2 files changed, 56 insertions, 0 deletions
diff --git a/packages/astro/test/fixtures/ssr-prerender/src/pages/not-prerendered.astro b/packages/astro/test/fixtures/ssr-prerender/src/pages/not-prerendered.astro
new file mode 100644
index 000000000..5b24ffaf9
--- /dev/null
+++ b/packages/astro/test/fixtures/ssr-prerender/src/pages/not-prerendered.astro
@@ -0,0 +1,8 @@
+<html>
+    <head>
+        <title>Not prerendered</title>
+    </head>
+	<body>
+		<h1 id="greeting">Hello world!</h1>
+	</body>
+</html>
diff --git a/packages/astro/test/ssr-prerender-integrations.test.js b/packages/astro/test/ssr-prerender-integrations.test.js
new file mode 100644
index 000000000..52a3ca421
--- /dev/null
+++ b/packages/astro/test/ssr-prerender-integrations.test.js
@@ -0,0 +1,48 @@
+import { expect } from 'chai';
+import { loadFixture } from './test-utils.js';
+import testAdapter from './test-adapter.js';
+
+describe('Integrations can hook into the prerendering decision', () => {
+	/** @type {import('./test-utils').Fixture} */
+	let fixture;
+
+	const testIntegration = {
+		name: 'test prerendering integration',
+		hooks: {
+			['astro:build:setup']({ pages, target }) {
+				if (target !== 'client') return;
+				// this page has `export const prerender = true`
+				pages.get('src/pages/static.astro').route.prerender = false
+				
+				// this page does not
+				pages.get('src/pages/not-prerendered.astro').route.prerender = true
+			}
+		}
+	}
+
+	before(async () => {
+		fixture = await loadFixture({
+			root: './fixtures/ssr-prerender/',
+			output: 'server',
+			integrations: [testIntegration],
+			adapter: testAdapter(),
+		});
+		await fixture.build();
+	});
+	
+	it('An integration can override the prerender flag', async () => {
+		// test adapter only hosts dynamic routes
+		// /static is expected to become dynamic
+		const app = await fixture.loadTestAdapterApp();
+		const request = new Request('http://example.com/static');
+		const response = await app.render(request);
+		expect(response.status).to.equal(200);
+	});
+
+	it('An integration can turn a normal page to a prerendered one', async () => {
+		const app = await fixture.loadTestAdapterApp();
+		const request = new Request('http://example.com/not-prerendered');
+		const response = await app.render(request);
+		expect(response.status).to.equal(404);
+	});
+});