How to Mock (with Moq) Unity methods

Question

Extension methods are not good for testing (that\'s described here: Mocking Extension Methods with Moq, http://www.clariusconsulting.net/blogs/kzu/archive/2009/12/22/Howtomo

Answer 1

Remove the dependency on IUnityContainer and things become a lot easier and cleaner. Instead let unity inject your dependencies which are abstracted into interfaces. These are easily mocked. Here's an example using a little trick with Unity that injects an auto-factory for IMyLog.

public class MyManager
{
   private readonly Func logFactory;

   public MyManager(Func logFactory) 
   {
       this.logFactory = logFactory;
   }

   public IResult DoJob(IData data)
   {
       IMyLog log = logFactory();

       ...
   }
}

Or if you don't need to create the instance each time:

public class MyManager
{
   private readonly IMyLog myLog;

   public MyManager(IMyLog myLog) 
   {
       this.myLog = myLog;
   }

   public IResult DoJob(IData data)
   {
       ...
   }
}