1 files changed, 81 insertions, 0 deletions
diff --git a/packages/integrations/node/test/locals.test.js b/packages/integrations/node/test/locals.test.js
new file mode 100644
index 000000000..b8e3ed40f
--- /dev/null
+++ b/packages/integrations/node/test/locals.test.js
@@ -0,0 +1,81 @@
+import * as assert from 'node:assert/strict';
+import { before, describe, it } from 'node:test';
+import nodejs from '../dist/index.js';
+import { createRequestAndResponse, loadFixture } from './test-utils.js';
+
+describe('API routes', () => {
+	/** @type {import('./test-utils').Fixture} */
+	let fixture;
+
+	before(async () => {
+		fixture = await loadFixture({
+			root: './fixtures/locals/',
+			output: 'server',
+			adapter: nodejs({ mode: 'middleware' }),
+		});
+		await fixture.build();
+	});
+
+	it('Can use locals added by node middleware', async () => {
+		const { handler } = await import('./fixtures/locals/dist/server/entry.mjs');
+		const { req, res, text } = createRequestAndResponse({
+			url: '/from-node-middleware',
+		});
+
+		const locals = { foo: 'bar' };
+
+		handler(req, res, () => {}, locals);
+		req.send();
+
+		const html = await text();
+
+		assert.equal(html.includes('<h1>bar</h1>'), true);
+	});
+
+	it('Throws an error when provided non-objects as locals', async () => {
+		const { handler } = await import('./fixtures/locals/dist/server/entry.mjs');
+		const { req, res, done } = createRequestAndResponse({
+			url: '/from-node-middleware',
+		});
+
+		handler(req, res, undefined, 'locals');
+		req.send();
+
+		await done;
+		assert.equal(res.statusCode, 500);
+	});
+
+	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();
+
+		assert.equal(html.includes('<h1>baz</h1>'), true);
+	});
+
+	it('Can access locals in API', async () => {
+		const { handler } = await import('./fixtures/locals/dist/server/entry.mjs');
+		const { req, res, done } = createRequestAndResponse({
+			method: 'POST',
+			url: '/api',
+		});
+
+		const locals = { foo: 'bar' };
+
+		handler(req, res, () => {}, locals);
+		req.send();
+
+		const [buffer] = await done;
+
+		const json = JSON.parse(buffer.toString('utf-8'));
+
+		assert.equal(json.foo, 'bar');
+	});
+});