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