Index: Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Forms.Test/PropertyClasses/StabilityStoneCoverFailurePathPropertiesTest.cs
===================================================================
diff -u -r4eefa7202e554b16c2ad9304012fcf421b375141 -re9087dd9bd4151971341dd73f8a886a8ffae24a7
--- Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Forms.Test/PropertyClasses/StabilityStoneCoverFailurePathPropertiesTest.cs	(.../StabilityStoneCoverFailurePathPropertiesTest.cs)	(revision 4eefa7202e554b16c2ad9304012fcf421b375141)
+++ Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Forms.Test/PropertyClasses/StabilityStoneCoverFailurePathPropertiesTest.cs	(.../StabilityStoneCoverFailurePathPropertiesTest.cs)	(revision e9087dd9bd4151971341dd73f8a886a8ffae24a7)
@@ -120,10 +120,15 @@
         [TestCase(0.0)]
         [TestCase(-1.0)]
         [TestCase(-20.0)]
-        public void N_SetInvalidValue_ThrowsArgumentOutOfRangeException(double newN)
+        public void N_SetInvalidValue_ThrowsArgumentOutOfRangeExceptionNoNotifications(double newN)
         {
             // Setup
+            var mocks = new MockRepository();
+            var observer = mocks.StrictMock<IObserver>();
+            mocks.ReplayAll();
+
             var failureMechanism = new StabilityStoneCoverFailureMechanism();
+            failureMechanism.Attach(observer);
 
             var properties = new StabilityStoneCoverFailurePathProperties(failureMechanism);
 
@@ -133,6 +138,8 @@
             // Assert
             const string expectedMessage = "De waarde voor 'N' moet in het bereik [1,00, 20,00] liggen.";
             TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentOutOfRangeException>(Call, expectedMessage);
+
+            mocks.VerifyAll();
         }
 
         [Test]