Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.TestUtil/MacroStabilityInwardsCalculationScenarioFactory.cs
===================================================================
diff -u -r576fbbe099aca7d8d22168cafcdd4d8af86131a5 -racc348dd668eb46c98bd72a23c0cd3ba8812c8f0
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.TestUtil/MacroStabilityInwardsCalculationScenarioFactory.cs	(.../MacroStabilityInwardsCalculationScenarioFactory.cs)	(revision 576fbbe099aca7d8d22168cafcdd4d8af86131a5)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.TestUtil/MacroStabilityInwardsCalculationScenarioFactory.cs	(.../MacroStabilityInwardsCalculationScenarioFactory.cs)	(revision acc348dd668eb46c98bd72a23c0cd3ba8812c8f0)
@@ -92,6 +92,7 @@
             {
                 throw new ArgumentNullException(nameof(section));
             }
+
             var surfaceLine = new MacroStabilityInwardsSurfaceLine(string.Empty);
             Point2D p = section.Points.First();
             surfaceLine.SetGeometry(new[]
@@ -222,7 +223,18 @@
             surfaceLine.SetDikeToeAtPolderAt(fifthCharacteristicPointLocation);
             surfaceLine.SetSurfaceLevelInsideAt(sixthCharacteristicPointLocation);
 
-            HydraulicBoundaryLocation hydraulicBoundaryLocation = TestHydraulicBoundaryLocation.CreateDesignWaterLevelCalculated(1.0);
+            HydraulicBoundaryLocation hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation
+            {
+                DesignWaterLevelCalculation2 =
+                {
+                    Output = new TestHydraulicBoundaryLocationOutput(1.1)
+                },
+                DesignWaterLevelCalculation3 =
+                {
+                    Output = new TestHydraulicBoundaryLocationOutput(2.2)
+                }
+            };
+
             return new MacroStabilityInwardsCalculationScenario
             {
                 InputParameters =
@@ -295,7 +307,7 @@
                 }
             };
         }
-        
+
         /// <summary>
         /// Creates a scenario with valid input and output.
         /// </summary>
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.TestUtil/MacroStabilityInwardsTestDataGenerator.cs
===================================================================
diff -u -rd57b5fdfd92270ac6eff490b438bbe90f0296a4d -racc348dd668eb46c98bd72a23c0cd3ba8812c8f0
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.TestUtil/MacroStabilityInwardsTestDataGenerator.cs	(.../MacroStabilityInwardsTestDataGenerator.cs)	(revision d57b5fdfd92270ac6eff490b438bbe90f0296a4d)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Data.TestUtil/MacroStabilityInwardsTestDataGenerator.cs	(.../MacroStabilityInwardsTestDataGenerator.cs)	(revision acc348dd668eb46c98bd72a23c0cd3ba8812c8f0)
@@ -69,6 +69,8 @@
         public static MacroStabilityInwardsCalculationScenario GetMacroStabilityInwardsCalculationScenarioWithAssessmentLevel()
         {
             MacroStabilityInwardsCalculationScenario calculation = GetMacroStabilityInwardsCalculationScenario();
+
+            calculation.InputParameters.HydraulicBoundaryLocation = null;
             calculation.InputParameters.UseAssessmentLevelManualInput = true;
             calculation.InputParameters.AssessmentLevel = (RoundedDouble) 3.0;
 
@@ -535,7 +537,7 @@
             input.StochasticSoilModel = stochasticSoilModel;
             input.StochasticSoilProfile = stochasticSoilProfile;
             input.SurfaceLine = surfaceLine;
-            input.UseAssessmentLevelManualInput = true;
+            input.UseAssessmentLevelManualInput = random.NextBoolean();
             input.AssessmentLevel = random.NextRoundedDouble();
             input.SlipPlaneMinimumDepth = random.NextRoundedDouble();
             input.SlipPlaneMinimumLength = random.NextRoundedDouble();
Index: Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsCalculationActivityTest.cs
===================================================================
diff -u -rd57b5fdfd92270ac6eff490b438bbe90f0296a4d -racc348dd668eb46c98bd72a23c0cd3ba8812c8f0
--- Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsCalculationActivityTest.cs	(.../MacroStabilityInwardsCalculationActivityTest.cs)	(revision d57b5fdfd92270ac6eff490b438bbe90f0296a4d)
+++ Ringtoets/MacroStabilityInwards/test/Ringtoets.MacroStabilityInwards.Service.Test/MacroStabilityInwardsCalculationActivityTest.cs	(.../MacroStabilityInwardsCalculationActivityTest.cs)	(revision acc348dd668eb46c98bd72a23c0cd3ba8812c8f0)
@@ -22,6 +22,7 @@
 using System;
 using System.Linq;
 using Core.Common.Base;
+using Core.Common.Base.Data;
 using Core.Common.Base.Service;
 using Core.Common.TestUtil;
 using log4net.Core;
@@ -44,7 +45,7 @@
             var calculation = new MacroStabilityInwardsCalculation();
 
             // Call
-            var activity = new MacroStabilityInwardsCalculationActivity(calculation);
+            var activity = new MacroStabilityInwardsCalculationActivity(calculation, RoundedDouble.NaN);
 
             // Assert
             Assert.IsInstanceOf<Activity>(activity);
@@ -57,14 +58,14 @@
         public void Constructor_CalculationNull_ThrowsArgumentNullException()
         {
             // Call
-            TestDelegate call = () => new MacroStabilityInwardsCalculationActivity(null);
+            TestDelegate call = () => new MacroStabilityInwardsCalculationActivity(null, RoundedDouble.NaN);
 
             // Assert
             var exception = Assert.Throws<ArgumentNullException>(call);
             Assert.AreEqual("calculation", exception.ParamName);
         }
 
-       [Test]
+        [Test]
         public void Run_InvalidMacroStabilityInwardsCalculationWithOutput_LogValidationStartAndEndWithErrors()
         {
             // Setup
@@ -73,7 +74,7 @@
             MacroStabilityInwardsCalculationScenario invalidMacroStabilityInwardsCalculation = MacroStabilityInwardsCalculationScenarioFactory.CreateMacroStabilityInwardsCalculationScenarioWithInvalidInput();
             invalidMacroStabilityInwardsCalculation.Output = originalOutput;
 
-            var activity = new MacroStabilityInwardsCalculationActivity(invalidMacroStabilityInwardsCalculation);
+            var activity = new MacroStabilityInwardsCalculationActivity(invalidMacroStabilityInwardsCalculation, GetCalculatedTestAssessmentLevel());
 
             // Call
             Action call = () => activity.Run();
@@ -105,7 +106,7 @@
 
             using (new MacroStabilityInwardsCalculatorFactoryConfig())
             {
-                var activity = new MacroStabilityInwardsCalculationActivity(validMacroStabilityInwardsCalculation);
+                var activity = new MacroStabilityInwardsCalculationActivity(validMacroStabilityInwardsCalculation, GetCalculatedTestAssessmentLevel());
                 activity.Run();
 
                 // Call
@@ -140,7 +141,7 @@
             validMacroStabilityInwardsCalculation.Output = null;
             validMacroStabilityInwardsCalculation.Attach(observer);
 
-            var activity = new MacroStabilityInwardsCalculationActivity(validMacroStabilityInwardsCalculation);
+            var activity = new MacroStabilityInwardsCalculationActivity(validMacroStabilityInwardsCalculation, GetCalculatedTestAssessmentLevel());
 
             activity.Run();
 
@@ -150,5 +151,10 @@
             // Assert
             mocks.VerifyAll();
         }
+
+        private static RoundedDouble GetCalculatedTestAssessmentLevel()
+        {
+            return (RoundedDouble) 1.1;
+        }
     }
 }
\ No newline at end of file