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Groovy example source code file (

This example Groovy source code file ( is included in the "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 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
 * 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() {


Other Groovy examples (source code examples)

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