40 lines
1.5 KiB
Plaintext
40 lines
1.5 KiB
Plaintext
"use strict";
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var assert = require("chai").assert
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, isPrototype = require("../../prototype/is");
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describe("prototype/is", function () {
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it("Should return true on prototype", function () {
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assert.equal(isPrototype(Object.prototype), true);
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});
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it("Should return false on plain object", function () {
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assert.equal(isPrototype({}), false);
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});
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it("Should return false on function", function () {
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assert.equal(isPrototype(function () { return true; }), false);
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});
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it("Should return false on array", function () { assert.equal(isPrototype([]), false); });
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if (typeof Object.create === "function") {
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it("Should return false on object with no prototype", function () {
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assert.equal(isPrototype(Object.create(null)), false);
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});
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}
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it("Should return false on string", function () { assert.equal(isPrototype("foo"), false); });
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it("Should return false on empty string", function () {
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assert.equal(isPrototype(""), false);
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});
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it("Should return false on number", function () { assert.equal(isPrototype(123), false); });
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it("Should return false on NaN", function () { assert.equal(isPrototype(NaN), false); });
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it("Should return false on boolean", function () { assert.equal(isPrototype(true), false); });
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if (typeof Symbol === "function") {
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it("Should return false on symbol", function () {
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assert.equal(isPrototype(Symbol("foo")), false);
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});
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}
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it("Should return false on null", function () { assert.equal(isPrototype(null), false); });
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it("Should return false on undefined", function () {
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assert.equal(isPrototype(void 0), false);
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});
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});
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