登录功能设计测试用例

Sure! Here are a few test cases for testing the login functionality:

1. Valid credentials:
- Input: Username: "exampleuser", Password: "examplepassword"
- Expected Output: Successful login

2. Invalid username:
- Input: Username: "invaliduser", Password: "examplepassword"
- Expected Output: Invalid username or password error message

3. Invalid password:
- Input: Username: "exampleuser", Password: "invalidpassword"
- Expected Output: Invalid username or password error message

4. Empty username:
- Input: Username: "", Password: "examplepassword"
- Expected Output: Invalid username or password error message

5. Empty password:
- Input: Username: "exampleuser", Password: ""
- Expected Output: Invalid username or password error message

6. SQL injection attempt:
- Input: Username: "' OR '1'='1'; --", Password: "examplepassword"
- Expected Output: Invalid username or password error message

7. Case sensitivity:
- Input: Username: "ExampleUser", Password: "ExamplePassword"
- Expected Output: Invalid username or password error message (if case-sensitive)

8. Concurrent login attempts:
- Input: Multiple login attempts with different usernames and passwords
- Expected Output: Successful logins for valid credentials, and error messages for invalid credentials

9. Password strength:
- Input: Username: "exampleuser", Password: "weak"
- Expected Output: Password strength error message (e.g., "Password must be at least 8 characters long")

10. Remember Me functionality:
- Input: Remember Me checkbox checked/unchecked
- Expected Output: User remains logged in after session expiration (if Remember Me is checked), or user gets logged out (if Remember Me is unchecked)

These test cases cover various scenarios to ensure that the login functionality is working correctly and handles different situations appropriately.