Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsInputValidatorTest.cs
===================================================================
diff -u -r5c7faf8283e49113a2c7b9e17086148a99f13d2e -rd603616dc14b48d1558275495bb59952e22b351f
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsInputValidatorTest.cs	(.../MacroStabilityInwardsInputValidatorTest.cs)	(revision 5c7faf8283e49113a2c7b9e17086148a99f13d2e)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsInputValidatorTest.cs	(.../MacroStabilityInwardsInputValidatorTest.cs)	(revision d603616dc14b48d1558275495bb59952e22b351f)
@@ -602,6 +602,44 @@
                             }))
                         }, new MacroStabilityInwardsPreconsolidationStress[0]))
                 .SetName("X further than x of surfaceLine");
+
+            yield return new TestCaseData(
+                    new MacroStabilityInwardsSoilProfile2D(
+                        "profile",
+                        new[]
+                        {
+                            new MacroStabilityInwardsSoilLayer2D(new Ring(new[]
+                            {
+                                new Point2D(0.2, 0),
+                                new Point2D(0.0, 10),
+                                new Point2D(0.1, 20)
+                            })),
+                            new MacroStabilityInwardsSoilLayer2D(new Ring(new[]
+                            {
+                                new Point2D(0.0, 10.0),
+                                new Point2D(0.1, 20)
+                            }))
+                        }, new MacroStabilityInwardsPreconsolidationStress[0]))
+                .SetName("SoilLayer X start- and endpoint on right side of surfaceline");
+
+            yield return new TestCaseData(
+                    new MacroStabilityInwardsSoilProfile2D(
+                        "profile",
+                        new[]
+                        {
+                            new MacroStabilityInwardsSoilLayer2D(new Ring(new[]
+                            {
+                                new Point2D(0.1, 20),
+                                new Point2D(0.2, 10),
+                                new Point2D(0.0, 10)
+                            })),
+                            new MacroStabilityInwardsSoilLayer2D(new Ring(new[]
+                            {
+                                new Point2D(0.0, 10.0),
+                                new Point2D(0.1, 20)
+                            }))
+                        }, new MacroStabilityInwardsPreconsolidationStress[0]))
+                .SetName("SoilLayer X start- and endpoint on left side of surfaceline");
         }
 
         private static RoundedDouble GetTestNormativeAssessmentLevel()