Add typechecking test for all entrypoints

test/production/typescript-basic/typechecking.test.ts

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+import * as childProcess from 'child_process'
+import path from 'path'
+import { FileRef, nextTestSetup } from 'e2e-utils'
+
+describe('typechecking', () => {
+ const { next } = nextTestSetup({
+ files: new FileRef(path.join(__dirname, 'typechecking')),
+ skipStart: true,
+ })
+
+ it('should typecheck', async () => {
+ const { status, stdout } = childProcess.spawnSync(
+ 'pnpm',
+ ['tsc', '--project', 'tsconfig.json', '--skipLibCheck', 'false'],
+ {
+ cwd: next.testDir,
+ encoding: 'utf-8',
+ }
+ )
+
+ if (status !== 0) {
+ // Piped output is incomplete and the format barely useable.
+ // Printing it as a last resort in case it's not reproducible locally.
+ // Best to NEXT_TEST_SKIP_CLEANUP=1 this test and run the command in the app localy.
+ throw new Error('Typecheck failed: \n' + stdout)
+ }
+ })
+})

test/production/typescript-basic/typechecking/.gitignore

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+!next-env.d.ts

test/production/typescript-basic/typechecking/index.ts

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+import 'next/amp'
+import 'next/app'
+// FIXME
+// import 'next/babel';
+import 'next/cache'
+import 'next/client'
+import 'next/config'
+import 'next/constants'
+import 'next/document'
+import 'next/dynamic'
+import 'next/error'
+import 'next/head'
+import 'next/headers'
+import 'next/image'
+import 'next'
+// TODO @jest/types is an undeclared peer dependecy
+// import 'next/jest';
+import 'next/link'
+import 'next/navigation'
+import 'next/og'
+import 'next/router'
+import 'next/script'
+import 'next/server'
+// FIXME
+// import 'next/web-vitals';

test/production/typescript-basic/typechecking/next-env.d.ts

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+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/basic-features/typescript for more information.

test/production/typescript-basic/typechecking/next.config.js

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+/**
+ * @type {import('next').NextConfig}
+ */
+const nextConfig = {}
+
+module.exports = nextConfig

test/production/typescript-basic/typechecking/tsconfig.json

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+{
+ "compilerOptions": {
+ "lib": ["dom", "dom.iterable", "esnext"],
+ "allowJs": true,
+ "skipLibCheck": false,
+ "strict": true,
+ "noEmit": true,
+ "esModuleInterop": true,
+ "module": "esnext",
+ "moduleResolution": "bundler",
+ "resolveJsonModule": true,
+ "isolatedModules": true,
+ "jsx": "preserve",
+ "incremental": true,
+ "plugins": [
+ {
+ "name": "next"
+ }
+ ],
+ "paths": {
+ "@/*": ["./*"]
+ }
+ },
+ "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+ "exclude": ["node_modules"]
+}