Index: Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/TreeNodeInfos/HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs
===================================================================
diff -u -rf1bf048f691ca575f22e8807911ace0338fa425d -rf2be29fe8c407a4f32cb1bfcbaf4816c1f99c83f
--- Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/TreeNodeInfos/HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs	(.../HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs)	(revision f1bf048f691ca575f22e8807911ace0338fa425d)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Forms.Test/TreeNodeInfos/HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs	(.../HydraulicBoundaryDatabaseContextTreeNodeInfoTest.cs)	(revision f2be29fe8c407a4f32cb1bfcbaf4816c1f99c83f)
@@ -394,14 +394,11 @@
 
         [Test]
         [RequiresSTA]
-        public void GivenFilePathIsSet_WhenOpeningSameFileFromContextMenu_ThenCalculationsWillNotBeClearedAndLocationsWillBeImported()
+        public void GivenFilePathIsSet_WhenOpeningSameFileFromContextMenu_ThenCalculationsWillNotBeClearedAndNoNotifyObservers()
         {
             // Given
             string validFile = Path.Combine(testDataPath, "HRD dutch coast south.sqlite");
             IObserver assessmentObserver = mocks.StrictMock<IObserver>();
-            assessmentObserver.Expect(o => o.UpdateObserver());
-            IObserver observer = mocks.StrictMock<IObserver>();
-
             int contextMenuImportHydraulicBoundaryDatabaseIndex = 0;
 
             AssessmentSection assessmentSection = new AssessmentSection(AssessmentSectionComposition.Dike);
@@ -424,8 +421,6 @@
                 Output = pipingOutput
             };
 
-            pipingCalculation.Attach(observer);
-
             assessmentSection.PipingFailureMechanism.CalculationsGroup.Children.Add(pipingCalculation);
 
             // Precondition