Index: Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/DerivedPipingInputTest.cs
===================================================================
diff -u -r686466dda6406ee2c7fb1f33faa60494878b1fc8 -r8a442db31848f5668714dbf441b393213178c775
--- Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/DerivedPipingInputTest.cs	(.../DerivedPipingInputTest.cs)	(revision 686466dda6406ee2c7fb1f33faa60494878b1fc8)
+++ Ringtoets/Piping/test/Ringtoets.Piping.Data.Test/DerivedPipingInputTest.cs	(.../DerivedPipingInputTest.cs)	(revision 8a442db31848f5668714dbf441b393213178c775)
@@ -149,11 +149,10 @@
         }
 
         [Test]
-        public void EffectiveThicknessCoverageLayer_MeanSetSoilProfileSetToNull_ThicknessCoverageLayerNaN()
+        public void EffectiveThicknessCoverageLayer_SoilProfileSetToNull_ThicknessCoverageLayerNaN()
         {
             // Setup
             PipingInput input = PipingInputFactory.CreateInputWithAquiferAndCoverageLayer();
-            input.ThicknessCoverageLayer.Mean = new RoundedDouble(2, new Random(21).NextDouble() + 1);
             var derivedInput = new DerivedPipingInput(input);
 
             input.StochasticSoilProfile = null;
@@ -280,11 +279,10 @@
         }
 
         [Test]
-        public void ThicknessCoverageLayer_MeanSetSoilProfileSetToNull_ThicknessCoverageLayerNaN()
+        public void ThicknessCoverageLayer_SoilProfileSetToNull_ThicknessCoverageLayerNaN()
         {
             // Setup
             PipingInput input = PipingInputFactory.CreateInputWithAquiferAndCoverageLayer();
-            input.ThicknessCoverageLayer.Mean = new RoundedDouble(2, new Random(21).NextDouble() + 1);
             var derivedInput = new DerivedPipingInput(input);
 
             input.StochasticSoilProfile = null;