There is an authorization form: two fields — login, password, and a 'Login' button. What test cases can you come up with?

• Check successful login with valid username and password.
• Attempt login with empty fields (username and/or password).
• Enter incorrect username (e.g., with spaces, special characters).
• Enter incorrect password (too short, missing required characters).
• Verify error message for incorrect username or password.
• Check account lockout after multiple failed login attempts.
• Verify the functionality of the "Login" button when pressing Enter.
• Check visibility and accessibility of the "Login" button.
• Verify that entered data is preserved after an error.
• Test for SQL injection or XSS in input fields.
• Check form functionality across different browsers and devices.

Example test case:

**Title:** Successful login with valid data
**Steps:**
1. Enter a valid username.
2. Enter a valid password.
3. Click the "Login" button.
**Expected result:**
User is successfully authenticated and redirected to the main page.