Add test case

crates/next-core/src/router.rs

@@ -220,7 +220,7 @@ pub async fn route(
     let configs = config_assets(context, project_path, next_config.page_extensions());
     let router_asset = route_executor(context, project_path, configs);
 
-    // TODO this is a hack to get this files watched.
+    // TODO this is a hack to get these files watched.
     let next_config = watch_files_hack(context, project_path);
 
     let request = serde_json::value::to_value(&*request.await?)?;

crates/next-dev-tests/tests/integration/next/middleware/basic/input/middleware.ts

@@ -0,0 +1,11 @@
+// middleware.ts
+import { NextResponse } from "next/server";
+import type { NextRequest } from "next/server";
+
+export function middleware(request: NextRequest) {
+  return NextResponse.redirect(new URL("/about-2", request.url));
+}
+
+export const config = {
+  matcher: "/about/:path*",
+};

crates/next-dev-tests/tests/integration/next/middleware/basic/input/pages/index.tsx

@@ -0,0 +1,17 @@
+import { useEffect } from "react";
+
+export default function Home() {
+  useEffect(() => {
+    // Only run on client
+    import("@turbo/pack-test-harness").then(runTests);
+  });
+
+  return null;
+}
+
+function runTests() {
+  it("should allow redirects to other paths", async () => {
+    const res = await fetch("/about/hello");
+    expect(res.url.endsWith("/about-2"));
+  });
+}