asp.net mvc - Unit testing all controllers from a single test -

i created action filter want apply of controllers (including new ones introduced later on).

i figure useful unit test 1 cycles through each controller , verifies if criteria met, action filter impact result.

is wise create unit test hits multiple controllers? can share code similar test has proven useful?

edit: realized testing action filter might problematic. still, if have thoughts share on mass testing of controllers...

it not recommended test more 1 thing @ time in tests.

you should avoid logic in tests (switch, if, else, foreach, for, while) test less readable , possibly introduces hidden bugs.

many simple, readable, , therefore maintainable tests testing 1 thing each far preferable 1 test lot of complexity.

response edit

testing filters can achieved separating filter attribute. here example: loadmembershiptypelistfilter class has 'seams' needed use test fakes. logic in filter is tested.

public class loadmembershiptypelistfilter : iactionfilter {     private imembershiptypeprovider _provider;     private imembershiptypeadminmapper _mapper;      public loadmembershiptypelistfilter(imembershiptypeprovider provider, imembershiptypeadminmapper mapper)     {         _provider = provider;         _mapper = mapper;     }      #region iactionfilter members     public void onactionexecuted(actionexecutedcontext filtercontext)     {     }      public void onactionexecuting(actionexecutingcontext filtercontext)     {         //implementation...     }     #endregion } 

and attribute here uses filter, example resolves dependencies filter requires call service locator:

public class loadmembershiptypelistattribute : actionfilterattribute {     public override void onactionexecuting(actionexecutingcontext filtercontext)     {         var filter = new loadmembershiptypelistfilter(iocresolve.resolve<imembershiptypeprovider>(), iocresolve.resolve<imembershiptypeadminmapper>());         filter.onactionexecuting(filtercontext);     } } 

and controller uses attribute:

[loadmembershiptypelist] public actionresult create() {     return view(); }