An Integration Testing Approach Based on Composition of Unit Test Cases

Assembling unit models to perform integration testing often lead to both state explosion and the repeated work of unit testing. To mitigate the above crux, we present a novel integration testing approach, which derives integration test cases from the composition of unit test cases instead of unit models. Thus, the integration testing is performed efficiently and the difficulties of model combination are alleviated. The results of case study show that the proposed method not only bears the equal fault-detecting ability with low computational complexity, but also offers more generality compared with the model assemble-based method; therefore the development cost could be reduced.