1 files changed, 90 insertions, 0 deletions
diff --git a/packages/integrations/node/test/node-middleware.test.js b/packages/integrations/node/test/node-middleware.test.js
new file mode 100644
index 000000000..8bc0b2777
--- /dev/null
+++ b/packages/integrations/node/test/node-middleware.test.js
@@ -0,0 +1,90 @@
+import * as assert from 'node:assert/strict';
+import { after, before, describe, it } from 'node:test';
+import * as cheerio from 'cheerio';
+import express from 'express';
+import nodejs from '../dist/index.js';
+import { loadFixture, waitServerListen } from './test-utils.js';
+
+/**
+ * @typedef {import('../../../astro/test/test-utils').Fixture} Fixture
+ */
+
+describe('behavior from middleware, standalone', () => {
+	/** @type {import('./test-utils').Fixture} */
+	let fixture;
+	let server;
+
+	before(async () => {
+		process.env.PRERENDER = false;
+		fixture = await loadFixture({
+			root: './fixtures/node-middleware/',
+			output: 'server',
+			adapter: nodejs({ mode: 'standalone' }),
+		});
+		await fixture.build();
+		const { startServer } = await fixture.loadAdapterEntryModule();
+		const res = startServer();
+		server = res.server;
+		await waitServerListen(server.server);
+	});
+
+	after(async () => {
+		await server.stop();
+		await fixture.clean();
+		// biome-ignore lint/performance/noDelete: <explanation>
+		delete process.env.PRERENDER;
+	});
+
+	describe('404', async () => {
+		it('when mode is standalone', async () => {
+			const res = await fetch(`http://${server.host}:${server.port}/error-page`);
+
+			assert.equal(res.status, 404);
+
+			const html = await res.text();
+			const $ = cheerio.load(html);
+
+			const body = $('body');
+			assert.equal(body.text().includes('Page does not exist'), true);
+		});
+	});
+});
+
+describe('behavior from middleware, middleware', () => {
+	/** @type {import('./test-utils').Fixture} */
+	let fixture;
+	let server;
+
+	before(async () => {
+		process.env.PRERENDER = false;
+		fixture = await loadFixture({
+			root: './fixtures/node-middleware/',
+			output: 'server',
+			adapter: nodejs({ mode: 'middleware' }),
+		});
+		await fixture.build();
+		const { handler } = await fixture.loadAdapterEntryModule();
+		const app = express();
+		app.use(handler);
+		server = app.listen(8889);
+	});
+
+	after(async () => {
+		server.close();
+		await fixture.clean();
+		// biome-ignore lint/performance/noDelete: <explanation>
+		delete process.env.PRERENDER;
+	});
+
+	it('when mode is middleware', async () => {
+		const res = await fetch('http://localhost:8889/ssr');
+
+		assert.equal(res.status, 200);
+
+		const html = await res.text();
+		const $ = cheerio.load(html);
+
+		const body = $('body');
+		assert.equal(body.text().includes("Here's a random number"), true);
+	});
+});