Add pagesDir to Jest transformer

[timneutkens]

Fixes #35469

Adds pagesDir which is required for the Relay transform.

Added a test case based on https://github.com/hanford/relay-swc-jest.

Bug

• Related issues linked using fixes #number
• Integration tests added
• Errors have helpful link attached, see contributing.md

Feature

• Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
• Related issues linked using fixes #number
• Integration tests added
• Documentation added
• Telemetry added. In case of a feature if it's used or not.
• Errors have helpful link attached, see contributing.md

Documentation / Examples

• Make sure the linting passes by running yarn lint

[ijjk]

Failing test suites

Commit: 43766c0

yarn testheadless test/production/jest/relay/app/tests/entry.test.tsx

Expand output

● Test suite failed to run

Cannot find module 'react-relay' from 'production/jest/relay/app/tests/entry.test.tsx'

  1 | import { render as renderFn, waitFor } from '@testing-library/react'
> 2 | import { RelayEnvironmentProvider } from 'react-relay'
    |                                                       ^
  3 | import { createMockEnvironment, MockPayloadGenerator } from 'relay-test-utils'
  4 |
  5 | import Page from '../pages'

  at Resolver.resolveModule (../node_modules/jest-resolve/build/resolver.js:311:11)
  at Object.<anonymous> (production/jest/relay/app/tests/entry.test.tsx:2:55)

Read more about building and testing Next.js in contributing.md.

[ijjk]

Stats from current PR

Default Build (Decrease detected ✓)

General Overall increase ⚠️

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
buildDuration	15.9s	16.1s	⚠️ +102ms
buildDurationCached	6.2s	6.2s	⚠️ +31ms
nodeModulesSize	463 MB	463 MB	⚠️ +468 B

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
/ failed reqs	0	0	✓
/ total time (seconds)	3.732	3.775	⚠️ +0.04
/ avg req/sec	669.86	662.21	⚠️ -7.65
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.378	1.389	⚠️ +0.01
/error-in-render avg req/sec	1813.87	1799.82	⚠️ -14.05

Client Bundles (main, webpack)

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
925.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42 kB	42 kB	✓
main-HASH.js gzip	28.7 kB	28.7 kB	✓
webpack-HASH.js gzip	1.44 kB	1.44 kB	✓
Overall change	72.3 kB	72.3 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
_app-HASH.js gzip	1.36 kB	1.36 kB	✓
_error-HASH.js gzip	193 B	193 B	✓
amp-HASH.js gzip	308 B	308 B	✓
css-HASH.js gzip	327 B	327 B	✓
dynamic-HASH.js gzip	3.08 kB	3.08 kB	✓
head-HASH.js gzip	359 B	359 B	✓
hooks-HASH.js gzip	920 B	920 B	✓
image-HASH.js gzip	5.71 kB	5.71 kB	✓
index-HASH.js gzip	263 B	263 B	✓
link-HASH.js gzip	2.64 kB	2.64 kB	✓
routerDirect..HASH.js gzip	320 B	320 B	✓
script-HASH.js gzip	391 B	391 B	✓
withRouter-HASH.js gzip	318 B	318 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	16.3 kB	16.3 kB	✓

Client Build Manifests

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
index.html gzip	533 B	533 B	✓
link.html gzip	547 B	547 B	✓
withRouter.html gzip	529 B	529 B	✓
Overall change	1.61 kB	1.61 kB	✓

---

Default Build with SWC (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
buildDuration	17.8s	17.8s	-43ms
buildDurationCached	6.3s	6.2s	-144ms
nodeModulesSize	463 MB	463 MB	⚠️ +468 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
/ failed reqs	0	0	✓
/ total time (seconds)	3.748	3.774	⚠️ +0.03
/ avg req/sec	666.98	662.49	⚠️ -4.49
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.423	1.362	-0.06
/error-in-render avg req/sec	1756.27	1835.73	+79.46

Client Bundles (main, webpack)

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
925.HASH.js gzip	178 B	178 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	29.1 kB	29.1 kB	✓
webpack-HASH.js gzip	1.45 kB	1.45 kB	✓
Overall change	73 kB	73 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
_app-HASH.js gzip	1.35 kB	1.35 kB	✓
_error-HASH.js gzip	179 B	179 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	324 B	324 B	✓
dynamic-HASH.js gzip	3.08 kB	3.08 kB	✓
head-HASH.js gzip	357 B	357 B	✓
hooks-HASH.js gzip	921 B	921 B	✓
image-HASH.js gzip	5.76 kB	5.76 kB	✓
index-HASH.js gzip	261 B	261 B	✓
link-HASH.js gzip	2.76 kB	2.76 kB	✓
routerDirect..HASH.js gzip	322 B	322 B	✓
script-HASH.js gzip	392 B	392 B	✓
withRouter-HASH.js gzip	317 B	317 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	16.5 kB	16.5 kB	✓

Client Build Manifests

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
_buildManifest.js gzip	458 B	458 B	✓
Overall change	458 B	458 B	✓

Rendered Page Sizes

	vercel/next.js canary	timneutkens/next.js fix/35469	Change
index.html gzip	527 B	527 B	✓
link.html gzip	541 B	541 B	✓
withRouter.html gzip	524 B	524 B	✓
Overall change	1.59 kB	1.59 kB	✓

Commit: bb8c457