Re: Unit testing framework suggestions?
Re: Unit testing framework suggestions?
- Subject: Re: Unit testing framework suggestions?
- From: Christian Pekeler <email@hidden>
- Date: Sun, 26 Sep 2004 11:43:47 -0600
[sorry for the smime-less repost]
On Sep 26, 2004, at 5:59, Marcel Weiher wrote:
On 25 Sep 2004, at 16:32, Georg Tuparev wrote:
finally I came to the conclusion that the problem is exactly the one
you discovered - separation of TestCase from the class being tested
[well, in reality this is not always true -- but please read my
replays to Marco I intend to write later today for more].
Yes, this was my impression as well, at first simply a conjecture and
a code smell: parallel class hierarchies. Now that I've worked with
JUnit for well over a year, I am absolutely convinced that my decision
to allow the class to test itself for MPWTest was precisely right.
Parallel class hierarchies are a code smell if both hierarchies are
production code. We're dealing with one hierarchy of production code
and another one of unit testing code. To me, that doesn't smell.
In my experience, for anything but trivial systems, these two class
hierarchies are not an exact mirror of each other. Often times I have
more than one test class per production class. These test classes test
different aspects of the production class and usually have different
setups. Sometimes I also have a testclass to test the interaction
between certain production classes. And other timed I don't have a test
class for a production class at all because I only test what could
possibly fail and what requires me to do TDD.
Christian
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