Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsFailureMechanismTest.cs
===================================================================
diff -u -raaf4928016ae31ac440a8323c0928c6a26f59598 -r255ffcdbfd4ffff68c336ad9922e6196636c2803
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsFailureMechanismTest.cs	(.../GrassCoverErosionInwardsFailureMechanismTest.cs)	(revision aaf4928016ae31ac440a8323c0928c6a26f59598)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsFailureMechanismTest.cs	(.../GrassCoverErosionInwardsFailureMechanismTest.cs)	(revision 255ffcdbfd4ffff68c336ad9922e6196636c2803)
@@ -22,6 +22,7 @@
 using System.Linq;
 using Core.Common.Base.Geometry;
 using NUnit.Framework;
+using Rhino.Mocks;
 using Ringtoets.Common.Data.Calculation;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.GrassCoverErosionInwards.Data.Properties;
@@ -92,5 +93,35 @@
             Assert.AreEqual(0, failureMechanism.Sections.Count());
             Assert.AreEqual(0, failureMechanism.SectionResults.Count());
         }
+
+        [Test]
+        public void Calculations_MultipleChildrenAdded_ReturnGrassCoverErosionInwardsCalculations()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var failureMechanism = new GrassCoverErosionInwardsFailureMechanism
+            {
+                CalculationsGroup =
+                {
+                    Children =
+                    {
+                        new CalculationGroup(),
+                        new GrassCoverErosionInwardsCalculation(new GeneralGrassCoverErosionInwardsInput(), new GeneralNormProbabilityInput()),
+                        mocks.StrictMock<ICalculation>(),
+                        new GrassCoverErosionInwardsCalculation(new GeneralGrassCoverErosionInwardsInput(), new GeneralNormProbabilityInput())
+                    }
+                }
+            };
+
+            mocks.ReplayAll();
+
+            // Call
+            var calculations = failureMechanism.Calculations.ToList();
+
+            // Assert
+            Assert.AreEqual(2, calculations.Count);
+            Assert.IsTrue(calculations.All(c => c is GrassCoverErosionInwardsCalculation));
+            mocks.VerifyAll();
+        }
     }
 }
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