Failing test

src/StructureMap.Testing/Bugs/GenericVarianceResolution.cs

@@ -0,0 +1,62 @@
+namespace StructureMap.Testing.Bugs
+{
+    using System.Linq;
+    using NUnit.Framework;
+    using StructureMap.Graph;
+
+    public interface INotificationHandler<in TNotification>
+    {
+        void Handle(TNotification notification);
+    }
+
+    public class BaseNotificationHandler : INotificationHandler<object>
+    {
+        public void Handle(object notification)
+        {
+
+        }
+    }
+
+    public class OpenNotificationHandler<TNotification> : INotificationHandler<TNotification>
+    {
+        public void Handle(TNotification notification)
+        {
+
+        }
+    }
+
+    public class Notification { }
+
+    public class ConcreteNotificationHandler : INotificationHandler<Notification>
+    {
+        public void Handle(Notification notification)
+        {
+
+        }
+    }
+
+    [TestFixture]
+    public class GenericVarianceResolution
+    {
+        [Test]
+        public void RegisterMultipleHandlersOfSameInterface()
+        {
+            var container = new Container(x =>
+            {
+                x.Scan(s =>
+                {
+                    s.TheCallingAssembly();
+                    s.AddAllTypesOf(typeof (INotificationHandler<>));
+                });
+            });
+
+            var handlers = container.GetAllInstances<INotificationHandler<Notification>>();
+
+            handlers.Single(h => h.GetType() == typeof (ConcreteNotificationHandler));
+            //handlers.Single(h => h.GetType() == typeof(OpenNotificationHandler<Notification>));
+            handlers.Single(h => h.GetType() == typeof(BaseNotificationHandler));
+
+            handlers.Count().ShouldEqual(3);
+        }
+    }
+}

src/StructureMap.Testing/StructureMap.Testing.csproj

@@ -215,6 +215,7 @@
     <Compile Include="Bugs\EnumerableShouldGetAllValuesTester.cs" />
     <Compile Include="Bugs\Exception_Within_Exception_Bug.cs" />
     <Compile Include="Bugs\FillAllPropertiesShouldWorkForAlreadyConfiguredPluginsBug.cs" />
+    <Compile Include="Bugs\GenericVarianceResolution.cs" />
     <Compile Include="Bugs\InjectByFuncWithNoPublicConstructors.cs" />
     <Compile Include="Bugs\Jimmys_silly_open_generics_bug.cs" />
     <Compile Include="Bugs\LambdaCreatesNullBugTester.cs" />