mirror of
https://github.com/hanzoai/next.js.git
synced 2026-09-24 17:00:51 +00:00
1287f9a027
### What?
Changes Turbopack's error overlay to show specific SWC diagnostic
messages as the error title instead of generic messages like "Parsing
ecmascript source code failed" or "Ecmascript file had an error".
### Why?
Previously, all SWC parse/analysis errors in Turbopack showed a generic
title (e.g. "Parsing ecmascript source code failed") in the redbox
header, with the actual specific error message buried in the description
below the code frame. This made it harder for developers to quickly
understand what went wrong.
**Before:**
```
Parsing ecmascript source code failed
> 1 | export default () => <div/
| ^
Expected '>', got '<eof>'
```
**After:**
```
Expected '>', got '<eof>'
> 1 | export default () => <div/
| ^
Parsing ecmascript source code failed
```
### How?
**Core change** in
`turbopack/crates/turbopack-swc-utils/src/emitter.rs`:
When the `IssueEmitter` has a `self.title` set (the generic title like
"Parsing ecmascript source code failed"), the SWC diagnostic message is
now used as the issue title, and the generic title is demoted to the
description. When `self.title` is not set, the existing behavior is
preserved (first line of message becomes title, rest becomes
description).
**Test updates** across ~15 test files:
Updated all `isTurbopack` branches in test expectations to reflect the
swapped title/description. Only Turbopack-specific branches were
modified; webpack and rspack expectations are unchanged.
**New test suite** (`test/development/app-dir/ecmascript-error-title/`):
Dedicated tests verifying that both syntax errors (e.g. `Expected '>',
got '<eof>'`) and analysis errors (e.g. `the name 'Table' is defined
multiple times`) show the specific SWC message as the redbox title.
**Turbopack snapshot updates:**
4 snapshot files renamed to reflect new titles (e.g. `Parsing ecmascript
source code failed-*.txt` → `Expression expected-*.txt`).
---------
Co-authored-by: Claude <[email protected]>
644 lines
20 KiB
TypeScript
644 lines
20 KiB
TypeScript
import { waitForNoRedbox, check, getDistDir, retry } from 'next-test-utils'
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import stripAnsi from 'strip-ansi'
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import { nextTestSetup } from 'e2e-utils'
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describe('middleware - development errors', () => {
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const { next, isTurbopack, isRspack } = nextTestSetup({
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files: __dirname,
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patchFileDelay: 500,
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})
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beforeEach(async () => {
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await next.stop()
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})
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describe('when middleware throws synchronously', () => {
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beforeEach(async () => {
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await next.patchFile(
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'middleware.js',
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`
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export default function () {
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throw new Error('boom')
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}`
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)
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await next.start()
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})
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it('logs the error correctly', async () => {
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await next.fetch('/')
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await retry(() => {
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expect(stripAnsi(next.cliOutput)).toContain('boom')
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})
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expect(stripAnsi(next.cliOutput)).toContain(
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isTurbopack
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? '\n⨯ Error: boom' +
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// TODO(veil): Sourcemap to original name i.e. "default"
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'\n at __TURBOPACK__default__export__ (middleware.js:3:15)' +
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'\n 1 |'
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: isRspack
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? '\n⨯ Error: boom' +
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'\n at __rspack_default_export (middleware.js:3:15)' +
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'\n 1 |'
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: '\n⨯ Error: boom' +
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'\n at default (middleware.js:3:15)' +
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'\n 1 |'
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)
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expect(stripAnsi(next.cliOutput)).toContain(
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'' +
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"\n> 3 | throw new Error('boom')" +
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'\n | ^'
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)
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})
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it('renders the error correctly and recovers', async () => {
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const browser = await next.browser('/')
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if (isTurbopack) {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "boom",
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"environmentLabel": null,
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"label": "Runtime Error",
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"source": "middleware.js (3:15) @ {default export}
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> 3 | throw new Error('boom')
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| ^",
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"stack": [
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"{default export} middleware.js (3:15)",
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],
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}
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`)
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} else if (isRspack) {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "boom",
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"environmentLabel": null,
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"label": "Runtime Error",
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"source": "middleware.js (3:15) @ __rspack_default_export
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> 3 | throw new Error('boom')
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| ^",
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"stack": [
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"__rspack_default_export middleware.js (3:15)",
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],
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}
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`)
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} else {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "boom",
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"environmentLabel": null,
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"label": "Runtime Error",
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"source": "middleware.js (3:15) @ default
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> 3 | throw new Error('boom')
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| ^",
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"stack": [
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"default middleware.js (3:15)",
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],
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}
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`)
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}
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await next.patchFile('middleware.js', `export default function () {}`)
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await waitForNoRedbox(browser)
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})
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})
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describe('when middleware contains an unhandled rejection', () => {
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beforeEach(async () => {
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await next.patchFile(
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'middleware.js',
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`
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import { NextResponse } from 'next/server'
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async function throwError() {
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throw new Error('async boom!')
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}
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export default function () {
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throwError()
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return NextResponse.next()
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}`
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)
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await next.start()
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})
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it('logs the error correctly', async () => {
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await next.fetch('/')
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await retry(() => {
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expect(stripAnsi(next.cliOutput)).toContain(
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'unhandledRejection: Error: async boom!'
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)
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})
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expect(stripAnsi(next.cliOutput)).toContain(
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isTurbopack
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? '⨯ unhandledRejection: Error: async boom!' +
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'\n at throwError (middleware.js:4:15)' +
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// TODO(veil): Sourcemap to original name i.e. "default"
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'\n at __TURBOPACK__default__export__ (middleware.js:7:9)' +
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"\n 2 | import { NextResponse } from 'next/server'"
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: isRspack
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? '\n⨯ unhandledRejection: Error: async boom!' +
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'\n at throwError (middleware.js:4:15)' +
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'\n at __rspack_default_export (middleware.js:7:9)' +
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"\n 2 | import { NextResponse } from 'next/server'"
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: '\n⨯ unhandledRejection: Error: async boom!' +
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'\n at throwError (middleware.js:4:15)' +
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'\n at default (middleware.js:7:9)' +
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"\n 2 | import { NextResponse } from 'next/server'"
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)
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expect(stripAnsi(next.cliOutput)).toContain(
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'' +
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"\n> 4 | throw new Error('async boom!')" +
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'\n | ^'
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)
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})
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it('does not render the error', async () => {
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const browser = await next.browser('/')
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await waitForNoRedbox(browser)
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expect(await browser.elementByCss('#page-title')).toBeTruthy()
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})
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})
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describe('when running invalid dynamic code with eval', () => {
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beforeEach(async () => {
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await next.patchFile(
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'middleware.js',
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`
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import { NextResponse } from 'next/server'
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export default function () {
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eval('test')
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return NextResponse.next()
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}`
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)
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await next.start()
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})
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it('logs the error correctly', async () => {
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await next.fetch('/')
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await retry(() => {
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expect(stripAnsi(next.cliOutput)).toContain('Dynamic Code Evaluation')
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})
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if (isTurbopack) {
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// Locally, prefixes the "test is not defined".
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// In CI, it prefixes "Dynamic Code Evaluation".
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expect(stripAnsi(next.cliOutput)).toContain(
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// TODO(veil): Should be sourcemapped
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'\n at __TURBOPACK__default__export__ (.next/'
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)
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}
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expect(stripAnsi(next.cliOutput)).toContain(
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isTurbopack
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? '\n⨯ Error [ReferenceError]: test is not defined' +
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'\n at eval (middleware.js:4:9)' +
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'\n at <unknown> (middleware.js:4:9)' +
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// TODO(veil): Should be sourcemapped
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'\n at __TURBOPACK__default__export__ ('
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: '\n⨯ Error [ReferenceError]: test is not defined' +
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// TODO(veil): Redundant and not clickable
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'\n at eval (file://webpack-internal:///(middleware)/./middleware.js)' +
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'\n at eval (middleware.js:4:9)' +
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'\n at default (middleware.js:4:9)' +
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"\n 2 | import { NextResponse } from 'next/server'"
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)
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expect(stripAnsi(next.cliOutput)).toContain(
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isTurbopack
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? "\n⚠ DynamicCodeEvaluationWarning: Dynamic Code Evaluation (e. g. 'eval', 'new Function') not allowed in Edge Runtime" +
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'\nLearn More: https://nextjs.org/docs/messages/edge-dynamic-code-evaluation' +
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// TODO(veil): Should be sourcemapped
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'\n at __TURBOPACK__default__export__ ('
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: "\n⚠ DynamicCodeEvaluationWarning: Dynamic Code Evaluation (e. g. 'eval', 'new Function') not allowed in Edge Runtime" +
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'\nLearn More: https://nextjs.org/docs/messages/edge-dynamic-code-evaluation' +
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'\n at default (middleware.js:4:9)' +
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"\n 2 | import { NextResponse } from 'next/server'"
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)
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})
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it('renders the error correctly and recovers', async () => {
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const browser = await next.browser('/')
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if (isTurbopack) {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "test is not defined",
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"environmentLabel": null,
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"label": "Runtime ReferenceError",
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"source": "middleware.js (4:9) @ eval
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> 4 | eval('test')
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| ^",
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"stack": [
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"eval middleware.js (4:9)",
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"<unknown> middleware.js (4:9)",
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"{default export} middleware.js (3:22)",
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],
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}
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`)
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} else if (isRspack) {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "test is not defined",
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"environmentLabel": null,
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"label": "Runtime ReferenceError",
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"source": "middleware.js (4:9) @ __rspack_default_export
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> 4 | eval('test')
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| ^",
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"stack": [
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"<FIXME-file-protocol>",
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"__rspack_default_export middleware.js (4:9)",
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],
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}
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`)
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} else {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "test is not defined",
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"environmentLabel": null,
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"label": "Runtime ReferenceError",
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"source": "middleware.js (4:9) @ eval
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> 4 | eval('test')
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| ^",
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"stack": [
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"<FIXME-file-protocol>",
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"eval middleware.js (4:9)",
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"default middleware.js (4:9)",
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],
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}
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`)
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}
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const lengthOfLogs = next.cliOutput.length
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await next.patchFile('middleware.js', `export default function () {}`)
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retry(() => {
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expect(next.cliOutput.slice(lengthOfLogs)).toContain('GET / 200')
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}, 10000) // middleware rebuild takes a while in CI
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await waitForNoRedbox(browser)
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})
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})
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describe('when throwing while loading the module', () => {
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beforeEach(async () => {
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await next.patchFile(
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'middleware.js',
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`
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import { NextResponse } from 'next/server'
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throw new Error('booooom!')
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export default function () {
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return NextResponse.next()
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}`
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)
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await next.start()
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})
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it('logs the error correctly', async () => {
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await next.fetch('/')
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await retry(() => {
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expect(stripAnsi(next.cliOutput)).toContain(`Error: booooom!`)
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})
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expect(stripAnsi(next.cliOutput)).toContain(
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isTurbopack
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? '\n⨯ Error: booooom!' +
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// TODO(veil): Should be sourcemapped
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'\n at module evaluation (middleware.js:3:13)'
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: isRspack
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? '\n⨯ Error: booooom!' +
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`\n at <unknown> (${getDistDir()}/server/edge-runtime-webpack.js:35)` +
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'\n at eval (middleware.js:3:13)' +
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`\n at (middleware)/./middleware.js (${getDistDir()}/server/middleware.js:26:1)` +
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'\n at __webpack_require__ '
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: '\n⨯ Error: booooom!' +
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// TODO: Should be anonymous method without a method name
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'\n at <unknown> (middleware.js:3)' +
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// TODO: Should be ignore-listed
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'\n at eval (middleware.js:3:13)' +
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`\n at (middleware)/./middleware.js (${getDistDir()}/server/middleware.js:18:1)` +
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'\n at __webpack_require__ '
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)
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})
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it('renders the error correctly and recovers', async () => {
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const browser = await next.browser('/')
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if (isTurbopack) {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "booooom!",
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"environmentLabel": null,
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"label": "Runtime Error",
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"source": "middleware.js (3:13) @ module evaluation
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> 3 | throw new Error('booooom!')
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| ^",
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"stack": [
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"module evaluation middleware.js (3:13)",
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],
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}
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`)
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} else if (isRspack) {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "booooom!",
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"environmentLabel": null,
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"label": "Runtime Error",
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"source": "middleware.js (3:13) @ eval
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> 3 | throw new Error('booooom!')
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| ^",
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"stack": [
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"<FIXME-next-dist-dir>",
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"eval middleware.js (3:13)",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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],
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}
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`)
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} else {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E394",
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"description": "booooom!",
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"environmentLabel": null,
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"label": "Runtime Error",
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"source": "middleware.js (3:13) @ eval
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> 3 | throw new Error('booooom!')
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| ^",
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"stack": [
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"<unknown> middleware.js (3)",
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"eval middleware.js (3:13)",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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"<FIXME-next-dist-dir>",
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],
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}
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`)
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}
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await next.patchFile('middleware.js', `export default function () {}`)
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await waitForNoRedbox(browser)
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})
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})
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describe('when there is an unhandled rejection while loading the module', () => {
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beforeEach(async () => {
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await next.patchFile(
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'middleware.js',
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`
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import { NextResponse } from 'next/server'
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(async function(){
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throw new Error('you shall see me')
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})()
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export default function () {
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return NextResponse.next()
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}`
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)
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await next.start()
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})
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it('logs the error correctly', async () => {
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await next.fetch('/')
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await check(
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() => stripAnsi(next.cliOutput),
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new RegExp(`unhandledRejection: Error: you shall see me`, 'm')
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)
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// expect(output).not.toContain(
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// 'webpack-internal:///(middleware)/./middleware.js'
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// )
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})
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it('does not render the error', async () => {
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const browser = await next.browser('/')
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await waitForNoRedbox(browser)
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expect(await browser.elementByCss('#page-title')).toBeTruthy()
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})
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})
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|
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describe('when there is an unhandled rejection while loading a dependency', () => {
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beforeEach(async () => {
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await next.patchFile(
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'middleware.js',
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`
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import { NextResponse } from 'next/server'
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import './lib/unhandled'
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|
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export default function () {
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return NextResponse.next()
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||
}`
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)
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|
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await next.start()
|
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})
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|
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it('logs the error correctly', async () => {
|
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await next.fetch('/')
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const output = stripAnsi(next.cliOutput)
|
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await check(
|
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() => stripAnsi(next.cliOutput),
|
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new RegExp(
|
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` uncaughtException: Error: This file asynchronously fails while loading`,
|
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'm'
|
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)
|
||
)
|
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expect(output).not.toContain(
|
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'webpack-internal:///(middleware)/./middleware.js'
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)
|
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})
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|
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it('does not render the error', async () => {
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const browser = await next.browser('/')
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await waitForNoRedbox(browser)
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expect(await browser.elementByCss('#page-title')).toBeTruthy()
|
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})
|
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})
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|
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describe('when there is a compilation error from boot', () => {
|
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beforeEach(async () => {
|
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await next.patchFile('middleware.js', `export default function () }`)
|
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|
||
await next.start()
|
||
})
|
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|
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it('logs the error correctly', async () => {
|
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await next.fetch('/')
|
||
await check(async () => {
|
||
expect(next.cliOutput).toContain(`Expected '{', got '}'`)
|
||
expect(
|
||
next.cliOutput.split(`Expected '{', got '}'`).length
|
||
).toBeGreaterThanOrEqual(2)
|
||
|
||
return 'success'
|
||
}, 'success')
|
||
})
|
||
|
||
it('renders the error correctly and recovers', async () => {
|
||
const browser = await next.browser('/')
|
||
|
||
if (isTurbopack) {
|
||
await expect(browser).toDisplayRedbox(`
|
||
{
|
||
"description": "Expected '{', got '}'",
|
||
"environmentLabel": null,
|
||
"label": "Build Error",
|
||
"source": "./middleware.js (1:28)
|
||
Expected '{', got '}'
|
||
> 1 | export default function () }
|
||
| ^",
|
||
"stack": [],
|
||
}
|
||
`)
|
||
} else if (isRspack) {
|
||
await expect(browser).toDisplayRedbox(`
|
||
{
|
||
"description": " ╰─▶ × Error: x Expected '{', got '}'",
|
||
"environmentLabel": null,
|
||
"label": "Build Error",
|
||
"source": "./middleware.js
|
||
╰─▶ × Error: x Expected '{', got '}'
|
||
│ ,----
|
||
│ 1 | export default function () }
|
||
│ : ^
|
||
│ \`----
|
||
│
|
||
│
|
||
│ Caused by:
|
||
│ Syntax Error",
|
||
"stack": [],
|
||
}
|
||
`)
|
||
} else {
|
||
await expect(browser).toDisplayRedbox(`
|
||
{
|
||
"description": " x Expected '{', got '}'",
|
||
"environmentLabel": null,
|
||
"label": "Build Error",
|
||
"source": "./middleware.js
|
||
Error: x Expected '{', got '}'
|
||
,----
|
||
1 | export default function () }
|
||
: ^
|
||
\`----
|
||
Caused by:
|
||
Syntax Error",
|
||
"stack": [],
|
||
}
|
||
`)
|
||
}
|
||
|
||
await next.patchFile('middleware.js', `export default function () {}`)
|
||
|
||
await waitForNoRedbox(browser)
|
||
expect(await browser.elementByCss('#page-title')).toBeTruthy()
|
||
})
|
||
})
|
||
|
||
describe('when there is a compilation error after boot', () => {
|
||
beforeEach(async () => {
|
||
await next.patchFile('middleware.js', `export default function () {}`)
|
||
|
||
await next.start()
|
||
})
|
||
|
||
it('logs the error correctly', async () => {
|
||
await next.patchFile('middleware.js', `export default function () }`)
|
||
await next.fetch('/')
|
||
|
||
await check(() => {
|
||
expect(next.cliOutput).toContain(`Expected '{', got '}'`)
|
||
expect(
|
||
next.cliOutput.split(`Expected '{', got '}'`).length
|
||
).toBeGreaterThanOrEqual(2)
|
||
return 'success'
|
||
}, 'success')
|
||
})
|
||
|
||
it('renders the error correctly and recovers', async () => {
|
||
const browser = await next.browser('/')
|
||
|
||
await waitForNoRedbox(browser)
|
||
|
||
await next.patchFile('middleware.js', `export default function () }`)
|
||
|
||
if (isTurbopack) {
|
||
await expect(browser).toDisplayRedbox(`
|
||
{
|
||
"description": "Expected '{', got '}'",
|
||
"environmentLabel": null,
|
||
"label": "Build Error",
|
||
"source": "./middleware.js (1:28)
|
||
Expected '{', got '}'
|
||
> 1 | export default function () }
|
||
| ^",
|
||
"stack": [],
|
||
}
|
||
`)
|
||
} else if (isRspack) {
|
||
await expect(browser).toDisplayRedbox(`
|
||
{
|
||
"description": " ╰─▶ × Error: x Expected '{', got '}'",
|
||
"environmentLabel": null,
|
||
"label": "Build Error",
|
||
"source": "./middleware.js
|
||
╰─▶ × Error: x Expected '{', got '}'
|
||
│ ,----
|
||
│ 1 | export default function () }
|
||
│ : ^
|
||
│ \`----
|
||
│
|
||
│
|
||
│ Caused by:
|
||
│ Syntax Error",
|
||
"stack": [],
|
||
}
|
||
`)
|
||
} else {
|
||
await expect(browser).toDisplayRedbox(`
|
||
{
|
||
"description": " x Expected '{', got '}'",
|
||
"environmentLabel": null,
|
||
"label": "Build Error",
|
||
"source": "./middleware.js
|
||
Error: x Expected '{', got '}'
|
||
,----
|
||
1 | export default function () }
|
||
: ^
|
||
\`----
|
||
Caused by:
|
||
Syntax Error",
|
||
"stack": [],
|
||
}
|
||
`)
|
||
}
|
||
|
||
await next.patchFile('middleware.js', `export default function () {}`)
|
||
|
||
await waitForNoRedbox(browser)
|
||
expect(await browser.elementByCss('#page-title')).toBeTruthy()
|
||
})
|
||
})
|
||
})
|