How is testing affected by object-oriented designs?

Question

Lalit M · Answer

A well-engineered object-oriented design can make it easier to trace from the code to internal design from the internal design to the functional design and from the functional design to the requirements. While there will be little affect on black box testing (where an understanding of the internal design of the application is unnecessary) white-box testing can be oriented to the application's objects. If the application was well designed this can simplify testing and test design.