Ant example source code file (PropertyExpansionTest.java)

This example Ant source code file (PropertyExpansionTest.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

buildfiletest, class, class, classsubclass, classsubclass, expanded, expandedexpanded, expandedexpanded, propertyexpansiontest, propertyexpansiontest, string

The PropertyExpansionTest.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;

/**
 * class to look at how we expand properties
 */
public class PropertyExpansionTest extends BuildFileTest {


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

    /**
     * we bind to an existing test file because we are too lazy to write our
     * own, and we don't really care what it is
     */
    public void setUp() {
        configureProject("src/etc/testcases/core/immutable.xml");
    }

    /**
     * run through the test cases of expansion
     */
    public void testPropertyExpansion() {
        assertExpandsTo("","");
        assertExpandsTo("$","$");
        assertExpandsTo("$$-","$-");
        assertExpandsTo("$$","$");
        project.setProperty("expanded","EXPANDED");
        assertExpandsTo("a${expanded}b","aEXPANDEDb");
        assertExpandsTo("${expanded}${expanded}","EXPANDEDEXPANDED");
        assertExpandsTo("$$$","$$");
        assertExpandsTo("$$$$-","$$-");
        assertExpandsTo("","");
        assertExpandsTo("Class$$subclass","Class$subclass");
    }

    /**
     * new things we want
     */
    public void testDollarPassthru() {
        assertExpandsTo("$-","$-");
        assertExpandsTo("Class$subclass","Class$subclass");
        assertExpandsTo("$$$-","$$-");
        assertExpandsTo("$$$$$","$$$");
        assertExpandsTo("${unassigned.property}","${unassigned.property}");
        assertExpandsTo("a$b","a$b");
        assertExpandsTo("$}}","$}}");
    }


    /**
     * old things we dont want; not a test no more
     */
    public void oldtestQuirkyLegacyBehavior() {
        assertExpandsTo("Class$subclass","Classsubclass");
        assertExpandsTo("$$$-","$-");
        assertExpandsTo("a$b","ab");
        assertExpandsTo("$}}","}}");
    }

    /**
     * little helper method to validate stuff
     */
    private void assertExpandsTo(String source,String expected) {
        String actual=project.replaceProperties(source);
        assertEquals(source,expected,actual);
    }

//end class
}