A Method for Systematically Generating Tests from Object-Oriented Class Interfaces
Mahesh Babu Mungara · VTechWorks (Virginia Tech) · 2003
This thesis describes the development and evaluation of a manual black-box testing method inspired by Zweben’s test adequacy criteria, which apply white-box analogues of all-DU-pairs and all-nodes to a flow graph generated from the black-box specification. The approach described herein generates tests from a matrix representation of a class interface based on the flow graph concept. In this process, separate matrices for all-DUpairs and all-nodes guide the generation of the required tests. The primary goal of the research is not to optimize the number of tests generated but to describe the process in a user-friendly manner so that practitioners can utilize it directly, quickly, and efficiently for real-world testing purposes. The approach has been evaluated to assess its effectiveness at detecting bugs. Both strategies—all-DU-pairs and all-nodes—were compared against three other testing methods: the commercial white-box testing tool Jtest, Orthogonal Array Testing Strategy (OATS), and test cases generated at random. The five approaches were applied across a sample of eleven java classes selected from java.util.*. Experimental results indicate that the two versions resulting from this research performed on par with or better