Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresInputTest.cs
===================================================================
diff -u -rc1bb09f8fce943d069316e4d9bac7c85aca50c58 -r1fd2033b78aa540d01635bcf993080e5fe2437bd
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresInputTest.cs	(.../ClosingStructuresInputTest.cs)	(revision c1bb09f8fce943d069316e4d9bac7c85aca50c58)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresInputTest.cs	(.../ClosingStructuresInputTest.cs)	(revision 1fd2033b78aa540d01635bcf993080e5fe2437bd)
@@ -382,7 +382,7 @@
             // Setup
             var random = new Random(22);
             var input = new ClosingStructuresInput();
-            var mean = (RoundedDouble) (0.01 + random.NextDouble());
+            RoundedDouble mean = random.NextRoundedDouble(0.01, 1.0);
             var expectedDistribution = new NormalDistribution(2)
             {
                 Mean = mean,
@@ -391,7 +391,7 @@
             var distributionToSet = new NormalDistribution(5)
             {
                 Mean = mean,
-                StandardDeviation = (RoundedDouble) random.NextDouble()
+                StandardDeviation = random.NextRoundedDouble()
             };
 
             // Call