Visualization of test-to-code relations to detect problems of unit tests

Visualization of test information can be a means of providing an understanding of test-code relations which, in turn, is essential for other activities in SDLC such as: maintenance, software evolution, refactoring, etc. To our best knowledge, less research have specifically addressed the visualization of test-code relation and its importance in many tasks during software development. This paper is a modest contribution to draw attention to visualization of test-code relations and in particular visualizing of test-to-code traceability links. From the outcome of our investigation it has been demonstrated that visualizing of test-related metrics has been received rather interest of researchers; while in turn, little attention has been paid to visualizing of test to code traceability links. However, several practical questions emerged which can be investigated as the next step of our research , thus further research of visualization of test-to-code traceability links area is highly needed to address these questions