Package org.apache.tools.ant.taskdefs

Source Code of org.apache.tools.ant.taskdefs.ExecuteJavaTest

/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 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.
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* 4. The names "Ant" and "Apache Software
*    Foundation" must not be used to endorse or promote products derived
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* 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 org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Commandline;
import org.apache.tools.ant.util.JavaEnvUtils;

import java.io.File;

import junit.framework.TestCase;

/**
* Simple testcase for the ExecuteJava class - mostly stolen from
* ExecuteWatchdogTest.
*
* @author <a href="mailto:sbailliez@imediation.com">Stephane Bailliez</a>
* @author <a href="mailto:stefan.bodewig@epost.de">Stefan Bodewig</a>
*/
public class ExecuteJavaTest extends TestCase {

    private final static int TIME_OUT = 5000;

    private final static int CLOCK_ERROR=200;
    private final static int TIME_OUT_TEST=TIME_OUT-CLOCK_ERROR;
   
    private ExecuteJava ej;
    private Project project;

    public ExecuteJavaTest(String name) {
        super(name);
    }

    protected void setUp(){
        ej = new ExecuteJava();
        ej.setTimeout(new Long(TIME_OUT));
        project = new Project();
        project.setBasedir(".");
        ej.setClasspath(new Path(project, getTestClassPath()));
    }

    private Commandline getCommandline(int timetorun) throws Exception {
        Commandline cmd = new Commandline();
        cmd.setExecutable(TimeProcess.class.getName());
        cmd.createArgument().setValue(String.valueOf(timetorun));
        return cmd;
    }

    public void testNoTimeOut() throws Exception {
        Commandline cmd = getCommandline(TIME_OUT/2);
        ej.setJavaCommand(cmd);
        ej.execute(project);
        assertTrue("process should not have been killed", !ej.killedProcess());
    }

    // test that the watchdog ends the process
    public void testTimeOut() throws Exception {
        Commandline cmd = getCommandline(TIME_OUT*2);
        ej.setJavaCommand(cmd);
        long now = System.currentTimeMillis();
        ej.execute(project);
        long elapsed = System.currentTimeMillis() - now;
        assertTrue("process should have been killed", ej.killedProcess());

        assertTrue("elapse time of "+elapsed
                   +" ms is less than timeout value of "+TIME_OUT_TEST+" ms",
                   elapsed >= TIME_OUT_TEST);
        assertTrue("elapse time of "+elapsed
                   +" ms is greater than run value of "+(TIME_OUT*2)+" ms",
                   elapsed < TIME_OUT*2);
    }


    /**
     * 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 (JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_1_1)) {
            classpath +=   File.pathSeparator
                + System.getProperty("java.home")
                + File.separator + "lib"
                + File.separator + "classes.zip";
        }

        return classpath;
    }

}
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