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coerce.js
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"use strict"; var assert = require("chai").assert , coerceToInteger = require("../../integer/coerce"); describe("integer/coerce", function () { it("Should coerce float to integer", function () { assert.equal(coerceToInteger(123.123), 123); assert.equal(coerceToInteger(123.823), 123); assert.equal(coerceToInteger(-123.123), -123); assert.equal(coerceToInteger(-123.823), -123); }); it("Should coerce string", function () { assert.equal(coerceToInteger("12.123"), 12); }); it("Should coerce booleans", function () { assert.equal(coerceToInteger(true), 1); }); it("Should coerce number objects", function () { assert.equal(coerceToInteger(new Number(343)), 343); }); it("Should coerce objects", function () { assert.equal(coerceToInteger({ valueOf: function () { return 23; } }), 23); }); it("Should coerce number beyond Number.MAX_SAFE_INTEGER", function () { assert.equal(coerceToInteger(9007199254740992), 9007199254740992); }); it("Should coerce number beyond Number.MIN_SAFE_INTEGER", function () { assert.equal(coerceToInteger(-9007199254740992), -9007199254740992); }); it("Should reject infinite number", function () { assert.equal(coerceToInteger(Infinity), null); }); it("Should reject NaN", function () { assert.equal(coerceToInteger(NaN), null); }); if (typeof Object.create === "function") { it("Should not coerce objects with no number representation", function () { assert.equal(coerceToInteger(Object.create(null)), null); }); } it("Should not coerce null", function () { assert.equal(coerceToInteger(null), null); }); it("Should not coerce undefined", function () { assert.equal(coerceToInteger(undefined), null); }); if (typeof Symbol === "function") { it("Should not coerce symbols", function () { assert.equal(coerceToInteger(Symbol("foo")), null); }); } });