| /* |
| * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6306829 |
| * @summary Verify assertions in get() javadocs |
| * @author Martin Buchholz |
| */ |
| |
| import java.io.*; |
| import java.util.*; |
| import java.util.concurrent.*; |
| import java.util.concurrent.atomic.*; |
| |
| public class Get { |
| |
| private static void realMain(String[] args) throws Throwable { |
| testMap(new Hashtable<Character,Boolean>()); |
| testMap(new HashMap<Character,Boolean>()); |
| testMap(new IdentityHashMap<Character,Boolean>()); |
| testMap(new LinkedHashMap<Character,Boolean>()); |
| testMap(new ConcurrentHashMap<Character,Boolean>()); |
| testMap(new WeakHashMap<Character,Boolean>()); |
| testMap(new TreeMap<Character,Boolean>()); |
| testMap(new ConcurrentSkipListMap<Character,Boolean>()); |
| } |
| |
| private static void put(Map<Character,Boolean> m, |
| Character key, Boolean value, |
| Boolean oldValue) { |
| if (oldValue != null) { |
| check("containsValue(oldValue)", m.containsValue(oldValue)); |
| check("values.contains(oldValue)", m.values().contains(oldValue)); |
| } |
| equal(m.put(key, value), oldValue); |
| equal(m.get(key), value); |
| check("containsKey", m.containsKey(key)); |
| check("keySet.contains", m.keySet().contains(key)); |
| check("containsValue", m.containsValue(value)); |
| check("values.contains", m.values().contains(value)); |
| check("!isEmpty", ! m.isEmpty()); |
| } |
| |
| private static void testMap(Map<Character,Boolean> m) { |
| // We verify following assertions in get(Object) method javadocs |
| boolean permitsNullKeys = (! (m instanceof ConcurrentMap || |
| m instanceof Hashtable || |
| m instanceof SortedMap)); |
| boolean permitsNullValues = (! (m instanceof ConcurrentMap || |
| m instanceof Hashtable)); |
| boolean usesIdentity = m instanceof IdentityHashMap; |
| |
| System.err.println(m.getClass()); |
| put(m, 'A', true, null); |
| put(m, 'A', false, true); // Guaranteed identical by JLS |
| put(m, 'B', true, null); |
| put(m, new Character('A'), false, usesIdentity ? null : false); |
| if (permitsNullKeys) { |
| try { |
| put(m, null, true, null); |
| put(m, null, false, true); |
| } |
| catch (Throwable t) { unexpected(m.getClass().getName(), t); } |
| } else { |
| try { m.get(null); fail(m.getClass().getName() + " did not reject null key"); } |
| catch (NullPointerException e) {} |
| catch (Throwable t) { unexpected(m.getClass().getName(), t); } |
| |
| try { m.put(null, true); fail(m.getClass().getName() + " did not reject null key"); } |
| catch (NullPointerException e) {} |
| catch (Throwable t) { unexpected(m.getClass().getName(), t); } |
| } |
| if (permitsNullValues) { |
| try { |
| put(m, 'C', null, null); |
| put(m, 'C', true, null); |
| put(m, 'C', null, true); |
| } |
| catch (Throwable t) { unexpected(m.getClass().getName(), t); } |
| } else { |
| try { m.put('A', null); fail(m.getClass().getName() + " did not reject null key"); } |
| catch (NullPointerException e) {} |
| catch (Throwable t) { unexpected(m.getClass().getName(), t); } |
| |
| try { m.put('C', null); fail(m.getClass().getName() + " did not reject null key"); } |
| catch (NullPointerException e) {} |
| catch (Throwable t) { unexpected(m.getClass().getName(), t); } |
| } |
| } |
| |
| //--------------------- Infrastructure --------------------------- |
| static volatile int passed = 0, failed = 0; |
| static void pass() { passed++; } |
| static void fail() { failed++; (new Error("Failure")).printStackTrace(System.err); } |
| static void fail(String msg) { failed++; (new Error("Failure: " + msg)).printStackTrace(System.err); } |
| static void unexpected(String msg, Throwable t) { System.err.println("Unexpected: " + msg); unexpected(t); } |
| static void unexpected(Throwable t) { failed++; t.printStackTrace(System.err); } |
| static void check(boolean cond) { if (cond) pass(); else fail(); } |
| static void check(String desc, boolean cond) { if (cond) pass(); else fail(desc); } |
| static void equal(Object x, Object y) { |
| if (Objects.equals(x,y)) pass(); else fail(x + " not equal to " + y); |
| } |
| |
| public static void main(String[] args) throws Throwable { |
| try { realMain(args); } catch (Throwable t) { unexpected(t); } |
| |
| System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
| if (failed > 0) throw new Error("Some tests failed"); |
| } |
| } |