1// Copyright 2009 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6//     * Redistributions of source code must retain the above copyright
7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
9//       copyright notice, this list of conditions and the following
10//       disclaimer in the documentation and/or other materials provided
11//       with the distribution.
12//     * Neither the name of Google Inc. nor the names of its
13//       contributors may be used to endorse or promote products derived
14//       from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28assertTrue(undefined == undefined, 1);
29assertFalse(undefined <= undefined, 2);
30assertFalse(undefined >= undefined, 3);
31assertFalse(undefined < undefined, 4);
32assertFalse(undefined > undefined, 5);
33
34assertTrue(null == null, 6);
35assertTrue(null <= null, 7);
36assertTrue(null >= null, 8);
37assertFalse(null < null, 9);
38assertFalse(null > null, 10);
39
40assertTrue(void 0 == void 0, 11);
41assertFalse(void 0 <= void 0, 12);
42assertFalse(void 0 >= void 0, 13);
43assertFalse(void 0 < void 0, 14);
44assertFalse(void 0 > void 0, 15);
45
46var x = void 0;
47
48assertTrue(x == x, 16);
49assertFalse(x <= x, 17);
50assertFalse(x >= x, 18);
51assertFalse(x < x, 19);
52assertFalse(x > x, 20);
53
54var not_undefined = [null, 0, 1, 1/0, -1/0, "", true, false];
55for (var i = 0; i < not_undefined.length; i++) {
56  x = not_undefined[i];
57
58  assertTrue(x == x, "" + 21 + x);
59  assertTrue(x <= x, "" + 22 + x);
60  assertTrue(x >= x, "" + 23 + x);
61  assertFalse(x < x, "" + 24 + x);
62  assertFalse(x > x, "" + 25 + x);
63}
64