Adding unit tests

Author: JeremyVoisin

src/routes/storage-test/+page.svelte

@@ -15,7 +15,7 @@
             {#each list.items as item}
                 <li>
                     <DownloadLink ref={item} let:link let:ref>
-                        <a href="{link}" download>{ref?.name}</a>
+                        <a data-testid="download-link" href="{link}" download>{ref?.name}</a>
                     </DownloadLink>
                 </li>
             {/each}

tests/storage.test.ts

@@ -0,0 +1,10 @@
+import { expect, test } from '@playwright/test';
+
+
+test('Renders download links', async ({ page }) => {
+	await page.goto('/storage-test');
+	await page.waitForSelector('[data-testid="download-link"]');
+	const linksCount = await page.getByTestId('download-link').count()
+	expect( linksCount ).toBeGreaterThan(0);
+});
+