TestCollectionFactory.java

/* -*- tab-width: 4 -*-
 *
 * Electric(tm) VLSI Design System
 *
 * File: TestCollectionFactory.java
 *
 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
 *
 * Electric(tm) is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * Electric(tm) is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Electric(tm); see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, Mass 02111-1307, USA.
 */
package com.sun.electric.util;

import junit.framework.Assert;

import org.junit.Test;

/**
 * @author Felix Schmidt
 */
public class TestCollectionFactory {

    @Test
    public void testArrayMergeSuccess() {
        Integer[] arr1 = new Integer[] { 1, 2 };
        Integer[] arr2 = new Integer[] { 3, 4, 5 };
        verifyResult(new Integer[] { 1, 2, 3, 4, 5 }, CollectionFactory.arrayMerge(arr1, arr2));
    }
    
    @Test
    public void testArrayMergeEmpty() {
        Integer[] arr1 = new Integer[] {};
        Integer[] arr2 = new Integer[] { 3, 4, 5 };
        verifyResult(new Integer[] { 3, 4, 5 }, CollectionFactory.arrayMerge(arr1, arr2));
    }
    
    @Test
    public void testArrayMergeEmptyBoth() {
        Integer[] arr1 = new Integer[] {};
        Integer[] arr2 = new Integer[] {};
        Assert.assertNull(CollectionFactory.arrayMerge(arr1, arr2));
    }
    
    @Test
    public void testArrayMergeNull() {
        Integer[] arr1 = null;
        Integer[] arr2 = new Integer[] { 3, 4, 5 };
        verifyResult(new Integer[] { 3, 4, 5 }, CollectionFactory.arrayMerge(arr1, arr2));
    }
    
    @Test
    public void testArrayMergeNullBoth() {
        Integer[] arr1 = null;
        Integer[] arr2 = null;
        Assert.assertNull(CollectionFactory.arrayMerge(arr1, arr2));
    }


    private void verifyResult(Integer[] expected, Integer[] result) {
        Assert.assertEquals(expected.length, result.length);

        for (int i = 0; i < expected.length; i++) {
            Assert.assertEquals(expected[i], result[i]);
        }
    }

}