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 Viacheslav G. Rybalov
21 */
22
23/**
24 * Created on 05.03.2005
25 */
26package org.apache.harmony.jpda.tests.jdwp.ClassLoaderReference;
27
28import org.apache.harmony.jpda.tests.framework.jdwp.CommandPacket;
29import org.apache.harmony.jpda.tests.framework.jdwp.JDWPCommands;
30import org.apache.harmony.jpda.tests.framework.jdwp.JDWPConstants;
31import org.apache.harmony.jpda.tests.framework.jdwp.ReplyPacket;
32import org.apache.harmony.jpda.tests.jdwp.share.JDWPSyncTestCase;
33import org.apache.harmony.jpda.tests.share.JPDADebuggeeSynchronizer;
34
35
36/**
37 * JDWP unit test for ClassLoaderReference.VisibleClasses command.
38 */
39public class VisibleClassesTest extends JDWPSyncTestCase {
40
41    /**
42     * Returns full name of debuggee class which is used by this test.
43     * @return full name of debuggee class.
44     */
45    @Override
46    protected String getDebuggeeClassName() {
47        return "org.apache.harmony.jpda.tests.jdwp.share.debuggee.HelloWorld";
48    }
49
50    /**
51     * This testcase exercises ClassLoaderReference.VisibleClasses command.
52     * <BR>Starts <A HREF="../share/debuggee/HelloWorld.html">HelloWorld</A> debuggee.
53     * <BR>Then the following statements are checked:
54     * <BR>It is expected:
55     * <BR>&nbsp;&nbsp; - number of reference types has non-zero value;
56     * <BR>&nbsp;&nbsp; - refTypeTag takes one of the TypeTag constants: CLASS, INTERFACE, ARRAY;
57     * <BR>&nbsp;&nbsp; - All data were read;
58     */
59    public void testVisibleClasses001() {
60        synchronizer.receiveMessage(JPDADebuggeeSynchronizer.SGNL_READY);
61
62        CommandPacket packet = new CommandPacket(
63                JDWPCommands.ClassLoaderReferenceCommandSet.CommandSetID,
64                JDWPCommands.ClassLoaderReferenceCommandSet.VisibleClassesCommand);
65        packet.setNextValueAsClassLoaderID(0);
66        ReplyPacket reply = debuggeeWrapper.vmMirror.performCommand(packet);
67        checkReplyPacket(reply, "ClassLoaderReference::VisibleClasses command");
68
69        byte refTypeTag;
70        String refTypeTagName;
71        long typeID;
72        String msgLine;
73
74        int classes = reply.getNextValueAsInt();
75        logWriter.println("Number of reference types = " + classes);
76        assertTrue("Invalid returned number of reference types = " + classes, classes > 0);
77
78        int printBound_1 = classes;
79        int printBound_2 = 0;
80        if (classes > 50) {
81            printBound_1 = 5;
82            printBound_2 = classes - 5;
83        }
84        for (int i = 0; i < classes; i++) {
85            refTypeTag = reply.getNextValueAsByte();
86            refTypeTagName = JDWPConstants.TypeTag.getName(refTypeTag);
87            msgLine = "" + i + ".  refTypeTag = " + refTypeTagName + "(" + refTypeTag + ")";
88            typeID = reply.getNextValueAsReferenceTypeID();
89            msgLine = msgLine + ";  referenceTypeID = " + typeID;
90            if ( (i < printBound_1) || (i >= printBound_2) ) {
91                logWriter.println(msgLine);
92                if ( i == (printBound_1 - 1) ) {
93                    logWriter.println("...\n...\n...");
94                }
95            }
96            assertTrue("Unexpected reference TagType:<" + refTypeTag + "(" + refTypeTagName + ")>",
97                    refTypeTag == JDWPConstants.TypeTag.ARRAY
98                    || refTypeTag == JDWPConstants.TypeTag.CLASS
99                    || refTypeTag == JDWPConstants.TypeTag.INTERFACE);
100        }
101
102        assertAllDataRead(reply);
103        synchronizer.sendMessage(JPDADebuggeeSynchronizer.SGNL_CONTINUE);
104    }
105}
106