src/tests/junit/org/apache/tools/ant/taskdefs/SubAntTest.java

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 *  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
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 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
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package org.apache.tools.ant.taskdefs;

import java.io.File;

import junit.framework.AssertionFailedError;

import org.apache.tools.ant.BuildEvent;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.BuildFileRule;
import org.apache.tools.ant.BuildListener;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;

import static org.apache.tools.ant.AntAssert.assertContains;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;


public class SubAntTest {

    @Rule
    public final BuildFileRule buildRule = new BuildFileRule();

    @Before
    public void setUp() {
        buildRule.configureProject("src/etc/testcases/taskdefs/subant.xml");
    }

    @Test
    public void testnodirs() {
        buildRule.executeTarget("testnodirs");
        assertEquals("No sub-builds to iterate on", buildRule.getLog());
    }

    // target must be specified
    @Test
    public void testgenericantfile() {
        File dir1 = buildRule.getProject().resolveFile(".");
        File dir2 = buildRule.getProject().resolveFile("subant/subant-test1");
        File dir3 = buildRule.getProject().resolveFile("subant/subant-test2");

        testBaseDirs("testgenericantfile",
                new String[] {dir1.getAbsolutePath(),
                        dir2.getAbsolutePath(),
                        dir3.getAbsolutePath()});
    }

    @Test
    public void testantfile() {
        File dir1 = buildRule.getProject().resolveFile(".");
        // basedir of subant/subant-test1/subant.xml is ..
        // therefore we expect here the subant/subant-test1 subdirectory
        File dir2 = buildRule.getProject().resolveFile("subant/subant-test1");
        // basedir of subant/subant-test2/subant.xml is ..
        // therefore we expect here the subant subdirectory
        File dir3 = buildRule.getProject().resolveFile("subant");

        testBaseDirs("testantfile",
                new String[] {dir1.getAbsolutePath(),
                        dir2.getAbsolutePath(),
                        dir3.getAbsolutePath()});

    }

    @Test
    public void testMultipleTargets() {
        buildRule.executeTarget("multipleTargets");
        assertContains("test1-one", buildRule.getLog());
        assertContains("test1-two", buildRule.getLog());
        assertContains("test2-one", buildRule.getLog());
        assertContains("test2-two", buildRule.getLog());
    }

    @Test
    public void testMultipleTargetsOneDoesntExist_FOEfalse() {
        buildRule.executeTarget("multipleTargetsOneDoesntExist_FOEfalse");
        assertContains("Target \"three\" does not exist in the project \"subant\"", buildRule.getLog());
    }

    @Test
    public void testMultipleTargetsOneDoesntExist_FOEtrue() {
        try {
            buildRule.executeTarget("multipleTargetsOneDoesntExist_FOEtrue");
            fail("BuildException expected: Calling not existent target");
        } catch (BuildException ex) {
            assertContains("Target \"three\" does not exist in the project \"subant\"", ex.getMessage());
        }
    }

    protected void testBaseDirs(String target, String[] dirs) {
        SubAntTest.BasedirChecker bc = new SubAntTest.BasedirChecker(dirs);
        buildRule.getProject().addBuildListener(bc);
        buildRule.executeTarget(target);
        AssertionFailedError ae = bc.getError();
        if (ae != null) {
            throw ae;
        }
        buildRule.getProject().removeBuildListener(bc);
    }

    private class BasedirChecker implements BuildListener {
        private String[] expectedBasedirs;
        private int calls = 0;
        private AssertionFailedError error;

        BasedirChecker(String[] dirs) {
            expectedBasedirs = dirs;
        }

        public void buildStarted(BuildEvent event) {
        }

        public void buildFinished(BuildEvent event) {
        }

        public void targetFinished(BuildEvent event) {
        }

        public void taskStarted(BuildEvent event) {
        }

        public void taskFinished(BuildEvent event) {
        }

        public void messageLogged(BuildEvent event) {
        }

        public void targetStarted(BuildEvent event) {
            if (event.getTarget().getName().equals("")) {
                return;
            }
            if (error == null) {
                try {
                    assertEquals(expectedBasedirs[calls++],
                            event.getProject().getBaseDir().getAbsolutePath());
                } catch (AssertionFailedError e) {
                    error = e;
                }
            }
        }

        AssertionFailedError getError() {
            return error;
        }

    }


}