blob: bf80b592ea56c43ee2718a29722d936a536e58e5 (
plain)
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
|
/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
* Contributor:
* Jeff Walden <jwalden+code@mit.edu>
*/
//-----------------------------------------------------------------------------
var BUGNUMBER = 657298;
var summary = 'Various quirks of setting array length properties to objects';
print(BUGNUMBER + ": " + summary);
/**************
* BEGIN TEST *
**************/
function invokeConversionTwice1()
{
var count = 0;
[].length = { valueOf: function() { count++; return 1; } };
assertEq(count, 2);
}
invokeConversionTwice1();
function invokeConversionTwice2()
{
var count = 0;
[].length = { toString: function() { count++; return 1; }, valueOf: null };
assertEq(count, 2);
}
invokeConversionTwice2();
function dontOverwriteError1()
{
try
{
[].length = { valueOf: {}, toString: {} };
throw new Error("didn't throw a TypeError");
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"expected a TypeError running out of conversion options, got " + e);
}
}
dontOverwriteError1();
function dontOverwriteError2()
{
try
{
[].length = { valueOf: function() { throw "error"; } };
throw new Error("didn't throw a TypeError");
}
catch (e)
{
assertEq(e, "error", "expected 'error' from failed conversion, got " + e);
}
}
dontOverwriteError2();
/******************************************************************************/
if (typeof reportCompare === "function")
reportCompare(true, true);
print("All tests passed!");
|
