Files
Tim NeutkensandGitHub 8141dcf12e Convert test/integration to isolated tests (#93247)
### What?

Converts every test under `test/integration/` to an isolated test
running through `nextTestSetup` (under `test/e2e/`, `test/production/`,
`test/development/`, or `test/unit/`), then deletes `test/integration/`
along with the legacy CI orchestration that was specific to it.

- `test/integration/` removed entirely (~327 test suites)
- New isolated suites added across the existing folders:
  - `test/e2e/` — 175
  - `test/production/` — 130
  - `test/development/` — 43
  - `test/unit/` — 1
- `.github/workflows/build_and_test.yml` and `run-tests.js` no longer
have any `integration` branches
- `nextTestSetup` gained a `baseUrl` option on `next.browser()` so a
small number of tests that drive their own proxy/static-export server
can keep using `next.browser(...)` instead of importing `next-webdriver`
directly

### Why?

`test/integration/` predated `nextTestSetup` and ran tests directly
against the source checkout via custom helpers (`launchApp`,
`nextBuild`, `nextStart`, `runNextCommand`, `webdriver`, `fetchViaHTTP`,
…). Each suite hand-rolled its own dev/start/build orchestration,
fixture mutation, and process management.

The isolated test model used by the rest of the repo gives each suite an
isolated working directory containing a packed `next.tgz` install, a
uniform `next.start()` / `next.build()` / `next.fetch()` /
`next.browser()` API, and the same lifecycle for dev, start, and deploy
modes — so a single set of assertions covers all three. Deploy-mode
skips and per-feature gates are expressed declaratively
(`skipDeployment`, `disableAutoSkewProtection`, `if (skipped) return`)
instead of branching on `process.env`.

Removing `test/integration/` lets us:

- Delete the bespoke orchestration code in the CI workflow and
`run-tests.js`
- Run every converted suite consistently in dev, start, and deploy modes
(where applicable)
- Reproduce every test locally with the same `pnpm
test-{dev,start}-{turbo,webpack}` commands; no separate `integration`
path
- Open the door to running `test/production` against deployments in the
future (the converted suites already declare `skipDeployment` so they
can be flipped on)

### How?

Mechanical conversion per suite, with targeted clean-ups:

1. **Per-suite conversion.** Each
`test/integration/<name>/test/index.test.{js,ts}` was rewritten into a
single `<name>.test.ts` under the right folder based on what the
original exercised:
   - `launchApp` / dev-only assertions → `test/development/`
- `nextBuild` + `nextStart` / start-only assertions → `test/production/`
   - Both → `test/e2e/`
- The one pure jsdom render check (`link-without-router`) → `test/unit/`

2. **API mapping.** Custom helpers were replaced by `nextTestSetup`
equivalents: `launchApp` → `next.start()`, `nextBuild` → `next.build()`,
`runNextCommand` → `next.runCommand`, `fetchViaHTTP` → `next.fetch`,
`webdriver(...)` → `next.browser(...)`. Fixture mutations switched from
raw `fs.writeFile`/`fs.rename` to `next.patchFile` (with the 3-arg
`runWithTempContent` callback when the change has a defined scope) and
`next.deleteFile`.

3. **Deploy-mode handling.** Suites that can't run in deploy mode (use
`patchFile` / `next.build()` / depend on local CLI output) declare
`skipDeployment: true` and early-return on the `skipped` boolean. Suites
where Vercel's edge mutates URLs (`&dpl=`, immutable assets) declare
`disableAutoSkewProtection: true`.

4. **`next.browser({ baseUrl })`.** A handful of tests
(`prerender-export`, `cdn-cache-busting`, `preload-viewport`, both
`react-virtualized` suites) need to drive a separate server (a
static-export server or an `http-proxy` instance) rather than the
Next.js process. Instead of importing `next-webdriver` directly, those
tests now pass `{ baseUrl: <port|url> }` to `next.browser()`. For the
proxy cases, the proxy was moved into `server.js` inside the fixture and
`http-proxy` declared via the `dependencies` option of `nextTestSetup`,
so the test runs with a fully isolated dependency graph.

5. **CI clean-up.** With `test/integration` gone, the `test
integration*` jobs and `integration-tests-manifest`-related logic in
`.github/workflows/build_and_test.yml` were removed, and `run-tests.js`
no longer has the `integration` test-folder branch.

6. **Validation.** The PR was iterated against multiple full CI runs;
the remaining failures on the latest run are pre-existing flakes
(segment-cache 60s `act` timeouts in turbopack-prod) or transient
infrastructure issues unrelated to the conversion.
2026-05-11 13:55:47 +02:00

341 lines
10 KiB
TypeScript

import { nextTestSetup } from 'e2e-utils'
import { join } from 'path'
import fs from 'fs'
describe('Build Output', () => {
describe('Basic Application Output (default config)', () => {
const { next } = nextTestSetup({
files: join(__dirname, 'fixtures', 'basic-app'),
skipStart: true,
})
let stdout: string
beforeAll(async () => {
const result = await next.build()
stdout = result.cliOutput
})
it('should not include internal pages', () => {
expect(stdout).toMatch(/\//)
expect(stdout).not.toContain(' /_document')
expect(stdout).not.toContain(' /_app')
expect(stdout).not.toContain(' /_error')
expect(stdout).not.toContain('<buildId>')
expect(stdout).toContain('○ /')
})
// TODO: change format of this test to be more reliable
it.skip('should not deviate from snapshot', () => {
console.log(stdout)
if (process.env.NEXT_PRIVATE_SKIP_SIZE_TESTS) {
return
}
const parsePageSize = (page: string) =>
stdout.match(
new RegExp(` ${page} .*?((?:\\d|\\.){1,} (?:\\w{1,})) `)
)![1]
const parsePageFirstLoad = (page: string) =>
stdout.match(
new RegExp(
` ${page} .*?(?:(?:\\d|\\.){1,}) .*? ((?:\\d|\\.){1,} (?:\\w{1,}))`
)
)![1]
const parseSharedSize = (sharedPartName: string) => {
const matches = stdout.match(
new RegExp(`${sharedPartName} .*? ((?:\\d|\\.){1,} (?:\\w{1,}))`)
)
if (!matches) {
throw new Error(`Could not match ${sharedPartName}`)
}
return matches[1]
}
const indexSize = parsePageSize('/')
const indexFirstLoad = parsePageFirstLoad('/')
const err404Size = parsePageSize('/404')
const err404FirstLoad = parsePageFirstLoad('/404')
const sharedByAll = parseSharedSize('shared by all')
const _appSize = parseSharedSize('_app-.*?\\.js')
const webpackSize = parseSharedSize('webpack-.*?\\.js')
const mainSize = parseSharedSize('main-.*?\\.js')
const frameworkSize = parseSharedSize('framework-.*?\\.js')
for (const size of [
indexSize,
indexFirstLoad,
err404Size,
err404FirstLoad,
sharedByAll,
_appSize,
webpackSize,
mainSize,
frameworkSize,
]) {
expect(parseFloat(size)).toBeGreaterThan(0)
}
expect(indexSize.endsWith('B')).toBe(true)
expect(indexFirstLoad.endsWith('kB')).toBe(true)
expect(err404Size.endsWith('B')).toBe(true)
expect(err404FirstLoad.endsWith('kB')).toBe(true)
expect(sharedByAll.endsWith('kB')).toBe(true)
expect(_appSize.endsWith('kB') || _appSize.endsWith(' B')).toBe(true)
expect(webpackSize.endsWith('kB') || webpackSize.endsWith(' B')).toBe(
true
)
expect(mainSize.endsWith('kB')).toBe(true)
expect(frameworkSize.endsWith('kB')).toBe(true)
})
it('should print duration when rendering or get static props takes long', () => {
const matches = stdout.match(
/ \/slow-static\/.+\/.+(?: \(\d+ ms\))?| \[\+\d+ more paths\]/g
)
for (const check of [
expect.stringMatching(
/\/\[propsDuration\]\/\[renderDuration\] \(\d+ ms\)/
),
expect.stringMatching(/\/2000\/10 \(\d+ ms\)$/),
expect.stringMatching(/\/10\/1000 \(\d+ ms\)$/),
expect.stringMatching(/\/300\/10 \(\d+ ms\)$/),
' [+2 more paths]',
]) {
expect(matches).toContainEqual(check)
}
})
it('should not emit extracted comments', () => {
const nextDir = join(next.testDir, '.next')
const allFiles: string[] = []
function walk(dir: string) {
for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
const full = join(dir, entry.name)
if (entry.isDirectory()) walk(full)
else allFiles.push(full)
}
}
walk(nextDir)
const txtOrLicenseFiles = allFiles.filter((f) =>
/\.txt|\.LICENSE\./.test(f)
)
expect(txtOrLicenseFiles).toEqual([])
})
})
describe('Basic Application Output (gzipSize: false)', () => {
const { next } = nextTestSetup({
files: join(__dirname, 'fixtures', 'basic-app'),
skipStart: true,
nextConfig: {
experimental: {
gzipSize: false,
},
},
})
let stdout: string
beforeAll(async () => {
const result = await next.build()
stdout = result.cliOutput
})
it('should not include internal pages', () => {
expect(stdout).toMatch(/\//)
expect(stdout).not.toContain(' /_document')
expect(stdout).not.toContain(' /_app')
expect(stdout).not.toContain(' /_error')
expect(stdout).not.toContain('<buildId>')
expect(stdout).toContain('○ /')
})
// TODO: change format of this test to be more reliable
it.skip('should not deviate from snapshot', () => {
console.log(stdout)
if (process.env.NEXT_PRIVATE_SKIP_SIZE_TESTS) {
return
}
const parsePageSize = (page: string) =>
stdout.match(
new RegExp(` ${page} .*?((?:\\d|\\.){1,} (?:\\w{1,})) `)
)![1]
const parsePageFirstLoad = (page: string) =>
stdout.match(
new RegExp(
` ${page} .*?(?:(?:\\d|\\.){1,}) .*? ((?:\\d|\\.){1,} (?:\\w{1,}))`
)
)![1]
const parseSharedSize = (sharedPartName: string) => {
const matches = stdout.match(
new RegExp(`${sharedPartName} .*? ((?:\\d|\\.){1,} (?:\\w{1,}))`)
)
if (!matches) {
throw new Error(`Could not match ${sharedPartName}`)
}
return matches[1]
}
const indexSize = parsePageSize('/')
const indexFirstLoad = parsePageFirstLoad('/')
const err404Size = parsePageSize('/404')
const err404FirstLoad = parsePageFirstLoad('/404')
const sharedByAll = parseSharedSize('shared by all')
const _appSize = parseSharedSize('_app-.*?\\.js')
const webpackSize = parseSharedSize('webpack-.*?\\.js')
const mainSize = parseSharedSize('main-.*?\\.js')
const frameworkSize = parseSharedSize('framework-.*?\\.js')
for (const size of [
indexSize,
indexFirstLoad,
err404Size,
err404FirstLoad,
sharedByAll,
_appSize,
webpackSize,
mainSize,
frameworkSize,
]) {
expect(parseFloat(size)).toBeGreaterThan(0)
}
expect(indexSize.endsWith('B')).toBe(true)
expect(indexFirstLoad.endsWith('kB')).toBe(true)
expect(err404Size.endsWith('B')).toBe(true)
expect(err404FirstLoad.endsWith('kB')).toBe(true)
expect(sharedByAll.endsWith('kB')).toBe(true)
expect(_appSize.endsWith('kB') || _appSize.endsWith(' B')).toBe(true)
expect(webpackSize.endsWith('kB') || webpackSize.endsWith(' B')).toBe(
true
)
expect(mainSize.endsWith('kB')).toBe(true)
expect(frameworkSize.endsWith('kB')).toBe(true)
})
it('should print duration when rendering or get static props takes long', () => {
const matches = stdout.match(
/ \/slow-static\/.+\/.+(?: \(\d+ ms\))?| \[\+\d+ more paths\]/g
)
for (const check of [
expect.stringMatching(
/\/\[propsDuration\]\/\[renderDuration\] \(\d+ ms\)/
),
expect.stringMatching(/\/2000\/10 \(\d+ ms\)$/),
expect.stringMatching(/\/10\/1000 \(\d+ ms\)$/),
expect.stringMatching(/\/300\/10 \(\d+ ms\)$/),
' [+2 more paths]',
]) {
expect(matches).toContainEqual(check)
}
})
it('should not emit extracted comments', () => {
const nextDir = join(next.testDir, '.next')
const allFiles: string[] = []
function walk(dir: string) {
for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
const full = join(dir, entry.name)
if (entry.isDirectory()) walk(full)
else allFiles.push(full)
}
}
walk(nextDir)
const txtOrLicenseFiles = allFiles.filter((f) =>
/\.txt|\.LICENSE\./.test(f)
)
expect(txtOrLicenseFiles).toEqual([])
})
})
describe('Custom App Output', () => {
const { next } = nextTestSetup({
files: join(__dirname, 'fixtures', 'with-app'),
skipStart: true,
})
it('should not include custom error', async () => {
const { cliOutput: stdout } = await next.build()
expect(stdout).toMatch(/\//)
expect(stdout).toMatch(/\/_app/)
expect(stdout).not.toContain(' /_document')
expect(stdout).not.toContain(' /_error')
expect(stdout).not.toContain('<buildId>')
expect(stdout).toContain(' /_app')
expect(stdout).toContain('○ /')
})
})
describe('Custom Error Output', () => {
const { next } = nextTestSetup({
files: join(__dirname, 'fixtures', 'with-error'),
skipStart: true,
})
it('should not include custom app', async () => {
const { cliOutput: stdout } = await next.build()
expect(stdout).toMatch(/\//)
expect(stdout).toMatch(/ƒ \/404/)
expect(stdout).not.toContain(' /_document')
expect(stdout).not.toContain(' /_app')
expect(stdout).not.toContain('<buildId>')
expect(stdout).not.toContain(' /_error')
expect(stdout).toContain('○ /')
})
})
describe('Custom Static Error Output', () => {
const { next } = nextTestSetup({
files: join(__dirname, 'fixtures', 'with-error-static'),
skipStart: true,
})
it('should not specify /404 as lambda when static', async () => {
const { cliOutput: stdout } = await next.build()
expect(stdout).toContain('○ /404')
expect(stdout).not.toContain('ƒ /_error')
expect(stdout).not.toContain('<buildId>')
})
})
describe('With Parallel Routes', () => {
const { next } = nextTestSetup({
files: join(__dirname, 'fixtures', 'with-parallel-routes'),
skipStart: true,
})
it('should not have duplicate paths that resolve to the same route', async () => {
const { cliOutput: stdout } = await next.build()
expect(stdout.match(/○ \/root-page/g)!.length).toBe(1)
})
})
})