Abstract
Testing concurrency is difficult yet important. Because of arbitrary interference of concurrent objects, test case explosion becomes a major problem in testing concurrent systems. Synchronization and Deadlock being the two key features of concurrent systems make the systematic testing of concurrent systems a tedious task. In this paper we present a novel approach of generating test cases for concurrent systems with the help of UML Sequence Diagram. Our approach consists of transferring the Sequence Diagram into a Concurrent Composite Graph (CCG). The CCG is traversed by an effective graph traversing technique like BFS (Breath-First-Technique) and DFS (Depth-First-search) using message sequence path criteria to generate the test cases for concurrent systems. The proposed approach is applied to concurrent systems for test case generation and found to be very effective in controlling the test case explosion problem. The generated test cases are useful to detect interaction, scenario, as well as operational faults in case of concurrent systems.
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