Index: Core/Common/test/Core.Common.Controls.Test/PresentationObjects/ObservableWrappedObjectContextBaseTest.cs
===================================================================
diff -u -r817593259f188dfd979b6fa7a266ca87093b652f -r7eb571b4d12d03ff53c6d66b7a596160b37fca9e
--- Core/Common/test/Core.Common.Controls.Test/PresentationObjects/ObservableWrappedObjectContextBaseTest.cs	(.../ObservableWrappedObjectContextBaseTest.cs)	(revision 817593259f188dfd979b6fa7a266ca87093b652f)
+++ Core/Common/test/Core.Common.Controls.Test/PresentationObjects/ObservableWrappedObjectContextBaseTest.cs	(.../ObservableWrappedObjectContextBaseTest.cs)	(revision 7eb571b4d12d03ff53c6d66b7a596160b37fca9e)
@@ -49,25 +49,14 @@
         }
 
         [Test]
-        public void Observers_WhenAttachingObserver_ContainsExpectedObserver()
+        public void Observers_ValidWrappedObjectInstance_ReturnsObserversOfWrappedObject()
         {
             // Setup
-            var mocks = new MockRepository();
             var sourceObject = new SimpleObservable(new object());
             var context = new SimpleObservableWrappedObjectContext(sourceObject);
 
-            var observer = mocks.Stub<IObserver>();
-            context.Attach(observer);
-
-            mocks.ReplayAll();
-
-            // Call
-            IEnumerable<IObserver> observers = context.Observers;
-
-            // Assert
-            Assert.AreSame(observer, observers.Single());
-
-            mocks.VerifyAll();
+            // Call & Assert
+            Assert.AreSame(sourceObject.Observers, context.Observers);
         }
 
         [Test]
Index: Core/Common/test/Core.Common.Data.TestUtil.Test/CoreCloneAssertTest.cs
===================================================================
diff -u -r817593259f188dfd979b6fa7a266ca87093b652f -r7eb571b4d12d03ff53c6d66b7a596160b37fca9e
--- Core/Common/test/Core.Common.Data.TestUtil.Test/CoreCloneAssertTest.cs	(.../CoreCloneAssertTest.cs)	(revision 817593259f188dfd979b6fa7a266ca87093b652f)
+++ Core/Common/test/Core.Common.Data.TestUtil.Test/CoreCloneAssertTest.cs	(.../CoreCloneAssertTest.cs)	(revision 7eb571b4d12d03ff53c6d66b7a596160b37fca9e)
@@ -246,7 +246,7 @@
         }
 
         [Test]
-        public void AreEnumerationClones_ObservableObjectDifferentObservers_DoesNotThrow()
+        public void AreEnumerationClones_ObservableListDifferentObservers_DoesNotThrow()
         {
             // Setup
             var cloneableObservableList = new CloneableObservableList<object>();
@@ -263,17 +263,17 @@
         }
 
         [Test]
-        public void AreEnumerationClones_ObservableObjectSameObservers_ThrowsAssertionException()
+        public void AreEnumerationClones_ObservableListSameObservers_ThrowsAssertionException()
         {
             // Setup
-            var cloneableObservableList = new TestCloneableObservableList<object>();
-            var clonedCloneableObservableList = (TestCloneableObservableList<object>) cloneableObservableList.Clone();
+            var observableList = new TestObservableList<object>();
+            var clonedObservableList = (TestObservableList<object>) observableList.Clone();
 
             // Precondition
-            Assert.IsTrue(ReferenceEquals(cloneableObservableList.Observers, clonedCloneableObservableList.Observers));
+            Assert.IsTrue(ReferenceEquals(observableList.Observers, clonedObservableList.Observers));
 
             // Call
-            TestDelegate test = () => CoreCloneAssert.AreEnumerationClones(cloneableObservableList, clonedCloneableObservableList, (original, clone) => {});
+            TestDelegate test = () => CoreCloneAssert.AreEnumerationClones(observableList, clonedObservableList, (original, clone) => {});
 
             // Assert
             Assert.Throws<AssertionException>(test);
@@ -287,9 +287,9 @@
             }
         }
 
-        private class TestCloneableObservableList<T> : CloneableObservableList<T>
+        private class TestObservableList<T> : ObservableList<T>, ICloneable
         {
-            public new object Clone()
+            public object Clone()
             {
                 return MemberwiseClone();
             }