add test

packages/integrations/node/test/fixtures/locals/src/middleware.ts

@@ -0,0 +1,6 @@
+import { defineMiddleware } from 'astro:middleware';
+
+export const onRequest = defineMiddleware(({ url, locals }, next) => {
+    if (url.pathname === "/from-astro-middleware") locals.foo = "baz";
+    return next();
+})

packages/integrations/node/test/fixtures/locals/src/pages/api.js

@@ -1,6 +1,6 @@
 
-export async function post({ locals }) {
-	let out = { ...locals };
+export async function POST({ locals }) {
+	const out = { ...locals };
 
 	return new Response(JSON.stringify(out), {
 		headers: {

packages/integrations/node/test/fixtures/locals/src/pages/from-node-middleware.astro

@@ -0,0 +1,4 @@
+---
+const { foo } = Astro.locals;
+---
+<h1>{foo}</h1>

packages/integrations/node/test/locals.test.js

@@ -15,11 +15,10 @@ describe('API routes', () => {
 		await fixture.build();
 	});
 
-	it('Can render locals in page', async () => {
+	it('Can use locals added by node middleware', async () => {
 		const { handler } = await import('./fixtures/locals/dist/server/entry.mjs');
 		let { req, res, text } = createRequestAndResponse({
-			method: 'POST',
-			url: '/foo',
+			url: '/from-node-middleware',
 		});
 
 		let locals = { foo: 'bar' };
@@ -32,6 +31,21 @@ describe('API routes', () => {
 		expect(html).to.contain('<h1>bar</h1>');
 	});
 
+	it('Can use locals added by astro middleware', async () => {
+		const { handler } = await import('./fixtures/locals/dist/server/entry.mjs');
+		
+		const { req, res, text } = createRequestAndResponse({
+			url: '/from-astro-middleware',
+		});
+
+		handler(req, res, () => {});
+		req.send();
+
+		const html = await text();
+
+		expect(html).to.contain('<h1>baz</h1>');
+	});
+
 	it('Can access locals in API', async () => {
 		const { handler } = await import('./fixtures/locals/dist/server/entry.mjs');
 		let { req, res, done } = createRequestAndResponse({