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   1 // Most tests taken from https://github.com/mathiasbynens/Array.of/blob/master/tests/tests.js
   2 // Thanks @mathiasbynens
   3
   4 'use strict';
   5
   6 var defineProperty = Object.defineProperty;
   7
   8 module.exports = function (t, a) {
   9         var x = {}, testObject, MyType;
  10
  11         a.deep(t(), [], "No arguments");
  12         a.deep(t(3), [3], "One numeric argument");
  13         a.deep(t(3, 'raz', null, x, undefined), [3, 'raz', null, x, undefined],
  14                 "Many arguments");
  15
  16         a(t.length, 0, "Length");
  17
  18         a.deep(t('abc'), ['abc'], "String");
  19         a.deep(t(undefined), [undefined], "Undefined");
  20         a.deep(t(null), [null], "Null");
  21         a.deep(t(false), [false], "Boolean");
  22         a.deep(t(-Infinity), [-Infinity], "Infinity");
  23         a.deep(t(-0), [-0], "-0");
  24         a.deep(t(+0), [+0], "+0");
  25         a.deep(t(1), [1], "1");
  26         a.deep(t(1, 2, 3), [1, 2, 3], "Numeric args");
  27         a.deep(t(+Infinity), [+Infinity], "+Infinity");
  28         a.deep(t({ '0': 'a', '1': 'b', '2': 'c', length: 3 }),
  29                 [{ '0': 'a', '1': 'b', '2': 'c', length: 3 }], "Array like");
  30         a.deep(t(undefined, null, false, -Infinity, -0, +0, 1, 2, +Infinity),
  31                 [undefined, null, false, -Infinity, -0, +0, 1, 2, +Infinity], "Falsy arguments");
  32
  33         a.h1("Null context");
  34         a.deep(t.call(null, 'abc'), ['abc'], "String");
  35         a.deep(t.call(null, undefined), [undefined], "Undefined");
  36         a.deep(t.call(null, null), [null], "Null");
  37         a.deep(t.call(null, false), [false], "Boolean");
  38         a.deep(t.call(null, -Infinity), [-Infinity], "-Infinity");
  39         a.deep(t.call(null, -0), [-0], "-0");
  40         a.deep(t.call(null, +0), [+0], "+0");
  41         a.deep(t.call(null, 1), [1], "1");
  42         a.deep(t.call(null, 1, 2, 3), [1, 2, 3], "Numeric");
  43         a.deep(t.call(null, +Infinity), [+Infinity], "+Infinity");
  44         a.deep(t.call(null, { '0': 'a', '1': 'b', '2': 'c', length: 3 }),
  45                 [{ '0': 'a', '1': 'b', '2': 'c', length: 3 }], "Array-like");
  46         a.deep(t.call(null, undefined, null, false, -Infinity, -0, +0, 1, 2, +Infinity),
  47                 [undefined, null, false, -Infinity, -0, +0, 1, 2, +Infinity], "Falsy");
  48
  49         a.h1("Other constructor context");
  50         a.deep(t.call(Object, 1, 2, 3), { '0': 1, '1': 2, '2': 3, length: 3 }, "Many arguments");
  51
  52         testObject = Object(3);
  53         testObject[0] = 1;
  54         testObject[1] = 2;
  55         testObject[2] = 3;
  56         testObject.length = 3;
  57         a.deep(t.call(Object, 1, 2, 3), testObject, "Test object");
  58         a(t.call(Object).length, 0, "No arguments");
  59         a.throws(function () { t.call(function () { return Object.freeze({}); }); }, TypeError,
  60                 "Frozen instance");
  61
  62         // Ensure no setters are called for the indexes
  63         MyType = function () {};
  64         defineProperty(MyType.prototype, '0', {
  65                 set: function (x) { throw new Error('Setter called: ' + x); }
  66         });
  67         a.deep(t.call(MyType, 'abc'), { '0': 'abc', length: 1 }, "Define, not set");
  68 };