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23
24description(
25"Tests that Arraify does good things when Object.preventExtensions() has been called."
26);
27
28function foo(o) {
29    o[0] = 42;
30    return o[0];
31}
32
33for (var i = 0; i < 200; ++i) {
34    var o = {};
35    var expected;
36    if (i >= 150) {
37        Object.preventExtensions(o);
38        expected = "void 0";
39    } else
40        expected = "42";
41    shouldBe("foo(o)", expected);
42}
43