test: add test case for next/navigation#redirect

tests/fixtures/simple/app/app-redirect/[slug]/page.js

@@ -0,0 +1,11 @@
+import { redirect } from 'next/navigation'
+
+const Page = async () => {
+ return redirect(`/app-redirect/dest`)
+}
+
+export const generateStaticParams = async () => {
+ return [{ slug: 'prerendered' }]
+}
+
+export default Page

tests/fixtures/simple/app/app-redirect/dest/page.js

@@ -0,0 +1,9 @@
+export default function Page() {
+ return (
+ <main>
+ <h1>Hello next/navigation#redirect target</h1>
+ </main>
+ )
+}
+
+export const dynamic = 'force-static'

tests/integration/simple-app.test.ts

@@ -108,6 +108,8 @@ test<FixtureTestContext>('Test that the simple next app is working', async (ctx)
  shouldHaveAppRouterNotFoundInPrerenderManifest() ? '/_not-found' : undefined,
  '/api/cached-permanent',
  '/api/cached-revalidate',
+ '/app-redirect/dest',
+ '/app-redirect/prerendered',
  '/config-redirect',
  '/config-redirect/dest',
  '/config-rewrite',
@@ -445,6 +447,31 @@ test.skipIf(hasDefaultTurbopackBuilds())<FixtureTestContext>(
  },
 )
 
+// below version check is not exact (not located exactly when, but Next.js had a bug for prerender pages that should redirect would not work correctly)
+// currently only know that 13.5.1 and 14.2.35 doesn't have correct response (either not a 307 or completely missing 'location' header), while 15.5.9 has 307 response with location header
+test.skipIf(nextVersionSatisfies('<15.0.0'))<FixtureTestContext>(
+ `app router page that uses next/navigation#redirect works when page is prerendered`,
+ async (ctx) => {
+ await createFixture('simple', ctx)
+ await runPlugin(ctx)
+
+ const response = await invokeFunction(ctx, { url: `/app-redirect/prerendered` })
+
+ expect(response.statusCode).toBe(307)
+ expect(response.headers['location']).toBe('/app-redirect/dest')
+ },
+)
+
+test<FixtureTestContext>(`app router page that uses next/navigation#redirect works when page is NOT prerendered`, async (ctx) => {
+ await createFixture('simple', ctx)
+ await runPlugin(ctx)
+
+ const response = await invokeFunction(ctx, { url: `/app-redirect/non-prerendered` })
+
+ expect(response.statusCode).toBe(307)
+ expect(response.headers['location']).toBe('/app-redirect/dest')
+})
+
 describe('next patching', async () => {
  const { cp: originalCp, appendFile } = (await vi.importActual(
  'node:fs/promises',