asm4/test/conform/org/objectweb/asm/tree/analysis/SmallSetUnitTest.java

/***
 * ASM tests
 * Copyright (c) 2000-2011 INRIA, France Telecom
 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
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 * 3. Neither the name of the copyright holders nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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package org.objectweb.asm.tree.analysis;

import java.util.Set;

import junit.framework.TestCase;

/**
 * SmallSet unit tests.
 * 
 * @author Eric Bruneton
 */
public class SmallSetUnitTest extends TestCase {

    private final Object A = new Object();
    private final Object B = new Object();
    private final Object C = new Object();
    private final Object D = new Object();

    public void testSubsetUnion() {
        SmallSet<Object> s1 = new SmallSet<Object>(A, B);
        SmallSet<Object> s2 = new SmallSet<Object>(A, null);
        Set<Object> u = s1.union(s2);
        Set<Object> v = s2.union(s1);
        assertEquals(u, v);
        s1.remove();
    }

    public void testDisjointUnion() {
        SmallSet<Object> s1 = new SmallSet<Object>(A, B);
        SmallSet<Object> s2 = new SmallSet<Object>(C, D);
        Set<Object> u = s1.union(s2);
        Set<Object> v = s2.union(s1);
        assertEquals(u, v);
    }
}