ABAP_to_the_Future

Automating the Test Process 3.4
support for this. From release 7.31 of ABAP, you can follow the menu path Local
Test Classes 폷 Execute 폷 Execute Tests With 폷 Code Coverage. As mentioned earlier
in the book, the same feature is available with ABAP in Eclipse.
3.4 Automating the Test Process
In the example presented in this chapter, the code was deliberately simple in
order to highlight the basic principles without getting bogged down with unnecessary
detail. However, in the real world programs are never simple. Even if they
start off simple, they keep growing and mutating, the ground of the original purpose
getting buried under the ever-falling snow of new functionality.
If you think about what you have read above, you will see that this can lead to
quite a large effort in writing the test code, in two areas:
왘 Setting up the class under test via the SETUP method
Well-designed object-oriented programs use lots of small reusable classes, and
these often need to be inserted into the main class during construction. The
smaller classes often need still smaller cl asses inserted into them during their
construction, and so on. In practical terms, this can mean a lot of lines of code
to build up your test class, passing in assorted mock doubles as well as elementary
data parameters, such as date, and organizational elements, such as plant
or sales organization.
왘 Creating mock objects
Although you need mock objects to take the place of real objects during a test,
in order to avoid actual database access and the like it can take a good deal of
effort to create these and to write the logic inside them to return hard-coded
values. Even worse, if yo u are passing in constructor objects as interfaces as
opposed to actual classes (which all the OO experts recommend), then you
need to expend even more effort, beca use you have to create an implementation
for every method in your mock objectthat uses the interface, including the
methods you are not interested in.
Luckily, there are solutions for both problems. Neither are anything you will find
in the SAP standard, but both solutions use the multitude of tools available within
the ABAP environment.
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