import { uniq } from 'lodash' import { loadFixture, getPort, Nuxt, rp, sequence, parallel } from '../utils' let port let nuxt = null // Utils const range = n => [...Array(n).keys()] const FOOBAR_REGEX = /([\s\S]*)<\/Foobar>/ const match = (regex, text) => (regex.exec(text) || [])[1] const url = route => 'http://127.0.0.1:' + port + route // const isWindows = /^win/.test(process.platform) // == Uniq Test == // The idea behind is pages using a shared nextId() which returns an incrementing id // So all responses should strictly be different and length of unique responses should equal to responses // We strictly compare {id} section // Because other response parts such as window.__NUXT may be different resulting false positive passes. const uniqueTest = async (url) => { const results = [] await parallel(range(5), async () => { const { html } = await nuxt.server.renderRoute(url) const foobar = match(FOOBAR_REGEX, html) results.push(parseInt(foobar)) }) const isUnique = uniq(results).length === results.length if (!isUnique) { /* eslint-disable no-console */ console.log(url + '\n' + results.join(', ') + '\n') } expect(isUnique).toBe(true) return results } // == Stress Test == // The idea of this test is to ensure there is no memory or data leak during SSR requests // Or pending promises/sockets and function calls. // Related issue: https://github.com/nuxt/nuxt.js/issues/1354 const stressTest = async (_url, concurrency = 2, steps = 4) => { const statusCodes = {} await sequence(range(steps), async () => { await parallel(range(concurrency), async () => { const response = await rp(url(_url)) // Status Code const code = response.statusCode if (!statusCodes[code]) { statusCodes[code] = 0 } statusCodes[code]++ }) }) expect(statusCodes[200]).toBe(concurrency * steps) } describe('ssr', () => { beforeAll(async () => { const config = await loadFixture('ssr') nuxt = new Nuxt(config) await nuxt.ready() port = await getPort() await nuxt.server.listen(port, '127.0.0.1') }) test('unique responses with data()', async () => { await uniqueTest('/data') }) test('unique responses with component', async () => { await uniqueTest('/component') }) test('unique responses with async components', async () => { await uniqueTest('/asyncComponent') }) test('unique responses with asyncData()', async () => { await uniqueTest('/asyncData') }) test('unique responses with store initial state', async () => { await uniqueTest('/store') }) test('unique responses with nuxtServerInit', async () => { await uniqueTest('/store?onServerInit=1') }) test('unique responses with fetch', async () => { await uniqueTest('/fetch') }) test('store undefined variable response', async () => { const window = await nuxt.server.renderAndGetWindow(url('/store')) expect('idUndefined' in window.__NUXT__.state).toBe(true) expect(window.__NUXT__.state.idUndefined).toEqual(undefined) }) test('stress test with asyncData', async () => { await stressTest('/asyncData') }) test('does not share state', async () => { const [page1, page2] = await Promise.all([ nuxt.server.renderRoute('/context'), nuxt.server.renderRoute('/context/child') ]) expect(page1.html).toContain('vm: /context') expect(page1.html).toContain('context: /context') expect(page2.html).toContain('vm: /context/child') expect(page2.html).toContain('context: /context/child') }) // Close server and ask nuxt to stop listening to file changes afterAll(async () => { await nuxt.close() }) })