White box testing is a type of testing technique that aims to evaluate the code, design, and internal structure of a program to improve its design, usability, and security. It is one of the two parts of Box Testing methodologies included in software QA testing.
The term “white box” is used to refer to the concept of the see-through box. Simply put, the clear box or White Box symbolizes the ability to look through the outer shell of a program and into its inner layout.