mono - Moq: Verifying a method was called with a particular delegate produces "method argument length mismatch" -


i've got class a calls method on interface b, passing 1 of own methods sort of continuation b supposed call when has result. code seems work fine in practice, can't figure out how test moq -- when try obvious thing, produces system.argumentexception : method argument length mismatch. thought @ first might code, fails same way following toy case:

public class {     readonly b myb;      public (b b)     {         myb = b;     }      public void handlec (c c)     {         //     }      public void dofindc ()     {         myb.findc (handlec);     } }  public interface b {     // finds c , passes handlec     void findc (action<c> handlec); }  public interface c { }  [testfixture()] public class atest {     [test()]     public void testdofindc ()     {         mock<b> bmock = new mock<b> ();         a = new a(bmock.object);         a.dofindc();          bmock.verify(b => b.findc(a.handlec));     } }

i'm guessing there's behind-the-scenes magic delegates don't understand yet, being relatively new c#, what's right way test this?

update: reference, i'm using mono 2.6.7 on macos 10.6.5 , targeting .net 3.5.

updated again: best guess mono bug; i've filed https://bugzilla.novell.com/show_bug.cgi?id=656918.

mono bug: https://bugzilla.novell.com/show_bug.cgi?id=656918.


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