Towards combining functional requirements tests and unit tests as a preventive practice against software defects

During the last decade, software testing has gained increased popularity and awareness. Despite this fact, major companies around the world have already started to eliminate the process of software testing as a singular activity and have included it within the other steps of the software life-cycle. By adhering to this tendency, this article concentrates on exploring two existing white box and black box testing techniques together with a method by which they can be combined and applied during code creation in order to minimize the debugging effort at a later point in time. An open source software program written in .NET was chosen for demonstrating the proposed gray-box method and a small analysis on the use-case coverage was made.