1// Copyright 2008 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
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15//
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27
28// A reduced test case from Acid3 test 95.
29// When an object is assigned to an array length field,
30// it is converted to a number.
31
32function CheckSetArrayLength(x, expected) {
33  var a = [];
34  a.length = x;
35
36  assertEquals("number", typeof a.length);
37  assertEquals(expected, a.length);
38}
39
40CheckSetArrayLength(2147483648, 2147483648);
41CheckSetArrayLength("2147483648", 2147483648);
42CheckSetArrayLength(null, 0);
43CheckSetArrayLength(false, 0);
44CheckSetArrayLength(true, 1);
45CheckSetArrayLength({valueOf : function() { return 42; }}, 42);
46CheckSetArrayLength({toString : function() { return '42'; }}, 42);
47
48// Test invalid values
49assertThrows("var y = []; y.length = 'abc';");
50assertThrows("var y = []; y.length = undefined;");
51assertThrows("var y = []; y.length = {};");
52assertThrows("var y = []; y.length = -1;");
53assertThrows("var y = []; y.length = {valueOf:function() { throw new Error(); }};");
54