Index: DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/MacroStabilityTests.cs
===================================================================
diff -u -r1105 -r1131
--- DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/MacroStabilityTests.cs	(.../MacroStabilityTests.cs)	(revision 1105)
+++ DamEngine/trunk/src/Deltares.DamEngine.Interface.Tests/MacroStabilityTests.cs	(.../MacroStabilityTests.cs)	(revision 1131)
@@ -593,8 +593,8 @@
             Assert.AreEqual("6-4-3-A-1-C_2_s", result.ProfileName);
             // Calculation Result
             Assert.AreEqual(CalculationResult.UnexpectedError, ConversionHelper.ConvertToCalculationResult(result.CalculationResult));
-            // SafetyFactor=null
-            Assert.AreEqual(null, result.StabilityDesignResults.SafetyFactor);
+            // SafetyFactor not specified
+            Assert.IsFalse(result.StabilityDesignResults.SafetyFactorSpecified);
 
             result = output.Results.CalculationResults.DesignResults[2];
             Assert.AreEqual("6-4-3-B-1-D", result.LocationName);