Clean up your unit tests – introducing zcl_abap_unit_wrapper
Today I decided to show you how having a common base class for your unit tests might help you save some time and improve the readability of your tests.
The class I use simply wraps all non-deprecated methods from cl_abap_unit_assert. This means they keep the exact same signatures and just pass them on like this:
METHOD assert_equals. assertion_failed = cl_abap_unit_assert=>assert_equals( act = act exp = exp tol = tol level = level msg = msg quit = quit ignore_hash_sequence = ignore_hash_sequence ). ENDMETHOD.
You can refactor existing test classes in two steps:
- Add inheritance.
- Use find/replace to get rid of cl_abap_unit_assert=> everywhere at once.
You can download the class from my blog’s git repository.
If you want to, you can take it and add your own often-used custom assert methods to have them accessible across your codebase.
Another advantage is easier testing of legacy code – you might not have certain assertion methods available on older releases, but you can pretend you do by replacing the cl_abap_unit_assert call in the base class with your downported version.
As always, hope this helps!