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Recently, a new approach to perform regression testing has been defined: thepoint of interest (POI) testing. A POI, in this context, is any expression of aprogram. The approach receives as input a set of relations between POIs from aversion of a program and POIs from another version, and also a sequence ofinput functions, i.e. test cases. Then, a program instrumentation, an inputtest case generation and different comparison functions are used to obtain thefinal report which indicates whether the alternative version of the programbehaves as expected, e.g. it produces the same values or it uses lessCPU/memory. In this paper, we explain how we can improve the POI testingapproach through the use of common stack traces and a more sophisticatedtracing for calls. These enhancements of the approach allow users to identifyerrors earlier and easier. Additionally, they enable new comparison modes andnew categories of reported unexpected behaviours.

Enhancing POI testing approach through the use of additional information