Index: Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsFailureMechanismTest.cs
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diff -u -rfec99b77571cc0cf37b60f5ca257394714fde1d7 -rf5e1194ee412e86277cee388a75c39db189f2b3e
--- Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsFailureMechanismTest.cs	(.../GrassCoverErosionInwardsFailureMechanismTest.cs)	(revision fec99b77571cc0cf37b60f5ca257394714fde1d7)
+++ Ringtoets/GrassCoverErosionInwards/test/Ringtoets.GrassCoverErosionInwards.Data.Test/GrassCoverErosionInwardsFailureMechanismTest.cs	(.../GrassCoverErosionInwardsFailureMechanismTest.cs)	(revision f5e1194ee412e86277cee388a75c39db189f2b3e)
@@ -47,6 +47,7 @@
 
             // assert
             Assert.IsInstanceOf<FailureMechanismBase>(grassCoverErosionInwardsFailureMechanism);
+            Assert.IsInstanceOf<ICalculatableFailureMechanism>(grassCoverErosionInwardsFailureMechanism);
             Assert.AreEqual(Resources.GrassCoverErosionInwardsFailureMechanism_DisplayName, grassCoverErosionInwardsFailureMechanism.Name);
             Assert.AreEqual(Resources.GrassCoverErosionInwardsFailureMechanism_DisplayCode, grassCoverErosionInwardsFailureMechanism.Code);
             CollectionAssert.IsEmpty(grassCoverErosionInwardsFailureMechanism.Calculations);