1 files changed, 58 insertions, 0 deletions
diff --git a/packages/integrations/vercel/test/isr.test.js b/packages/integrations/vercel/test/isr.test.js
new file mode 100644
index 000000000..fb957aa78
--- /dev/null
+++ b/packages/integrations/vercel/test/isr.test.js
@@ -0,0 +1,58 @@
+import assert from 'node:assert/strict';
+import { before, describe, it } from 'node:test';
+import { loadFixture } from './test-utils.js';
+
+describe('ISR', () => {
+	/** @type {import('./test-utils.js').Fixture} */
+	let fixture;
+
+	before(async () => {
+		fixture = await loadFixture({
+			root: './fixtures/isr/',
+		});
+		await fixture.build();
+	});
+
+	it('generates expected prerender config', async () => {
+		const vcConfig = JSON.parse(
+			await fixture.readFile('../.vercel/output/functions/_isr.prerender-config.json'),
+		);
+		assert.deepEqual(vcConfig, {
+			expiration: 120,
+			bypassToken: '1c9e601d-9943-4e7c-9575-005556d774a8',
+			allowQuery: ['x_astro_path'],
+			passQuery: true,
+		});
+	});
+
+	it('generates expected routes', async () => {
+		const deploymentConfig = JSON.parse(await fixture.readFile('../.vercel/output/config.json'));
+		// the first two are /_astro/*, and filesystem routes
+		assert.deepEqual(deploymentConfig.routes.slice(2), [
+			{
+				src: '^/two$',
+				dest: '_render',
+			},
+			{
+				src: '^/excluded/([^/]+?)$',
+				dest: '_render',
+			},
+			{
+				src: '^\\/_image$',
+				dest: '_render',
+			},
+			{
+				src: '^\\/excluded\\/([^/]+?)\\/?$',
+				dest: '/_isr?x_astro_path=$0',
+			},
+			{
+				src: '^\\/one\\/?$',
+				dest: '/_isr?x_astro_path=$0',
+			},
+			{
+				src: '^\\/two\\/?$',
+				dest: '/_isr?x_astro_path=$0',
+			},
+		]);
+	});
+});