added fialing test case

src/StructureMap.Testing/Bugs/Bug_OpenGenericDecoratorsWithConstructorPolicyError.cs

@@ -0,0 +1,93 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using StructureMap.Pipeline;
+using Xunit;
+
+namespace StructureMap.Testing.Bugs
+{
+	public class OpenGenericDecoratorsWithConstructorPolicy_Error
+	{
+		[Fact]
+		public void applies_the_constructor_policy_to_decorated_instances()
+		{
+			var container = new Container(_ =>
+			{
+				_.For(typeof(ICmdHandler<>)).DecorateAllWith(typeof(CmdDecorator<>));
+				_.Policies.Add<TestLoggerConstructorPolicy>();
+				_.Scan(a =>
+				{
+					a.TheCallingAssembly();
+					a.ConnectImplementationsToTypesClosing(typeof(ICmdHandler<>));
+				});
+			});
+
+			Console.WriteLine(container.WhatDoIHave());
+
+			var handler = container.GetInstance<ICmdHandler<TestCmd>>();
+		}
+	}
+
+	public interface ICmdHandler<T>
+	{
+		void Handle(T cmd);
+	}
+
+	public class CmdHandler : ICmdHandler<TestCmd>
+	{
+		public void Handle(TestCmd cmd)
+		{
+		}
+	}
+
+	public class TestCmd { }
+
+	public class CmdDecorator<T> : ICmdHandler<T>
+	{
+		private readonly ICmdHandler<T> _decorated;
+		private readonly ITestLogger _logger;
+
+		public CmdDecorator(ICmdHandler<T> decorated, ITestLogger logger)
+		{
+			_decorated = decorated;
+			_logger = logger;
+		}
+
+		public void Handle(T cmd)
+		{
+			_decorated.Handle(cmd);
+		}
+	}
+
+	public interface ITestLogger
+	{
+	}
+
+	public class TestLogger
+	{
+	}
+
+	public class TestLoggerConstructorPolicy : ConfiguredInstancePolicy
+	{
+		protected override void apply(Type pluginType, IConfiguredInstance instance)
+		{
+			var param = instance.Constructor.GetParameters().FirstOrDefault(x => x.ParameterType == typeof(ITestLogger));
+			if (param != null)
+			{
+				var logger = new TestLogger();
+				instance.Dependencies.AddForConstructorParameter(param, logger);
+			}
+			else
+			{
+				// Try to inject an ILogger via public-settable property.
+				var prop = instance.SettableProperties().FirstOrDefault(x => x.PropertyType == typeof(ITestLogger));
+				if (prop != null)
+				{
+					var logger = new TestLogger();
+					instance.Dependencies.AddForProperty(prop, logger);
+				}
+			}
+		}
+	}
+}