Index: Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/TreeNodeInfos/PipingCalculationScenarioContextTreeNodeInfoTest.cs
===================================================================
diff -u -r7343a55e81349863d0e5d7bec5c7f0b3577adf65 -rd0553e74a8d5ff6534acf03faf4a8801c28bf7c0
--- Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/TreeNodeInfos/PipingCalculationScenarioContextTreeNodeInfoTest.cs	(.../PipingCalculationScenarioContextTreeNodeInfoTest.cs)	(revision 7343a55e81349863d0e5d7bec5c7f0b3577adf65)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Forms.Test/TreeNodeInfos/PipingCalculationScenarioContextTreeNodeInfoTest.cs	(.../PipingCalculationScenarioContextTreeNodeInfoTest.cs)	(revision d0553e74a8d5ff6534acf03faf4a8801c28bf7c0)
@@ -196,117 +196,117 @@
 //            Assert.IsTrue(canDrag);
 //        }
 //
+        [Test]
+        public void ContextMenuStrip_PipingCalculationWithoutOutput_ContextMenuItemClearOutputDisabled()
+        {
+            // Setup
+            var gui = mocks.StrictMock<IGui>();
+            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
+            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput());
+            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            var nodeData = new PipingCalculationScenarioContext(calculation,
+                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
+                                                        Enumerable.Empty<StochasticSoilModel>(),
+                                                        pipingFailureMechanismMock,
+                                                        assessmentSectionMock);
+
+            gui.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
+
+            mocks.ReplayAll();
+
+            plugin.Gui = gui;
+
+            // Call
+            var contextMenu = info.ContextMenuStrip(nodeData, null, treeViewControlMock);
+
+            // Assert
+            mocks.VerifyAll(); // Expect no calls on arguments
+
+            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 0, RingtoetsCommonFormsResources.Validate, RingtoetsCommonFormsResources.Validate_ToolTip, RingtoetsCommonFormsResources.ValidateIcon);
+            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 1, RingtoetsCommonFormsResources.Calculate, RingtoetsCommonFormsResources.Calculate_ToolTip, RingtoetsCommonFormsResources.CalculateIcon);
+            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 2, PipingFormsResources.Clear_output, PipingFormsResources.ClearOutput_No_output_to_clear, RingtoetsCommonFormsResources.ClearIcon, false);
+        }
+
+        [Test]
+        public void ContextMenuStrip_PipingCalculationWithOutput_ContextMenuItemClearOutputEnabled()
+        {
+            var gui = mocks.StrictMock<IGui>();
+            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
+            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput())
+            {
+                Output = new TestPipingOutput()
+            };
+            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            var nodeData = new PipingCalculationScenarioContext(calculation,
+                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
+                                                        Enumerable.Empty<StochasticSoilModel>(),
+                                                        pipingFailureMechanismMock,
+                                                        assessmentSectionMock);
+
+            gui.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
+
+            mocks.ReplayAll();
+
+            plugin.Gui = gui;
+
+            // Call
+            var contextMenu = info.ContextMenuStrip(nodeData, null, treeViewControlMock);
+
+            // Assert
+            mocks.VerifyAll(); // Expect no calls on arguments
+
+            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 0, RingtoetsCommonFormsResources.Validate, RingtoetsCommonFormsResources.Validate_ToolTip, RingtoetsCommonFormsResources.ValidateIcon);
+            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 1, RingtoetsCommonFormsResources.Calculate, RingtoetsCommonFormsResources.Calculate_ToolTip, RingtoetsCommonFormsResources.CalculateIcon);
+            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 2, PipingFormsResources.Clear_output, PipingFormsResources.Clear_output_ToolTip, RingtoetsCommonFormsResources.ClearIcon);
+        }
+
+        [Test]
+        public void ContextMenuStrip_Always_CallsContextMenuBuilderMethods()
+        {
+            // Setup
+            var gui = mocks.StrictMock<IGui>();
+            var menuBuilderMock = mocks.Stub<IContextMenuBuilder>();
+            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
+            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            var nodeData = new PipingCalculationScenarioContext(new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput()),
+                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
+                                                        Enumerable.Empty<StochasticSoilModel>(),
+                                                        pipingFailureMechanismMock,
+                                                        assessmentSectionMock);
+
+            menuBuilderMock.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddSeparator()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddRenameItem()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddDeleteItem()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddSeparator()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddImportItem()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddExportItem()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddSeparator()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddExpandAllItem()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddCollapseAllItem()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddSeparator()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.AddPropertiesItem()).Return(menuBuilderMock);
+            menuBuilderMock.Expect(mb => mb.Build()).Return(null);
+
+            gui.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(menuBuilderMock);
+
+            mocks.ReplayAll();
+
+            plugin.Gui = gui;
+
+            // Call
+            info.ContextMenuStrip(nodeData, null, treeViewControlMock);
+
+            // Assert
+            mocks.VerifyAll(); // Expect no calls on arguments
+        }
+
 //        [Test]
-//        public void ContextMenuStrip_PipingCalculationWithoutOutput_ContextMenuItemClearOutputDisabled()
-//        {
-//            // Setup
-//            var gui = mocks.StrictMock<IGui>();
-//            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
-//            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput());
-//            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
-//            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-//            var nodeData = new PipingCalculationScenarioContext(calculation,
-//                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
-//                                                        Enumerable.Empty<StochasticSoilModel>(),
-//                                                        pipingFailureMechanismMock,
-//                                                        assessmentSectionMock);
-//
-//            gui.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
-//
-//            mocks.ReplayAll();
-//
-//            plugin.Gui = gui;
-//
-//            // Call
-//            var contextMenu = info.ContextMenuStrip(nodeData, null, treeViewControlMock);
-//
-//            // Assert
-//            mocks.VerifyAll(); // Expect no calls on arguments
-//
-//            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 0, RingtoetsCommonFormsResources.Validate, RingtoetsCommonFormsResources.Validate_ToolTip, RingtoetsCommonFormsResources.ValidateIcon);
-//            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 1, RingtoetsCommonFormsResources.Calculate, RingtoetsCommonFormsResources.Calculate_ToolTip, RingtoetsCommonFormsResources.CalculateIcon);
-//            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 2, PipingFormsResources.Clear_output, PipingFormsResources.ClearOutput_No_output_to_clear, RingtoetsCommonFormsResources.ClearIcon, false);
-//        }
-//
-//        [Test]
-//        public void ContextMenuStrip_PipingCalculationWithOutput_ContextMenuItemClearOutputEnabled()
-//        {
-//            var gui = mocks.StrictMock<IGui>();
-//            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
-//            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput())
-//            {
-//                Output = new TestPipingOutput()
-//            };
-//            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
-//            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-//            var nodeData = new PipingCalculationScenarioContext(calculation,
-//                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
-//                                                        Enumerable.Empty<StochasticSoilModel>(),
-//                                                        pipingFailureMechanismMock,
-//                                                        assessmentSectionMock);
-//
-//            gui.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
-//
-//            mocks.ReplayAll();
-//
-//            plugin.Gui = gui;
-//
-//            // Call
-//            var contextMenu = info.ContextMenuStrip(nodeData, null, treeViewControlMock);
-//
-//            // Assert
-//            mocks.VerifyAll(); // Expect no calls on arguments
-//
-//            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 0, RingtoetsCommonFormsResources.Validate, RingtoetsCommonFormsResources.Validate_ToolTip, RingtoetsCommonFormsResources.ValidateIcon);
-//            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 1, RingtoetsCommonFormsResources.Calculate, RingtoetsCommonFormsResources.Calculate_ToolTip, RingtoetsCommonFormsResources.CalculateIcon);
-//            TestHelper.AssertContextMenuStripContainsItem(contextMenu, 2, PipingFormsResources.Clear_output, PipingFormsResources.Clear_output_ToolTip, RingtoetsCommonFormsResources.ClearIcon);
-//        }
-//
-//        [Test]
-//        public void ContextMenuStrip_Always_CallsContextMenuBuilderMethods()
-//        {
-//            // Setup
-//            var gui = mocks.StrictMock<IGui>();
-//            var menuBuilderMock = mocks.Stub<IContextMenuBuilder>();
-//            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
-//            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
-//            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-//            var nodeData = new PipingCalculationScenarioContext(new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput()),
-//                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
-//                                                        Enumerable.Empty<StochasticSoilModel>(),
-//                                                        pipingFailureMechanismMock,
-//                                                        assessmentSectionMock);
-//
-//            menuBuilderMock.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddCustomItem(null)).IgnoreArguments().Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddSeparator()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddRenameItem()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddDeleteItem()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddSeparator()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddImportItem()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddExportItem()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddSeparator()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddExpandAllItem()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddCollapseAllItem()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddSeparator()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.AddPropertiesItem()).Return(menuBuilderMock);
-//            menuBuilderMock.Expect(mb => mb.Build()).Return(null);
-//
-//            gui.Expect(cmp => cmp.Get(nodeData, treeViewControlMock)).Return(menuBuilderMock);
-//
-//            mocks.ReplayAll();
-//
-//            plugin.Gui = gui;
-//
-//            // Call
-//            info.ContextMenuStrip(nodeData, null, treeViewControlMock);
-//
-//            // Assert
-//            mocks.VerifyAll(); // Expect no calls on arguments
-//        }
-//
-//        [Test]
 //        [TestCase(true)]
 //        [TestCase(false)]
 //        public void CanRemove_ParentIsCalculationGroupWithCalculation_ReturnTrue(bool groupNameEditable)
@@ -495,227 +495,227 @@
 //            mocks.VerifyAll();
 //        }
 //
-//        [Test]
-//        public void GivenInvalidPipingCalculation_WhenCalculatingFromContextMenu_ThenPipingCalculationNotifiesObserversAndLogMessageAdded()
-//        {
-//            // Given
-//            var gui = mocks.DynamicMock<IGui>();
-//            var mainWindow = mocks.DynamicMock<IMainWindow>();
-//            var observer = mocks.StrictMock<IObserver>();
-//            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
-//            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput());
-//            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
-//            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-//            var pipingCalculationContext = new PipingCalculationScenarioContext(calculation,
-//                                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
-//                                                                        Enumerable.Empty<StochasticSoilModel>(),
-//                                                                        pipingFailureMechanismMock,
-//                                                                        assessmentSectionMock);
-//
-//            observer.Expect(o => o.UpdateObserver());
-//
-//            gui.Expect(cmp => cmp.Get(pipingCalculationContext, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
-//            gui.Expect(g => g.MainWindow).Return(mainWindow);
-//
-//            var expectedValidationMessageCount = 2; // No surfaceline or soil profile selected for calculation
-//            var calculateContextMenuItemIndex = 1;
-//
-//            mocks.ReplayAll();
-//
-//            plugin.Gui = gui;
-//
-//            calculation.Attach(observer);
-//
-//            var contextMenuAdapter = info.ContextMenuStrip(pipingCalculationContext, null, treeViewControlMock);
-//
-//            DialogBoxHandler = (name, wnd) =>
-//            {
-//                // Don't care about dialogs in this test.
-//            };
-//
-//            // When
-//            Action action = () => { contextMenuAdapter.Items[calculateContextMenuItemIndex].PerformClick(); };
-//
-//            // Then
-//            TestHelper.AssertLogMessages(action, messages =>
-//            {
-//                var msgs = messages.GetEnumerator();
-//                Assert.IsTrue(msgs.MoveNext());
-//                StringAssert.StartsWith("Validatie van 'Nieuwe berekening' gestart om: ", msgs.Current);
-//                for (int i = 0; i < expectedValidationMessageCount; i++)
-//                {
-//                    Assert.IsTrue(msgs.MoveNext());
-//                    StringAssert.StartsWith("Validatie mislukt: ", msgs.Current);
-//                }
-//                Assert.IsTrue(msgs.MoveNext());
-//                StringAssert.StartsWith("Validatie van 'Nieuwe berekening' beëindigd om: ", msgs.Current);
-//            });
-//            Assert.IsNull(calculation.Output);
-//
-//            mocks.VerifyAll();
-//        }
-//
-//        [Test]
-//        public void GivenInvalidPipingCalculation_WhenValidatingFromContextMenu_ThenLogMessageAddedAndNoNotifyObserver()
-//        {
-//            // Given
-//            var gui = mocks.DynamicMock<IGui>();
-//            var observer = mocks.StrictMock<IObserver>();
-//            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
-//            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput());
-//            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
-//            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-//            var pipingCalculationContext = new PipingCalculationScenarioContext(calculation,
-//                                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
-//                                                                        Enumerable.Empty<StochasticSoilModel>(),
-//                                                                        pipingFailureMechanismMock,
-//                                                                        assessmentSectionMock);
-//
-//            gui.Expect(cmp => cmp.Get(pipingCalculationContext, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
-//
-//            var expectedValidationMessageCount = 2; // No surfaceline or soil profile selected for calculation
-//            var expectedStatusMessageCount = 2;
-//            var expectedLogMessageCount = expectedValidationMessageCount + expectedStatusMessageCount;
-//
-//            var validateContextMenuItemIndex = 0;
-//            observer.Expect(o => o.UpdateObserver()).Repeat.Never();
-//
-//            mocks.ReplayAll();
-//
-//            plugin.Gui = gui;
-//
-//            calculation.Attach(observer);
-//
-//            var contextMenuAdapter = info.ContextMenuStrip(pipingCalculationContext, null, treeViewControlMock);
-//
-//            // When
-//            Action action = () => contextMenuAdapter.Items[validateContextMenuItemIndex].PerformClick();
-//
-//            // Then
-//            TestHelper.AssertLogMessagesCount(action, expectedLogMessageCount);
-//
-//            mocks.VerifyAll();
-//        }
-//
-//        [Test]
-//        public void GivenValidPipingCalculation_WhenCalculatingFromContextMenu_ThenPipingCalculationNotifiesObservers()
-//        {
-//            // Given
-//            var gui = mocks.DynamicMock<IGui>();
-//            var mainWindow = mocks.DynamicMock<IMainWindow>();
-//            var observer = mocks.StrictMock<IObserver>();
-//            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
-//            var calculateContextMenuItemIndex = 1;
-//            var calculation = PipingCalculationFactory.CreateCalculationWithValidInput();
-//            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
-//            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-//            var pipingCalculationContext = new PipingCalculationScenarioContext(calculation,
-//                                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
-//                                                                        Enumerable.Empty<StochasticSoilModel>(),
-//                                                                        pipingFailureMechanismMock,
-//                                                                        assessmentSectionMock);
-//
-//            gui.Expect(g => g.Get(pipingCalculationContext, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
-//            gui.Expect(g => g.MainWindow).Return(mainWindow);
-//
-//            observer.Expect(o => o.UpdateObserver());
-//
-//            mocks.ReplayAll();
-//
-//            plugin.Gui = gui;
-//
-//            calculation.Attach(observer);
-//
-//            var contextMenuAdapter = info.ContextMenuStrip(pipingCalculationContext, null, treeViewControlMock);
-//
-//            DialogBoxHandler = (name, wnd) =>
-//            {
-//                // Don't care about dialogs in this test.
-//            };
-//
-//            // When
-//            Action action = () => { contextMenuAdapter.Items[calculateContextMenuItemIndex].PerformClick(); };
-//
-//            // Then
-//            TestHelper.AssertLogMessages(action, messages =>
-//            {
-//                var msgs = messages.GetEnumerator();
-//                Assert.IsTrue(msgs.MoveNext());
-//                StringAssert.StartsWith("Validatie van 'Nieuwe berekening' gestart om: ", msgs.Current);
-//                Assert.IsTrue(msgs.MoveNext());
-//                StringAssert.StartsWith("Validatie van 'Nieuwe berekening' beëindigd om: ", msgs.Current);
-//
-//                Assert.IsTrue(msgs.MoveNext());
-//                StringAssert.StartsWith("Berekening van 'Nieuwe berekening' gestart om: ", msgs.Current);
-//                Assert.IsTrue(msgs.MoveNext());
-//                StringAssert.StartsWith("Berekening van 'Nieuwe berekening' beëindigd om: ", msgs.Current);
-//            });
-//            Assert.IsNotNull(calculation.Output);
-//
-//            mocks.VerifyAll();
-//        }
-//
-//        [Test]
-//        [TestCase(true)]
-//        [TestCase(false)]
-//        public void GivenPipingCalculationWithOutput_WhenClearingOutputFromContextMenu_ThenPipingCalculationOutputClearedAndNotified(bool confirm)
-//        {
-//            // Given
-//            var gui = mocks.DynamicMock<IGui>();
-//            var observer = mocks.StrictMock<IObserver>();
-//            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
-//            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput());
-//            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
-//            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
-//            var pipingCalculationContext = new PipingCalculationScenarioContext(calculation,
-//                                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
-//                                                                        Enumerable.Empty<StochasticSoilModel>(),
-//                                                                        pipingFailureMechanismMock,
-//                                                                        assessmentSectionMock);
-//
-//            gui.Expect(cmp => cmp.Get(pipingCalculationContext, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
-//
-//            int clearOutputItemPosition = 2;
-//            if (confirm)
-//            {
-//                observer.Expect(o => o.UpdateObserver());
-//            }
-//
-//            mocks.ReplayAll();
-//
-//            plugin.Gui = gui;
-//
-//            calculation.Output = new TestPipingOutput();
-//            calculation.Attach(observer);
-//
-//            var contextMenuAdapter = info.ContextMenuStrip(pipingCalculationContext, null, treeViewControlMock);
-//
-//            string messageBoxText = null, messageBoxTitle = null;
-//            DialogBoxHandler = (name, wnd) =>
-//            {
-//                var messageBox = new MessageBoxTester(wnd);
-//                messageBoxText = messageBox.Text;
-//                messageBoxTitle = messageBox.Title;
-//                if (confirm)
-//                {
-//                    messageBox.ClickOk();
-//                }
-//                else
-//                {
-//                    messageBox.ClickCancel();
-//                }
-//            };
-//
-//            // When
-//            contextMenuAdapter.Items[clearOutputItemPosition].PerformClick();
-//
-//            // Then
-//            Assert.AreNotEqual(confirm, calculation.HasOutput);
-//            Assert.AreEqual("Bevestigen", messageBoxTitle);
-//            Assert.AreEqual("Weet u zeker dat u de uitvoer van deze berekening wilt wissen?", messageBoxText);
-//            mocks.VerifyAll();
-//        }
+        [Test]
+        public void GivenInvalidPipingCalculation_WhenCalculatingFromContextMenu_ThenPipingCalculationNotifiesObserversAndLogMessageAdded()
+        {
+            // Given
+            var gui = mocks.DynamicMock<IGui>();
+            var mainWindow = mocks.DynamicMock<IMainWindow>();
+            var observer = mocks.StrictMock<IObserver>();
+            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
+            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput());
+            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            var pipingCalculationContext = new PipingCalculationScenarioContext(calculation,
+                                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
+                                                                        Enumerable.Empty<StochasticSoilModel>(),
+                                                                        pipingFailureMechanismMock,
+                                                                        assessmentSectionMock);
 
+            observer.Expect(o => o.UpdateObserver());
+
+            gui.Expect(cmp => cmp.Get(pipingCalculationContext, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
+            gui.Expect(g => g.MainWindow).Return(mainWindow);
+
+            var expectedValidationMessageCount = 2; // No surfaceline or soil profile selected for calculation
+            var calculateContextMenuItemIndex = 1;
+
+            mocks.ReplayAll();
+
+            plugin.Gui = gui;
+
+            calculation.Attach(observer);
+
+            var contextMenuAdapter = info.ContextMenuStrip(pipingCalculationContext, null, treeViewControlMock);
+
+            DialogBoxHandler = (name, wnd) =>
+            {
+                // Don't care about dialogs in this test.
+            };
+
+            // When
+            Action action = () => { contextMenuAdapter.Items[calculateContextMenuItemIndex].PerformClick(); };
+
+            // Then
+            TestHelper.AssertLogMessages(action, messages =>
+            {
+                var msgs = messages.GetEnumerator();
+                Assert.IsTrue(msgs.MoveNext());
+                StringAssert.StartsWith("Validatie van 'Nieuwe berekening' gestart om: ", msgs.Current);
+                for (int i = 0; i < expectedValidationMessageCount; i++)
+                {
+                    Assert.IsTrue(msgs.MoveNext());
+                    StringAssert.StartsWith("Validatie mislukt: ", msgs.Current);
+                }
+                Assert.IsTrue(msgs.MoveNext());
+                StringAssert.StartsWith("Validatie van 'Nieuwe berekening' beëindigd om: ", msgs.Current);
+            });
+            Assert.IsNull(calculation.Output);
+
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void GivenInvalidPipingCalculation_WhenValidatingFromContextMenu_ThenLogMessageAddedAndNoNotifyObserver()
+        {
+            // Given
+            var gui = mocks.DynamicMock<IGui>();
+            var observer = mocks.StrictMock<IObserver>();
+            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
+            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput());
+            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            var pipingCalculationContext = new PipingCalculationScenarioContext(calculation,
+                                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
+                                                                        Enumerable.Empty<StochasticSoilModel>(),
+                                                                        pipingFailureMechanismMock,
+                                                                        assessmentSectionMock);
+
+            gui.Expect(cmp => cmp.Get(pipingCalculationContext, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
+
+            var expectedValidationMessageCount = 2; // No surfaceline or soil profile selected for calculation
+            var expectedStatusMessageCount = 2;
+            var expectedLogMessageCount = expectedValidationMessageCount + expectedStatusMessageCount;
+
+            var validateContextMenuItemIndex = 0;
+            observer.Expect(o => o.UpdateObserver()).Repeat.Never();
+
+            mocks.ReplayAll();
+
+            plugin.Gui = gui;
+
+            calculation.Attach(observer);
+
+            var contextMenuAdapter = info.ContextMenuStrip(pipingCalculationContext, null, treeViewControlMock);
+
+            // When
+            Action action = () => contextMenuAdapter.Items[validateContextMenuItemIndex].PerformClick();
+
+            // Then
+            TestHelper.AssertLogMessagesCount(action, expectedLogMessageCount);
+
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        public void GivenValidPipingCalculation_WhenCalculatingFromContextMenu_ThenPipingCalculationNotifiesObservers()
+        {
+            // Given
+            var gui = mocks.DynamicMock<IGui>();
+            var mainWindow = mocks.DynamicMock<IMainWindow>();
+            var observer = mocks.StrictMock<IObserver>();
+            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
+            var calculateContextMenuItemIndex = 1;
+            var calculation = PipingCalculationFactory.CreateCalculationWithValidInput();
+            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            var pipingCalculationContext = new PipingCalculationScenarioContext(calculation,
+                                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
+                                                                        Enumerable.Empty<StochasticSoilModel>(),
+                                                                        pipingFailureMechanismMock,
+                                                                        assessmentSectionMock);
+
+            gui.Expect(g => g.Get(pipingCalculationContext, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
+            gui.Expect(g => g.MainWindow).Return(mainWindow);
+
+            observer.Expect(o => o.UpdateObserver());
+
+            mocks.ReplayAll();
+
+            plugin.Gui = gui;
+
+            calculation.Attach(observer);
+
+            var contextMenuAdapter = info.ContextMenuStrip(pipingCalculationContext, null, treeViewControlMock);
+
+            DialogBoxHandler = (name, wnd) =>
+            {
+                // Don't care about dialogs in this test.
+            };
+
+            // When
+            Action action = () => { contextMenuAdapter.Items[calculateContextMenuItemIndex].PerformClick(); };
+
+            // Then
+            TestHelper.AssertLogMessages(action, messages =>
+            {
+                var msgs = messages.GetEnumerator();
+                Assert.IsTrue(msgs.MoveNext());
+                StringAssert.StartsWith("Validatie van 'Nieuwe berekening' gestart om: ", msgs.Current);
+                Assert.IsTrue(msgs.MoveNext());
+                StringAssert.StartsWith("Validatie van 'Nieuwe berekening' beëindigd om: ", msgs.Current);
+
+                Assert.IsTrue(msgs.MoveNext());
+                StringAssert.StartsWith("Berekening van 'Nieuwe berekening' gestart om: ", msgs.Current);
+                Assert.IsTrue(msgs.MoveNext());
+                StringAssert.StartsWith("Berekening van 'Nieuwe berekening' beëindigd om: ", msgs.Current);
+            });
+            Assert.IsNotNull(calculation.Output);
+
+            mocks.VerifyAll();
+        }
+
+        [Test]
+        [TestCase(true)]
+        [TestCase(false)]
+        public void GivenPipingCalculationWithOutput_WhenClearingOutputFromContextMenu_ThenPipingCalculationOutputClearedAndNotified(bool confirm)
+        {
+            // Given
+            var gui = mocks.DynamicMock<IGui>();
+            var observer = mocks.StrictMock<IObserver>();
+            var treeViewControlMock = mocks.StrictMock<TreeViewControl>();
+            var calculation = new PipingCalculationScenario(new GeneralPipingInput(), new NormProbabilityPipingInput());
+            var pipingFailureMechanismMock = mocks.StrictMock<PipingFailureMechanism>();
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            var pipingCalculationContext = new PipingCalculationScenarioContext(calculation,
+                                                                        Enumerable.Empty<RingtoetsPipingSurfaceLine>(),
+                                                                        Enumerable.Empty<StochasticSoilModel>(),
+                                                                        pipingFailureMechanismMock,
+                                                                        assessmentSectionMock);
+
+            gui.Expect(cmp => cmp.Get(pipingCalculationContext, treeViewControlMock)).Return(new CustomItemsOnlyContextMenuBuilder());
+
+            int clearOutputItemPosition = 2;
+            if (confirm)
+            {
+                observer.Expect(o => o.UpdateObserver());
+            }
+
+            mocks.ReplayAll();
+
+            plugin.Gui = gui;
+
+            calculation.Output = new TestPipingOutput();
+            calculation.Attach(observer);
+
+            var contextMenuAdapter = info.ContextMenuStrip(pipingCalculationContext, null, treeViewControlMock);
+
+            string messageBoxText = null, messageBoxTitle = null;
+            DialogBoxHandler = (name, wnd) =>
+            {
+                var messageBox = new MessageBoxTester(wnd);
+                messageBoxText = messageBox.Text;
+                messageBoxTitle = messageBox.Title;
+                if (confirm)
+                {
+                    messageBox.ClickOk();
+                }
+                else
+                {
+                    messageBox.ClickCancel();
+                }
+            };
+
+            // When
+            contextMenuAdapter.Items[clearOutputItemPosition].PerformClick();
+
+            // Then
+            Assert.AreNotEqual(confirm, calculation.HasOutput);
+            Assert.AreEqual("Bevestigen", messageBoxTitle);
+            Assert.AreEqual("Weet u zeker dat u de uitvoer van deze berekening wilt wissen?", messageBoxText);
+            mocks.VerifyAll();
+        }
+
         /// <summary>
         /// Creates a new instance of <see cref="PipingFailureMechanism"/> with sections and a surface line.
         /// </summary>