Add Replay integration for dev e2e tests (#40955)

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## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a 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 a helpful link attached, see `contributing.md`

## Documentation / Examples

- [ ] Make sure the linting passes by running `pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)

@ijjk moving this here.

Co-authored-by: JJ Kasper <[email protected]>

.github/workflows/build_test_deploy.yml

@@ -405,9 +405,27 @@ jobs:
         timeout-minutes: 5
         if: ${{needs.build.outputs.docsChange == 'nope'}}
 
-      - run: NEXT_TEST_MODE=dev node run-tests.js --type e2e --timings -g ${{ matrix.group }}/3
+      - run: npx @replayio/playwright install chromium
+        if: ${{needs.build.outputs.docsChange == 'nope'}}
+
+      - run: node run-tests.js --type e2e --timings -g ${{ matrix.group }}/3
         name: Run test/e2e (dev)
         if: ${{needs.build.outputs.docsChange == 'nope'}}
+        env:
+          RECORD_REPLAY_METADATA_TEST_RUN_TITLE: testDevE2E / Group ${{ matrix.group }} / Node ${{ matrix.node }}
+          RECORD_ALL_CONTENT: 1
+          RECORD_REPLAY: 1
+          NEXT_TEST_MODE: dev
+          RECORD_REPLAY_TEST_METRICS: 1
+          RECORD_REPLAY_WEBHOOK_URL: ${{ secrets.RECORD_REPLAY_WEBHOOK_URL }}
+          # DEBUG: pw:browser*
+
+      - uses: replayio/[email protected]
+        if: always()
+        with:
+          api-key: rwk_iKsQnEoQwKd31WAJxgN9ARPFuAlyXlVrDH4uhYpRnti
+          public: true
+          filter: ${{ 'function($v) { $v.metadata.test.result = "failed" }' }}
 
       - name: Upload test trace
         if: always()

jest.replay.config.js

@@ -0,0 +1,18 @@
+const nextJest = require('next/jest')
+
+const createJestConfig = nextJest()
+
+// Any custom config you want to pass to Jest
+const customJestConfig = {
+  testMatch: ['**/*.test.js', '**/*.test.ts', '**/*.test.tsx'],
+  setupFilesAfterEnv: ['<rootDir>/jest-setup-after-env.ts'],
+  verbose: true,
+  rootDir: 'test',
+  modulePaths: ['<rootDir>/lib'],
+  transformIgnorePatterns: ['/next[/\\\\]dist/', '/\\.next/'],
+  testTimeout: 60000,
+  testRunner: '@replayio/jest/runner',
+}
+
+// createJestConfig is exported in this way to ensure that next/jest can load the Next.js config which is async
+module.exports = createJestConfig(customJestConfig)

package.json

@@ -69,6 +69,8 @@
     "@next/polyfill-module": "workspace:*",
     "@next/polyfill-nomodule": "workspace:*",
     "@next/swc": "workspace:*",
+    "@replayio/jest": "27.5.1-alpha.4",
+    "@replayio/playwright": "0.2.26",
     "@svgr/webpack": "5.5.0",
     "@swc/cli": "0.1.55",
     "@swc/core": "1.2.203",

run-tests.js

@@ -238,13 +238,19 @@ async function main() {
     `jest${process.platform === 'win32' ? '.CMD' : ''}`
   )
 
-  const runTest = (test = '', isFinalRun) =>
+  const runTest = (test = '', isFinalRun, isRetry) =>
     new Promise((resolve, reject) => {
       const start = new Date().getTime()
       let outputChunks = []
+
+      const shouldRecordTestWithReplay = process.env.RECORD_REPLAY && isRetry
+
       const child = spawn(
         jestPath,
         [
+          ...(shouldRecordTestWithReplay
+            ? [`--config=jest.replay.config.js`]
+            : []),
           '--runInBand',
           '--forceExit',
           '--verbose',
@@ -257,6 +263,7 @@ async function main() {
           stdio: ['ignore', 'pipe', 'pipe'],
           env: {
             ...process.env,
+            RECORD_REPLAY: shouldRecordTestWithReplay,
             // run tests in headless mode by default
             HEADLESS: 'true',
             TRACE_PLAYWRIGHT: 'true',
@@ -336,7 +343,7 @@ async function main() {
       for (let i = 0; i < numRetries + 1; i++) {
         try {
           console.log(`Starting ${test} retry ${i}/${numRetries}`)
-          const time = await runTest(test, i === numRetries)
+          const time = await runTest(test, i === numRetries, i > 0)
           timings.push({
             file: test,
             time,

test/lib/browsers/playwright.ts

@@ -62,16 +62,23 @@ export class Playwright extends BrowserInterface {
       }
     }
 
-    if (browserName === 'safari') {
-      browser = await webkit.launch({ headless })
-    } else if (browserName === 'firefox') {
-      browser = await firefox.launch({ headless })
-    } else {
-      browser = await chromium.launch({ headless, devtools: !headless })
-    }
+    browser = await this.launchBrowser(browserName, { headless })
     context = await browser.newContext({ locale, ...device })
   }
 
+  async launchBrowser(browserName: string, launchOptions: Record<string, any>) {
+    if (browserName === 'safari') {
+      return await webkit.launch(launchOptions)
+    } else if (browserName === 'firefox') {
+      return await firefox.launch(launchOptions)
+    } else {
+      return await chromium.launch({
+        devtools: !launchOptions.headless,
+        ...launchOptions,
+      })
+    }
+  }
+
   async get(url: string): Promise<void> {
     return page.goto(url) as any
   }

test/lib/browsers/replay.ts

@@ -0,0 +1,16 @@
+import { getExecutablePath } from '@replayio/playwright'
+import { Playwright } from './playwright'
+export { quit } from './playwright'
+
+export class Replay extends Playwright {
+  async launchBrowser(browserName: string, launchOptions: Record<string, any>) {
+    const browser: any = browserName === 'chrome' ? 'chromium' : browserName
+    return super.launchBrowser(browserName, {
+      ...launchOptions,
+      executablePath: getExecutablePath(browser) || undefined,
+      env: {
+        ...process.env,
+      },
+    })
+  }
+}

test/lib/next-webdriver.ts

@@ -84,6 +84,10 @@ export default async function webdriver(
     const { Selenium, quit } = await import('./browsers/selenium')
     CurrentInterface = Selenium
     browserQuit = quit
+  } else if (process.env.RECORD_REPLAY === 'true') {
+    const { Replay, quit } = await require('./browsers/replay')
+    CurrentInterface = Replay
+    browserQuit = quit
   } else {
     const { Playwright, quit } = await import('./browsers/playwright')
     CurrentInterface = Playwright