This page compiles papers related to unit test automation. Specifically, it discusses a unit testing tool for C programs that incorporates a classification-tree editor for designing functional test cases. Additionally, the tool provides components for test data selection and expected values prediction. The entire process, including test execution, monitoring, test evaluation, regression testing, and test documentation, is fully automated. As a result, test drivers are generated, and the program code is automatically instrumented. This tool, named TESSY, has been successfully utilized in software development projects worldwide and has inspired the development of many other unit testing tools.