White box testing | testing

White box testing

White box testing, also refereed as clear box, glass box testing  or structural testing.

White box testing tests internal structure or working of a program, as opposed to the functionality expose to the product user. In white box testing internal view of system, as well as programming expertise's are used to design test cases.

The tester chose input to exercise paths through the code and determine output. 

White box testing can be applied at the unit, integration and system level of software testing process. Through methods of test design many errors and problems are uncovered.

Techniques of white box testing include:

•  API testing

Application program interface testing of the application using public and private APIs.

• Codecoverage

In Code coverage creating tests to satisfy some criteria of code coverage.

•    Faultinjection methods

Fault injection methods deliberate introducing faults to gauge the efficacy of testing strategies.

•    Mutationtesting
• Statictesting methods