c# - Can not resolve symbol of mocked object -

so learn more unit tests , mocking created following simple interface want mock , test in unit test:

namespace testprojekt {     public interface icsvfile     {         string filename { get; }          int getfilesize();     } } 

and test using nunit , moq

namespace nunittests {     using moq;     using nunit.framework;     using testprojekt;      [testfixture]     public class unittests1     {          private const string filename = "0030001744_14224429_valuereport_20140527000012_1104.csv";           private const int filesize = 155;          [test]         public void exampletest()         {             var file = new mock<icsvfile>();             file.setup(m => m.getfilesize()).returns(filesize);             file.setupget(m => m.filename).returns(filename);              assert.areequal(filename, file.filename);             assert.areequal(filesize, file.getfilesize);         }     } } 

i made based on tutorial found online , quite interesting. problem is, visual studio cant resolve method , property or else setup on mocked object.

all dlls referenced correctly. must super thing cant figure out. in advance!

i guess encountered compile error. reason used properties directly instance of mock<icsvfile> type. instead, should use file.object.filename. object property represents mocked instance of icsvfile.

modify code following.

assert.areequal(filename, file.object.filename); assert.areequal(filesize, file.object.getfilesize);