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root/jsr166/jsr166/src/test/jtreg/util/Collections/NullComparator.java
Revision: 1.1
Committed: Tue Sep 1 01:24:16 2009 UTC (14 years, 8 months ago) by jsr166
Branch: MAIN
Log Message:
import tests from openjdk

File Contents

# User Rev Content
1 jsr166 1.1 /*
2     * Copyright 1999 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20     * CA 95054 USA or visit www.sun.com if you need additional information or
21     * have any questions.
22     */
23    
24     /**
25     * @test
26     * @bug 4224271
27     * @summary A null Comparator is now specified to indicate natural ordering.
28     */
29    
30     import java.util.*;
31    
32     public class NullComparator {
33     public static void main(String[] args) throws Exception {
34     List list = new ArrayList(100);
35     for (int i=0; i<100; i++)
36     list.add(new Integer(i));
37     List sorted = new ArrayList(list);
38     Collections.shuffle(list);
39    
40     Object a[] = list.toArray();
41     Arrays.sort(a, null);
42     if (!Arrays.asList(a).equals(sorted))
43     throw new Exception("Arrays.sort");
44     a = list.toArray();
45     Arrays.sort(a, 0, 100, null);
46     if (!Arrays.asList(a).equals(sorted))
47     throw new Exception("Arrays.sort(from, to)");
48     if (Arrays.binarySearch(a, new Integer(69)) != 69)
49     throw new Exception("Arrays.binarySearch");
50    
51     List tmp = new ArrayList(list);
52     Collections.sort(tmp, null);
53     if (!tmp.equals(sorted))
54     throw new Exception("Collections.sort");
55     if (Collections.binarySearch(tmp, new Integer(69)) != 69)
56     throw new Exception("Collections.binarySearch");
57     if (!Collections.min(list, null).equals(new Integer(0)))
58     throw new Exception("Collections.min");
59     if (!Collections.max(list, null).equals(new Integer(99)))
60     throw new Exception("Collections.max");
61     }
62     }