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node_modules/es5-ext/test/array/from/shim.js
Maintainability
68.13
Lines of code
58
Difficulty
28.26
Estimated Errors
1.18
Function weight
By Complexity
By SLOC
// Some tests taken from: https://github.com/mathiasbynens/Array.from/blob/master/tests/tests.js 'use strict'; module.exports = function (t, a) { var o = [1, 2, 3], MyType; a.not(t(o), o, "Array"); a.deep(t(o), o, "Array: same content"); a.deep(t('12r3v'), ['1', '2', 'r', '3', 'v'], "String"); a.deep(t((function () { return arguments; }(3, o, 'raz'))), [3, o, 'raz'], "Arguments"); a.deep(t((function () { return arguments; }(3))), [3], "Arguments with one numeric value"); a.deep(t({ 0: 'raz', 1: 'dwa', length: 2 }), ['raz', 'dwa'], "Other"); a.deep(t(o, function (val) { return (val + 2) * 10; }, 10), [30, 40, 50], "Mapping"); a.throws(function () { t(); }, TypeError, "Undefined"); a.deep(t(3), [], "Primitive"); a(t.length, 1, "Length"); a.deep(t({ 'length': 0 }), [], "No values Array-like"); a.deep(t({ 'length': -1 }), [], "Invalid length Array-like"); a.deep(t({ 'length': -Infinity }), [], "Invalid length Array-like #2"); a.throws(function () { t(undefined); }, TypeError, "Undefined"); a.throws(function () { t(null); }, TypeError, "Null"); a.deep(t(false), [], "Boolean"); a.deep(t(-Infinity), [], "Inifity"); a.deep(t(-0), [], "-0"); a.deep(t(+0), [], "+0"); a.deep(t(1), [], "1"); a.deep(t(+Infinity), [], "+Infinity"); a.deep(t({}), [], "Plain object"); a.deep(t({ 'length': 1 }), [undefined], "Sparse array-like"); a.deep(t({ '0': 'a', '1': 'b', 'length': 2 }, function (x) { return x + x; }), ['aa', 'bb'], "Map"); a.deep(t({ '0': 'a', '1': 'b', 'length': 2 }, function (x) { return String(this); }, undefined), ['undefined', 'undefined'], "Map context"); a.deep(t({ '0': 'a', '1': 'b', 'length': 2 }, function (x) { return String(this); }, 'x'), ['x', 'x'], "Map primitive context"); a.throws(function () { t({}, 'foo', 'x'); }, TypeError, "Non callable for map"); a.deep(t.call(null, { 'length': 1, '0': 'a' }), ['a'], "Null context"); a(t({ '__proto__': { '0': 'abc', 'length': 1 } })[0], 'abc', "Values on prototype"); a.throws(function () { t.call(function () { return Object.freeze({}); }, {}); }, TypeError, "Contructor producing freezed objects"); // Ensure no setters are called for the indexes // Ensure no setters are called for the indexes MyType = function () {}; Object.defineProperty(MyType.prototype, '0', { set: function (x) { throw new Error('Setter called: ' + x); } }); a.deep(t.call(MyType, { '0': 'abc', 'length': 1 }), { '0': 'abc', 'length': 1 }, "Defined not set"); };