Ant example source code file (ANTLRTest.java)

This example Ant source code file (ANTLRTest.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

antlrtest, antlrtest, calc, file, filenamefilter, filenamefilter, htmlfilter, invalid, io, skipped, skipped, string, string, taskdefs_dir, unable

The ANTLRTest.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.taskdefs.optional;

import java.io.*;
import org.apache.tools.ant.BuildFileTest;

/**
 * If you want to run tests, it is highly recommended
 * to download ANTLR (www.antlr.org), build the 'antlrall.jar' jar
 * with  <code>make antlr-all.jar and drop the jar (about 300KB) into
 * Ant lib.
 * - Running w/ the default antlr.jar (70KB) does not work (missing class)
 *
 * Unless of course you specify the ANTLR classpath in your
 * system classpath. (see ANTLR install.html)
 *
 */
public class ANTLRTest extends BuildFileTest {

    private final static String TASKDEFS_DIR = "src/etc/testcases/taskdefs/optional/antlr/";

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

    public void setUp() {
        configureProject(TASKDEFS_DIR + "antlr.xml");
    }

    public void tearDown() {
        executeTarget("cleanup");
    }

    public void test1() {
        expectBuildException("test1", "required argument, target, missing");
    }

    public void test2() {
        expectBuildException("test2", "Invalid output directory");
    }

    public void test3() {
        executeTarget("test3");
    }

    public void test4() {
        executeTarget("test4");
    }

    public void test5() {
        // should print "panic: Cannot find importVocab file 'JavaTokenTypes.txt'"
        // since it needs to run java.g first before java.tree.g
        expectBuildException("test5", "ANTLR returned: 1");
    }

    public void test6() {
        executeTarget("test6");
    }

    public void test7() {
        expectBuildException("test7", "Unable to determine generated class");
    }

    /**
     * This is a negative test for the super grammar (glib) option.
     */
    public void test8() {
        expectBuildException("test8", "Invalid super grammar file");
    }

    /**
     * This is a positive test for the super grammar (glib) option.  ANTLR
     * will throw an error if everything is not correct.
     */
    public void test9() {
        executeTarget("test9");
    }

    /**
     * This test creates an html-ized version of the calculator grammar.
     * The sanity check is simply whether or not an html file was generated.
     */
    public void test10() {
        executeTarget("test10");
        File outputDirectory = new File(System.getProperty("root"), TASKDEFS_DIR + "antlr.tmp");
        String[] calcFiles = outputDirectory.list(new HTMLFilter());
        assertTrue(calcFiles.length > 0);
    }

    /**
     * This is just a quick sanity check to run the diagnostic option and
     * make sure that it doesn't throw any funny exceptions.
     */
    public void test11() {
        executeTarget("test11");
    }

    /**
     * This is just a quick sanity check to run the trace option and
     * make sure that it doesn't throw any funny exceptions.
     */
    public void test12() {
        executeTarget("test12");
    }

    /**
     * This is just a quick sanity check to run all the rest of the
     * trace options (traceLexer, traceParser, and traceTreeWalker) to
     * make sure that they don't throw any funny exceptions.
     */
    public void test13() {
        executeTarget("test13");
    }

    public void testNoRecompile() {
        executeTarget("test9");
        assertEquals(-1, getFullLog().indexOf("Skipped grammar file."));
        executeTarget("noRecompile");
        assertTrue(-1 != getFullLog().indexOf("Skipped grammar file."));
    }

    public void testNormalRecompile() {
        executeTarget("test9");
        assertEquals(-1, getFullLog().indexOf("Skipped grammar file."));
        executeTarget("normalRecompile");
        assertEquals(-1, getFullLog().indexOf("Skipped grammar file."));
    }

    // Bugzilla Report 12961
    public void testSupergrammarChangeRecompile() {
        executeTarget("test9");
        assertEquals(-1, getFullLog().indexOf("Skipped grammar file."));
        executeTarget("supergrammarChangeRecompile");
        assertEquals(-1, getFullLog().indexOf("Skipped grammar file."));
    }
}

class CalcFileFilter implements FilenameFilter {
    public boolean accept(File dir, String name) {
        return name.startsWith("Calc");
    }
}

class HTMLFilter implements FilenameFilter {
    public boolean accept(File dir, String name) {
        return name.endsWith("html");
    }
}