1 files changed, 27 insertions, 0 deletions
diff --git a/packages/integrations/vercel/test/server-islands.test.js b/packages/integrations/vercel/test/server-islands.test.js
new file mode 100644
index 000000000..0306bb8b2
--- /dev/null
+++ b/packages/integrations/vercel/test/server-islands.test.js
@@ -0,0 +1,27 @@
+import assert from 'node:assert/strict';
+import { before, describe, it } from 'node:test';
+import { loadFixture } from './test-utils.js';
+
+describe('Server Islands', () => {
+	/** @type {import('./test-utils.js').Fixture} */
+	let fixture;
+
+	before(async () => {
+		fixture = await loadFixture({
+			root: './fixtures/server-islands/',
+		});
+		await fixture.build();
+	});
+
+	it('server islands route is in the config', async () => {
+		const config = JSON.parse(await fixture.readFile('../.vercel/output/config.json'));
+		let found = null;
+		for (let route of config.routes) {
+			if (route.src?.includes('_server-islands')) {
+				found = route;
+				break;
+			}
+		}
+		assert.notEqual(found, null, 'Default server islands route included');
+	});
+});