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Groovy example source code file (TupleTest.java)

This example Groovy source code file (TupleTest.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

indexout, indexout, indexoutofboundsexception, list, object, object, should, should, size, testcase, tuple, tuple, tupletest, util

The Groovy TupleTest.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 junit.framework.TestCase;

import java.util.List;

 * @author James Strachan
 * @version $Revision: 21515 $
public class TupleTest extends TestCase {

    final Object[] data = {"a", "b", "c"};
    final Tuple t = new Tuple(data);

    public void testSize() {
        assertEquals("Size of " + t, 3, t.size());

        assertEquals("get(0)", "a", t.get(0));
        assertEquals("get(1)", "b", t.get(1));

    public void testGetOutOfTuple() {
        try {
            fail("Should have thrown IndexOut");
        catch (IndexOutOfBoundsException e) {
            // worked
        try {
            fail("Should have thrown IndexOut");
        catch (IndexOutOfBoundsException e) {
            // worked


    public void testContains() {
        assertTrue("contains a", t.contains("a"));
        assertTrue("contains b", t.contains("b"));

    public void testSubList() {
        List s = t.subList(1, 2);

        assertTrue("is a Tuple", s instanceof Tuple);

        assertEquals("size", 1, s.size());

    public void testHashCodeAndEquals() {
        Tuple a = new Tuple(new Object[]{"a", "b", "c"});
        Tuple b = new Tuple(new Object[]{"a", "b", "c"});
        Tuple c = new Tuple(new Object[]{"d", "b", "c"});

        assertEquals("hashcode", a.hashCode(), b.hashCode());
        assertTrue("hashcode", a.hashCode() != c.hashCode());

        assertEquals("a and b", a, b);
        assertFalse("a != c", a.equals(c));

    public void testIterator() {


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