TECHNIQUE FOR TEST COVERAGE OF VISUAL PROGRAMS

A method, system, and computer program for providing test coverage metrics in a visual programming environment. A test coverage model for visual programming is defined, which accounts for the specialized nature of visual programming, and the metrics are based on this model. The metrics are expressed in terms of elements familiar to the visual programmer, as opposed to using source code metrics. In a preferred embodiment, these elements comprise events, actions, connections, and attributes. The code implementing a visual program is instrumented according to this model, and test coverage information is gathered as the instrumented program executes.