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

63 lines
4.3 KiB
TypeScript

import { nextTestSetup } from 'e2e-utils'
import { join } from 'path'
describe('Browserslist: Old', () => {
const { next, isTurbopack } = nextTestSetup({
files: join(__dirname, 'fixtures', 'browsers-old'),
})
it(`should've emitted a single CSS file`, async () => {
const $ = await next.render$('/')
const cssSheet = $('link[rel="stylesheet"]')
expect(cssSheet.length).toBe(1)
const stylesheetUrl = cssSheet.attr('href')!
const cssContent = await next.fetch(stylesheetUrl).then((res) => res.text())
const cssContentWithoutSourceMap = cssContent
.replace(/\/\*.*?\*\/\n?/g, '')
.trim()
if (isTurbopack) {
expect(cssContentWithoutSourceMap).toMatchInlineSnapshot(
`"a{all:initial}@media (-webkit-min-device-pixel-ratio:2),(min-resolution:2dppx){.image{background-image:url(data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)}}"`
)
} else {
expect(cssContentWithoutSourceMap).toMatchInlineSnapshot(
`"a{-webkit-animation:none 0s ease 0s 1 normal none running;animation:none 0s ease 0s 1 normal none running;-webkit-backface-visibility:visible;backface-visibility:visible;background:transparent none repeat 0 0/auto auto padding-box border-box scroll;border:none;border-collapse:separate;-webkit-border-image:none;border-image:none;-webkit-border-radius:0;border-radius:0;border-spacing:0;bottom:auto;-webkit-box-shadow:none;box-shadow:none;-webkit-box-sizing:content-box;box-sizing:content-box;caption-side:top;clear:none;clip:auto;color:#000;-webkit-columns:auto;-webkit-column-count:auto;-webkit-column-fill:balance;column-fill:balance;-webkit-column-gap:normal;column-gap:normal;-webkit-column-rule:medium none currentColor;column-rule:medium none currentColor;-webkit-column-span:1;column-span:1;-webkit-column-width:auto;columns:auto;content:normal;counter-increment:none;counter-reset:none;cursor:auto;direction:ltr;display:inline;empty-cells:show;float:none;font-family:serif;font-size:medium;font-style:normal;font-variant:normal;font-weight:400;font-stretch:normal;line-height:normal;height:auto;-ms-hyphens:none;hyphens:none;left:auto;letter-spacing:normal;list-style:disc none outside;margin:0;max-height:none;max-width:none;min-height:0;min-width:0;opacity:1;orphans:2;outline:medium none invert;overflow:visible;overflow-x:visible;overflow-y:visible;padding:0;page-break-after:auto;page-break-before:auto;page-break-inside:auto;-webkit-perspective:none;perspective:none;-webkit-perspective-origin:50% 50%;perspective-origin:50% 50%;position:static;right:auto;tab-size:8;table-layout:auto;text-align:left;text-align-last:auto;text-decoration:none;text-indent:0;text-shadow:none;text-transform:none;top:auto;-webkit-transform:none;transform:none;-webkit-transform-origin:50% 50% 0;transform-origin:50% 50% 0;-webkit-transform-style:flat;transform-style:flat;-webkit-transition:none 0s ease 0s;transition:none 0s ease 0s;unicode-bidi:normal;vertical-align:baseline;visibility:visible;white-space:normal;widows:2;width:auto;word-spacing:normal;z-index:auto;all:initial}@media (-webkit-min-device-pixel-ratio:2),(min-resolution:2dppx){.image{background-image:url(data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)}}"`
)
}
})
})
describe('Browserslist: New', () => {
const { next, isTurbopack } = nextTestSetup({
files: join(__dirname, 'fixtures', 'browsers-new'),
})
it(`should've emitted a single CSS file`, async () => {
const $ = await next.render$('/')
const cssSheet = $('link[rel="stylesheet"]')
expect(cssSheet.length).toBe(1)
const stylesheetUrl = cssSheet.attr('href')!
const cssContent = await next.fetch(stylesheetUrl).then((res) => res.text())
const cssContentWithoutSourceMap = cssContent
.replace(/\/\*.*?\*\/\n?/g, '')
.trim()
if (isTurbopack) {
expect(cssContentWithoutSourceMap).toMatchInlineSnapshot(
`"a{all:initial}@media (min-resolution:2x){.image{background-image:url(data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)}}"`
)
} else {
expect(cssContentWithoutSourceMap).toMatchInlineSnapshot(
`"a{all:initial}@media (min-resolution:2dppx){.image{background-image:url(data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)}}"`
)
}
})
})