What type of testing is also known as white box testing?

White box testing, also known as structural testing, focuses on the internal workings of the software. This form of testing enables testers to look inside the application and understand how the software operates, which includes examining the code, algorithms, and data structures. By doing so, testers can create test cases based on the logic and structure of the application, ensuring that various paths through the code execute as expected. This testing type is crucial for identifying logical errors, security vulnerabilities, and ensuring that all possible execution paths have been tested.

Unlike functional testing, which evaluates the software against specified requirements without knowledge of the internal code structure, structural testing provides a comprehensive examination of the internal mechanics. Integration testing and acceptance testing serve different purposes related to the interaction between components and overall user acceptance, respectively, rather than the internal structure of the code itself.