An Improved Method of The Static Directed Automated Random Testing Method in Test Data Generation for C/C++ Projects

Concolic testing has been well-known among software quality assurance methods thanks to its fully automated capability of generating test data, executing them, and producing code coverage reports. This paper presents an improved method named ISDART for SDART, which is one of the most recent advanced methods based on concolic testing, to increase its performance. The key idea of the proposed method is to remove the waste time on generating and executing random test data which do not increase the code coverage. Initially, ISDART generates random test data only once. Then, with the code coverage information retrieved from the randomly generated test data, ISDART explores an uncovered test path, transforms them to test path constraints, solves those constraints, and generates a new test data from the resulting solution. The process is repeated until no uncovered test path can be found. We have implemented both SDART and ISDART and performed experiments with some common unit functions. The experimental results show that ISDART outperforms SDART in terms of speed for the whole testing process whilst reducing the number of generated test data.