278 lines
9.9 KiB
Java
278 lines
9.9 KiB
Java
/*
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* Copyright (c) 2002, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package nsk.jdi.BScenarios.hotswap;
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import nsk.share.*;
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import nsk.share.jpda.*;
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import nsk.share.jdi.*;
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import com.sun.jdi.*;
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import com.sun.jdi.request.*;
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import com.sun.jdi.event.*;
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import java.util.*;
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import java.io.*;
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/**
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* This test is from the group of so-called Borland's scenarios and
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* implements the following test case: <br>
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* Suite 3 - Hot Swap <br>
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* Test case: TC5 <br>
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* Description: After point of execution, same method - stepping <br>
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* Steps: 1.Set breakpoint at line 24 (call to b() <br>
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* from a()) <br>
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* 2.Debug Main <br>
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* 3.Insert as next line after point of <br>
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* execution: System.err.println("foo"); <br>
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* 4.Smart Swap <br>
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* 5.F7 to step into <br>
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* X. Steps into method b() <br>
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* <br>
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* The description was drown up according to steps under JBuilder.
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*
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* Of course, the test has own line numbers and method/class names and
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* works as follow:
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* When the test is starting debugee, debugger sets breakpoint at
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* the 38th line (method <code>method_A</code>).
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* After the breakpoint is reached, debugger redefines debugee adding
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* a new line into <code>method_A</code>, creates <code>StepRequest</code> and
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* resumes debugee. When the location of the current <code>StepEvent</code> is
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* in <code>method_B</code>, created <code>StepRequest</code> is disabled.
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* Working of debugger and debugee is synchronized via IOPipe channel.
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*/
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public class tc05x001 {
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public final static String UNEXPECTED_STRING = "***Unexpected exception ";
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private final static String prefix = "nsk.jdi.BScenarios.hotswap.";
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private final static String debuggerName = prefix + "tc05x001";
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private final static String debugeeName = debuggerName + "a";
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public final static String PERFORM_SGL = "perform";
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private final static String newClassFile = "newclass" + File.separator
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+ debugeeName.replace('.',File.separatorChar)
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+ ".class";
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private static int exitStatus;
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private static Log log;
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private static Debugee debugee;
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private static long waitTime;
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private static String testDir;
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private static final String firstMethodName = "method_B";
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private int eventCount;
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private int expectedEventCount = 2;
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private ClassType debugeeClass;
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StepRequest stepRequest = null;
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private static void display(String msg) {
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log.display(msg);
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}
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private static void complain(String msg) {
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log.complain("debugger FAILURE> " + msg + "\n");
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}
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public static void main(String argv[]) {
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System.exit(Consts.JCK_STATUS_BASE + run(argv, System.out));
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}
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public static int run(String argv[], PrintStream out) {
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exitStatus = Consts.TEST_PASSED;
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tc05x001 thisTest = new tc05x001();
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ArgumentHandler argHandler = new ArgumentHandler(argv);
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log = new Log(out, argHandler);
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testDir = argv[0];
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waitTime = argHandler.getWaitTime() * 60000;
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debugee = Debugee.prepareDebugee(argHandler, log, debugeeName);
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try {
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thisTest.execTest();
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} catch (Throwable e) {
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exitStatus = Consts.TEST_FAILED;
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e.printStackTrace();
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} finally {
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debugee.resume();
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debugee.quit();
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}
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display("Test finished. exitStatus = " + exitStatus);
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return exitStatus;
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}
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private void execTest() throws Failure {
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if (!debugee.VM().canRedefineClasses()) {
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display("\n>>>canRedefineClasses() is false<<< test canceled.\n");
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return;
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}
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debugeeClass = (ClassType)debugee.classByName(debugeeName);
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display("\nTEST BEGINS");
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display("===========");
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debugee.VM().suspend();
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display("Tested class\t:" + debugeeClass.name());
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BreakpointRequest brkp = debugee.setBreakpoint(debugeeClass,
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tc05x001a.brkpMethodName,
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tc05x001a.brkpLineNumber);
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debugee.resume();
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debugee.sendSignal(PERFORM_SGL);
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BreakpointEvent brkpEvent = waitBreakpointEvent(brkp, waitTime);
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display("\nredefining...");
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redefineDebugee();
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ThreadReference thread = brkpEvent.thread();
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EventRequestManager evm = debugee.getEventRequestManager();
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display("creating step request INTO...");
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stepRequest = evm.createStepRequest(thread, StepRequest.STEP_LINE,
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StepRequest.STEP_INTO);
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stepRequest.addClassFilter(debugeeClass);
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stepRequest.enable();
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debugee.resume();
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boolean cmp = false;
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StepEvent stepEvent;
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Event event;
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for (int i = 0; i < 3; i++) {
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// waiting the breakpoint event
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display("waiting step event...");
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try {
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event = debugee.waitingEvent(stepRequest, waitTime);
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} catch (Exception e) {
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stepRequest.disable();
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throw new Failure(UNEXPECTED_STRING + e);
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}
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if (!(event instanceof StepEvent )) {
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stepRequest.disable();
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throw new Failure("StepEvent didn't arrive");
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}
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if (hitStep((StepEvent )event)) {
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break;
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}
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debugee.resume();
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}
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evm.deleteEventRequest(stepRequest);
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debugee.resume();
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display("=============");
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display("TEST FINISHES\n");
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}
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private void redefineDebugee() {
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Map<com.sun.jdi.ReferenceType,byte[]> mapBytes;
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boolean alreadyComplained = false;
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mapBytes = mapClassToBytes(newClassFile);
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try {
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debugee.VM().redefineClasses(mapBytes);
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} catch (Exception e) {
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throw new Failure(UNEXPECTED_STRING + e);
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}
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}
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private Map<com.sun.jdi.ReferenceType,byte[]> mapClassToBytes(String fileName) {
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display("class-file\t:" + fileName);
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File fileToBeRedefined = new File(testDir + File.separator + fileName);
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int fileToRedefineLength = (int )fileToBeRedefined.length();
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byte[] arrayToRedefine = new byte[fileToRedefineLength];
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FileInputStream inputFile;
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try {
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inputFile = new FileInputStream(fileToBeRedefined);
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} catch (FileNotFoundException e) {
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throw new Failure(UNEXPECTED_STRING + e);
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}
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try {
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inputFile.read(arrayToRedefine);
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inputFile.close();
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} catch (IOException e) {
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throw new Failure(UNEXPECTED_STRING + e);
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}
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HashMap<com.sun.jdi.ReferenceType,byte[]> mapForClass = new HashMap<com.sun.jdi.ReferenceType,byte[]>();
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mapForClass.put(debugeeClass, arrayToRedefine);
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return mapForClass;
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}
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private BreakpointEvent waitBreakpointEvent(BreakpointRequest brkp, long waitTime) {
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Event event;
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try {
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event = debugee.waitingEvent(brkp, waitTime);
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} catch (InterruptedException e) {
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throw new Failure(UNEXPECTED_STRING + e);
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}
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if (!(event instanceof BreakpointEvent )) {
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throw new Failure("BreakpointEvent didn't arrive");
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}
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return (BreakpointEvent )event;
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}
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private boolean hitStep(StepEvent event) {
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locationInfo(event);
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String methodName = event.location().method().name();
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boolean ret = methodName.compareTo(firstMethodName) != 0;
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if (ret) {
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if (!event.location().method().isObsolete()) {
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complain("Unexpected event" + event);
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exitStatus = Consts.TEST_FAILED;
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} else {
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display("!!!Expected event location at \"" + methodName + "\"");
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}
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} else {
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display("!!!Expected event location at \"" + methodName + "\"");
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stepRequest.disable();
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}
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display("");
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return !ret;
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}
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private void locationInfo(LocatableEvent event) {
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eventCount++;
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display("event info: #" + eventCount);
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display("\tthread\t- " + event.thread().name());
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try {
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display("\tsource\t- " + event.location().sourceName());
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display("\tmethod\t- " + event.location().method().name());
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display("\tline\t- " + event.location().lineNumber());
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} catch (AbsentInformationException e) {
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}
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}
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}
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