test(ui): Add a very simple front page test

Login to the ORT Server UI as an admin, and assert that some elements
from the front page are rendered. This works as a crude smoke test for the
UI; if something totally breaks the UI, the front page won't even load, and
the test will fail.

Resolves #3789.

Signed-off-by: Jyrki Keisala <jyrki.keisala@doubleopen.org>

Author: Etsija

ui/tests/smoke-test.spec.ts

@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2025 The ORT Server Authors (See <https://github.com/eclipse-apoapsis/ort-server/blob/main/NOTICE>)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * License-Filename: LICENSE
+ */
+
+import { expect, test } from '@playwright/test';
+
+test('test', async ({ page }) => {
+  await page.goto('/');
+  await expect(
+    page.getByRole('heading', { name: 'Sign in to your account' })
+  ).toBeVisible();
+  await page.getByRole('textbox', { name: 'Username or email' }).click();
+  await page.getByRole('textbox', { name: 'Username or email' }).fill('admin');
+  await page.getByRole('textbox', { name: 'Username or email' }).press('Tab');
+  await page.getByRole('textbox', { name: 'Password' }).fill('admin');
+  await page.getByRole('button', { name: 'Sign In' }).click();
+  await expect(
+    page.getByText('Browse your organizations or create a new one')
+  ).toBeVisible();
+  await expect(
+    page.getByRole('link', { name: 'Add organization' })
+  ).toBeVisible();
+});