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23
24description(
25"Tests that we do ToString conversions correctly when String.prototype.valueOf is initially fine but then gets clobbered, and was a dictionary all along."
26);
27
28delete String.prototype.trim;
29delete String.prototype.toLowerCase;
30delete String.prototype.toLocaleUpperCase;
31
32for (var i = 0; i < 1000; ++i)
33    String.prototype["a" + i] = 42;
34
35function foo(a) {
36    for (var i = 0; i < 100; ++i)
37        a = new String(a);
38    return a;
39}
40
41var expected = "\"hello\"";
42for (var i = 0; i < 150; ++i) {
43    if (i == 100) {
44        String.prototype.toString = function() { return 42; }
45        expected = "\"42\"";
46    }
47    shouldBe("\"\" + foo(\"hello\")", expected);
48}
49