Information Communication Technology ICT – 7 The systems life cycle | e-Consult

Here are three types of test data a developer could use for a login form:

1. Valid Username and Password: This is the baseline test. It verifies that the login form correctly authenticates users with legitimate credentials. It's important to ensure the core login process works as intended. Failure here indicates a fundamental problem with the authentication logic.
2. Invalid Username and Valid Password: This tests the username validation. It checks if the system correctly rejects incorrect usernames while allowing users with valid passwords to log in. It reveals issues with username format validation or database lookup.
3. Valid Username and Invalid Password: This tests the password validation. It verifies that the system correctly rejects users with incorrect passwords while allowing users with valid usernames to log in. It reveals issues with password matching algorithms or password storage.