Fix unit tests

Add stub for "ActiveExtensions_Obsolete"

--HG--
branch : dev

src/Orchard.Tests/Environment/DefaultOrchardHostTests.cs

@@ -90,23 +90,32 @@ namespace Orchard.Tests.Environment {
                 yield return ext;
             }
 
+            public IEnumerable<ExtensionEntry> ActiveExtensions_Obsolete() {
+                var feature = FrameworkFeature(new FeatureDescriptor { Name = "Orchard.Framework" });
+                yield return new ExtensionEntry {
+                    Assembly = feature.ExportedTypes.First().Assembly,
+                    Descriptor = AvailableExtensions().First(),
+                    ExportedTypes = feature.ExportedTypes
+                };
+            }
+
             public IEnumerable<Feature> LoadFeatures(IEnumerable<FeatureDescriptor> featureDescriptors) {
                 foreach (var descriptor in featureDescriptors) {
                     if (descriptor.Name == "Orchard.Framework") {
-                        yield return new Feature {
+                        yield return FrameworkFeature(descriptor);
-                            Descriptor = descriptor,
-                            ExportedTypes = new[] {
-                            typeof (TestDependency),
-                            typeof (TestSingletonDependency),
-                            typeof (TestTransientDependency),
-                        }
-                        };
                     }
                 }
             }
 
-            public IEnumerable<ExtensionEntry> ActiveExtensions_Obsolete() {
+            private Feature FrameworkFeature(FeatureDescriptor descriptor) {
-                throw new NotImplementedException();
+                return new Feature {
+                    Descriptor = descriptor,
+                    ExportedTypes = new[] {
+                        typeof (TestDependency),
+                        typeof (TestSingletonDependency),
+                        typeof (TestTransientDependency),
+                    }
+                };
             }
 
             public void InstallExtension(string extensionType, HttpPostedFileBase extensionBundle) {