1// Copyright 2008 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
28// ----------------
29// Check fast objects
30
31var o = { };
32assertFalse(0 in o);
33assertFalse('x' in o);
34assertFalse('y' in o);
35assertTrue('toString' in o, "toString");
36
37var o = { x: 12 };
38assertFalse(0 in o);
39assertTrue('x' in o);
40assertFalse('y' in o);
41assertTrue('toString' in o, "toString");
42
43var o = { x: 12, y: 15 };
44assertFalse(0 in o);
45assertTrue('x' in o);
46assertTrue('y' in o);
47assertTrue('toString' in o, "toString");
48
49
50// ----------------
51// Check dense arrays
52
53var a = [ ];
54assertFalse(0 in a);
55assertFalse(1 in a);
56assertFalse('0' in a);
57assertFalse('1' in a);
58assertTrue('toString' in a, "toString");
59
60var a = [ 1 ];
61assertTrue(0 in a);
62assertFalse(1 in a);
63assertTrue('0' in a);
64assertFalse('1' in a);
65assertTrue('toString' in a, "toString");
66
67var a = [ 1, 2 ];
68assertTrue(0 in a);
69assertTrue(1 in a);
70assertTrue('0' in a);
71assertTrue('1' in a);
72assertTrue('toString' in a, "toString");
73
74var a = [ 1, 2 ];
75assertFalse(0.001 in a);
76assertTrue(-0 in a);
77assertTrue(+0 in a);
78assertFalse('0.0' in a);
79assertFalse('1.0' in a);
80assertFalse(NaN in a);
81assertFalse(Infinity in a);
82assertFalse(-Infinity in a);
83
84var a = [];
85a[1] = 2;
86assertFalse(0 in a);
87assertTrue(1 in a);
88assertFalse(2 in a);
89assertFalse('0' in a);
90assertTrue('1' in a);
91assertFalse('2' in a);
92assertTrue('toString' in a, "toString");
93
94
95// ----------------
96// Check dictionary ("normalized") objects
97
98var o = {};
99for (var i = 0x0020; i < 0x02ff; i += 2) {
100  o['char:' + String.fromCharCode(i)] = i;
101}
102for (var i = 0x0020; i < 0x02ff; i += 2) {
103  assertTrue('char:' + String.fromCharCode(i) in o);
104  assertFalse('char:' + String.fromCharCode(i + 1) in o);
105}
106assertTrue('toString' in o, "toString");
107
108var o = {};
109o[Math.pow(2,30)-1] = 0;
110o[Math.pow(2,31)-1] = 0;
111o[1] = 0;
112assertFalse(0 in o);
113assertTrue(1 in o);
114assertFalse(2 in o);
115assertFalse(Math.pow(2,30)-2 in o);
116assertTrue(Math.pow(2,30)-1 in o);
117assertFalse(Math.pow(2,30)-0 in o);
118assertTrue(Math.pow(2,31)-1 in o);
119assertFalse(0.001 in o);
120assertFalse('0.0' in o);
121assertFalse('1.0' in o);
122assertFalse(NaN in o);
123assertFalse(Infinity in o);
124assertFalse(-Infinity in o);
125assertFalse(-0 in o);
126assertFalse(+0 in o);
127assertTrue('toString' in o, "toString");
128
129
130// ----------------
131// Check sparse arrays
132
133var a = [];
134a[Math.pow(2,30)-1] = 0;
135a[Math.pow(2,31)-1] = 0;
136a[1] = 0;
137assertFalse(0 in a, "0 in a");
138assertTrue(1 in a, "1 in a");
139assertFalse(2 in a, "2 in a");
140assertFalse(Math.pow(2,30)-2 in a, "Math.pow(2,30)-2 in a");
141assertTrue(Math.pow(2,30)-1 in a, "Math.pow(2,30)-1 in a");
142assertFalse(Math.pow(2,30)-0 in a, "Math.pow(2,30)-0 in a");
143assertTrue(Math.pow(2,31)-1 in a, "Math.pow(2,31)-1 in a");
144assertFalse(0.001 in a, "0.001 in a");
145assertFalse('0.0' in a,"'0.0' in a");
146assertFalse('1.0' in a,"'1.0' in a");
147assertFalse(NaN in a,"NaN in a");
148assertFalse(Infinity in a,"Infinity in a");
149assertFalse(-Infinity in a,"-Infinity in a");
150assertFalse(-0 in a,"-0 in a");
151assertFalse(+0 in a,"+0 in a");
152assertTrue('toString' in a, "toString");
153
154// -------------
155// Check negative indices in arrays.
156var a = [];
157assertFalse(-1 in a);
158a[-1] = 43;
159assertTrue(-1 in a);
160