Negative Testing

A Negative Testing is a testing strategy that validates software behavior using invalid inputs and unexpected conditions. Its purpose is to ensure the system handles errors gracefully, maintains stability, and displays appropriate error messages instead of crashing or behaving unpredictably.

Example: For a user registration form, a Negative Testing approach would involve entering an invalid email address (e.g., [email protected]), a password that doesn't meet complexity requirements (e.g., 123), or special characters in a field that only accepts letters to confirm that the system correctly rejects the input and provides clear, helpful error messages to the user.