An integration test coverage metric for Java programs

Abstract

A large number of test coverage metrics have been proposed in the context of unit and system testing of object-oriented programs. However, structural coverage metrics for integration testing have scarcely been reported. On the other hand, interface bugs are known to be one of the most insidious. In this context, we propose a suite of integration test coverage metrics based on the coverage of data and control dependency edges of the JSysDG (Java System Dependency Graph). We also define a metric that additionally uses the state machine models of the given classes to be integrated. We present our experimental results and a comparison of our metrics with related metrics.