PairTests.java

/*
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 * Copyright 2008-2009 Sun Microsystems, Inc. All rights reserved.
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 * The contents of this file are subject to the terms of the Common Development
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 * except in compliance with the License.
 *
 * You can obtain a copy of the License at
 * http://opensource.org/licenses/cddl1.php
 * See the License for the specific language governing permissions and limitations
 * under the License.
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 * When distributing the Covered Code, include this CDDL Header Notice in each file
 * and include the License file at http://opensource.org/licenses/cddl1.php.
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package org.identityconnectors.common;

import static org.fest.assertions.Assertions.assertThat;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;

import java.util.HashSet;
import java.util.Set;

import org.testng.annotations.Test;

/**
 * Tests the pair object.
 */
public class PairTests {

    @Test
    public void equals() {
        Pair<String, String> a = new Pair<String, String>("a", "b");
        Pair<String, String> b = new Pair<String, String>("a", "b");
        assertTrue(a.equals(b));
        assertFalse(a.equals(null));
        assertFalse(b.equals(null));
        assertFalse(a.equals("f"));
    }

    @Test
    public void hash() {
        Set<Pair<Integer, Integer>> set = new HashSet<Pair<Integer, Integer>>();
        for (int i = 0; i < 20; i++) {
            Pair<Integer, Integer> pair = new Pair<Integer, Integer>(i, i + 1);
            Pair<Integer, Integer> tst = new Pair<Integer, Integer>(i, i + 1);
            set.add(pair);
            assertTrue(set.contains(tst));
        }
        // check that each pair is unique..
        assertThat(set).hasSize(20);
    }
}