126 lines
3.5 KiB
JavaScript
126 lines
3.5 KiB
JavaScript
/**
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* Copyright (c) 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @emails oncall+jsinfra
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*/
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/* eslint-disable fb-www/object-create-only-one-param */
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'use strict';
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describe('Object (ES7)', () => {
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beforeEach(() => {
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delete Object.entries;
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delete Object.values;
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jest.resetModules();
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require('../Object.es7');
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});
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describe('Object.entries', () => {
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it('should have a length of 1', () => {
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expect(Object.entries.length).toBe(1);
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});
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it('should check for type', () => {
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expect(Object.entries.bind(null, null)).toThrow(TypeError(
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'Object.entries called on non-object'
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));
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expect(Object.entries.bind(null, undefined)).toThrow(TypeError(
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'Object.entries called on non-object'
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));
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expect(Object.entries.bind(null, [])).not.toThrow();
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expect(Object.entries.bind(null, () => {})).not.toThrow();
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expect(Object.entries.bind(null, {})).not.toThrow();
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expect(Object.entries.bind(null, 'abc')).not.toThrow();
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});
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it('should return enumerable entries', () => {
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const foo = Object.defineProperties({}, {
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x: {value: 10, enumerable: true},
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y: {value: 20},
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});
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expect(Object.entries(foo)).toEqual([['x', 10]]);
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const bar = {x: 10, y: 20};
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expect(Object.entries(bar)).toEqual([['x', 10], ['y', 20]]);
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});
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it('should work with proto-less objects', () => {
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const foo = Object.create(null, {
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x: {value: 10, enumerable: true},
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y: {value: 20},
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});
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expect(Object.entries(foo)).toEqual([['x', 10]]);
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});
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it('should return only own entries', () => {
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const foo = Object.create({z: 30}, {
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x: {value: 10, enumerable: true},
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y: {value: 20},
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});
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expect(Object.entries(foo)).toEqual([['x', 10]]);
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});
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it('should convert to object primitive string', () => {
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expect(Object.entries('ab')).toEqual([['0', 'a'], ['1', 'b']]);
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});
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});
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describe('Object.values', () => {
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it('should have a length of 1', () => {
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expect(Object.values.length).toBe(1);
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});
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it('should check for type', () => {
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expect(Object.values.bind(null, null)).toThrow(TypeError(
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'Object.values called on non-object'
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));
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expect(Object.values.bind(null, [])).not.toThrow();
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expect(Object.values.bind(null, () => {})).not.toThrow();
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expect(Object.values.bind(null, {})).not.toThrow();
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});
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it('should return enumerable values', () => {
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const foo = Object.defineProperties({}, {
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x: {value: 10, enumerable: true},
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y: {value: 20},
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});
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expect(Object.values(foo)).toEqual([10]);
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const bar = {x: 10, y: 20};
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expect(Object.values(bar)).toEqual([10, 20]);
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});
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it('should work with proto-less objects', () => {
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const foo = Object.create(null, {
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x: {value: 10, enumerable: true},
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y: {value: 20},
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});
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expect(Object.values(foo)).toEqual([10]);
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});
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it('should return only own values', () => {
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const foo = Object.create({z: 30}, {
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x: {value: 10, enumerable: true},
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y: {value: 20},
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});
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expect(Object.values(foo)).toEqual([10]);
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});
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it('should convert to object primitive string', () => {
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expect(Object.values('ab')).toEqual(['a', 'b']);
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});
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});
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});
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