An application module is read and parsed into a text file to store source code lines included into the implementation of the application module. The text file is analyzed and predicate conditions are identified in one or more of source code lines. Key values associated with a predicate condition from the predicate conditions are determined. Key values are associated with a key field defined for the application module. A plurality of paths of execution of the application module is determined based on the text file analysis and on the determined predicate conditions. A path includes one or more lines from the source code lines corresponding to a sequence of execution steps of the application module. Based on determining key values for the predicate conditions and the plurality of paths, generating test cases corresponding to the path and corresponding predicate conditions.