test: verify that fast typers will still get the search results

We just fixed a bug where the search results URL wasn't yet generated,
and as a result the `https://git-scm.com/undefined` URL was used
when a user typed a search term really fast and hit Enter.

Let's make sure that this bug never regresses.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

tests/git-scm.spec.js

@@ -105,9 +105,17 @@ test.describe('Linux', () => {
 test('search', async ({ page }) => {
   await page.goto(url)
 
-  // Search for "commit"
+  // Full search for "commit"
   const searchBox = page.getByPlaceholder('Type / to search entire site…')
   await searchBox.fill('commit')
+  await searchBox.press('Enter')
+
+  await expect(page).toHaveURL(/\/search\/results\?search=commit/)
+
+  await page.goto(url)
+
+  // Search for "commit"
+  await searchBox.fill('commit')
   await searchBox.press('Shift')
 
   // Expect the div to show up