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index.test.js
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index.test.js
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/* eslint-env jest */
/* global browserName */
import cheerio from 'cheerio'
import fs, { existsSync } from 'fs-extra'
import globOriginal from 'glob'
import {
renderViaHTTP,
waitFor,
getPageFileFromPagesManifest,
check,
nextBuild,
nextStart,
findPort,
killApp,
fetchViaHTTP,
} from 'next-test-utils'
import webdriver from 'next-webdriver'
import {
BUILD_MANIFEST,
PAGES_MANIFEST,
REACT_LOADABLE_MANIFEST,
} from 'next/constants'
import { recursiveReadDir } from 'next/dist/lib/recursive-readdir'
import { join, sep } from 'path'
import dynamicImportTests from './dynamic'
import processEnv from './process-env'
import security from './security'
import { promisify } from 'util'
import { error } from 'console'
const glob = promisify(globOriginal)
const appDir = join(__dirname, '../')
let appPort
let app
const context = {}
describe('Production Usage', () => {
let output = ''
beforeAll(async () => {
let opts = {
stderr: true,
stdout: true,
}
if (process.env.TEST_WASM) {
opts.env = {
NODE_OPTIONS: '--no-addons',
}
}
const result = await nextBuild(appDir, undefined, opts)
appPort = await findPort()
context.appPort = appPort
app = await nextStart(appDir, appPort, { cwd: appDir })
output = (result.stderr || '') + (result.stdout || '')
if (result.code !== 0) {
error(output)
throw new Error(`Failed to build, exited with code ${result.code}`)
} else {
// Note: jest captures calls to console and only emits when there's assertion fails,
// so this won't log anything for normal test execution path.
console.log(output)
}
})
afterAll(async () => {
await killApp(app)
})
it('should navigate through history after query update', async () => {
const browser = await webdriver(appPort, '/')
await browser.eval('window.next.router.push("/about?a=b")')
await browser.waitForElementByCss('.about-page')
await browser.waitForCondition(`!!window.next.router.isReady`)
await browser.refresh()
await browser.waitForCondition(`!!window.next.router.isReady`)
await browser.back()
await browser.waitForElementByCss('.index-page')
await browser.forward()
await browser.waitForElementByCss('.about-page')
await browser.back()
await browser.waitForElementByCss('.index-page')
await browser.refresh()
await browser.waitForCondition(`!!window.next.router.isReady`)
await browser.forward()
await browser.waitForElementByCss('.about-page')
})
it('should not show target deprecation warning', () => {
expect(output).not.toContain(
'The `target` config is deprecated and will be removed in a future version'
)
})
it('should respond with 405 for POST to static page', async () => {
const res = await fetchViaHTTP(appPort, '/', undefined, {
method: 'POST',
})
expect(res.status).toBe(405)
expect(await res.text()).toContain('Method Not Allowed')
})
it('should contain generated page count in output', async () => {
const pageCount = 40
expect(output).toContain(`Generating static pages (0/${pageCount})`)
expect(output).toContain(
`Generating static pages (${pageCount}/${pageCount})`
)
// we should only have 4 segments and the initial message logged out
expect(output.match(/Generating static pages/g).length).toBe(5)
})
it('should output traces', async () => {
const serverTrace = await fs.readJSON(
join(appDir, '.next/next-server.js.nft.json')
)
expect(serverTrace.version).toBe(1)
expect(
serverTrace.files.some((file) =>
file.includes('next/dist/server/send-payload/index.js')
)
).toBe(true)
const repoRoot = join(__dirname, '../../../../')
expect(
serverTrace.files.some((file) => {
const fullPath = join(__dirname, '../.next', file)
if (!fullPath.startsWith(repoRoot)) {
console.error(`Found next-server trace file outside repo root`, {
repoRoot,
fullPath,
file,
})
return true
}
return false
})
).toBe(false)
expect(
serverTrace.files.some((file) =>
file.includes('next/dist/shared/lib/page-path/normalize-page-path.js')
)
).toBe(true)
expect(
serverTrace.files.some((file) =>
file.includes('next/dist/server/render.js')
)
).toBe(true)
expect(
serverTrace.files.some((file) =>
file.includes('next/dist/server/load-components.js')
)
).toBe(true)
if (process.platform !== 'win32') {
expect(
serverTrace.files.some((file) =>
file.includes('next/dist/compiled/webpack/bundle5.js')
)
).toBe(false)
expect(
serverTrace.files.some((file) => file.includes('node_modules/sharp'))
).toBe(false)
}
const checks = [
{
page: '/_app',
tests: [
/webpack-runtime\.js/,
/node_modules\/react\/index\.js/,
/node_modules\/react\/package\.json/,
/node_modules\/react\/cjs\/react\.production\.min\.js/,
],
notTests: [/\0/, /\?/, /!/],
},
{
page: '/client-error',
tests: [
/webpack-runtime\.js/,
/chunks\/.*?\.js/,
/node_modules\/react\/index\.js/,
/node_modules\/react\/package\.json/,
/node_modules\/react\/cjs\/react\.production\.min\.js/,
/node_modules\/next/,
/next\/link\.js/,
/next\/dist\/shared\/lib\/router\/utils\/resolve-rewrites\.js/,
/next\/error\.js/,
],
notTests: [/\0/, /\?/, /!/],
},
{
page: '/dynamic',
tests: [
/webpack-runtime\.js/,
/chunks\/.*?\.js/,
/node_modules\/react\/index\.js/,
/node_modules\/react\/package\.json/,
/node_modules\/react\/cjs\/react\.production\.min\.js/,
/node_modules\/next/,
/next\/link\.js/,
/next\/dist\/shared\/lib\/router\/utils\/resolve-rewrites\.js/,
],
notTests: [/\0/, /\?/, /!/],
},
{
page: '/index',
tests: [
/webpack-runtime\.js/,
/chunks\/.*?\.js/,
/node_modules\/react\/index\.js/,
/node_modules\/react\/package\.json/,
/node_modules\/react\/cjs\/react\.production\.min\.js/,
/node_modules\/next/,
/next\/link\.js/,
/next\/dist\/shared\/lib\/router\/utils\/resolve-rewrites\.js/,
/node_modules\/nanoid\/index\.js/,
/node_modules\/nanoid\/url-alphabet\/index\.js/,
/node_modules\/es5-ext\/array\/#\/clear\.js/,
],
notTests: [
/next\/dist\/pages\/_error\.js/,
/next\/error\.js/,
/\0/,
/\?/,
/!/,
],
},
{
page: '/counter',
tests: [
/webpack-runtime\.js/,
/chunks\/.*?\.js/,
/node_modules\/react\/index\.js/,
/node_modules\/react\/package\.json/,
/node_modules\/react\/cjs\/react\.production\.min\.js/,
/node_modules\/react\/cjs\/react\.development\.js/,
/node_modules\/next/,
/next\/router\.js/,
/next\/dist\/shared\/lib\/router\/utils\/resolve-rewrites\.js/,
],
notTests: [/\0/, /\?/, /!/],
},
{
page: '/next-import',
tests: [
/webpack-runtime\.js/,
/chunks\/.*?\.js/,
/node_modules\/react\/index\.js/,
/node_modules\/react\/package\.json/,
/node_modules\/react\/cjs\/react\.production\.min\.js/,
/node_modules\/next/,
/next\/link\.js/,
/next\/dist\/shared\/lib\/router\/utils\/resolve-rewrites\.js/,
],
notTests: [
/next\/dist\/server\/next\.js/,
/next\/dist\/bin/,
/\0/,
/\?/,
/!/,
],
},
{
page: '/api',
tests: [/webpack-runtime\.js/, /\/logo\.module\.css/],
notTests: [
/next\/dist\/server\/next\.js/,
/next\/dist\/bin/,
/\0/,
/\?/,
/!/,
],
},
{
page: '/api/readfile-dirname',
tests: [/webpack-api-runtime\.js/, /static\/data\/item\.txt/],
notTests: [
/next\/dist\/server\/next\.js/,
/next\/dist\/bin/,
/\0/,
/\?/,
/!/,
],
},
{
page: '/api/readfile-processcwd',
tests: [/webpack-api-runtime\.js/, /static\/data\/item\.txt/],
notTests: [
/next\/dist\/server\/next\.js/,
/next\/dist\/bin/,
/\0/,
/\?/,
/!/,
],
},
]
for (const check of checks) {
const contents = await fs.readFile(
join(appDir, '.next/server/pages/', check.page + '.js.nft.json'),
'utf8'
)
const { version, files } = JSON.parse(contents)
expect(version).toBe(1)
expect([...new Set(files)].length).toBe(files.length)
expect(
check.tests.every((item) => {
if (files.some((file) => item.test(file))) {
return true
}
console.error(`Failed to find ${item} in`, files)
return false
})
).toBe(true)
if (sep === '/') {
expect(
check.notTests.some((item) => {
if (files.some((file) => item.test(file))) {
console.error(`Found unexpected ${item} in`, files)
return true
}
return false
})
).toBe(false)
}
}
})
it('should not contain currentScript usage for publicPath', async () => {
const globResult = await glob('webpack-*.js', {
cwd: join(appDir, '.next/static/chunks'),
})
if (!globResult || globResult.length !== 1) {
throw new Error('could not find webpack-hash.js chunk')
}
const content = await fs.readFile(
join(appDir, '.next/static/chunks', globResult[0]),
'utf8'
)
expect(content).not.toContain('.currentScript')
})
it('should not contain amp, rsc APIs in main chunk', async () => {
const globResult = await glob('main-*.js', {
cwd: join(appDir, '.next/static/chunks'),
})
if (!globResult || globResult.length !== 1) {
throw new Error('could not find main js chunk')
}
const content = await fs.readFile(
join(appDir, '.next/static/chunks', globResult[0]),
'utf8'
)
expect(content).not.toContain('useAmp')
expect(content).not.toContain('useRefreshRoot')
})
describe('With basic usage', () => {
it('should render the page', async () => {
const html = await renderViaHTTP(appPort, '/')
expect(html).toMatch(/Hello World/)
})
if (browserName === 'internet explorer') {
it('should handle bad Promise polyfill', async () => {
const browser = await webdriver(appPort, '/bad-promise')
expect(await browser.eval('window.didRender')).toBe(true)
})
it('should polyfill RegExp successfully', async () => {
const browser = await webdriver(appPort, '/regexp-polyfill')
expect(await browser.eval('window.didRender')).toBe(true)
// wait a second for the script to be loaded
await waitFor(1000)
expect(await browser.eval('window.isSticky')).toBe(true)
expect(await browser.eval('window.isMatch1')).toBe(true)
expect(await browser.eval('window.isMatch2')).toBe(false)
})
}
it('should polyfill Node.js modules', async () => {
const browser = await webdriver(appPort, '/node-browser-polyfills')
await browser.waitForCondition('window.didRender')
const data = await browser
.waitForElementByCss('#node-browser-polyfills')
.text()
const parsedData = JSON.parse(data)
expect(parsedData.vm).toBe(105)
expect(parsedData.hash).toBe(
'b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9'
)
expect(parsedData.path).toBe('/hello/world/test.txt')
expect(parsedData.buffer).toBe('hello world')
expect(parsedData.stream).toBe(true)
})
it('should allow etag header support', async () => {
const url = `http://localhost:${appPort}`
const etag = (await fetchViaHTTP(url, '/')).headers.get('ETag')
const headers = { 'If-None-Match': etag }
const res2 = await fetchViaHTTP(url, '/', undefined, { headers })
expect(res2.status).toBe(304)
})
it('should allow etag header support with getStaticProps', async () => {
const url = `http://localhost:${appPort}`
const etag = (await fetchViaHTTP(url, '/fully-static')).headers.get(
'ETag'
)
const headers = { 'If-None-Match': etag }
const res2 = await fetchViaHTTP(url, '/fully-static', undefined, {
headers,
})
expect(res2.status).toBe(304)
})
// TODO: should we generate weak etags for streaming getServerSideProps?
// this is currently not expected to work with react-18
it.skip('should allow etag header support with getServerSideProps', async () => {
const url = `http://localhost:${appPort}`
const etag = (await fetchViaHTTP(url, '/fully-dynamic')).headers.get(
'ETag'
)
const headers = { 'If-None-Match': etag }
const res2 = await fetchViaHTTP(url, '/fully-dynamic', undefined, {
headers,
})
expect(res2.status).toBe(304)
})
it('should have X-Powered-By header support', async () => {
const url = `http://localhost:${appPort}`
const header = (await fetchViaHTTP(url, '/')).headers.get('X-Powered-By')
expect(header).toBe('Next.js')
})
it('should render 404 for routes that do not exist', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, '/abcdefghijklmno')
const text = await res.text()
const $html = cheerio.load(text)
expect($html('html').text()).toMatch(/404/)
expect(text).toMatch(/"statusCode":404/)
expect(res.status).toBe(404)
})
it('should render 404 for /_next/static route', async () => {
const html = await renderViaHTTP(appPort, '/_next/static')
expect(html).toMatch(/This page could not be found/)
})
it('should render 200 for POST on page', async () => {
const res = await fetchViaHTTP(
`http://localhost:${appPort}`,
'/fully-dynamic',
undefined,
{
method: 'POST',
}
)
expect(res.status).toBe(200)
})
it('should render 404 for POST on missing page', async () => {
const res = await fetchViaHTTP(
`http://localhost:${appPort}`,
'/fake-page',
undefined,
{
method: 'POST',
}
)
expect(res.status).toBe(404)
})
it('should render 404 for _next routes that do not exist', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, '/_next/abcdef')
expect(res.status).toBe(404)
})
it('should render 404 even if the HTTP method is not GET or HEAD', async () => {
const url = `http://localhost:${appPort}`
const methods = ['POST', 'PUT', 'DELETE']
for (const method of methods) {
const res = await fetchViaHTTP(url, '/_next/abcdef', undefined, {
method,
})
expect(res.status).toBe(404)
}
})
it('should render 404 for dotfiles in /static', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, '/static/.env')
expect(res.status).toBe(404)
})
it('should return 405 method on static then GET and HEAD', async () => {
const res = await fetchViaHTTP(
`http://localhost:${appPort}`,
'/static/data/item.txt',
undefined,
{
method: 'POST',
}
)
expect(res.headers.get('allow').includes('GET')).toBe(true)
expect(res.status).toBe(405)
})
it('should return 412 on static file when If-Unmodified-Since is provided and file is modified', async () => {
const buildManifest = require(join(
__dirname,
'../.next/build-manifest.json'
))
const files = buildManifest.pages['/']
for (const file of files) {
const res = await fetchViaHTTP(
`http://localhost:${appPort}`,
`/_next/${file}`,
undefined,
{
method: 'GET',
headers: { 'if-unmodified-since': 'Fri, 12 Jul 2019 20:00:13 GMT' },
}
)
expect(res.status).toBe(412)
}
})
it('should return 200 on static file if If-Unmodified-Since is invalid date', async () => {
const buildManifest = require(join(
__dirname,
'../.next/build-manifest.json'
))
const files = buildManifest.pages['/']
for (const file of files) {
const res = await fetchViaHTTP(
`http://localhost:${appPort}`,
`/_next/${file}`,
undefined,
{
method: 'GET',
headers: { 'if-unmodified-since': 'nextjs' },
}
)
expect(res.status).toBe(200)
}
})
it('should set Content-Length header', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, '/')
expect(res.headers.get('Content-Length')).toBeDefined()
})
it('should set Cache-Control header', async () => {
const buildManifest = require(join('../.next', BUILD_MANIFEST))
const reactLoadableManifest = require(join(
'../.next',
REACT_LOADABLE_MANIFEST
))
const url = `http://localhost:${appPort}`
const resources = new Set()
const manifestKey = Object.keys(reactLoadableManifest).find((item) => {
return item
.replace(/\\/g, '/')
.endsWith('dynamic/css.js -> ../../components/dynamic-css/with-css')
})
// test dynamic chunk
reactLoadableManifest[manifestKey].files.forEach((f) => {
resources.add('/' + f)
})
// test main.js runtime etc
for (const item of buildManifest.pages['/']) {
resources.add('/' + item)
}
const cssStaticAssets = await recursiveReadDir(
join(__dirname, '..', '.next', 'static'),
/\.css$/
)
expect(cssStaticAssets.length).toBeGreaterThanOrEqual(1)
expect(cssStaticAssets[0]).toMatch(/[\\/]css[\\/]/)
const mediaStaticAssets = await recursiveReadDir(
join(__dirname, '..', '.next', 'static'),
/\.svg$/
)
expect(mediaStaticAssets.length).toBeGreaterThanOrEqual(1)
expect(mediaStaticAssets[0]).toMatch(/[\\/]media[\\/]/)
;[...cssStaticAssets, ...mediaStaticAssets].forEach((asset) => {
resources.add(`/static${asset.replace(/\\+/g, '/')}`)
})
const responses = await Promise.all(
[...resources].map((resource) =>
fetchViaHTTP(url, join('/_next', resource))
)
)
responses.forEach((res) => {
try {
expect(res.headers.get('Cache-Control')).toBe(
'public, max-age=31536000, immutable'
)
} catch (err) {
err.message = res.url + ' ' + err.message
throw err
}
})
})
it('should set correct Cache-Control header for static 404s', async () => {
// this is to fix where 404 headers are set to 'public, max-age=31536000, immutable'
const res = await fetchViaHTTP(
`http://localhost:${appPort}`,
`/_next//static/common/bad-static.js`
)
expect(res.status).toBe(404)
expect(res.headers.get('Cache-Control')).toBe(
'no-cache, no-store, max-age=0, must-revalidate'
)
})
it('should block special pages', async () => {
const urls = ['/_document', '/_app']
for (const url of urls) {
const html = await renderViaHTTP(appPort, url)
expect(html).toMatch(/404/)
}
})
it('should not contain customServer in NEXT_DATA', async () => {
const html = await renderViaHTTP(appPort, '/')
const $ = cheerio.load(html)
expect('customServer' in JSON.parse($('#__NEXT_DATA__').text())).toBe(
false
)
})
})
describe('API routes', () => {
it('should work with pages/api/index.js', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, `/api`)
const body = await res.text()
expect(body).toEqual('API index works')
})
it('should work with pages/api/hello.js', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, `/api/hello`)
const body = await res.text()
expect(body).toEqual('API hello works')
})
// Today, `__dirname` usage fails because Next.js moves the source file
// to .next/server/pages/api but it doesn't move the asset file.
// In the future, it would be nice to make `__dirname` work too.
it('does not work with pages/api/readfile-dirname.js', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, `/api/readfile-dirname`)
expect(res.status).toBe(500)
})
it('should work with pages/api/readfile-processcwd.js', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, `/api/readfile-processcwd`)
const body = await res.text()
expect(body).toBe('item')
})
it('should work with dynamic params and search string', async () => {
const url = `http://localhost:${appPort}`
const res = await fetchViaHTTP(url, `/api/post-1?val=1`)
const body = await res.json()
expect(body).toEqual({ val: '1', post: 'post-1' })
})
})
describe('With navigation', () => {
it('should navigate via client side', async () => {
const browser = await webdriver(appPort, '/')
const text = await browser
.elementByCss('a')
.click()
.waitForElementByCss('.about-page')
.elementByCss('div')
.text()
expect(text).toBe('About Page')
await browser.close()
})
it('should navigate to nested index via client side', async () => {
const browser = await webdriver(appPort, '/another')
await browser.eval('window.beforeNav = 1')
const text = await browser
.elementByCss('a')
.click()
.waitForElementByCss('.index-page')
.elementByCss('p')
.text()
expect(text).toBe('Hello World')
expect(await browser.eval('window.beforeNav')).toBe(1)
await browser.close()
})
it('should set title by routeChangeComplete event', async () => {
const browser = await webdriver(appPort, '/')
await browser.eval(function setup() {
window.next.router.events.on(
'routeChangeComplete',
function handler(url) {
window.routeChangeTitle = document.title
window.routeChangeUrl = url
}
)
window.next.router.push('/with-title')
})
await browser.waitForElementByCss('#with-title')
const title = await browser.eval(`window.routeChangeTitle`)
const url = await browser.eval(`window.routeChangeUrl`)
expect(title).toBe('hello from title')
expect(url).toBe('/with-title')
})
it('should reload page successfully (on bad link)', async () => {
const browser = await webdriver(appPort, '/to-nonexistent')
await browser.eval(function setup() {
window.__DATA_BE_GONE = 'true'
})
await browser.waitForElementByCss('#to-nonexistent-page')
await browser.click('#to-nonexistent-page')
await browser.waitForElementByCss('.about-page')
const oldData = await browser.eval(`window.__DATA_BE_GONE`)
expect(oldData).toBeFalsy()
})
it('should reload page successfully (on bad data fetch)', async () => {
const browser = await webdriver(appPort, '/to-shadowed-page')
await browser.eval(function setup() {
window.__DATA_BE_GONE = 'true'
})
await browser.waitForElementByCss('#to-shadowed-page').click()
await browser.waitForElementByCss('.about-page')
const oldData = await browser.eval(`window.__DATA_BE_GONE`)
expect(oldData).toBeFalsy()
})
})
it('should navigate to external site and back', async () => {
const browser = await webdriver(appPort, '/external-and-back')
const initialText = await browser.elementByCss('p').text()
expect(initialText).toBe('server')
await browser
.elementByCss('a')
.click()
.waitForElementByCss('input')
.back()
.waitForElementByCss('p')
await waitFor(1000)
const newText = await browser.elementByCss('p').text()
expect(newText).toBe('server')
})
it('should navigate to page with CSS and back', async () => {
const browser = await webdriver(appPort, '/css-and-back')
const initialText = await browser.elementByCss('p').text()
expect(initialText).toBe('server')
await browser
.elementByCss('a')
.click()
.waitForElementByCss('input')
.back()
.waitForElementByCss('p')
await waitFor(1000)
const newText = await browser.elementByCss('p').text()
expect(newText).toBe('client')
})
it('should navigate to external site and back (with query)', async () => {
const browser = await webdriver(appPort, '/external-and-back?hello=world')
const initialText = await browser.elementByCss('p').text()
expect(initialText).toBe('server')
await browser
.elementByCss('a')
.click()
.waitForElementByCss('input')
.back()
.waitForElementByCss('p')
await waitFor(1000)
const newText = await browser.elementByCss('p').text()
expect(newText).toBe('server')
})
it('should change query correctly', async () => {
const browser = await webdriver(appPort, '/query?id=0')
let id = await browser.elementByCss('#q0').text()
expect(id).toBe('0')
await browser.elementByCss('#first').click().waitForElementByCss('#q1')
id = await browser.elementByCss('#q1').text()
expect(id).toBe('1')
await browser.elementByCss('#second').click().waitForElementByCss('#q2')
id = await browser.elementByCss('#q2').text()
expect(id).toBe('2')
})
describe('Runtime errors', () => {
it('should render a server side error on the client side', async () => {
const browser = await webdriver(appPort, '/error-in-ssr-render')
await waitFor(2000)
const text = await browser.elementByCss('body').text()
// this makes sure we don't leak the actual error to the client side in production
expect(text).toMatch(/Internal Server Error\./)
const headingText = await browser.elementByCss('h1').text()
// This makes sure we render statusCode on the client side correctly
expect(headingText).toBe('500')
await browser.close()
})
it('should render a client side component error', async () => {
const browser = await webdriver(appPort, '/error-in-browser-render')
await waitFor(2000)
const text = await browser.elementByCss('body').text()
expect(text).toMatch(
/Application error: a client-side exception has occurred/
)
await browser.close()
})
it('should call getInitialProps on _error page during a client side component error', async () => {
const browser = await webdriver(
appPort,
'/error-in-browser-render-status-code'
)
await waitFor(2000)
const text = await browser.elementByCss('body').text()
expect(text).toMatch(/This page could not be found\./)
await browser.close()
})
})
describe('Misc', () => {
it('should handle already finished responses', async () => {
const html = await renderViaHTTP(appPort, '/finish-response')
expect(html).toBe('hi')
})
it('should allow to access /static/ and /_next/', async () => {
// This is a test case which prevent the following issue happening again.
// See: https://github.com/vercel/next.js/issues/2617
await renderViaHTTP(appPort, '/_next/')
await renderViaHTTP(appPort, '/static/')
const data = await renderViaHTTP(appPort, '/static/data/item.txt')
expect(data).toBe('item')
})
it('Should allow access to public files', async () => {
const data = await renderViaHTTP(appPort, '/data/data.txt')
const file = await renderViaHTTP(appPort, '/file')
const legacy = await renderViaHTTP(appPort, '/static/legacy.txt')
expect(data).toBe('data')
expect(file).toBe('test')
expect(legacy).toMatch(`new static folder`)
})
// TODO: do we want to normalize this for firefox? It seems in
// the latest version of firefox the window state is not reset
// when navigating back from a hard navigation. This might be
// a bug as other browsers do not behave this way.
if (browserName !== 'firefox') {
it('should reload the page on page script error', async () => {
const browser = await webdriver(appPort, '/counter')
const counter = await browser
.elementByCss('#increase')
.click()
.click()
.elementByCss('#counter')
.text()
expect(counter).toBe('Counter: 2')
// When we go to the 404 page, it'll do a hard reload.
// So, it's possible for the front proxy to load a page from another zone.
// Since the page is reloaded, when we go back to the counter page again,
// previous counter value should be gone.
const counterAfter404Page = await browser
.elementByCss('#no-such-page')
.click()
.waitForElementByCss('h1')
.back()
.waitForElementByCss('#counter-page')
.elementByCss('#counter')
.text()
expect(counterAfter404Page).toBe('Counter: 0')
await browser.close()
})
}
it('should have default runtime values when not defined', async () => {
const html = await renderViaHTTP(appPort, '/runtime-config')
expect(html).toMatch(/found public config/)
expect(html).toMatch(/found server config/)
})
it('should not have runtimeConfig in __NEXT_DATA__', async () => {
const html = await renderViaHTTP(appPort, '/runtime-config')
const $ = cheerio.load(html)
const script = $('#__NEXT_DATA__').html()
expect(script).not.toMatch(/runtimeConfig/)
})
it('should add autoExport for auto pre-rendered pages', async () => {
for (const page of ['/', '/about']) {
const html = await renderViaHTTP(appPort, page)
const $ = cheerio.load(html)
const data = JSON.parse($('#__NEXT_DATA__').html())
expect(data.autoExport).toBe(true)
}
})
it('should not add autoExport for non pre-rendered pages', async () => {
for (const page of ['/query']) {
const html = await renderViaHTTP(appPort, page)
const $ = cheerio.load(html)
const data = JSON.parse($('#__NEXT_DATA__').html())
expect(!!data.autoExport).toBe(false)
}
})
it('should add prefetch tags when Link prefetch prop is used', async () => {
const browser = await webdriver(appPort, '/prefetch')
if (browserName === 'internet explorer') {
// IntersectionObserver isn't present so we need to trigger manually
await waitFor(1000)
await browser.eval(`(function() {
window.next.router.prefetch('/')
window.next.router.prefetch('/process-env')
window.next.router.prefetch('/counter')
window.next.router.prefetch('/about')
})()`)
}
await waitFor(2000)
if (browserName === 'safari') {
const elements = await browser.elementsByCss('link[rel=preload]')
// optimized preloading uses defer instead of preloading and prefetches
// aren't generated client-side since safari does not support prefetch
expect(elements.length).toBe(0)
} else {
const elements = await browser.elementsByCss('link[rel=prefetch]')
expect(elements.length).toBe(4)