test dev-server output

Author: chargome

dev-packages/e2e-tests/test-applications/nextjs-15/.gitignore

@@ -44,3 +44,5 @@ next-env.d.ts
 
 test-results
 event-dumps
+
+.tmp_dev_server_logs

dev-packages/e2e-tests/test-applications/nextjs-15/app/page.tsx

@@ -0,0 +1,3 @@
+export default function Page() {
+  return <p>Next 15 test app</p>;
+}

dev-packages/e2e-tests/test-applications/nextjs-15/package.json

@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "build": "next build > .tmp_build_stdout 2> .tmp_build_stderr || (cat .tmp_build_stdout && cat .tmp_build_stderr && exit 1)",
-    "clean": "npx rimraf node_modules pnpm-lock.yaml",
+    "clean": "npx rimraf node_modules pnpm-lock.yaml .tmp_dev_server_logs",
     "test:prod": "TEST_ENV=production playwright test",
     "test:dev": "TEST_ENV=development playwright test",
     "test:dev-turbo": "TEST_ENV=dev-turbopack playwright test",

dev-packages/e2e-tests/test-applications/nextjs-15/playwright.config.mjs

@@ -7,11 +7,11 @@ if (!testEnv) {
 
 const getStartCommand = () => {
   if (testEnv === 'dev-turbopack') {
-    return 'pnpm next dev -p 3030 --turbopack';
+    return 'pnpm next dev -p 3030 --turbopack 2>&1 | tee .tmp_dev_server_logs';
   }
 
   if (testEnv === 'development') {
-    return 'pnpm next dev -p 3030';
+    return 'pnpm next dev -p 3030 2>&1 | tee .tmp_dev_server_logs';
   }
 
   if (testEnv === 'production') {

dev-packages/e2e-tests/test-applications/nextjs-15/tests/async-params.test.ts

@@ -0,0 +1,16 @@
+import { expect, test } from '@playwright/test';
+import fs from 'fs';
+
+test.only('should not print warning for async params', async ({ page }) => {
+  test.skip(
+    process.env.TEST_ENV !== 'development' && process.env.TEST_ENV !== 'dev-turbopack',
+    'should be skipped for non-dev mode',
+  );
+  await page.goto('/');
+
+  // If the server exits with code 1, the test will fail (see instrumentation.ts)
+  const devStdout = fs.readFileSync('.tmp_dev_server_logs', 'utf-8');
+  expect(devStdout).not.toContain('`params` should be awaited before using its properties.');
+
+  await expect(page.getByText('Next 15 test app')).toBeVisible();
+});