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