Ant example source code file (CommandlineTest.java)

This example Ant source code file (CommandlineTest.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

case, case, commandline, commandlinetest, double, doublequoted, doublequoted, nr, simple, single, singlequoted, singlequoted, string, string

The CommandlineTest.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.BuildException;

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

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

    public void testTokenizer() {
        String[] s = Commandline.translateCommandline("1 2 3");
        assertEquals("Simple case", 3, s.length);
        for (int i=0; i<3; i++) {
            assertEquals(""+(i+1), s[i]);
        }

        s = Commandline.translateCommandline("");
        assertEquals("empty string", 0, s.length);

        s = Commandline.translateCommandline(null);
        assertEquals("null", 0, s.length);

        s = Commandline.translateCommandline("1 \'2\' 3");
        assertEquals("Simple case with single quotes", 3, s.length);
        assertEquals("Single quotes have been stripped", "2", s[1]);

        s = Commandline.translateCommandline("1 \"2\" 3");
        assertEquals("Simple case with double quotes", 3, s.length);
        assertEquals("Double quotes have been stripped", "2", s[1]);

        s = Commandline.translateCommandline("1 \"2 3\" 4");
        assertEquals("Case with double quotes and whitespace", 3, s.length);
        assertEquals("Double quotes stripped, space included", "2 3", s[1]);

        s = Commandline.translateCommandline("1 \"2\'3\" 4");
        assertEquals("Case with double quotes around single quote", 3, s.length);
        assertEquals("Double quotes stripped, single quote included", "2\'3",
                     s[1]);

        s = Commandline.translateCommandline("1 \'2 3\' 4");
        assertEquals("Case with single quotes and whitespace", 3, s.length);
        assertEquals("Single quotes stripped, space included", "2 3", s[1]);

        s = Commandline.translateCommandline("1 \'2\"3\' 4");
        assertEquals("Case with single quotes around double quote", 3, s.length);
        assertEquals("Single quotes stripped, double quote included", "2\"3",
                     s[1]);

        // \ doesn't have a special meaning anymore - this is different from
        // what the Unix sh does but causes a lot of problems on DOS
        // based platforms otherwise
        s = Commandline.translateCommandline("1 2\\ 3 4");
        assertEquals("case with quoted whitespace", 4, s.length);
        assertEquals("backslash included", "2\\", s[1]);

        // "" should become a single empty argument, same for ''
        // PR 5906
        s = Commandline.translateCommandline("\"\" a");
        assertEquals("Doublequoted null arg prepend", 2, s.length);
        assertEquals("Doublequoted null arg prepend", "", s[0]);
        assertEquals("Doublequoted null arg prepend", "a", s[1]);
        s = Commandline.translateCommandline("a \"\"");
        assertEquals("Doublequoted null arg append", 2, s.length);
        assertEquals("Doublequoted null arg append", "a", s[0]);
        assertEquals("Doublequoted null arg append", "", s[1]);
        s = Commandline.translateCommandline("\"\"");
        assertEquals("Doublequoted null arg", 1, s.length);
        assertEquals("Doublequoted null arg", "", s[0]);

        s = Commandline.translateCommandline("\'\' a");
        assertEquals("Singlequoted null arg prepend", 2, s.length);
        assertEquals("Singlequoted null arg prepend", "", s[0]);
        assertEquals("Singlequoted null arg prepend", "a", s[1]);
        s = Commandline.translateCommandline("a \'\'");
        assertEquals("Singlequoted null arg append", 2, s.length);
        assertEquals("Singlequoted null arg append", "a", s[0]);
        assertEquals("Singlequoted null arg append", "", s[1]);
        s = Commandline.translateCommandline("\'\'");
        assertEquals("Singlequoted null arg", 1, s.length);
        assertEquals("Singlequoted null arg", "", s[0]);

        // now to the expected failures

        try {
            s = Commandline.translateCommandline("a \'b c");
            fail("unbalanced single quotes undetected");
        } catch (BuildException be) {
            assertEquals("unbalanced quotes in a \'b c", be.getMessage());
        }

        try {
            s = Commandline.translateCommandline("a \"b c");
            fail("unbalanced double quotes undetected");
        } catch (BuildException be) {
            assertEquals("unbalanced quotes in a \"b c", be.getMessage());
        }
    }

    public void testToString() {
        assertEquals("", Commandline.toString(new String[0]));
        assertEquals("", Commandline.toString(null));
        assertEquals("1 2 3", Commandline.toString(new String[] {"1", "2", "3"}));
        assertEquals("1 \"2 3\"", Commandline.toString(new String[] {"1", "2 3"}));
        assertEquals("1 \"2\'3\"", Commandline.toString(new String[] {"1", "2\'3"}));
        assertEquals("1 \'2\"3\'", Commandline.toString(new String[] {"1", "2\"3"}));
    }

    public void testAwkCommand(){
        Commandline c = new Commandline();
        c.setExecutable("awk");
        c.createArgument().setValue("'NR == 2 { print $NF }'");
        String[] s = c.getCommandline();
        assertNotNull(s);
        assertEquals(2, s.length);
        assertEquals("awk", s[0]);
        assertEquals("'NR == 2 { print $NF }'", s[1]);
    }
}