1 files changed, 47 insertions, 0 deletions
diff --git a/packages/integrations/vercel/test/speed-insights.test.js b/packages/integrations/vercel/test/speed-insights.test.js
new file mode 100644
index 000000000..28ca84cd2
--- /dev/null
+++ b/packages/integrations/vercel/test/speed-insights.test.js
@@ -0,0 +1,47 @@
+import assert from 'node:assert/strict';
+import { before, describe, it } from 'node:test';
+import { loadFixture } from './test-utils.js';
+
+describe('Vercel Speed Insights', () => {
+	describe('output: server', () => {
+		/** @type {import('./test-utils.js').Fixture} */
+		let fixture;
+
+		before(async () => {
+			fixture = await loadFixture({
+				root: './fixtures/with-speed-insights-enabled/output-as-server/',
+				output: 'server',
+			});
+			await fixture.build();
+		});
+
+		it('ensures that Vercel Speed Insights is present in the bundle', async () => {
+			const [page] = await fixture.readdir('../.vercel/output/static/_astro');
+
+			const bundle = await fixture.readFile(`../.vercel/output/static/_astro/${page}`);
+
+			assert.match(bundle, /VERCEL_ANALYTICS_ID/);
+		});
+	});
+
+	describe('output: static', () => {
+		/** @type {import('./test-utils.js').Fixture} */
+		let fixture;
+
+		before(async () => {
+			fixture = await loadFixture({
+				root: './fixtures/with-speed-insights-enabled/output-as-static/',
+				output: 'static',
+			});
+			await fixture.build();
+		});
+
+		it('ensures that Vercel Speed Insights is present in the bundle', async () => {
+			const [page] = await fixture.readdir('../.vercel/output/static/_astro');
+
+			const bundle = await fixture.readFile(`../.vercel/output/static/_astro/${page}`);
+
+			assert.match(bundle, /VERCEL_ANALYTICS_ID/);
+		});
+	});
+});