ActiveSupport::TestCase vs Test::Unit::TestCase when unit testing rails
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21-09-2019 - |
Question
I recently noticed my test database is not being cleaned up after my tests run if my tests subclass Test::Unit::TestCase. If my tests subclass ActiveSupport::TestCase, everything is cleaned up properly.
Can anyone explain why, and/or provide an explanation of using one versus the other?
I am using shoulda and factory_girl.
Thanks.
Solution
If you take a look at the code, you'll see ActiveSupport::TestCase
has a lot of of setup and utility functions for testing Rails. Older versions of Rails used to use Test::Unit::TestCase
with a lot of mixins, but moved to subclassing a while ago.
If you're testing a Rails app, you should subclass ActiveSupport::TestCase
or ActionController:TestCase
for controllers. The generators will do this automatically, so you should not have to think about it most of the time.