# Test::Unit and one-time setup and teardown **URL:** \ **Category:** ruby-talk\ **Created:** [27 February 2007 20:25 UTC](https://rubytalk.org/t/test-unit-and-one-time-setup-and-teardown/35721 "2007-02-27T20:25:27Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Ara\_Vartanian](https://avatars.discourse-cdn.com/v4/letter/a/a87d85/32.png) [@Ara\_Vartanian](https://rubytalk.org/u/Ara_Vartanian)\ **Post date:** [27 February 2007 20:25 UTC](https://rubytalk.org/t/test-unit-and-one-time-setup-and-teardown/35721/1 "2007-02-27T20:25:27Z")
Does anyone know of a way of performing one-time setup and teardown per Test::Unit::TestCase? I have an integration test with an external component where, unfortunately, mocking out a server response is not feasible. So I need to mount a servlet to interact with my test. It would be pointless and slow to do this once for every test method. I know other unit testing frameworks define such callbacks. Does Test::Unit? If not, is there a clever way of getting around it? I am using Rails's 'test/helper', so I'm not instantiating my own test harness. Obviously, I can setup any needed resources in the class scope of the unit test itself, BUT that still doesn't give me a callback for teardown. Any ideas? Thanks for your help. -- Ara Vartanian > **···** > > \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ > Yahoo! Music Unlimited > Access over 1 million songs. > [http://music.yahoo.com/unlimited](http://music.yahoo.com/unlimited) ---
**Author:** ![Forum](https://avatars.discourse-cdn.com/v4/letter/f/43a26b/32.png) [@Forum](https://rubytalk.org/u/Forum)\ **Post date:** [27 February 2007 21:46 UTC](https://rubytalk.org/t/test-unit-and-one-time-setup-and-teardown/35721/2 "2007-02-27T21:46:34Z")
> Does anyone know of a way of performing one-time setup and teardown per Test::Unit::TestCase? > > I have an integration test with an external component where, unfortunately, mocking out a server response is not feasible. So I need to mount a servlet to interact with my test. It would be pointless and slow to do this once for every test method. I know other unit testing frameworks define such callbacks. Does Test::Unit? If not, is there a clever way of getting around it? > > I am using Rails's 'test/helper', so I'm not instantiating my own test harness. Obviously, I can setup any needed resources in the class scope of the unit test itself, BUT that still doesn't give me a callback for teardown. > > Any ideas? > > Thanks for your help. > > -- Ara Vartanian Déjà vu ??? As I pointed out in the previous thread I do my setup in some constant accessible way, e.g. in a module or class or on script level. Let us assume that I have a testobject that supports setup and teardown ... MyTestObj = Testobject.new MyTestObj.setup class Tester \< test::unit::Testcase etc for teardown you have to experiment with at\_exit but I hope, please test it though that at\_exit do   MyTestObj.teardown end is \*not\* executed before the execution of the Testsuit by the testrunner, not sure alas. You can still write a pseudo testcase for the teardown but I agree that this is a pain. HTH Robert > **···** > > On 2/27/07, Ara Vartanian \ wrote: > > > \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ > > Yahoo! Music Unlimited > > Access over 1 million songs. > > [http://music.yahoo.com/unlimited](http://music.yahoo.com/unlimited) > > -- > We have not succeeded in answering all of our questions. > In fact, in some ways, we are more confused than ever. > But we feel we are confused on a higher level and about more important things. > -Anonymous ---
**Author:** ![Eric\_Hodel1](https://avatars.discourse-cdn.com/v4/letter/e/a9adbd/32.png) [@Eric\_Hodel1](https://rubytalk.org/u/Eric_Hodel1)\ **Post date:** [27 February 2007 23:17 UTC](https://rubytalk.org/t/test-unit-and-one-time-setup-and-teardown/35721/3 "2007-02-27T23:17:07Z")
> Does anyone know of a way of performing one-time setup and teardown per Test::Unit::TestCase? Do it at class level and store it in a class variable or constant. > I have an integration test with an external component where, unfortunately, mocking out a server response is not feasible. So I need to mount a servlet to interact with my test. It would be pointless and slow to do this once for every test method. I know other unit testing frameworks define such callbacks. Does Test::Unit? If not, is there a clever way of getting around it? I don't believe you. I've tested complex interactions with a stub'd Net::HTTP. See rc\_rest/uri\_stub.rb and rc\_rest/net\_http\_stub.rb. > I am using Rails's 'test/helper', so I'm not instantiating my own test harness. Obviously, I can setup any needed resources in the class scope of the unit test itself, BUT that still doesn't give me a callback for teardown. at\_exit {    at\_exit {      # your teardown    } } > **···** > > On Feb 27, 2007, at 12:25, Ara Vartanian wrote: ---
**Author:** ![Mat\_Schaffer](https://avatars.discourse-cdn.com/v4/letter/m/71e660/32.png) [@Mat\_Schaffer](https://rubytalk.org/u/Mat_Schaffer)\ **Post date:** [28 February 2007 03:54 UTC](https://rubytalk.org/t/test-unit-and-one-time-setup-and-teardown/35721/4 "2007-02-28T03:54:52Z")
Have you tried BEGIN {} and END {}? But perhaps there's something more graceful. -Mat > **···** > > On Feb 27, 2007, at 3:25 PM, Ara Vartanian wrote: > > > Does anyone know of a way of performing one-time setup and teardown per Test::Unit::TestCase? > > > > I have an integration test with an external component where, unfortunately, mocking out a server response is not feasible. So I need to mount a servlet to interact with my test. It would be pointless and slow to do this once for every test method. I know other unit testing frameworks define such callbacks. Does Test::Unit? If not, is there a clever way of getting around it? > > > > I am using Rails's 'test/helper', so I'm not instantiating my own test harness. Obviously, I can setup any needed resources in the class scope of the unit test itself, BUT that still doesn't give me a callback for teardown. > > > > Any ideas? ---
**Author:** ![Pit](https://avatars.discourse-cdn.com/v4/letter/p/f14d63/32.png) [@Pit](https://rubytalk.org/u/Pit)\ **Post date:** [28 February 2007 08:24 UTC](https://rubytalk.org/t/test-unit-and-one-time-setup-and-teardown/35721/5 "2007-02-28T08:24:00Z")
Eric Hodel schrieb: > at\_exit { >   at\_exit { >     # your teardown >   } > } Nice trick, Eric! Thanks for sharing. Regards, Pit