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Groovy example source code file (GStringTest.java)

This example Groovy source code file (GStringTest.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 - Groovy tags/keywords

bob, comparable, dummygstring, dummygstring, groovytestcase, gstring, gstringtest, hello, hello, james, james, object, object, string

The Groovy GStringTest.java source code

 * Copyright 2003-2011 the original author or authors.
 * Licensed 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package groovy.lang;

import groovy.util.GroovyTestCase;
import org.codehaus.groovy.runtime.InvokerHelper;

 * Tests the use of the structured Attribute type
 * @author <a href="mailto:james@coredevelopers.net">James Strachan
 * @version $Revision: 21515 $
public class GStringTest extends GroovyTestCase {

    public void testIterateOverText() {
        DummyGString compString = new DummyGString(new Object[]{"James"});
        assertArrayEquals(new String[]{"Hello ", "!"}, compString.getStrings());
        assertArrayEquals(new Object[]{"James"}, compString.getValues());
        assertEquals("Hello James!", compString.toString());

    public void testAppendString() {
        DummyGString a = new DummyGString(new Object[]{"James"});
        GString result = a.plus(" how are you?");
        assertEquals("Hello James! how are you?", result.toString());
        assertEquals('J', a.charAt(6));
        assertEquals("o J", a.subSequence(4, 7));

    public void testAppendString2() {
        DummyGString a = new DummyGString(new Object[]{"James"}, new String[]{"Hello "});
        GString result = a.plus(" how are you?");
        System.out.println("Strings: " + InvokerHelper.toString(result.getStrings()));
        System.out.println("Values: " + InvokerHelper.toString(result.getValues()));
        assertEquals("Hello James how are you?", result.toString());

    public void testAppendGString() {
        DummyGString a = new DummyGString(new Object[]{"James"});
        DummyGString b = new DummyGString(new Object[]{"Bob"});
        GString result = a.plus(b);
        assertEquals("Hello James!Hello Bob!", result.toString());

    public void testAppendGString2() {
        DummyGString a = new DummyGString(new Object[]{"James"}, new String[]{"Hello "});
        DummyGString b = new DummyGString(new Object[]{"Bob"}, new String[]{"Hello "});
        GString result = a.plus(b);
        assertEquals("Hello JamesHello Bob", result.toString());

    public void testEqualsAndHashCode() {
        DummyGString a = new DummyGString(new Object[]{new Integer(1)});
        DummyGString b = new DummyGString(new Object[]{new Long(1)});
        Comparable c = new DummyGString(new Object[]{new Double(2.3)});

        assertTrue("a == b", a.equals(b));
        assertEquals("hashcode a == b", a.hashCode(), b.hashCode());
        assertFalse("a != c", a.equals(c));
        assertTrue("hashcode a != c", a.hashCode() != c.hashCode());
        assertEquals("a <=> b", 0, a.compareTo(b));
        assertEquals("a <=> b", -1, a.compareTo(c));

Other Groovy examples (source code examples)

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