Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsInputTest.cs
===================================================================
diff -u -r226f89e7baa61dd7a95c411373c46c0a8f6e73ea -r332c90b82508a9b4386de8736381bf4945d50cc7
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsInputTest.cs	(.../MacroStabilityInwardsInputTest.cs)	(revision 226f89e7baa61dd7a95c411373c46c0a8f6e73ea)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.Test/MacroStabilityInwardsInputTest.cs	(.../MacroStabilityInwardsInputTest.cs)	(revision 332c90b82508a9b4386de8736381bf4945d50cc7)
@@ -185,7 +185,7 @@
             double piezometricHeadPhreaticLine2Inwards = random.NextDouble();
             double tangentLineZTop = random.NextDouble();
             double tangentLineZBottom = random.NextDouble();
-            int tangentLineNumber = random.Next();
+            int tangentLineNumber = random.Next(1, 51);
 
             // Call
             var input = new MacroStabilityInwardsInput