public void UpdateObserver_ReferenceLineUpdated_MapDataUpdated() { // Setup var referenceLine = new ReferenceLine(); referenceLine.SetGeometry(new List <Point2D> { new Point2D(1.0, 2.0), new Point2D(2.0, 1.0) }); var assessmentSection = new AssessmentSectionStub { ReferenceLine = referenceLine }; AssessmentSectionReferenceLineView view = ShowCalculationsView(assessmentSection); IMapControl map = ((RiskeerMapControl)view.Controls[0]).MapControl; var mocks = new MockRepository(); IObserver observer = AttachReferenceLineMapDataObserver(mocks, map.Data.Collection); observer.Expect(obs => obs.UpdateObserver()); mocks.ReplayAll(); MapData referenceLineMapData = map.Data.Collection.ElementAt(referenceLineIndex); // Precondition MapDataTestHelper.AssertReferenceLineMapData(referenceLine, referenceLineMapData); Assert.IsTrue(referenceLineMapData.IsVisible); // Call referenceLine.SetGeometry(new List <Point2D> { new Point2D(2.0, 5.0), new Point2D(4.0, 3.0) }); referenceLine.NotifyObservers(); // Assert MapDataTestHelper.AssertReferenceLineMapData(referenceLine, referenceLineMapData); Assert.IsTrue(referenceLineMapData.IsVisible); mocks.VerifyAll(); }