74 lines
1.6 KiB
JavaScript
74 lines
1.6 KiB
JavaScript
import { expect } from 'chai'
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import u from '../lib'
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describe('u.freeze', () => {
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afterEach(() => {
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delete process.env.NODE_ENV
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})
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it('freezes objects', () => {
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const object = {}
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u.freeze(object)
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expect(Object.isFrozen(object)).to.be.true
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})
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it('freezes nested objects', () => {
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const object = { foo: { bar: 3 } }
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u.freeze(object)
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expect(Object.isFrozen(object.foo)).to.be.true
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})
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it('freezes nested arrays', () => {
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const object = [[0]]
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u.freeze(object)
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expect(Object.isFrozen(object)).to.be.true
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expect(Object.isFrozen(object[0])).to.be.true
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})
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it('ignores functions', () => {
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const object = { foo: () => 1 }
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u.freeze(object)
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expect(Object.isFrozen(object.foo)).to.be.false
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})
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it('ignores regexps', () => {
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const object = { foo: /\d/ }
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u.freeze(object)
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expect(Object.isFrozen(object.foo)).to.be.false
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})
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it('does not freeze children if the parent is already frozen', () => {
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const object = { foo: {} }
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Object.freeze(object)
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u.freeze(object)
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expect(Object.isFrozen(object.foo)).to.be.false
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})
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it('does not freeze in production', () => {
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process.env.NODE_ENV = 'production'
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const object = {}
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u.freeze(object)
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expect(Object.isFrozen(object)).to.be.false
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})
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it('handles null objects', () => {
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const object = { foo: null }
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u.freeze(object)
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expect(Object.isFrozen(object)).to.be.true
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})
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it('returns the same object', () => {
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const object = {}
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const result = u.freeze(object)
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expect(result).to.equal(object)
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})
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})
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