What Is Nonfunctional Testing?

Types of nonfunctional testing include performance testing, security testing, usability testing, reliability testing, and scalability testing. Nonfunctional testing assesses aspects such as speed, security, and user experience, ensuring the software meets specified nonfunctional requirements.

Functional testing assesses specific functions of a system, while nonfunctional testing evaluates aspects like performance, usability, and security. Functional testing verifies what the system does, while nonfunctional testing addresses how well it performs.

No, API testing is not solely nonfunctional testing. API testing can include both functional and nonfunctional aspects. Functional API testing verifies that the API performs its intended functions and behaviors correctly. Nonfunctional API testing assesses other qualities like performance, security, reliability, and so on. In short, API testing encompasses both functional validation and nonfunctional quality attributes.

Unit testing is considered functional testing, focusing on verifying the individual components or units of code to ensure they produce the expected results.

Yes, nonfunctional testing aspects like performance, security, and usability testing can be automated using specialized tools to ensure consistent and repeatable evaluations.