Re: Is 'Final' for classes and methods a good feature or something that should be eliminated?

rmoldskr+usenet@xxxxxxxxx wrote:
Michael Feathers <mfeathers@xxxxxxxxxxxxxxxx> wrote:


Final gets in the way of both of those. Really, there are very few alternatives at the unit level.


I hardly ever use either of those methods when I write unit tests, so
I don't see how that can be true. After all, you're testing the code
that uses the final-ed object, and not the final-ed code itself.

Sure, it's sometimes _convenient_ to be able to proxy an library object by inheritance and overloading, but I can't really see any
situration where it's _necessary_ for writing an Unit test.

What about the cases that I mentioned.. when there is a side effect that you wouldn't want to have occur when your testing the code that uses the final-ed object?

Could be anything from hitting the database, to sending mail or launching cruise missiles.


----
Michael Feathers
http://www.objectmentor.com
http://michaelfeathers.typepad.com
author of: Working Effectively with Legacy Code (Prentice Hall 2005)
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