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 java.util.Arrays; 28 import java.util.Iterator; 29 30 import jdk.internal.vm.compiler.collections.EconomicMap; 31 import jdk.internal.vm.compiler.collections.EconomicSet; 32 import jdk.internal.vm.compiler.collections.Equivalence; 33 import jdk.internal.vm.compiler.collections.UnmodifiableEconomicSet; 34 import org.junit.Assert; 35 import org.junit.Test; 36 37 public class EconomicMapImplTest { 38 39 @Test(expected = UnsupportedOperationException.class) 40 public void testRemoveNull() { 41 EconomicMap<Integer, Integer> map = EconomicMap.create(10); 42 map.removeKey(null); 43 } 44 45 @Test 46 public void testInitFromHashSet() { 47 UnmodifiableEconomicSet<Integer> set = new UnmodifiableEconomicSet<Integer>() { 48 49 @Override 50 public boolean contains(Integer element) { 51 return element == 0; 52 } 53 54 @Override 55 public int size() { 56 return 1; 57 } 58 59 @Override 60 public boolean isEmpty() { 61 return false; 62 } 63 64 @Override 65 public Iterator<Integer> iterator() { 66 return new Iterator<Integer>() { 67 68 private boolean visited = false; 69 70 @Override 71 public boolean hasNext() { 72 return !visited; 73 } 74 75 @Override 76 public Integer next() { 77 if (visited) { 78 return null; 79 } else { 80 visited = true; 81 return 1; 82 } 83 } 84 }; 85 } 86 }; 87 88 EconomicSet<Integer> newSet = EconomicSet.create(Equivalence.DEFAULT, set); 89 Assert.assertEquals(newSet.size(), 1); 90 } 91 92 @Test 93 public void testCopyHash() { 94 EconomicSet<Integer> set = EconomicSet.create(Equivalence.IDENTITY); 95 set.addAll(Arrays.asList(0, 1, 2, 3, 4, 5, 6, 7, 8, 9)); 96 EconomicSet<Integer> newSet = EconomicSet.create(Equivalence.IDENTITY, set); 97 Assert.assertEquals(newSet.size(), 10); 98 newSet.remove(8); 99 newSet.remove(9); 100 Assert.assertEquals(newSet.size(), 8); 101 } 102 103 @Test 104 public void testNewEquivalence() { 105 EconomicSet<Integer> set = EconomicSet.create(new Equivalence() { 106 @Override 107 public boolean equals(Object a, Object b) { 108 return false; 109 } 110 111 @Override 112 public int hashCode(Object o) { 113 return 0; 114 } 115 }); 116 set.addAll(Arrays.asList(0, 1, 2, 3, 4, 5, 6, 7, 8, 9)); 117 Assert.assertTrue(set.add(newInteger(0))); 118 } 119 120 @SuppressWarnings("deprecation") 121 private static Integer newInteger(int value) { 122 return new Integer(value); 123 } 124 125 @Test(expected = UnsupportedOperationException.class) 126 public void testMapPutNull() { 127 EconomicMap<Integer, Integer> map = EconomicMap.create(); 128 map.put(null, null); 129 } 130 131 }