Quality Analyst Interview Question: Explaining the Difference Between Positive and Negative Testing

Positive testing involves evaluating the system by providing the expected input and validating that the output is as expected. It focuses on testing the system's intended functionality to ensure it works as intended.

Example of Positive Testing:

Scenario: Sign Up Form Validation
Input: Valid email address
Expected Output: Successful registration
Result: Test Passed

Negative testing, on the other hand, involves testing the system by providing unexpected input to see how the system behaves under abnormal conditions. It focuses on identifying defects and weaknesses in the system.

Example of Negative Testing:

Scenario: Log In Form Validation
Input: Invalid password
Expected Output: Error message for incorrect password
Result: Test Passed

By performing both positive and negative testing, quality analysts can ensure that the system functions correctly under normal conditions and is resilient to unexpected scenarios.