Code Under Test

Test against interfaces, not implementations

A practical consequence of the Test publics, not private internals, type your code under test with an interface

DATA code_under_test TYPE REF TO some_interface.

rather than a class

" anti-pattern
DATA code_under_test TYPE REF TO some_class.

From SAP/styleguides under CC BY 3.0 — more details
Last updated on 2026-07-26

Name the code under test meaningfully, or default to CUT Extract the call to the code under test to its own method