103             logWriter.println("\tthreadID=" + threadID
104                     + " - " + JDWPConstants.Error.getName(err));
105             return 0;
106         }
107         int framesCount = reply.getNextValueAsInt();
108         return framesCount;
109     }
110 }
111