1/* 2 * Copyright (c) 2005, 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 4904074 6328220 6330389 27 * @summary Basic tests for SimpleEntry, SimpleImmutableEntry 28 * @author Martin Buchholz 29 */ 30 31import java.util.*; 32import java.util.concurrent.*; 33import static java.util.AbstractMap.*; 34 35public class SimpleEntries { 36 private static String k = "foo"; 37 private static Long v = 1L; 38 private static Long v2 = 2L; 39 private static void realMain(String[] args) throws Throwable { 40 testEntry(new SimpleEntry<String,Long>(k,v)); 41 testEntry(new SimpleImmutableEntry<String,Long>(k,v)); 42 testNullEntry(new SimpleEntry<String,Long>(null,null)); 43 testNullEntry(new SimpleImmutableEntry<String,Long>(null,null)); 44 } 45 46 private static void testEntry(Map.Entry<String,Long> e) { 47 equal(e.getKey(), k); 48 equal(e.getValue(), v); 49 equal(e, new SimpleEntry<String,Long>(k,v)); 50 check(! e.equals(new SimpleEntry<String,Long>(k,v2))); 51 check(! e.equals(null)); 52 equal(e, new SimpleImmutableEntry<String,Long>(k,v)); 53 equal(e.toString(), k+"="+v); 54 if (e instanceof SimpleEntry) { 55 equal(e.setValue(v2), v); 56 equal(e.getValue(), v2); 57 equal(e.setValue(null), v2); 58 equal(e.getValue(), null); 59 } else { 60 try { e.setValue(v2); fail(); } 61 catch (UnsupportedOperationException t) {} 62 catch (Throwable t) { unexpected(t); } 63 } 64 } 65 66 private static void testNullEntry(Map.Entry<String,Long> e) { 67 equal(e.getKey(), null); 68 equal(e.getValue(), null); 69 equal(e, new SimpleEntry<String,Long>(null, null)); 70 equal(e, new SimpleImmutableEntry<String,Long>(null, null)); 71 equal(e.toString(), "null=null"); 72 if (e instanceof SimpleEntry) { 73 equal(e.setValue(v), null); 74 equal(e.getValue(), v); 75 } else { 76 try { e.setValue(null); fail(); } 77 catch (UnsupportedOperationException t) {} 78 catch (Throwable t) { unexpected(t); } 79 } 80 } 81 82 //--------------------- Infrastructure --------------------------- 83 static volatile int passed = 0, failed = 0; 84 static void pass() {passed++;} 85 static void fail() {failed++; Thread.dumpStack();} 86 static void fail(String msg) {System.out.println(msg); fail();} 87 static void unexpected(Throwable t) {failed++; t.printStackTrace();} 88 static void check(boolean cond) {if (cond) pass(); else fail();} 89 static void equal(Object x, Object y) { 90 if (x == null ? y == null : x.equals(y)) pass(); 91 else fail(x + " not equal to " + y);} 92 public static void main(String[] args) throws Throwable { 93 try {realMain(args);} catch (Throwable t) {unexpected(t);} 94 System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); 95 if (failed > 0) throw new AssertionError("Some tests failed");} 96} 97