ABAP Runtime Environment (BC-ABA)

In unit testing, the code entity that is being tested (CUT). Typically, the component under test in unit testing is a single class or method. In ABAP, the component under test may be a method, function module, or executable program or form routine or method within an executable program.

In ABAP, the component under test should be a single program in which the ABAP Unit tests are implemented as one or more local classes. This combination ensures that the relationship between test and CUT is clear, that tests are transported with CUT, and that the most current test is always available.