1 /* 2 * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.jtt.lang; 24 25 import org.junit.Test; 26 27 import org.graalvm.compiler.jtt.JTTTest; 28 29 /* 30 */ 31 public class System_identityHashCode01 extends JTTTest { 32 33 private static final Object object0 = new Object(); 34 private static final Object object1 = new Object(); 35 private static final Object object2 = new Object(); 36 37 private static final int hash0 = System.identityHashCode(object0); 38 private static final int hash1 = System.identityHashCode(object1); 39 private static final int hash2 = System.identityHashCode(object2); 40 41 public static boolean test(int i) { 42 if (i == 0) { 43 return hash0 == System.identityHashCode(object0); 44 } 45 if (i == 1) { 46 return hash1 == System.identityHashCode(object1); 47 } 48 if (i == 2) { 49 return hash2 == System.identityHashCode(object2); 50 } 51 if (i == 3) { 52 return 0 == System.identityHashCode(null); 53 } 54 return false; 55 } 56 57 @Test 58 public void run0() throws Throwable { 59 runTest("test", 0); 60 } 61 62 @Test 63 public void run1() throws Throwable { 64 runTest("test", 1); 65 } 66 67 @Test 68 public void run2() throws Throwable { 69 runTest("test", 2); 70 } 71 72 @Test 73 public void run3() throws Throwable { 74 runTest("test", 3); 75 } 76 77 @Test 78 public void run4() throws Throwable { 79 runTest("test", 4); 80 } 81 }