brucker.ea:hol-testgen:2009 BookSection Heidelberg Springer-Verlag 2009 Fundamental Approaches to Software Engineering (FASE09) 5503 417-420 BruckerAchimD WolffBurkhart ChechikMarsha WirsingMartin HOL-TestGen: An Interactive Test-case Generation Framework We present HOL-TestGen, an extensible test environment for specification-based testing build upon the proof assistant Isabelle. HOL-TestGen leverages the semi-automated generation of test theorems (a form of a partition), and their refinement to concrete test data, as well as the automatic generation of a test driver for the execution and test result verification. HOL-TestGen can also be understood as a unifying technical and conceptual framework for presenting and investigating the variety of unit and sequence test techniques in a logically consistent way.