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index.test.js
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index.test.js
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/* eslint-env jest */
import http from 'http'
import fs from 'fs-extra'
import { join } from 'path'
import cheerio from 'cheerio'
import { nextServer, waitFor } from 'next-test-utils'
import {
fetchViaHTTP,
findPort,
nextBuild,
renderViaHTTP,
} from 'next-test-utils'
const appDir = join(__dirname, '..')
let server
let nextApp
let appPort
let buildId
let requiredFilesManifest
let errors = []
describe('Required Server Files', () => {
beforeAll(async () => {
await fs.remove(join(appDir, '.next'))
await nextBuild(appDir, undefined, {
env: {
NOW_BUILDER: '1',
},
})
buildId = await fs.readFile(join(appDir, '.next/BUILD_ID'), 'utf8')
requiredFilesManifest = await fs.readJSON(
join(appDir, '.next/required-server-files.json')
)
let files = await fs.readdir(join(appDir, '.next'))
for (const file of files) {
if (
file === 'server' ||
file === 'required-server-files.json' ||
requiredFilesManifest.files.includes(join('.next', file))
) {
continue
}
console.log('removing', join('.next', file))
await fs.remove(join(appDir, '.next', file))
}
await fs.rename(join(appDir, 'pages'), join(appDir, 'pages-bak'))
nextApp = nextServer({
conf: {},
dir: appDir,
quiet: false,
minimalMode: true,
})
appPort = await findPort()
server = http.createServer(async (req, res) => {
try {
await nextApp.getRequestHandler()(req, res)
} catch (err) {
console.error('top-level', err)
errors.push(err)
res.statusCode = 500
res.end('error')
}
})
await new Promise((res, rej) => {
server.listen(appPort, (err) => (err ? rej(err) : res()))
})
console.log(`Listening at ::${appPort}`)
})
afterAll(async () => {
if (server) server.close()
await fs.rename(join(appDir, 'pages-bak'), join(appDir, 'pages'))
})
it('should output required-server-files manifest correctly', async () => {
expect(requiredFilesManifest.version).toBe(1)
expect(Array.isArray(requiredFilesManifest.files)).toBe(true)
expect(Array.isArray(requiredFilesManifest.ignore)).toBe(true)
expect(requiredFilesManifest.files.length).toBeGreaterThan(0)
expect(requiredFilesManifest.ignore.length).toBeGreaterThan(0)
expect(typeof requiredFilesManifest.config.configFile).toBe('undefined')
expect(typeof requiredFilesManifest.config.trailingSlash).toBe('boolean')
expect(typeof requiredFilesManifest.appDir).toBe('string')
for (const file of requiredFilesManifest.files) {
console.log('checking', file)
expect(await fs.exists(join(appDir, file))).toBe(true)
}
expect(await fs.exists(join(appDir, '.next/server'))).toBe(true)
})
it('should render SSR page correctly', async () => {
const html = await renderViaHTTP(appPort, '/')
const $ = cheerio.load(html)
const data = JSON.parse($('#props').text())
expect($('#index').text()).toBe('index page')
expect(data.hello).toBe('world')
const html2 = await renderViaHTTP(appPort, '/')
const $2 = cheerio.load(html2)
const data2 = JSON.parse($2('#props').text())
expect($2('#index').text()).toBe('index page')
expect(isNaN(data2.random)).toBe(false)
expect(data2.random).not.toBe(data.random)
})
it('should render dynamic SSR page correctly', async () => {
const html = await renderViaHTTP(appPort, '/dynamic/first')
const $ = cheerio.load(html)
const data = JSON.parse($('#props').text())
expect($('#dynamic').text()).toBe('dynamic page')
expect($('#slug').text()).toBe('first')
expect(data.hello).toBe('world')
const html2 = await renderViaHTTP(appPort, '/dynamic/second')
const $2 = cheerio.load(html2)
const data2 = JSON.parse($2('#props').text())
expect($2('#dynamic').text()).toBe('dynamic page')
expect($2('#slug').text()).toBe('second')
expect(isNaN(data2.random)).toBe(false)
expect(data2.random).not.toBe(data.random)
})
it('should render fallback page correctly', async () => {
const html = await renderViaHTTP(appPort, '/fallback/first')
const $ = cheerio.load(html)
const data = JSON.parse($('#props').text())
expect($('#fallback').text()).toBe('fallback page')
expect($('#slug').text()).toBe('first')
expect(data.hello).toBe('world')
await waitFor(2000)
const html2 = await renderViaHTTP(appPort, '/fallback/first')
const $2 = cheerio.load(html2)
const data2 = JSON.parse($2('#props').text())
expect($2('#fallback').text()).toBe('fallback page')
expect($2('#slug').text()).toBe('first')
expect(isNaN(data2.random)).toBe(false)
expect(data2.random).not.toBe(data.random)
const html3 = await renderViaHTTP(appPort, '/fallback/second')
const $3 = cheerio.load(html3)
const data3 = JSON.parse($3('#props').text())
expect($3('#fallback').text()).toBe('fallback page')
expect($3('#slug').text()).toBe('second')
expect(isNaN(data3.random)).toBe(false)
const { pageProps: data4 } = JSON.parse(
await renderViaHTTP(appPort, `/_next/data/${buildId}/fallback/third.json`)
)
expect(data4.hello).toBe('world')
expect(data4.slug).toBe('third')
})
it('should render SSR page correctly with x-matched-path', async () => {
const html = await renderViaHTTP(appPort, '/some-other-path', undefined, {
headers: {
'x-matched-path': '/',
},
})
const $ = cheerio.load(html)
const data = JSON.parse($('#props').text())
expect($('#index').text()).toBe('index page')
expect(data.hello).toBe('world')
const html2 = await renderViaHTTP(appPort, '/some-other-path', undefined, {
headers: {
'x-matched-path': '/',
},
})
const $2 = cheerio.load(html2)
const data2 = JSON.parse($2('#props').text())
expect($2('#index').text()).toBe('index page')
expect(isNaN(data2.random)).toBe(false)
expect(data2.random).not.toBe(data.random)
})
it('should render dynamic SSR page correctly with x-matched-path', async () => {
const html = await renderViaHTTP(appPort, '/some-other-path', undefined, {
headers: {
'x-matched-path': '/dynamic/[slug]?slug=first',
},
})
const $ = cheerio.load(html)
const data = JSON.parse($('#props').text())
expect($('#dynamic').text()).toBe('dynamic page')
expect($('#slug').text()).toBe('first')
expect(data.hello).toBe('world')
const html2 = await renderViaHTTP(appPort, '/some-other-path', undefined, {
headers: {
'x-matched-path': '/dynamic/[slug]?slug=second',
},
})
const $2 = cheerio.load(html2)
const data2 = JSON.parse($2('#props').text())
expect($2('#dynamic').text()).toBe('dynamic page')
expect($2('#slug').text()).toBe('second')
expect(isNaN(data2.random)).toBe(false)
expect(data2.random).not.toBe(data.random)
})
it('should render fallback page correctly with x-matched-path and routes-matches', async () => {
const html = await renderViaHTTP(appPort, '/fallback/first', undefined, {
headers: {
'x-matched-path': '/fallback/first',
'x-now-route-matches': '1=first',
},
})
const $ = cheerio.load(html)
const data = JSON.parse($('#props').text())
expect($('#fallback').text()).toBe('fallback page')
expect($('#slug').text()).toBe('first')
expect(data.hello).toBe('world')
const html2 = await renderViaHTTP(appPort, `/fallback/[slug]`, undefined, {
headers: {
'x-matched-path': '/fallback/[slug]',
'x-now-route-matches': '1=second',
},
})
const $2 = cheerio.load(html2)
const data2 = JSON.parse($2('#props').text())
expect($2('#fallback').text()).toBe('fallback page')
expect($2('#slug').text()).toBe('second')
expect(isNaN(data2.random)).toBe(false)
expect(data2.random).not.toBe(data.random)
})
it('should return data correctly with x-matched-path', async () => {
const res = await fetchViaHTTP(
appPort,
`/_next/data/${buildId}/dynamic/first.json`,
undefined,
{
headers: {
'x-matched-path': '/dynamic/[slug]?slug=first',
},
}
)
const { pageProps: data } = await res.json()
expect(data.slug).toBe('first')
expect(data.hello).toBe('world')
const res2 = await fetchViaHTTP(
appPort,
`/_next/data/${buildId}/fallback/[slug].json`,
undefined,
{
headers: {
'x-matched-path': `/_next/data/${buildId}/fallback/[slug].json`,
'x-now-route-matches': '1=second',
},
}
)
const { pageProps: data2 } = await res2.json()
expect(data2.slug).toBe('second')
expect(data2.hello).toBe('world')
})
it('should render fallback optional catch-all route correctly with x-matched-path and routes-matches', async () => {
const html = await renderViaHTTP(
appPort,
'/catch-all/[[...rest]]',
undefined,
{
headers: {
'x-matched-path': '/catch-all/[[...rest]]',
'x-now-route-matches': '',
},
}
)
const $ = cheerio.load(html)
const data = JSON.parse($('#props').text())
expect($('#catch-all').text()).toBe('optional catch-all page')
expect(data.params).toEqual({})
expect(data.hello).toBe('world')
const html2 = await renderViaHTTP(
appPort,
'/catch-all/[[...rest]]',
undefined,
{
headers: {
'x-matched-path': '/catch-all/[[...rest]]',
'x-now-route-matches': '1=hello&catchAll=hello',
},
}
)
const $2 = cheerio.load(html2)
const data2 = JSON.parse($2('#props').text())
expect($2('#catch-all').text()).toBe('optional catch-all page')
expect(data2.params).toEqual({ rest: ['hello'] })
expect(isNaN(data2.random)).toBe(false)
expect(data2.random).not.toBe(data.random)
const html3 = await renderViaHTTP(
appPort,
'/catch-all/[[..rest]]',
undefined,
{
headers: {
'x-matched-path': '/catch-all/[[...rest]]',
'x-now-route-matches': '1=hello/world&catchAll=hello/world',
},
}
)
const $3 = cheerio.load(html3)
const data3 = JSON.parse($3('#props').text())
expect($3('#catch-all').text()).toBe('optional catch-all page')
expect(data3.params).toEqual({ rest: ['hello', 'world'] })
expect(isNaN(data3.random)).toBe(false)
expect(data3.random).not.toBe(data.random)
})
it('should return data correctly with x-matched-path for optional catch-all route', async () => {
const res = await fetchViaHTTP(
appPort,
`/_next/data/${buildId}/catch-all.json`,
undefined,
{
headers: {
'x-matched-path': '/catch-all/[[...rest]]',
},
}
)
const { pageProps: data } = await res.json()
expect(data.params).toEqual({})
expect(data.hello).toBe('world')
const res2 = await fetchViaHTTP(
appPort,
`/_next/data/${buildId}/catch-all/[[...rest]].json`,
undefined,
{
headers: {
'x-matched-path': `/_next/data/${buildId}/catch-all/[[...rest]].json`,
'x-now-route-matches': '1=hello&rest=hello',
},
}
)
const { pageProps: data2 } = await res2.json()
expect(data2.params).toEqual({ rest: ['hello'] })
expect(data2.hello).toBe('world')
const res3 = await fetchViaHTTP(
appPort,
`/_next/data/${buildId}/catch-all/[[...rest]].json`,
undefined,
{
headers: {
'x-matched-path': `/_next/data/${buildId}/catch-all/[[...rest]].json`,
'x-now-route-matches': '1=hello/world&rest=hello/world',
},
}
)
const { pageProps: data3 } = await res3.json()
expect(data3.params).toEqual({ rest: ['hello', 'world'] })
expect(data3.hello).toBe('world')
})
it('should not apply trailingSlash redirect', async () => {
for (const path of [
'/',
'/dynamic/another/',
'/dynamic/another',
'/fallback/first/',
'/fallback/first',
'/fallback/another/',
'/fallback/another',
]) {
const res = await fetchViaHTTP(appPort, path, undefined, {
redirect: 'manual',
})
expect(res.status).toBe(200)
}
})
it('should normalize catch-all rewrite query values correctly', async () => {
const html = await renderViaHTTP(
appPort,
'/some-catch-all/hello/world',
{
path: 'hello/world',
},
{
headers: {
'x-matched-path': '/',
},
}
)
const $ = cheerio.load(html)
expect(JSON.parse($('#router').text()).query).toEqual({
path: ['hello', 'world'],
})
})
it('should bubble error correctly for gip page', async () => {
errors = []
const res = await fetchViaHTTP(appPort, '/errors/gip', { crash: '1' })
expect(res.status).toBe(500)
expect(await res.text()).toBe('error')
expect(errors.length).toBe(1)
expect(errors[0].message).toContain('gip hit an oops')
})
it('should bubble error correctly for gssp page', async () => {
errors = []
const res = await fetchViaHTTP(appPort, '/errors/gssp', { crash: '1' })
expect(res.status).toBe(500)
expect(await res.text()).toBe('error')
expect(errors.length).toBe(1)
expect(errors[0].message).toContain('gssp hit an oops')
})
it('should bubble error correctly for gsp page', async () => {
errors = []
const res = await fetchViaHTTP(appPort, '/errors/gsp/crash')
expect(res.status).toBe(500)
expect(await res.text()).toBe('error')
expect(errors.length).toBe(1)
expect(errors[0].message).toContain('gsp hit an oops')
})
it('should normalize optional values correctly for SSP page', async () => {
const res = await fetchViaHTTP(
appPort,
'/optional-ssp',
{ rest: '', another: 'value' },
{
headers: {
'x-matched-path': '/optional-ssp/[[...rest]]',
},
}
)
const html = await res.text()
const $ = cheerio.load(html)
const props = JSON.parse($('#props').text())
expect(props.params).toEqual({})
expect(props.query).toEqual({ another: 'value' })
})
it('should normalize optional values correctly for SSG page', async () => {
const res = await fetchViaHTTP(
appPort,
'/optional-ssg',
{ rest: '', another: 'value' },
{
headers: {
'x-matched-path': '/optional-ssg/[[...rest]]',
},
}
)
const html = await res.text()
const $ = cheerio.load(html)
const props = JSON.parse($('#props').text())
expect(props.params).toEqual({})
})
it('should normalize optional values correctly for API page', async () => {
const res = await fetchViaHTTP(
appPort,
'/api/optional',
{ rest: '', another: 'value' },
{
headers: {
'x-matched-path': '/api/optional/[[...rest]]',
},
}
)
const json = await res.json()
expect(json.query).toEqual({ another: 'value' })
expect(json.url).toBe('/api/optional?another=value')
})
it('should match the index page correctly', async () => {
const res = await fetchViaHTTP(appPort, '/', undefined, {
headers: {
'x-matched-path': '/index',
},
redirect: 'manual',
})
const html = await res.text()
const $ = cheerio.load(html)
expect($('#index').text()).toBe('index page')
})
it('should match the root dynamic page correctly', async () => {
const res = await fetchViaHTTP(appPort, '/index', undefined, {
headers: {
'x-matched-path': '/[slug]',
},
redirect: 'manual',
})
const html = await res.text()
const $ = cheerio.load(html)
expect($('#slug-page').text()).toBe('[slug] page')
})
it('should handle 404s properly', async () => {
for (const pathname of [
'/_next/static/chunks/pages/index-abc123.js',
'/_next/static/some-file.js',
'/static/some-file.js',
'/non-existent',
'/404',
]) {
const res = await fetchViaHTTP(appPort, pathname, undefined, {
headers: {
'x-matched-path': '/404',
redirect: 'manual',
},
})
expect(res.status).toBe(404)
expect(await res.text()).toContain('custom 404')
}
})
})