Error 'The type is not interceptable' for overwritten registrations

[ArnaudB88]

Hi,

The following error occurs when resolving the interface IADUtilities:

The type X.Business.Utilities.ADUtilitiesStubbed is not interceptable.
Parameter name: interceptedType

---

Exception occurred while:

·resolving type: 'ADUtilitiesStubbed'
•resolving type: 'IADUtilities' mapped to 'ADUtilitiesStubbed'

My setup:

public interface IAdUtilities {}
public class AdUtilities : IAdUtilities {}
public class AdUtilitiesStubbed : IAdUtilities {}

The registrations are build like:
1. Registration by convention:

var assemblies = System.IO.Directory.GetFiles(AppDomain.CurrentDomain.BaseDirectory, AssemblyConstants.AssemblyNamePrefix + "*.dll")
	.Select(f => System.Reflection.Assembly.LoadFile(f));

container.RegisterTypes(
	AllClasses.FromAssemblies(assemblies).Where(t => t.Namespace.StartsWith(AssemblyConstants.AssemblyNamePrefix, StringComparison.OrdinalIgnoreCase)),
	WithMappings.FromMatchingInterface,
	WithName.Default,
	t => lifetimeManager());

Result of this:

• IAdUtilities is registered to AdUtilities and resolvable
• AdUtilitiesStubbed is registered to itself and resolvable

2. Overwrite convention registrations by more advanced registration

container.RegisterType<IADUtilities, ADUtilities>(
	createLifetimeManager(),
	new Interceptor<InterfaceInterceptor>(),
	new InterceptionBehavior<LogBehavior>(),
	new InterceptionBehavior(new ImpersonationBehavior("mydomain", "myUsername", "myPassword", container.Resolve<Interfaces.ILogger>()))
);

Result of this:

• IAdUtilities is registered to AdUtilities with 2 interceptors, and is resolvable
• AdUtilitiesStubbed is not changed but is not resolvable anymore:

The type X.Business.Utilities.ADUtilitiesStubbed is not interceptable.
Parameter name: interceptedType

---

Exception occurred while:

·resolving type: 'ADUtilitiesStubbed'

This is probably caused by the fact that interception is registered on the FromType (here IAdUtilities).

3. For unit testing, the standard registrations should be overwritten by stubbed classes
container.RegisterType<Business.Interfaces.Utilities.IADUtilities, Business.Utilities.ADUtilitiesStubbed>(createLifetimeManager());

Result of this:

• IAdUtilities is registered to AdUtilitiesStubbed, resolving fails:

The type X.Business.Utilities.ADUtilitiesStubbed is not interceptable.
Parameter name: interceptedType

---

Exception occurred while:

·resolving type: 'ADUtilitiesStubbed'
•resolving type: 'IADUtilities' mapped to 'ADUtilitiesStubbed'

It seems like the resolve happens in 2 steps:

• IAdUtilities -> AdUtilitiesStubbed
• AdUtilitiesStubbed -> AdUtilitiesStubbed (which fails to resolve)

Why does resolving the Stubbed class fail? This is not as expected (in old unity versions this works correct).
Can this be fixed please?

fyi: When reregistereing AdUtilitiesStubbed as last, resolve succeeds:
container.RegisterType<Business.Utilities.ADUtilitiesStubbed, Business.Utilities.ADUtilitiesStubbed>(createLifetimeManager());