Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismTest.cs
===================================================================
diff -u -r10779bb6a6db2d00f4627b2bc190e7e35e1fee3e -r0c05978e0502e47090bffa6f5716c91dae3e7150
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismTest.cs	(.../PipingFailureMechanismTest.cs)	(revision 10779bb6a6db2d00f4627b2bc190e7e35e1fee3e)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/PipingFailureMechanismTest.cs	(.../PipingFailureMechanismTest.cs)	(revision 0c05978e0502e47090bffa6f5716c91dae3e7150)
@@ -33,6 +33,7 @@
             CollectionAssert.IsEmpty(piping.SurfaceLines);
             Assert.IsInstanceOf<ObservableList<RingtoetsPipingSurfaceLine>>(piping.SurfaceLines);
             CollectionAssert.IsEmpty(piping.SoilProfiles);
+            Assert.IsInstanceOf<ObservableList<PipingSoilProfile>>(piping.SoilProfiles);
             Assert.AreEqual("Berekeningen", piping.CalculationsGroup.Name);
             Assert.AreEqual(1, piping.CalculationsGroup.Children.Count);
             Assert.IsInstanceOf<PipingCalculation>(piping.CalculationsGroup.Children.First());