Component Testing

Component testing involves testing the individual components  of code or classes with comprehensive test data. A test harness may need to be used to provide the modules with realistic data. This may be due to a function requiring inputs from another component or module which is not yet complete. Component testing is alpha testing and is performed by the development team.

This testing maybe known as functional (black box) testing is when the internal code of a program is largely ignored. The focus placed on inputs and outputs of a system. This requires no knowledge of the internal structure of the code.

This requires no knowledge of the internal structure of the code.  This type of testing is to assess whether the functional requirements of the system have been met