Why White Box Testing is called White?

White box testing also known as transparent box testing, clear box testing, glass box testing, or structural testing, is a method of testing in which the internal structure of the software being tested is known to the tester and is used to design the test cases.

The term "white" comes from the metaphor of a white box, which is transparent and allows the user to see inside. In contrast, black box testing is a method of testing in which the internal structure of the software is not known to the tester, and test cases are designed based on the functionality of the software as specified in the requirement documents.

White box testing is used to test the internal structure and logic of a program, and it is typically done by developers as part of the testing process. It is used to ensure that the software has been implemented correctly and that all the code paths have been exercised.

White box testing can help identify issues such as logic errors, code defects, and security vulnerabilities. It is often used in combination with other testing methods to ensure that the software is of high quality.

For more information, give a read to our white box testing tutorial.