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