Computer Aided Test Tool (CATT) is an ABAP Workbench test tool from SAP. CATT allows programmers to create automatic test cases without user interaction. CATT is part of SAP's popular R/3 system, a comprehensive set of business applications for storing, analyzing and retrieving corporate data.
CATT provides a library of reusable testing modules and allows reusable test cases to be executed in different testing environments. CATT also comes equipped with advanced debugging modules, providing a detailed log of activities and intermediate steps. This helps to make the testing approach more organized and structured.