js/src/tests/ecma_5/String/replace-throws-nonwritable-lastIndex-global.js@6474c204b198
js/src/tests/ecma_5/String/replace-throws-nonwritable-lastIndex-global.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 /*
2 * Any copyright is dedicated to the Public Domain.
3 * http://creativecommons.org/licenses/publicdomain/
4 */
6 var BUGNUMBER = 501739;
7 var summary =
8 "String.prototype.replace should throw when called with a global RegExp " +
9 "whose .lastIndex is non-writable";
11 print(BUGNUMBER + ": " + summary);
13 /**************
14 * BEGIN TEST *
15 **************/
17 var s = '0x2x4x6x8';
19 // First time with .lastIndex === 0, replacing to ''
21 var p1 = /x/g;
22 Object.defineProperty(p1, "lastIndex", { writable: false });
24 try
25 {
26 s.replace(p1, '');
27 throw "didn't throw";
28 }
29 catch (e)
30 {
31 assertEq(e instanceof TypeError, true,
32 "should have thrown a TypeError, instead got: " + e);
33 assertEq(p1.lastIndex, 0);
34 }
36 // Second time with .lastIndex !== 0, replacing to ''
38 var p2 = /x/g;
39 Object.defineProperty(p2, "lastIndex", { writable: false, value: 3 });
41 try
42 {
43 s.replace(p2, '');
44 throw "didn't throw";
45 }
46 catch (e)
47 {
48 assertEq(e instanceof TypeError, true,
49 "should have thrown a TypeError, instead got: " + e);
50 assertEq(p2.lastIndex, 3);
51 }
53 // Third time with .lastIndex === 0, replacing to 'y'
55 var p3 = /x/g;
56 Object.defineProperty(p3, "lastIndex", { writable: false });
58 try
59 {
60 s.replace(p3, 'y');
61 throw "didn't throw";
62 }
63 catch (e)
64 {
65 assertEq(e instanceof TypeError, true,
66 "should have thrown a TypeError, instead got: " + e);
67 assertEq(p3.lastIndex, 0);
68 }
70 // Fourth time with .lastIndex !== 0, replacing to 'y'
72 var p4 = /x/g;
73 Object.defineProperty(p4, "lastIndex", { writable: false, value: 3 });
75 try
76 {
77 s.replace(p4, '');
78 throw "didn't throw";
79 }
80 catch (e)
81 {
82 assertEq(e instanceof TypeError, true,
83 "should have thrown a TypeError, instead got: " + e);
84 assertEq(p4.lastIndex, 3);
85 }
87 // Fifth time with .lastIndex === 0, replacing to 'y', but no match
89 var p5 = /q/g;
90 Object.defineProperty(p5, "lastIndex", { writable: false });
92 try
93 {
94 s.replace(p5, 'y');
95 throw "didn't throw";
96 }
97 catch (e)
98 {
99 assertEq(e instanceof TypeError, true,
100 "should have thrown a TypeError, instead got: " + e);
101 assertEq(p5.lastIndex, 0);
102 }
104 // Sixth time with .lastIndex !== 0, replacing to 'y', but no match
106 var p6 = /q/g;
107 Object.defineProperty(p6, "lastIndex", { writable: false, value: 3 });
109 try
110 {
111 s.replace(p6, '');
112 throw "didn't throw";
113 }
114 catch (e)
115 {
116 assertEq(e instanceof TypeError, true,
117 "should have thrown a TypeError, instead got: " + e);
118 assertEq(p6.lastIndex, 3);
119 }
121 /******************************************************************************/
123 if (typeof reportCompare === "function")
124 reportCompare(true, true);
126 print("Tests complete");
