Nuxt/packages/core/test/nuxt.test.js

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import consola from 'consola'
import { defineAlias } from '@nuxt/utils'
import { getNuxtConfig } from '@nuxt/config'
import { Server } from '@nuxt/server'
import Nuxt from '../src/nuxt'
import ModuleContainer from '../src/module'
import Hookable from '../src/hookable'
import Resolver from '../src/resolver'
import { version } from '../package.json'
jest.mock('@nuxt/utils')
jest.mock('@nuxt/config', () => ({
getNuxtConfig: jest.fn(() => ({}))
}))
jest.mock('@nuxt/server')
describe('core: nuxt', () => {
beforeEach(() => {
jest.clearAllMocks()
jest.spyOn(Nuxt.prototype, 'ready').mockImplementation(() => Promise.resolve())
})
afterEach(() => {
if (Nuxt.prototype.ready.mockRestore) {
Nuxt.prototype.ready.mockRestore()
}
})
test('should construct nuxt with options', () => {
const options = {}
const nuxt = new Nuxt(options)
expect(nuxt).toBeInstanceOf(Hookable)
expect(getNuxtConfig).toBeCalledTimes(1)
expect(getNuxtConfig).toBeCalledWith(options)
expect(nuxt.resolver).toBeInstanceOf(Resolver)
expect(nuxt.moduleContainer).toBeInstanceOf(ModuleContainer)
expect(nuxt.server).toBeInstanceOf(Server)
expect(nuxt._deprecatedHooks).toEqual({
'render:context': 'render:routeContext',
'showReady': 'webpack:done'
})
expect(defineAlias).toBeCalledTimes(2)
expect(defineAlias).nthCalledWith(1, nuxt, nuxt.server, ['renderRoute', 'renderAndGetWindow', 'listen'])
expect(defineAlias).nthCalledWith(2, nuxt, nuxt.resolver, ['resolveAlias', 'resolvePath'])
expect(nuxt.renderer).toBe(nuxt.server)
expect(nuxt.render).toBe(nuxt.server.app)
expect(nuxt.showReady).toBeInstanceOf(Function)
expect(nuxt.initialized).toEqual(false)
expect(nuxt.ready).toBeCalledTimes(1)
})
test('should call hook webpack:done in showReady', () => {
const nuxt = new Nuxt()
nuxt.callHook = jest.fn()
nuxt.showReady()
expect(nuxt.callHook).toBeCalledTimes(1)
expect(nuxt.callHook).toBeCalledWith('webpack:done')
})
test('should display fatal message if ready failed', async () => {
const err = new Error('nuxt ready failed')
Nuxt.prototype.ready.mockImplementation(() => Promise.reject(err))
const nuxt = new Nuxt()
await nuxt._ready
expect(consola.fatal).toBeCalledTimes(1)
expect(consola.fatal).toBeCalledWith(err)
})
test('should return nuxt version from package.json', () => {
expect(Nuxt.version).toEqual(`v${version}`)
})
test('should return nuxt version from global.__NUXT', () => {
global.__NUXT = {
version: 'latest'
}
expect(Nuxt.version).toEqual('latest')
delete global.__NUXT
})
test('should call module/server ready in nuxt.ready', async () => {
const nuxt = new Nuxt()
delete nuxt._ready
Nuxt.prototype.ready.mockRestore()
nuxt.callHook = jest.fn()
nuxt.server = { ready: jest.fn() }
nuxt.moduleContainer = { ready: jest.fn() }
const result = await nuxt.ready()
expect(result).toBe(nuxt)
expect(nuxt.moduleContainer.ready).toBeCalledTimes(1)
expect(nuxt.server.ready).toBeCalledTimes(1)
expect(nuxt.initialized).toEqual(true)
expect(nuxt.callHook).toBeCalledTimes(1)
expect(nuxt.callHook).toBeCalledWith('ready', nuxt)
})
test('should ignore ready when _ready exists', async () => {
const nuxt = new Nuxt()
Nuxt.prototype.ready.mockRestore()
const _ready = nuxt._ready = jest.fn()
nuxt.server = { ready: jest.fn() }
const result = await nuxt.ready()
expect(result).toBe(_ready)
expect(nuxt.server.ready).not.toBeCalled()
})
test('should add object hooks', async () => {
const hooks = {}
getNuxtConfig.mockReturnValueOnce({ hooks })
const nuxt = new Nuxt()
delete nuxt._ready
Nuxt.prototype.ready.mockRestore()
nuxt.addHooks = jest.fn()
nuxt.server = { ready: jest.fn() }
nuxt.moduleContainer = { ready: jest.fn() }
await nuxt.ready()
expect(nuxt.addHooks).toBeCalledTimes(1)
expect(nuxt.addHooks).toBeCalledWith(hooks)
})
test('should add function hooks', async () => {
const hooks = jest.fn()
getNuxtConfig.mockReturnValueOnce({ hooks })
const nuxt = new Nuxt()
delete nuxt._ready
Nuxt.prototype.ready.mockRestore()
nuxt.addHooks = jest.fn()
nuxt.server = { ready: jest.fn() }
nuxt.moduleContainer = { ready: jest.fn() }
await nuxt.ready()
expect(nuxt.addHooks).not.toBeCalled()
expect(hooks).toBeCalledTimes(1)
})
test('should close nuxt with hook triggered', async () => {
const nuxt = new Nuxt()
nuxt.callHook = jest.fn()
nuxt.clearHooks = jest.fn()
const cb = jest.fn()
await nuxt.close(cb)
expect(cb).toBeCalledTimes(1)
expect(nuxt.callHook).toBeCalledTimes(1)
expect(nuxt.callHook).toBeCalledWith('close', nuxt)
expect(nuxt.clearHooks).toBeCalledTimes(1)
})
test('should ignore non-function callback in close', async () => {
const nuxt = new Nuxt()
delete nuxt._ready
Nuxt.prototype.ready.mockRestore()
nuxt.callHook = jest.fn()
nuxt.server = { ready: jest.fn() }
nuxt.moduleContainer = { ready: jest.fn() }
const result = await nuxt.ready()
expect(result).toBe(nuxt)
expect(nuxt.moduleContainer.ready).toBeCalledTimes(1)
expect(nuxt.server.ready).toBeCalledTimes(1)
expect(nuxt.initialized).toEqual(true)
expect(nuxt.callHook).toBeCalledTimes(1)
expect(nuxt.callHook).toBeCalledWith('ready', nuxt)
})
test('should ignore non-function callback in close', async () => {
const nuxt = new Nuxt()
nuxt.callHook = jest.fn()
nuxt.clearHooks = jest.fn()
const cb = {}
await nuxt.close(cb)
expect(nuxt.callHook).toBeCalledTimes(1)
expect(nuxt.clearHooks).toBeCalledTimes(1)
})
})