Moq - property of a particular class with another moq

Question

I am trying to create a layout for a particular class and mock one of its properties using another layout.

public class MyClass
{
  public virtual IAdapter Adapter {get; internal set;}
}

Testing...

var adapter = new Mock<IAdapter>();
adapter.Setup(a => a.WaitForDigit()).Returns(1);
var myClass = new Mock<MyClass>();
myClass.Setup(c => c.Adapter).Returns(adapter.Object); //throws exception

It throws the following exception: System.ArgumentException: Constant does not match a specific type

How can i fix this?

Edit:

I changed the design, and even then it still throws the same exception

public class MyClass
{
  public virtual IAdapter Adapter {get;set;}
  public MyClass(IAdapter adapter)
  {
    Adapter = adapter;
  }
}

var adapter = new Mock<IAdapter>();
adapter.Setup(a => a.WaitForDigit()).Returns(1);
var myClass = new MyClass(adapter.Object); //throws exception

System.ArgumentException: Constant does not match the defined type.
Result StackTrace:  
at System.Reflection.Emit.TypeBuilder.SetConstantValue(ModuleBuilder module, Int32 tk, Type destType, Object value)
   at System.Reflection.Emit.ParameterBuilder.SetConstant(Object defaultValue)
   at Castle.DynamicProxy.Generators.Emitters.MethodEmitter.DefineParameters(ParameterInfo[] parameters)
   at Castle.DynamicProxy.Generators.Emitters.MethodEmitter..ctor(AbstractTypeEmitter owner, String name, MethodAttributes attributes, MethodInfo methodToUseAsATemplate)
   at Castle.DynamicProxy.Generators.Emitters.AbstractTypeEmitter.CreateMethod(String name, MethodAttributes attributes, MethodInfo methodToUseAsATemplate)
   at Castle.DynamicProxy.Generators.MethodGenerator.Generate(ClassEmitter class, ProxyGenerationOptions options, INamingScope namingScope)
   at Castle.DynamicProxy.Contributors.CompositeTypeContributor.ImplementMethod(MetaMethod method, ClassEmitter class, ProxyGenerationOptions options, OverrideMethodDelegate overrideMethod)
   at Castle.DynamicProxy.Contributors.CompositeTypeContributor.Generate(ClassEmitter class, ProxyGenerationOptions options)
   at Castle.DynamicProxy.Generators.ClassProxyGenerator.GenerateType(String name, Type[] interfaces, INamingScope namingScope)
   at Castle.DynamicProxy.Generators.ClassProxyGenerator.<>c__DisplayClass1.<GenerateCode>b__0(String n, INamingScope s)
   at Castle.DynamicProxy.Generators.BaseProxyGenerator.ObtainProxyType(CacheKey cacheKey, Func`3 factory)
   at Castle.DynamicProxy.Generators.ClassProxyGenerator.GenerateCode(Type[] interfaces, ProxyGenerationOptions options)
   at Castle.DynamicProxy.DefaultProxyBuilder.CreateClassProxyType(Type classToProxy, Type[] additionalInterfacesToProxy, ProxyGenerationOptions options)
   at Castle.DynamicProxy.ProxyGenerator.CreateClassProxy(Type classToProxy, Type[] additionalInterfacesToProxy, ProxyGenerationOptions options, Object[] constructorArguments, IInterceptor[] interceptors)
   at Moq.Proxy.CastleProxyFactory.CreateProxy(Type mockType, ICallInterceptor interceptor, Type[] interfaces, Object[] arguments)
   at Moq.Mock`1.<InitializeInstance>b__24_0()
   at Moq.PexProtector.Invoke(Action action)
   at Moq.Mock`1.InitializeInstance()
   at Moq.Mock`1.OnGetObject()
   at Moq.Mock.GetObject()
   at Moq.Mock.get_Object()
   at Moq.Mock`1.get_Object()

Answer 1

It looks like a design issue to me. If you have a dependency on another class, then this dependency should not be publicly available. See here

Should the dependencies entered be public or private?

, , , . moq'ed MyClass .

Answer 2

, Moq. Castle.Core, .

, - Castle.Core v4.0.