chore: Add some tests

frontend/e2e/homepage.spec.ts

@@ -7,3 +7,30 @@ test('home page loads correctly', async ({ page }) => {
   await expect(page.getByRole('heading', { name: 'Willkommensbonus' })).toBeVisible();
   await expect(page.getByText('von bis zu €')).toBeVisible();
 });
+
+test('registration popup should open and close', async ({ page }) => {
+  await page.goto('/');
+  await page.getByRole('button', { name: 'Registrieren' }).click();
+
+  await expect(page.getByText('Konto erstellenE-')).toBeVisible();
+
+  await page.getByRole('button', { name: 'Dialog schließen' }).click();
+
+  await expect(page.getByText('Konto erstellenE-')).not.toBeVisible();
+});
+
+test('registration should work', async ({ page }) => {
+  await page.goto('/');
+  await page.getByRole('button', { name: 'Registrieren' }).click();
+
+  await page.getByRole('textbox', { name: 'E-Mail' }).fill('test@kjan.email');
+  await page.getByRole('textbox', { name: 'Benutzername' }).fill('test-playwright');
+  await page.getByRole('textbox', { name: 'Passwort' }).fill('BananaMan123');
+  await page.locator('form').getByRole('button', { name: 'Registrieren' }).click();
+  await page.getByRole('button', { name: 'Dialog schließen' }).click();
+  await page.getByRole('navigation').getByRole('button', { name: 'Anmelden' }).click();
+  await page.getByRole('textbox', { name: 'Benutzername oder E-Mail' }).fill('test@kjan.email');
+  await page.getByRole('textbox', { name: 'Passwort' }).fill('BananaMan123');
+  await page.locator('form').getByRole('button', { name: 'Anmelden' }).click();
+  await expect(page.getByText('Email not verified')).toBeVisible();
+});