In white-box testing, what is primarily being tested?

In white-box testing, the primary focus is on examining the internal structure and workings of the code. This testing method allows developers and testers to verify the flow of inputs through the code, the logic of algorithms, and the interaction of various components within the application. By looking at the source code and understanding how the software operates internally, testers can identify logical errors, conditions not handled properly, and potential security vulnerabilities caused by the structure of the code itself.

White-box testing stands in contrast to other testing methods that might focus on external behavior or user interactions. In this context, it is essential to emphasize that understanding the code at a granular level is crucial for ensuring that all paths and conditions have been thoroughly tested, leading to a stronger, more reliable application.