Adding tests to assert Autofac's expected behavior

--HG--
branch : 1.x

src/Orchard.Tests/Environment/OrchardStarterTests.cs

@@ -1,4 +1,6 @@
-using System.Web.Mvc;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web.Mvc;
 using Autofac;
 using NUnit.Framework;
 using Orchard.Environment;
@@ -11,5 +13,34 @@ namespace Orchard.Tests.Environment {
             var host = OrchardStarter.CreateHost(b => b.RegisterInstance(new ControllerBuilder()));
             Assert.That(host, Is.TypeOf<DefaultOrchardHost>());
         }
+
+        [Test]
+        public void ContainerResolvesServicesInSameOrderTheyAreRegistered() {
+            var container = OrchardStarter.CreateHostContainer(builder => {
+                builder.RegisterType<Component1>().As<IServiceA>();
+                builder.RegisterType<Component2>().As<IServiceA>();
+            });
+            var services = container.Resolve<IEnumerable<IServiceA>>();
+            Assert.That(services.Count(), Is.EqualTo(2));
+            Assert.That(services.First(), Is.TypeOf<Component1>());
+            Assert.That(services.Last(), Is.TypeOf<Component2>());
+        }
+
+        [Test]
+        public void MostRecentlyRegisteredServiceReturnsFromSingularResolve() {
+            var container = OrchardStarter.CreateHostContainer(builder => {
+                builder.RegisterType<Component1>().As<IServiceA>();
+                builder.RegisterType<Component2>().As<IServiceA>();
+            });
+            var service = container.Resolve<IServiceA>();
+            Assert.That(service, Is.Not.Null);
+            Assert.That(service, Is.TypeOf<Component2>());
+        }
+
+        public interface IServiceA {}
+
+        public class Component1 : IServiceA {}
+
+        public class Component2 : IServiceA {}
     }
-}
+}