A Factorial Experiment on Scalability of Search-based Software Testing
Abstract: Software testing is an expensive process, which is vital in the industry. Construction of the test-data in software testing requires the major cost and knowing which method to use in order to generate the test data is very important. This paper discusses the performance of search-based algorithms (preferably genetic algorithm) versus random testing, in software test-data generation. A factorial experiment is designed so that, we have more than one factor for each experiment we make. Although many researches have been done in the area of automated software testing, this research differs from all of them due to sample programs (SUTs) which are used. Since the program generation is automatic as well, Grammatical Evolution is used to guide the program generations. They are not goal based, but generated according to the grammar we provide, with different levels of complexity. Genetic algorithm is first applied to programs, then we apply random testing. Based on the results which come up, this paper recommends one method to use for software testing, if the SUT has the same conditions as we had in this study. SUTs are not like the sample programs, provided by other studies since they are generated using a grammar.
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