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Random Test Data Generation For Java Classes Annotated With Jml Specifications, Yoonsik Cheon, Carlos E. Rubio-Medrano
Random Test Data Generation For Java Classes Annotated With Jml Specifications, Yoonsik Cheon, Carlos E. Rubio-Medrano
Departmental Technical Reports (CS)
The hidden states of objects create a barrier to designing and generating test data automatically. For example, the state of an object has to be established indirectly through a sequence of method invocations. For a non-trivial class, however, it is extremely unlikely that a randomly-chosen sequence of method invocations can construct an object successfully, as each invocation has to satisfy the state invariants. Nonetheless, automated random testing can reduce the cost of testing dramatically and has potential for finding errors that are difficult to find in other ways because it eliminates the subjectiveness in constructing test data. We propose a …
Automated Random Testing To Detect Specification-Code Inconsistencies, Yoonsik Cheon
Automated Random Testing To Detect Specification-Code Inconsistencies, Yoonsik Cheon
Departmental Technical Reports (CS)
An interface specification language such as JML provides a means to document precisely the behavior of program modules such as Java classes, and it is being adopted by industry. However, few practical tools exist for programmers to assure the correctness of their interface specifications. Nonetheless, the correctness of an interface specification is a prerequisite for the use of the specification, both as a precise API documentation and as a foundation for formal verification of and reasoning about the implementation. We propose automated random testing as a practical tool to assure the correctness of interface specifications. The key idea of our …