First I create Nunit testing project on Nlayer application in Visual Studio 2008.
Then Create Nunit testing method to check the functionality of some method (which is in BusinessLogic layer)which returns the value as Generic collections. While I try to access Collections in the testing project, it produce the error: “The type 'Spaanjaars. ContactManager. BO. AddressList' is defined in an assembly that is not referenced .You must add a reference to assembly 'App_Code, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null'". How can I overcome this problem? Give me suggestions.