001/*
002 * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.jtt.lang;
024
025import org.junit.*;
026
027import com.oracle.graal.jtt.*;
028
029/*
030 */
031public class System_identityHashCode01 extends JTTTest {
032
033    private static final Object object0 = new Object();
034    private static final Object object1 = new Object();
035    private static final Object object2 = new Object();
036
037    private static final int hash0 = System.identityHashCode(object0);
038    private static final int hash1 = System.identityHashCode(object1);
039    private static final int hash2 = System.identityHashCode(object2);
040
041    public static boolean test(int i) {
042        if (i == 0) {
043            return hash0 == System.identityHashCode(object0);
044        }
045        if (i == 1) {
046            return hash1 == System.identityHashCode(object1);
047        }
048        if (i == 2) {
049            return hash2 == System.identityHashCode(object2);
050        }
051        if (i == 3) {
052            return 0 == System.identityHashCode(null);
053        }
054        return false;
055    }
056
057    @Test
058    public void run0() throws Throwable {
059        runTest("test", 0);
060    }
061
062    @Test
063    public void run1() throws Throwable {
064        runTest("test", 1);
065    }
066
067    @Test
068    public void run2() throws Throwable {
069        runTest("test", 2);
070    }
071
072    @Test
073    public void run3() throws Throwable {
074        runTest("test", 3);
075    }
076
077    @Test
078    public void run4() throws Throwable {
079        runTest("test", 4);
080    }
081}