1 /* 2 * Copyright (c) 2017, 2017, 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 24 25 package jdk.internal.vm.compiler.collections.test; 26 27 import jdk.internal.vm.compiler.collections.Pair; 28 import org.junit.Assert; 29 import org.junit.Test; 30 31 public class PairTest { 32 33 @Test 34 public void testCreate() { 35 Assert.assertEquals(Pair.create(null, null), Pair.empty()); 36 Assert.assertNotEquals(Pair.create(null, null), null); 37 Assert.assertEquals(Pair.createLeft(null), Pair.empty()); 38 Assert.assertEquals(Pair.createRight(null), Pair.empty()); 39 Assert.assertEquals(Pair.create(1, null), Pair.createLeft(1)); 40 Assert.assertEquals(Pair.create(null, 1), Pair.createRight(1)); 41 } 42 43 @Test 44 public void testUtilities() { 45 Pair<Integer, Integer> pair = Pair.create(1, null); 46 Assert.assertEquals(pair.getLeft(), Integer.valueOf(1)); 47 Assert.assertEquals(pair.getRight(), null); 48 Assert.assertEquals(pair.toString(), "(1, null)"); 49 Assert.assertEquals(pair.hashCode(), Pair.createLeft(1).hashCode()); 50 } 51 52 }