Whenever programmers write or change code, there is a fair chance that they introduce programming errors. Therefore, testing is a crucial part of every development project.
In modern programming, the code is structured in reusable classes and methods. To detect and localize potential programming errors, a thorough test of each modularization unit is needed.
Let's look at an example.
ABAP Unit - Implement Module Tests in ABAP
ABAP Unit is a technique that allows you to implement module tests with the ABAP language. You can trigger test execution manually during development but also automatically on a larger scale and a regular basis.
ABAP Unit tests are implemented as methods of specially designated ABAP classes. These test methods serves as test scripts, with which code under test can be run, and with which the results can be evaluated.
Let's continue with our example.
It is very important that once the tests are there, you can perform them any time and as often as you want: Before initial shipment, after having applied changes to the productive code, or for error analysis when a user reports a problem. And, executing the tests costs you only a few mouse clicks.