What is the difference between white-box and black-box software testing?
White-box and Black-box testing are mechanisms to evaluate the effectiveness of software products. These tests may have the purpose of unearthing security vulnerabilities, performance issues, and coding problems.
White-box focuses on examining internal logical structures and architectures of the software product. These test will require testers to go through all the source code to uncover programming errors.
Black-box testing, on the other hand, focuses on examining software programs from an end user perspectives. Testers will provide the software various inputs types and inspect its behavior and the possible outputs. Unlike white-box testing, testers in black-box testing do not have access to the internal source code of a software product. User acceptance testing (UAT) is common example of black-box testing.
Another important software test type that resides between the white-box and black-box testings is gray-box testing. This is helpful to consider the qualities of both white-box and black-box test types to validate software. Therefore, gray-box testing combine the two test types mentioned earlier and is the most applicable software testing type.