test(sveltekit-cloudflare): add test of prerendered page

test(sveltekit-cloudflare): actually test the prerendered page

Author: SG60

dev-packages/e2e-tests/test-applications/sveltekit-cloudflare-pages/src/routes/+page.svelte

@@ -5,4 +5,6 @@
 <h1>Welcome to SvelteKit</h1>
 <p>Visit <a href="https://svelte.dev/docs/kit">svelte.dev/docs/kit</a> to read the documentation</p>
 
+<a href="/prerender-test">prerender test</a>
+
 <p>{data.message}</p>

dev-packages/e2e-tests/test-applications/sveltekit-cloudflare-pages/src/routes/prerender-test/+page.server.ts

@@ -0,0 +1,9 @@
+import type { PageServerLoad } from './$types';
+
+export const prerender = true;
+
+export const load: PageServerLoad = async function load() {
+  return {
+    message: 'From server load function.',
+  };
+};

dev-packages/e2e-tests/test-applications/sveltekit-cloudflare-pages/src/routes/prerender-test/+page.svelte

@@ -0,0 +1,6 @@
+<script lang="ts">
+  let { data } = $props();
+</script>
+
+<h1>{data.message}</h1>
+<p>Visit <a href="https://svelte.dev/docs/kit">svelte.dev/docs/kit</a> to read the documentation</p>

dev-packages/e2e-tests/test-applications/sveltekit-cloudflare-pages/tests/demo.test.ts

@@ -4,3 +4,8 @@ test('home page has expected h1', async ({ page }) => {
 	await page.goto('/');
 	await expect(page.locator('h1')).toBeVisible();
 });
+
+test('prerendered page has expected h1', async ({ page }) => {
+	await page.goto('/prerender-test');
+	await expect(page.locator('h1')).toHaveText('From server load function.');
+});