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/*
* 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.ObjectReference;
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.Value;
import org.apache.harmony.jpda.tests.jdwp.share.JDWPSyncTestCase;
import org.apache.harmony.jpda.tests.share.JPDADebuggeeSynchronizer;
public class ReferringObjectsTest extends JDWPSyncTestCase {
static final int testStatusPassed = 0;
static final int testStatusFailed = -1;
static int maxReferrers;
static final String thisCommandName = "ObjectReference.ReferringObjects command";
static final String debuggeeSignature = "Lorg/apache/harmony/jpda/tests/jdwp/ObjectReference/ReferringObjectsDebuggee;";
static final String referreeObjSignature = "Lorg/apache/harmony/jpda/tests/jdwp/ObjectReference/ReferringObjectsReferree001;";
static final String referrerObjSignature = "Lorg/apache/harmony/jpda/tests/jdwp/ObjectReference/ReferringObjectsReferrer001;";
@Override
protected String getDebuggeeClassName() {
return "org.apache.harmony.jpda.tests.jdwp.ObjectReference.ReferringObjectsDebuggee";
}
/**
* This testcase exercises ObjectReference.ReferringObjects command.
* <BR>The test starts ReferringObjectsDebuggee class, requests referree objectID,
* for this class by ReferenceType.Instances command, then performs ObjectReference.ReferringObjects
* command and checks that returned instances are equal to the expected referrer objects. Since maxReferrers
* equals zero, all instances are returned.
*/
public void testReferringObjects_MaxReferrersIsZero() {
maxReferrers = 0;
DoTestReferringObjects();
}
/**
* This testcase exercises ObjectReference.ReferringObjects command.
* <BR>The test starts ReferringObjectsDebuggee class, requests referree objectID,
* for this class by ReferenceType.Instances command, then performs ObjectReference.ReferringObjects
* command and checks that returned instances are equal to the expected referrer objects. Since maxReferrers
* is more than the number of referrer objects, all instances are returned.
*/
public void testReferringObjects_MaxReferrersIsLarge() {
maxReferrers = 20;
DoTestReferringObjects();
}
/**
* This testcase exercises ObjectReference.ReferringObjects command.
* <BR>The test starts ReferringObjectsDebuggee class, requests referree objectID,
* for this class by ReferenceType.Instances command, then performs ObjectReference.ReferringObjects
* command and checks that returned instances are equal to the expected referrer objects. Since maxReferrers
* is less than the number of referrer objects, the number of instances returned is equal to maxReferrers.
*/
public void testReferringObjects_MaxReferrersIsSmall() {
maxReferrers = 1;
DoTestReferringObjects();
}
/**
* This is the real body of the testcase which exercises ObjectReference.ReferringObjects command.
* <BR>The test starts ReferringObjectsDebuggee class, requests referree objectID,
* for this class by ReferenceType.Instances command, then performs ObjectReference.ReferringObjects
* command and checks that returned instances are equal to the expected referrer objects.
*/
public void DoTestReferringObjects() {
String thisTestName = getName();
logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": START...");
synchronizer.receiveMessage(JPDADebuggeeSynchronizer.SGNL_READY);
// Get the number of referrer objects in ReferringObjectsDebuggee
long debuggeeRefTypeID = getClassIDBySignature(debuggeeSignature);
long referringObjNumID = debuggeeWrapper.vmMirror.getFieldID(
debuggeeRefTypeID, "referringObjNum");
long[] fieldIDs = new long[1];
fieldIDs[0] = referringObjNumID;
Value[] values = debuggeeWrapper.vmMirror.getReferenceTypeValues(
debuggeeRefTypeID, fieldIDs);
int expectedReferringObjNum = values[0].getIntValue();
logWriter.println("=> ReferringObjNum in debuggee is: " + expectedReferringObjNum);
if(maxReferrers > 0) {
expectedReferringObjNum = (maxReferrers > expectedReferringObjNum) ? expectedReferringObjNum : maxReferrers;
}
// Compose Instances command to get referree objectID
CommandPacket InstancesCommand = new CommandPacket(
JDWPCommands.ReferenceTypeCommandSet.CommandSetID,
JDWPCommands.ReferenceTypeCommandSet.InstancesCommand);
long referreeObjTypeID = getClassIDBySignature(referreeObjSignature);
InstancesCommand.setNextValueAsReferenceTypeID(referreeObjTypeID);
InstancesCommand.setNextValueAsInt(1);
ReplyPacket checkedReply = debuggeeWrapper.vmMirror.performCommand(InstancesCommand);
InstancesCommand = null;
// Get the number of instances that returned.
int objNum = checkedReply.getNextValueAsInt();
// Get the tagged-objectID
byte tag = checkedReply.getNextValueAsByte();
long objectID = checkedReply.getNextValueAsObjectID();
// Compose ReferringObjects commnad
CommandPacket ReferringObjectsCommand = new CommandPacket(
JDWPCommands.ObjectReferenceCommandSet.CommandSetID,
JDWPCommands.ObjectReferenceCommandSet.ReferringObjectsCommand);
ReferringObjectsCommand.setNextValueAsObjectID(objectID);
ReferringObjectsCommand.setNextValueAsInt(maxReferrers);
// Perform ReferringObjects command and attain reply package
checkedReply = debuggeeWrapper.vmMirror
.performCommand(ReferringObjectsCommand);
ReferringObjectsCommand = null;
// Get referrer objects numbers
int referringObjects = checkedReply.getNextValueAsInt();
assertEquals(thisCommandName + "returned instances number is wrong.", expectedReferringObjNum, referringObjects,null,null);
long referrerTypeID = getClassIDBySignature(referrerObjSignature);
long referrerFieldID = debuggeeWrapper.vmMirror.getFieldID(
referrerTypeID, "isReferrer");
// Check the returned objects are referrer objects
for (int i = 0; i < referringObjects; i++) {
//Get the tagged-objectID
tag = checkedReply.getNextValueAsByte();
assertEquals(thisCommandName
+ "returned object tag is invalid.", 'L', tag, null, null);
objectID = checkedReply.getNextValueAsObjectID();
logWriter.println("=> ObjectID is: " + objectID);
values = debuggeeWrapper.vmMirror.getObjectReferenceValues(
objectID, new long[] { referrerFieldID });
boolean isReferrer = values[0].getBooleanValue();
if (!isReferrer) {
printErrorAndFail(thisCommandName
+ "returned object is not a referrer which references this object.");
}
}
logWriter.println("=> CHECK: PASSED: expected instances are returned:");
logWriter.println("=> Returned referringObjects number is" + referringObjects);
synchronizer.sendMessage(JPDADebuggeeSynchronizer.SGNL_CONTINUE);
logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": FINISH");
assertAllDataRead(checkedReply);
}
/**
* This testcase exercises ObjectReference.ReferringObjects command. <BR>
* Compose a ReferringObjects command with negative maxReferrers
* The vm should throw a ILLEGAL_ARGUMENT exception.
*/
public void testReferringObjects_IllegalArgument() {
String thisTestName = "testReferringObjects_IllegalArgument";
int maxReferrers = -1;
logWriter.println("==> " + thisTestName + " for " + thisCommandName + ": START...");
synchronizer.receiveMessage(JPDADebuggeeSynchronizer.SGNL_READY);
// Compose Instances command to get referree objectID
CommandPacket InstancesCommand = new CommandPacket(
JDWPCommands.ReferenceTypeCommandSet.CommandSetID,
JDWPCommands.ReferenceTypeCommandSet.InstancesCommand);
long referreeObjTypeID = getClassIDBySignature(referreeObjSignature);
InstancesCommand.setNextValueAsReferenceTypeID(referreeObjTypeID);
InstancesCommand.setNextValueAsInt(1);
ReplyPacket checkedReply = debuggeeWrapper.vmMirror.performCommand(InstancesCommand);
InstancesCommand = null;
// Get the number of instances that returned.
int objNum = checkedReply.getNextValueAsInt();
// Get the tagged-objectID
byte tag = checkedReply.getNextValueAsByte();
long objectID = checkedReply.getNextValueAsObjectID();
// Compose ReferringObjects commnad
CommandPacket ReferringObjectsCommand = new CommandPacket(
JDWPCommands.ObjectReferenceCommandSet.CommandSetID,
JDWPCommands.ObjectReferenceCommandSet.ReferringObjectsCommand);
ReferringObjectsCommand.setNextValueAsObjectID(objectID);
ReferringObjectsCommand.setNextValueAsInt(maxReferrers);
// Perform ReferringObjects command and attain reply package
checkedReply = debuggeeWrapper.vmMirror
.performCommand(ReferringObjectsCommand);
ReferringObjectsCommand = null;
short errorCode = checkedReply.getErrorCode();
if (errorCode != JDWPConstants.Error.NONE) {
if (errorCode == JDWPConstants.Error.NOT_IMPLEMENTED) {
logWriter.println("=> CHECK PASSED: Expected error (NOT_IMPLEMENTED) is returned");
return;
}
else if(errorCode == JDWPConstants.Error.ILLEGAL_ARGUMENT) {
logWriter.println("=> CHECK PASSED: Expected error (ILLEGAL_ARGUMENT) is returned");
return;
}
}
printErrorAndFail(thisCommandName + " should throw ILLEGAL_ARGUMENT exception when maxReferrers is negative.");
}
}
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