1 /* 2 * Copyright (c) 2015, 2016, 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 * @test 26 * @bug 8066070 27 * @run testng AddNonComparable 28 */ 29 30 package test.java.util.PriorityQueue; 31 32 import org.testng.annotations.Test; 33 34 import java.util.PriorityQueue; 35 import java.util.Queue; 36 import java.util.SortedMap; 37 import java.util.SortedSet; 38 import java.util.TreeMap; 39 import java.util.TreeSet; 40 import java.util.concurrent.ConcurrentSkipListMap; 41 import java.util.concurrent.ConcurrentSkipListSet; 42 import java.util.concurrent.PriorityBlockingQueue; 43 import java.util.function.BiConsumer; 44 import java.util.function.Supplier; 45 46 import static org.testng.Assert.assertEquals; 47 import static org.testng.Assert.assertTrue; 48 49 import android.compat.Compatibility; 50 51 import dalvik.annotation.compat.VersionCodes; 52 import dalvik.system.VMRuntime; 53 54 public class AddNonComparable { 55 test(Queue<E> queue, Supplier<E> supplier, BiConsumer<? super Queue<E>, Throwable> checker)56 static <E> void test(Queue<E> queue, Supplier<E> supplier, 57 BiConsumer<? super Queue<E>, Throwable> checker) { 58 Throwable x = null; 59 try { queue.add(supplier.get()); } 60 catch (Throwable e) { x = e; } 61 checker.accept(queue, x); 62 } 63 64 @Test queues()65 public void queues() { 66 // Android-added: test old behavior in < U. 67 boolean testPreAndroidUBehavior = VMRuntime.getSdkVersion() < VersionCodes.UPSIDE_DOWN_CAKE 68 || !Compatibility.isChangeEnabled(PriorityQueue.PRIORITY_QUEUE_OFFER_NON_COMPARABLE_ONE_ELEMENT); 69 70 if (testPreAndroidUBehavior) { 71 test(new PriorityQueue<>(), NonComparable::new, 72 (q, e) -> { 73 assertEquals(q.size(), 1); 74 assertTrue(e == null); 75 }); 76 } else { 77 test(new PriorityQueue<>(), NonComparable::new, 78 (q, e) -> { 79 assertEquals(q.size(), 0); 80 assertTrue(e instanceof ClassCastException); 81 }); 82 } 83 test(new PriorityQueue<>(), AComparable::new, 84 (q, e) -> { 85 assertEquals(q.size(), 1); 86 assertTrue(e == null); 87 }); 88 89 test(new PriorityBlockingQueue<>(), NonComparable::new, 90 (q, e) -> { 91 assertEquals(q.size(), 0); 92 assertTrue(e instanceof ClassCastException); 93 }); 94 test(new PriorityBlockingQueue<>(), AComparable::new, 95 (q, e) -> { 96 assertEquals(q.size(), 1); 97 assertTrue(e == null); 98 }); 99 } 100 test(SortedSet<E> set, Supplier<E> supplier, BiConsumer<? super SortedSet<E>, Throwable> checker)101 static <E> void test(SortedSet<E> set, Supplier<E> supplier, 102 BiConsumer<? super SortedSet<E>, Throwable> checker) { 103 Throwable x = null; 104 try { set.add(supplier.get()); } 105 catch (Throwable e) { x = e; } 106 checker.accept(set, x); 107 } 108 109 110 @Test sets()111 public void sets() { 112 test(new TreeSet<>(), NonComparable::new, 113 (s, e) -> { 114 assertEquals(s.size(), 0); 115 assertTrue(e instanceof ClassCastException); 116 }); 117 test(new TreeSet<>(), AComparable::new, 118 (s, e) -> { 119 assertEquals(s.size(), 1); 120 assertTrue(e == null); 121 }); 122 123 test(new ConcurrentSkipListSet<>(), NonComparable::new, 124 (s, e) -> { 125 assertEquals(s.size(), 0); 126 assertTrue(e instanceof ClassCastException); 127 }); 128 test(new ConcurrentSkipListSet<>(), AComparable::new, 129 (s, e) -> { 130 assertEquals(s.size(), 1); 131 assertTrue(e == null); 132 }); 133 } 134 test(SortedMap<K,Boolean> map, Supplier<K> supplier, BiConsumer<? super SortedMap<K,Boolean>, Throwable> checker)135 static <K> void test(SortedMap<K,Boolean> map, Supplier<K> supplier, 136 BiConsumer<? super SortedMap<K,Boolean>, Throwable> checker) { 137 Throwable x = null; 138 try { map.put(supplier.get(), Boolean.TRUE); } 139 catch (Throwable e) { x = e; } 140 checker.accept(map, x); 141 } 142 143 @Test maps()144 public void maps() { 145 test(new TreeMap<>(), NonComparable::new, 146 (m, e) -> { 147 assertEquals(m.size(), 0); 148 assertTrue(e instanceof ClassCastException); 149 }); 150 test(new TreeMap<>(), AComparable::new, 151 (m, e) -> { 152 assertEquals(m.size(), 1); 153 assertTrue(e == null); 154 }); 155 156 test(new ConcurrentSkipListMap<>(), NonComparable::new, 157 (s, e) -> { 158 assertEquals(s.size(), 0); 159 assertTrue(e instanceof ClassCastException); 160 }); 161 test(new ConcurrentSkipListMap<>(), AComparable::new, 162 (s, e) -> { 163 assertEquals(s.size(), 1); 164 assertTrue(e == null); 165 }); 166 } 167 168 static class NonComparable { } 169 170 static class AComparable implements Comparable<AComparable> { compareTo(AComparable v)171 @Override public int compareTo(AComparable v) { return 0; } 172 } 173 174 } 175