Ant example source code file (CommandlineJavaTest.java)

This example Ant source code file (CommandlineJavaTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Ant tags/keywords

assertions, commandlinejava, commandlinejava, commandlinejavatest, commandlinejavatest, dx=y, exception, exception, nullpointerexception, project, propertyset, string, string, testcase

The CommandlineJavaTest.java source code

/*
 *  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.tools.ant.types;

import junit.framework.TestCase;

import org.apache.tools.ant.MagicNames;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.util.JavaEnvUtils;

/**
 * JUnit 3 testcases for org.apache.tools.ant.CommandlineJava
 *
 */
public class CommandlineJavaTest extends TestCase {

    private String cloneVm;

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

    private Project project;

    public void setUp() {
        project = new Project();
        project.setBasedir(System.getProperty("root"));
        project.setProperty("build.sysclasspath", "ignore");
        cloneVm = System.getProperty("ant.build.clonevm");
        if (cloneVm != null) {
            System.setProperty("ant.build.clonevm", "false");
        }
    }

    public void tearDown() {
        if (cloneVm != null) {
            System.setProperty("ant.build.clonevm", cloneVm);
        }
    }

    public void testGetCommandline() throws Exception {
        CommandlineJava c = new CommandlineJava();
        c.createArgument().setValue("org.apache.tools.ant.CommandlineJavaTest");
        c.setClassname("junit.textui.TestRunner");
        c.createVmArgument().setValue("-Djava.compiler=NONE");
        String[] s = c.getCommandline();
        assertEquals("no classpath", 4, s.length);
        /*
         * After changing CommandlineJava to search for the java
         * executable, I don't know, how to tests the value returned
         * here without using the same logic as applied in the class
         * itself.
         *
         * assertTrue("no classpath", "java", s[0]);
         */
        assertEquals("no classpath", "-Djava.compiler=NONE", s[1]);
        assertEquals("no classpath", "junit.textui.TestRunner", s[2]);
        assertEquals("no classpath",
                     "org.apache.tools.ant.CommandlineJavaTest", s[3]);
        try {
            CommandlineJava c2 = (CommandlineJava) c.clone();
        } catch (NullPointerException ex) {
            fail("cloning should work without classpath specified");
        }

        c.createClasspath(project).setLocation(project.resolveFile("build.xml"));
        c.createClasspath(project).setLocation(project.resolveFile(
            System.getProperty(MagicNames.ANT_HOME)+"/lib/ant.jar"));
        s = c.getCommandline();
        assertEquals("with classpath", 6, s.length);
        //        assertEquals("with classpath", "java", s[0]);
        assertEquals("with classpath", "-Djava.compiler=NONE", s[1]);
        assertEquals("with classpath", "-classpath", s[2]);
        assertTrue("build.xml contained",
               s[3].indexOf("build.xml"+java.io.File.pathSeparator) >= 0);
        assertTrue("ant.jar contained", s[3].endsWith("ant.jar"));
        assertEquals("with classpath", "junit.textui.TestRunner", s[4]);
        assertEquals("with classpath",
                     "org.apache.tools.ant.CommandlineJavaTest", s[5]);
    }

    public void testJarOption() throws Exception {
        CommandlineJava c = new CommandlineJava();
        c.createArgument().setValue("arg1");
        c.setJar("myfile.jar");
        c.createVmArgument().setValue("-classic");
        c.createVmArgument().setValue("-Dx=y");
        String[] s = c.getCommandline();
        assertEquals("-classic", s[1]);
        assertEquals("-Dx=y", s[2]);
        assertEquals("-jar", s[3]);
        assertEquals("myfile.jar", s[4]);
        assertEquals("arg1", s[5]);
    }

    public void testSysproperties() {
        String currentClasspath = System.getProperty("java.class.path");
        assertNotNull(currentClasspath);
        assertNull(System.getProperty("key"));
        CommandlineJava c = new CommandlineJava();
        Environment.Variable v = new Environment.Variable();
        v.setKey("key");
        v.setValue("value");
        c.addSysproperty(v);

        project.setProperty("key2", "value2");
        PropertySet ps = new PropertySet();
        ps.setProject(project);
        ps.appendName("key2");
        c.addSyspropertyset(ps);

        try {
            c.setSystemProperties();
            String newClasspath = System.getProperty("java.class.path");
            assertNotNull(newClasspath);
            assertEquals(currentClasspath, newClasspath);
            assertNotNull(System.getProperty("key"));
            assertEquals("value", System.getProperty("key"));
            assertTrue(System.getProperties().containsKey("java.class.path"));
            assertNotNull(System.getProperty("key2"));
            assertEquals("value2", System.getProperty("key2"));
        } finally {
            c.restoreSystemProperties();
        }
        assertNull(System.getProperty("key"));
        assertNull(System.getProperty("key2"));
    }

    public void testAssertions() throws Exception {
        if (JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_1_2)
            || JavaEnvUtils.isJavaVersion(JavaEnvUtils.JAVA_1_3)) {
            return;
        }

        CommandlineJava c = new CommandlineJava();
        c.createArgument().setValue("org.apache.tools.ant.CommandlineJavaTest");
        c.setClassname("junit.textui.TestRunner");
        c.createVmArgument().setValue("-Djava.compiler=NONE");
        Assertions a = new Assertions();
        a.setProject(project);
        Assertions.EnabledAssertion ea = new Assertions.EnabledAssertion();
        ea.setClass("junit.textui.TestRunner");
        a.addEnable(ea);
        c.setAssertions(a);

        String[] expected = new String[] {
            null,
            "-Djava.compiler=NONE",
            "-ea:junit.textui.TestRunner",
            "junit.textui.TestRunner",
            "org.apache.tools.ant.CommandlineJavaTest",
        };
            
        // only the second iteration would pass because of PR 27218
        for (int i = 0; i < 3; i++) {
            String[] s = c.getCommandline();
            assertEquals(expected.length, s.length);
            for (int j = 1; j < expected.length; j++) {
                assertEquals(expected[j], s[j]);
            }
        }
        CommandlineJava c2 = (CommandlineJava) c.clone();
        String[] s = c2.getCommandline();
        assertEquals(expected.length, s.length);
        for (int j = 1; j < expected.length; j++) {
            assertEquals(expected[j], s[j]);
        }
    }

}