| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, if |
| * any, must include the following acknowlegement: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowlegement may appear in the software itself, |
| * if and wherever such third-party acknowlegements normally appear. |
| * |
| * 4. The names "The Jakarta Project", "Ant", and "Apache Software |
| * Foundation" must not be used to endorse or promote products derived |
| * from this software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache" |
| * nor may "Apache" appear in their names without prior written |
| * permission of the Apache Group. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| package org.apache.tools.ant.taskdefs; |
| |
| import org.apache.tools.ant.Project; |
| |
| import java.net.*; |
| import junit.framework.*; |
| import java.io.*; |
| |
| /** |
| * Simple testcase for the ExecuteWatchdog class. |
| * |
| * @author <a href="mailto:sbailliez@imediation.com">Stephane Bailliez</a> |
| */ |
| public class ExecuteWatchdogTest extends TestCase { |
| |
| private final static int TIME_OUT = 5000; |
| |
| private final static String TEST_CLASSPATH = getTestClassPath(); |
| |
| private ExecuteWatchdog watchdog; |
| |
| public ExecuteWatchdogTest(String name) { |
| super(name); |
| } |
| |
| protected void setUp(){ |
| watchdog = new ExecuteWatchdog(TIME_OUT); |
| } |
| |
| /** |
| * Dangerous method to obtain the classpath for the test. This is |
| * severely tighted to the build.xml properties. |
| */ |
| private static String getTestClassPath(){ |
| String classpath = System.getProperty("build.tests"); |
| if (classpath == null) { |
| System.err.println("WARNING: 'build.tests' property is not available !"); |
| classpath = System.getProperty("java.class.path"); |
| } |
| |
| // JDK 1.1 needs classes.zip in -classpath argument |
| if (Project.getJavaVersion() == Project.JAVA_1_1) { |
| classpath += File.pathSeparator |
| + System.getProperty("java.home") |
| + File.separator + "lib" |
| + File.separator + "classes.zip"; |
| } |
| |
| return classpath; |
| } |
| |
| private Process getProcess(int timetorun) throws Exception { |
| String[] cmdArray = { |
| "java", "-classpath", TEST_CLASSPATH, |
| TimeProcess.class.getName(), String.valueOf(timetorun) |
| }; |
| //System.out.println("Testing with classpath: " + System.getProperty("java.class.path")); |
| return Runtime.getRuntime().exec(cmdArray); |
| } |
| |
| private String getErrorOutput(Process p) throws Exception { |
| BufferedReader err = new BufferedReader( new InputStreamReader(p.getErrorStream()) ); |
| StringBuffer buf = new StringBuffer(); |
| String line; |
| while ( (line = err.readLine()) != null){ |
| buf.append(line); |
| } |
| return buf.toString(); |
| } |
| |
| private int waitForEnd(Process p) throws Exception { |
| int retcode = p.waitFor(); |
| if (retcode != 0){ |
| String err = getErrorOutput(p); |
| if (err.length() > 0){ |
| System.err.println("ERROR:"); |
| System.err.println(err); |
| } |
| } |
| return retcode; |
| } |
| |
| public void testNoTimeOut() throws Exception { |
| Process process = getProcess(TIME_OUT/2); |
| watchdog.start(process); |
| int retCode = waitForEnd(process); |
| assert("process should not have been killed", !watchdog.killedProcess()); |
| assertEquals(0, retCode); |
| } |
| |
| // test that the watchdog ends the process |
| public void testTimeOut() throws Exception { |
| Process process = getProcess(TIME_OUT*2); |
| long now = System.currentTimeMillis(); |
| watchdog.start(process); |
| int retCode = process.waitFor(); |
| long elapsed = System.currentTimeMillis() - now; |
| assert("process should have been killed", watchdog.killedProcess()); |
| // assert("return code is invalid: " + retCode, retCode!=0); |
| assert("elapse time is less than timeout value", elapsed > TIME_OUT); |
| assert("elapse time is greater than run value", elapsed < TIME_OUT*2); |
| } |
| |
| // test a process that runs and failed |
| public void testFailed() throws Exception { |
| Process process = getProcess(-1); // process should abort |
| watchdog.start(process); |
| int retCode = process.waitFor(); |
| assert("process should not have been killed", !watchdog.killedProcess()); |
| assert("return code is invalid: " + retCode, retCode!=0); |
| } |
| |
| public void testManualStop() throws Exception { |
| final Process process = getProcess(TIME_OUT*2); |
| watchdog.start(process); |
| |
| // I assume that starting this takes less than TIME_OUT/2 ms... |
| Thread thread = new Thread(){ |
| public void run(){ |
| try { |
| process.waitFor(); |
| } catch(InterruptedException e){ |
| // not very nice but will do the job |
| fail("process interrupted in thread"); |
| } |
| } |
| }; |
| thread.start(); |
| |
| // wait for TIME_OUT/2, there should be about TIME_OUT/2 ms remaining before timeout |
| thread.join(TIME_OUT/2); |
| |
| // now stop the watchdog. |
| watchdog.stop(); |
| |
| // wait for the thread to die, should be the end of the process |
| thread.join(); |
| |
| // process should be dead and well finished |
| assertEquals(0, process.exitValue()); |
| assert("process should not have been killed", !watchdog.killedProcess()); |
| } |
| |
| public static class TimeProcess { |
| public static void main(String[] args) throws Exception { |
| int time = Integer.parseInt(args[0]); |
| if (time < 1) { |
| throw new IllegalArgumentException("Invalid time: " + time); |
| } |
| Thread.sleep(time); |
| } |
| } |
| } |