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      1 // Copyright 2013 the V8 project authors. All rights reserved.
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     23 
     24 description("Test the conversion performed by the function Number.prototype.toString.");
     25 
     26     var numberIndex = 0;
     27     var base10StringIndex = 1;
     28     var base2StringIndex = 2;
     29     var base36StringIndex = 3;
     30 
     31     var validNumberData = [
     32     // Regular Integers:
     33     [0, '0', '0', '0'],
     34     [-1, '-1', '-1', '-1'],
     35     [1, '1', '1', '1'],
     36     [1984, '1984', '11111000000', '1j4'],
     37     [-1984, '-1984', '-11111000000', '-1j4'],
     38     // Limits:
     39     [2147483647, '2147483647', '1111111111111111111111111111111', 'zik0zj'], // INT_MAX.
     40     [-2147483648, '-2147483648', '-10000000000000000000000000000000', '-zik0zk'], // INT_MIN
     41     [9007199254740992, '9007199254740992', '100000000000000000000000000000000000000000000000000000', '2gosa7pa2gw'], // Max Integer in a double.
     42     [-9007199254740992, '-9007199254740992', '-100000000000000000000000000000000000000000000000000000', '-2gosa7pa2gw'], // Min Integer in a double.
     43 
     44     // Integers represented as double.
     45     [0.0, '0', '0', '0'],
     46     [-1.0, '-1', '-1', '-1'],
     47     [1.0, '1', '1', '1'],
     48     [1984.0, '1984', '11111000000', '1j4'],
     49     [-1984.0, '-1984', '-11111000000', '-1j4'],
     50     // Limits:
     51     [2147483647.0, '2147483647', '1111111111111111111111111111111', 'zik0zj'], // INT_MAX.
     52     [-2147483648.0, '-2147483648', '-10000000000000000000000000000000', '-zik0zk'], // INT_MIN
     53     [9007199254740992.0, '9007199254740992', '100000000000000000000000000000000000000000000000000000', '2gosa7pa2gw'], // Max Integer in a double.
     54     [-9007199254740992.0, '-9007199254740992', '-100000000000000000000000000000000000000000000000000000', '-2gosa7pa2gw'], // Min Integer in a double.
     55 
     56     // Double.
     57     [0.1, '0.1', '0.0001100110011001100110011001100110011001100110011001101', '0.3lllllllllm'],
     58     [-1.1, '-1.1', '-1.000110011001100110011001100110011001100110011001101', '-1.3llllllllm'],
     59     [1.1, '1.1', '1.000110011001100110011001100110011001100110011001101', '1.3llllllllm'],
     60     [1984.1, '1984.1', '11111000000.00011001100110011001100110011001100110011', '1j4.3lllllllc'],
     61     [-1984.1, '-1984.1', '-11111000000.00011001100110011001100110011001100110011', '-1j4.3lllllllc'],
     62     // Limits:
     63     [2147483647.1, '2147483647.1', '1111111111111111111111111111111.000110011001100110011', 'zik0zj.3lllg'],
     64     [-2147483648.1, '-2147483648.1', '-10000000000000000000000000000000.000110011001100110011', '-zik0zk.3lllg'],
     65     [9007199254740992.1, '9007199254740992', '100000000000000000000000000000000000000000000000000000', '2gosa7pa2gw'],
     66     [-9007199254740992.1, '-9007199254740992', '-100000000000000000000000000000000000000000000000000000', '-2gosa7pa2gw'],
     67     ];
     68 
     69     for (var i = 0; i < validNumberData.length; ++i) {
     70         number = validNumberData[i][numberIndex];
     71 
     72         // Base 10:
     73         stringBase10 = validNumberData[i][base10StringIndex];
     74         shouldBeEqualToString('Number(' + number + ').toString()', stringBase10);
     75         shouldBeEqualToString('Number.prototype.toString.call(' + number + ')', stringBase10);
     76         shouldBeEqualToString('Number.prototype.toString.call(new Number(' + number + '))', stringBase10);
     77         // Passing the string to number should also lead to valid conversion.
     78         shouldBeEqualToString('Number("' + number + '").toString()', stringBase10);
     79         // Passing the base explicitly.
     80         shouldBeEqualToString('Number(' + number + ').toString(10)', stringBase10);
     81 
     82         // Base 2:
     83         stringBase2 = validNumberData[i][base2StringIndex];
     84         shouldBeEqualToString('Number(' + number + ').toString(2)', stringBase2);
     85         shouldBeEqualToString('Number.prototype.toString.call(' + number + ', 2)', stringBase2);
     86         shouldBeEqualToString('Number.prototype.toString.call(new Number(' + number + '), 2)', stringBase2);
     87 
     88         // Base 36:
     89         stringBase36 = validNumberData[i][base36StringIndex];
     90         shouldBeEqualToString('Number(' + number + ').toString(36)', stringBase36);
     91         shouldBeEqualToString('Number.prototype.toString.call(' + number + ', 36)', stringBase36);
     92         shouldBeEqualToString('Number.prototype.toString.call(new Number(' + number + '), 36)', stringBase36);
     93     }
     94     successfullyParsed = true;
     95