Test Case ID: TC_Login_001
Test Case Title: Verify that the user can log in with valid credentials.

Objective:

To ensure that the user login functionality works as expected when valid credentials are provided.

Preconditions:

1. The application is installed and launched successfully.
2. The user has a registered account with valid login credentials (username and password).

Test Steps:

1. Navigate to the login screen of the application.
2. Enter a valid username in the Username field.
3. Enter the corresponding valid password in the Password field.
4. Click the Login button.

Expected Result:

1. The user is successfully authenticated.
2. The application redirects to the home screen or dashboard.
3. A success message or welcome message (e.g., “Welcome, [username]”) is displayed.
4. No error messages are shown.

Postconditions:

1. The user remains logged in until explicitly logged out or the session expires.
2. The application stores session data securely.

Additional Notes:

• Ensure error messages do not appear for valid credentials.
• Verify the time taken to authenticate and redirect does not exceed acceptable limits (e.g., 3 seconds).