QA Fundamentals · Junior · Question 17 of 75
What is functional testing?
- 1Testing only the functions written in JavaScript
- 2Testing how fast the system responds under heavy load
- 3Testing what the system does against its functional requirements
Show the answer
Correct answer: Testing what the system does against its functional requirements
Explanation
Functional testing checks features: can a user log in, does the cart calculate the total, is an error shown for an invalid email. It answers 'what' rather than 'how well'.