1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
*/
var BUGNUMBER = 501739;
var summary =
"String.prototype.replace should throw when called with a global RegExp " +
"whose .lastIndex is non-writable";
print(BUGNUMBER + ": " + summary);
/**************
* BEGIN TEST *
**************/
var s = '0x2x4x6x8';
// First time with .lastIndex === 0, replacing to ''
var p1 = /x/g;
Object.defineProperty(p1, "lastIndex", { writable: false });
try
{
s.replace(p1, '');
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
assertEq(p1.lastIndex, 0);
}
// Second time with .lastIndex !== 0, replacing to ''
var p2 = /x/g;
Object.defineProperty(p2, "lastIndex", { writable: false, value: 3 });
try
{
s.replace(p2, '');
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
assertEq(p2.lastIndex, 3);
}
// Third time with .lastIndex === 0, replacing to 'y'
var p3 = /x/g;
Object.defineProperty(p3, "lastIndex", { writable: false });
try
{
s.replace(p3, 'y');
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
assertEq(p3.lastIndex, 0);
}
// Fourth time with .lastIndex !== 0, replacing to 'y'
var p4 = /x/g;
Object.defineProperty(p4, "lastIndex", { writable: false, value: 3 });
try
{
s.replace(p4, '');
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
assertEq(p4.lastIndex, 3);
}
// Fifth time with .lastIndex === 0, replacing to 'y', but no match
var p5 = /q/g;
Object.defineProperty(p5, "lastIndex", { writable: false });
try
{
s.replace(p5, 'y');
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
assertEq(p5.lastIndex, 0);
}
// Sixth time with .lastIndex !== 0, replacing to 'y', but no match
var p6 = /q/g;
Object.defineProperty(p6, "lastIndex", { writable: false, value: 3 });
try
{
s.replace(p6, '');
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
assertEq(p6.lastIndex, 3);
}
/******************************************************************************/
if (typeof reportCompare === "function")
reportCompare(true, true);
print("Tests complete");
|
