Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Plugin.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -re98196d2643883a44bc503eae24b005474983074 -ra9eeb49c5f36afd8387f965a43e6caa90949feb9
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Plugin.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs	(.../GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs)	(revision e98196d2643883a44bc503eae24b005474983074)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Plugin.Test/TreeNodeInfos/GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs	(.../GrassCoverErosionInwardsCalculationGroupContextTreeNodeInfoTest.cs)	(revision a9eeb49c5f36afd8387f965a43e6caa90949feb9)
@@ -373,7 +373,7 @@
                 }
             }
         }
-        
+
         [Test]
         public void ContextMenuStrip_NoHydraulicBoundaryDatabase_ContextMenuItemCalculateAllDisabledAndTooltipSet()
         {
@@ -481,6 +481,58 @@
         }
 
         [Test]
+        public void ContextMenuStrip_FailureMechanismContributionZero_ContextMenuItemCalculateAllDisabledAndTooltipSet()
+        {
+            // Setup
+            var group = new CalculationGroup
+            {
+                Children =
+                {
+                    new GrassCoverErosionInwardsCalculation()
+                }
+            };
+
+            string validFilePath = Path.Combine(testDataPath, "complete.sqlite");
+
+            var hydraulicBoundaryDatabase = new HydraulicBoundaryDatabase
+            {
+                FilePath = validFilePath,
+                Version = "1.0"
+            };
+
+            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
+
+            failureMechanism.CalculationsGroup.Children.Add(new GrassCoverErosionInwardsCalculation());
+
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            assessmentSectionMock.Stub(asm => asm.HydraulicBoundaryDatabase).Return(hydraulicBoundaryDatabase);
+
+            var nodeData = new GrassCoverErosionInwardsCalculationGroupContext(group,
+                                                                               failureMechanism,
+                                                                               assessmentSectionMock);
+            var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
+
+            using (var treeViewControl = new TreeViewControl())
+            {
+                guiMock.Expect(g => g.Get(nodeData, treeViewControl)).Return(menuBuilder);
+                guiMock.Stub(cmp => cmp.ViewCommands).Return(mocks.Stub<IViewCommands>());
+
+                mocks.ReplayAll();
+
+                // Call
+                using (ContextMenuStrip menu = info.ContextMenuStrip(nodeData, null, treeViewControl))
+                {
+                    // Assert
+                    TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuCalculateAllIndexRootGroup,
+                                                                  "Alles be&rekenen",
+                                                                  "De bijdrage van dit toetsspoor is nul.",
+                                                                  RingtoetsCommonFormsResources.CalculateAllIcon,
+                                                                  false);
+                }
+            }
+        }
+
+        [Test]
         public void ContextMenuStrip_AllRequiredInputSet_ContextMenuItemCalculateAllEnabled()
         {
             // Setup
@@ -637,6 +689,61 @@
         }
 
         [Test]
+        public void ContextMenuStrip_FailureMechanismContributionZero_ContextMenuItemValidateAllDisabledAndTooltipSet()
+        {
+            // Setup
+            var group = new CalculationGroup
+            {
+                Children =
+                {
+                    new GrassCoverErosionInwardsCalculation()
+                }
+            };
+
+            string validFilePath = Path.Combine(testDataPath, "complete.sqlite");
+
+            var hydraulicBoundaryDatabase = new HydraulicBoundaryDatabase
+            {
+                FilePath = validFilePath,
+                Version = "1.0"
+            };
+
+            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism();
+            failureMechanism.AddSection(new FailureMechanismSection("test", new[]
+            {
+                new Point2D(0, 0)
+            }));
+            failureMechanism.CalculationsGroup.Children.Add(new GrassCoverErosionInwardsCalculation());
+
+            var assessmentSectionMock = mocks.StrictMock<IAssessmentSection>();
+            assessmentSectionMock.Stub(asm => asm.HydraulicBoundaryDatabase).Return(hydraulicBoundaryDatabase);
+
+            var nodeData = new GrassCoverErosionInwardsCalculationGroupContext(group,
+                                                                               failureMechanism,
+                                                                               assessmentSectionMock);
+            var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
+
+            using (var treeViewControl = new TreeViewControl())
+            {
+                guiMock.Expect(g => g.Get(nodeData, treeViewControl)).Return(menuBuilder);
+                guiMock.Stub(cmp => cmp.ViewCommands).Return(mocks.Stub<IViewCommands>());
+
+                mocks.ReplayAll();
+
+                // Call
+                using (ContextMenuStrip menu = info.ContextMenuStrip(nodeData, null, treeViewControl))
+                {
+                    // Assert
+                    TestHelper.AssertContextMenuStripContainsItem(menu, contextMenuValidateAllIndexRootGroup,
+                                                                  "Alles &valideren",
+                                                                  "De bijdrage van dit toetsspoor is nul.",
+                                                                  RingtoetsCommonFormsResources.ValidateAllIcon,
+                                                                  false);
+                }
+            }
+        }
+
+        [Test]
         public void ContextMenuStrip_AllRequiredInputSet_ContextMenuItemValidateAllEnabled()
         {
             // Setup