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104 lines
3.1 KiB
JavaScript
104 lines
3.1 KiB
JavaScript
import consola from 'consola'
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import onHeaders from 'on-headers'
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import { Timer } from '@nuxt/utils'
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import createTimingMiddleware from '../../src/middleware/timing'
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jest.mock('on-headers')
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jest.mock('@nuxt/utils')
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const createServerContext = () => ({
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req: {},
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res: {
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getHeader: jest.fn(),
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setHeader: jest.fn()
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},
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next: jest.fn()
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})
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describe('server: timingMiddleware', () => {
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beforeEach(() => {
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jest.clearAllMocks()
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})
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test('should return timing middleware', () => {
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const timingMiddleware = createTimingMiddleware({})
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expect(timingMiddleware).toBeInstanceOf(Function)
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})
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test('should warn duplicate registration', () => {
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const timingMiddleware = createTimingMiddleware({})
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const ctx = createServerContext()
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ctx.res.timing = true
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timingMiddleware(ctx.req, ctx.res, ctx.next)
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expect(consola.warn).toBeCalledWith('server-timing is already registered.')
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})
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test('should register timer for recording timing', () => {
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const timingMiddleware = createTimingMiddleware({ total: true })
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const ctx = createServerContext()
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timingMiddleware(ctx.req, ctx.res, ctx.next)
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expect(ctx.res.timing).toBeDefined()
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expect(Timer.prototype.start).toBeCalledTimes(1)
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expect(Timer.prototype.start).toBeCalledWith('total', 'Nuxt Server Time')
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expect(onHeaders).toBeCalledTimes(1)
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expect(onHeaders).toBeCalledWith(ctx.res, expect.any(Function))
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expect(ctx.next).toBeCalledTimes(1)
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})
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test('should add Server-Timing header before sending header', () => {
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const timingMiddleware = createTimingMiddleware({ total: true })
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const ctx = createServerContext()
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timingMiddleware(ctx.req, ctx.res, ctx.next)
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const headerCallback = onHeaders.mock.calls[0][1]
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Timer.prototype.end.mockReturnValueOnce({
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name: 'total',
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duration: 300,
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description: 'Nuxt Server Time'
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})
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headerCallback()
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expect(ctx.res.timing.end).toBeCalledTimes(1)
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expect(ctx.res.timing.end).toBeCalledWith('total')
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expect(ctx.res.getHeader).toBeCalledTimes(1)
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expect(ctx.res.getHeader).toBeCalledWith('Server-Timing')
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expect(ctx.res.setHeader).toBeCalledTimes(1)
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expect(ctx.res.setHeader).toBeCalledWith('Server-Timing', 'total;dur=300;desc="Nuxt Server Time"')
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})
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test('should ignore desc if empty', () => {
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const timingMiddleware = createTimingMiddleware({})
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const ctx = createServerContext()
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timingMiddleware(ctx.req, ctx.res, ctx.next)
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expect(
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ctx.res.timing.formatHeader({
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name: 'timing-test',
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duration: 300
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})
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).toEqual('timing-test;dur=300')
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})
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test('should not send Server-Timing header if empty', () => {
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const timingMiddleware = createTimingMiddleware({ total: true })
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const ctx = createServerContext()
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timingMiddleware(ctx.req, ctx.res, ctx.next)
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const headerCallback = onHeaders.mock.calls[0][1]
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headerCallback()
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expect(ctx.res.timing.end).toBeCalledTimes(1)
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expect(ctx.res.timing.end).toBeCalledWith('total')
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expect(ctx.res.getHeader).not.toBeCalled()
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expect(ctx.res.setHeader).not.toBeCalled()
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})
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})
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