updeep-remeda/test/freeze-spec.js
2017-04-18 17:55:46 -07:00

75 lines
1.6 KiB
JavaScript

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