Index: Ringtoets/Common/test/Ringtoets.Common.Data.Test/AssessmentSection/AssessmentSectionExtensionsTest.cs
===================================================================
diff -u -r3498b00cbb08beddf6f6e9e60ff432ab708fb3b6 -r1a6b52d906627a8e50b6675c1bbdee644854b959
--- Ringtoets/Common/test/Ringtoets.Common.Data.Test/AssessmentSection/AssessmentSectionExtensionsTest.cs	(.../AssessmentSectionExtensionsTest.cs)	(revision 3498b00cbb08beddf6f6e9e60ff432ab708fb3b6)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.Test/AssessmentSection/AssessmentSectionExtensionsTest.cs	(.../AssessmentSectionExtensionsTest.cs)	(revision 1a6b52d906627a8e50b6675c1bbdee644854b959)
@@ -210,7 +210,7 @@
         }
 
         [Test]
-        [TestCaseSource(nameof(DifferentCategoryTypes))]
+        [TestCaseSource(typeof(AssessmentSectionHelper), nameof(AssessmentSectionHelper.GetAssessmentLevelConfigurationPerAssessmentSectionCategoryType))]
         public void GetAssessmentLevel_HydraulicBoundaryLocationWithOutput_ReturnsCorrespondingAssessmentLevel(
             IAssessmentSection assessmentSection,
             HydraulicBoundaryLocation hydraulicBoundaryLocation,
@@ -248,44 +248,5 @@
                 assessmentSection.WaterLevelCalculationsForLowerLimitNorm.ElementAt(0).Output.Result
             ).SetName("LowerLimitNorm");
         }
-
-        private static IEnumerable DifferentCategoryTypes()
-        {
-            var assessmentSection = new AssessmentSectionStub();
-            var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation();
-
-            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
-            {
-                hydraulicBoundaryLocation
-            }, true);
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedSignalingNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedSignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.SignalingNorm,
-                assessmentSection.WaterLevelCalculationsForSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("SignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.LowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("LowerLimitNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedLowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedLowerLimitNorm");
-        }
     }
 }
\ No newline at end of file
Index: Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/AssessmentSectionHelper.cs
===================================================================
diff -u -rb6c5a6803f86609b579a26f76efebe2ed658d829 -r1a6b52d906627a8e50b6675c1bbdee644854b959
--- Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/AssessmentSectionHelper.cs	(.../AssessmentSectionHelper.cs)	(revision b6c5a6803f86609b579a26f76efebe2ed658d829)
+++ Ringtoets/Common/test/Ringtoets.Common.Data.TestUtil/AssessmentSectionHelper.cs	(.../AssessmentSectionHelper.cs)	(revision 1a6b52d906627a8e50b6675c1bbdee644854b959)
@@ -20,9 +20,11 @@
 // All rights reserved.
 
 using System;
+using System.Collections;
 using System.Linq;
 using Core.Common.Base.Data;
 using Core.Common.TestUtil;
+using NUnit.Framework;
 using Rhino.Mocks;
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.Contribution;
@@ -91,6 +93,58 @@
             return testNormativeAssessmentLevel;
         }
 
+        /// <summary>
+        /// Gets a collection of <see cref="TestCaseData"/> containing an assessment level
+        /// configuration for all types of <see cref="AssessmentSectionCategoryType"/>.
+        /// </summary>
+        /// <returns>A collection of <see cref="TestCaseData"/>, in which each item contains:
+        /// <list type="bullet">
+        /// <item>the configured assessment section;</item>
+        /// <item>the hydraulic boundary location for which the assessment level output has been set;</item>
+        /// <item>the category type at stake;</item>
+        /// <item>the set assessment level (which makes it the "expected assessment level" given the combination
+        /// of the before-mentioned assessment section, hydraulic boundary location and category type).</item>
+        /// </list>
+        /// </returns>
+        public static IEnumerable GetAssessmentLevelConfigurationPerAssessmentSectionCategoryType()
+        {
+            var assessmentSection = new AssessmentSectionStub();
+            var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation();
+
+            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
+            {
+                hydraulicBoundaryLocation
+            }, true);
+
+            yield return new TestCaseData(
+                assessmentSection,
+                hydraulicBoundaryLocation,
+                AssessmentSectionCategoryType.FactorizedSignalingNorm,
+                assessmentSection.WaterLevelCalculationsForFactorizedSignalingNorm.ElementAt(0).Output.Result
+            ).SetName("FactorizedSignalingNorm");
+
+            yield return new TestCaseData(
+                assessmentSection,
+                hydraulicBoundaryLocation,
+                AssessmentSectionCategoryType.SignalingNorm,
+                assessmentSection.WaterLevelCalculationsForSignalingNorm.ElementAt(0).Output.Result
+            ).SetName("SignalingNorm");
+
+            yield return new TestCaseData(
+                assessmentSection,
+                hydraulicBoundaryLocation,
+                AssessmentSectionCategoryType.LowerLimitNorm,
+                assessmentSection.WaterLevelCalculationsForLowerLimitNorm.ElementAt(0).Output.Result
+            ).SetName("LowerLimitNorm");
+
+            yield return new TestCaseData(
+                assessmentSection,
+                hydraulicBoundaryLocation,
+                AssessmentSectionCategoryType.FactorizedLowerLimitNorm,
+                assessmentSection.WaterLevelCalculationsForFactorizedLowerLimitNorm.ElementAt(0).Output.Result
+            ).SetName("FactorizedLowerLimitNorm");
+        }
+
         private static IFailureMechanism[] GetFailureMechanisms(IFailureMechanism failureMechanism)
         {
             return failureMechanism == null
Index: Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/PropertyInfos/StabilityStoneCoverWaveConditionsInputContextPropertyInfoTest.cs
===================================================================
diff -u -re7e455ded8ce63d7d6694009d2b6d71d6e233bdf -r1a6b52d906627a8e50b6675c1bbdee644854b959
--- Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/PropertyInfos/StabilityStoneCoverWaveConditionsInputContextPropertyInfoTest.cs	(.../StabilityStoneCoverWaveConditionsInputContextPropertyInfoTest.cs)	(revision e7e455ded8ce63d7d6694009d2b6d71d6e233bdf)
+++ Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/PropertyInfos/StabilityStoneCoverWaveConditionsInputContextPropertyInfoTest.cs	(.../StabilityStoneCoverWaveConditionsInputContextPropertyInfoTest.cs)	(revision 1a6b52d906627a8e50b6675c1bbdee644854b959)
@@ -19,7 +19,6 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-using System.Collections;
 using System.Linq;
 using Core.Common.Base.Data;
 using Core.Common.Gui.Plugin;
@@ -54,7 +53,7 @@
         }
 
         [Test]
-        [TestCaseSource(nameof(DifferentCategoryTypes))]
+        [TestCaseSource(typeof(AssessmentSectionHelper), nameof(AssessmentSectionHelper.GetAssessmentLevelConfigurationPerAssessmentSectionCategoryType))]
         public void CreateInstance_WithContextThatHasInputWithSpecificCategoryType_ExpectedProperties(
             IAssessmentSection assessmentSection,
             HydraulicBoundaryLocation hydraulicBoundaryLocation,
@@ -95,44 +94,5 @@
         {
             return plugin.GetPropertyInfos().First(pi => pi.DataType == typeof(StabilityStoneCoverWaveConditionsInputContext));
         }
-
-        private static IEnumerable DifferentCategoryTypes()
-        {
-            var assessmentSection = new AssessmentSectionStub();
-            var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation();
-
-            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
-            {
-                hydraulicBoundaryLocation
-            }, true);
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedSignalingNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedSignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.SignalingNorm,
-                assessmentSection.WaterLevelCalculationsForSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("SignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.LowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("LowerLimitNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedLowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedLowerLimitNorm");
-        }
     }
 }
\ No newline at end of file
Index: Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/ViewInfos/StabilityStoneCoverWaveConditionsInputViewInfoTest.cs
===================================================================
diff -u -rd16723db8548660eb4586fe7fbd7d8e48c695735 -r1a6b52d906627a8e50b6675c1bbdee644854b959
--- Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/ViewInfos/StabilityStoneCoverWaveConditionsInputViewInfoTest.cs	(.../StabilityStoneCoverWaveConditionsInputViewInfoTest.cs)	(revision d16723db8548660eb4586fe7fbd7d8e48c695735)
+++ Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Plugin.Test/ViewInfos/StabilityStoneCoverWaveConditionsInputViewInfoTest.cs	(.../StabilityStoneCoverWaveConditionsInputViewInfoTest.cs)	(revision 1a6b52d906627a8e50b6675c1bbdee644854b959)
@@ -19,7 +19,6 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-using System.Collections;
 using System.Drawing;
 using System.Linq;
 using Core.Common.Base.Data;
@@ -138,7 +137,7 @@
         }
 
         [Test]
-        [TestCaseSource(nameof(DifferentCategoryTypes))]
+        [TestCaseSource(typeof(AssessmentSectionHelper), nameof(AssessmentSectionHelper.GetAssessmentLevelConfigurationPerAssessmentSectionCategoryType))]
         public void CreateInstance_WithContextThatHasInputWithSpecificCategoryType_ReturnViewWithCorrespondingAssessmentLevel(
             IAssessmentSection assessmentSection,
             HydraulicBoundaryLocation hydraulicBoundaryLocation,
@@ -171,45 +170,6 @@
             Assert.AreEqual(expectedAssessmentLevel, designWaterLevelChartData.Points.First().Y);
         }
 
-        private static IEnumerable DifferentCategoryTypes()
-        {
-            var assessmentSection = new AssessmentSectionStub();
-            var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation();
-
-            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
-            {
-                hydraulicBoundaryLocation
-            }, true);
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedSignalingNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedSignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.SignalingNorm,
-                assessmentSection.WaterLevelCalculationsForSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("SignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.LowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("LowerLimitNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedLowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedLowerLimitNorm");
-        }
-
         #region ShouldCloseViewWithCalculationDataTester
 
         protected override bool ShouldCloseMethod(IView view, object o)
Index: Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Plugin.Test/PropertyInfos/WaveImpactAsphaltCoverWaveConditionsInputContextPropertyInfoTest.cs
===================================================================
diff -u -re7e455ded8ce63d7d6694009d2b6d71d6e233bdf -r1a6b52d906627a8e50b6675c1bbdee644854b959
--- Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Plugin.Test/PropertyInfos/WaveImpactAsphaltCoverWaveConditionsInputContextPropertyInfoTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsInputContextPropertyInfoTest.cs)	(revision e7e455ded8ce63d7d6694009d2b6d71d6e233bdf)
+++ Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Plugin.Test/PropertyInfos/WaveImpactAsphaltCoverWaveConditionsInputContextPropertyInfoTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsInputContextPropertyInfoTest.cs)	(revision 1a6b52d906627a8e50b6675c1bbdee644854b959)
@@ -19,7 +19,6 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
-using System.Collections;
 using System.Linq;
 using Core.Common.Base.Data;
 using Core.Common.Gui.Plugin;
@@ -54,7 +53,7 @@
         }
 
         [Test]
-        [TestCaseSource(nameof(DifferentCategoryTypes))]
+        [TestCaseSource(typeof(AssessmentSectionHelper), nameof(AssessmentSectionHelper.GetAssessmentLevelConfigurationPerAssessmentSectionCategoryType))]
         public void CreateInstance_WithContextThatHasInputWithSpecificCategoryType_ExpectedProperties(
             IAssessmentSection assessmentSection,
             HydraulicBoundaryLocation hydraulicBoundaryLocation,
@@ -95,44 +94,5 @@
         {
             return plugin.GetPropertyInfos().First(pi => pi.DataType == typeof(WaveImpactAsphaltCoverWaveConditionsInputContext));
         }
-
-        private static IEnumerable DifferentCategoryTypes()
-        {
-            var assessmentSection = new AssessmentSectionStub();
-            var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation();
-
-            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
-            {
-                hydraulicBoundaryLocation
-            }, true);
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedSignalingNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedSignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.SignalingNorm,
-                assessmentSection.WaterLevelCalculationsForSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("SignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.LowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("LowerLimitNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedLowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedLowerLimitNorm");
-        }
     }
 }
\ No newline at end of file
Index: Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Plugin.Test/ViewInfos/WaveImpactAsphaltCoverWaveConditionsInputViewInfoTest.cs
===================================================================
diff -u -rd6316e6823d8fe43a41b303d1b75c8323d7a4272 -r1a6b52d906627a8e50b6675c1bbdee644854b959
--- Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Plugin.Test/ViewInfos/WaveImpactAsphaltCoverWaveConditionsInputViewInfoTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsInputViewInfoTest.cs)	(revision d6316e6823d8fe43a41b303d1b75c8323d7a4272)
+++ Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Plugin.Test/ViewInfos/WaveImpactAsphaltCoverWaveConditionsInputViewInfoTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsInputViewInfoTest.cs)	(revision 1a6b52d906627a8e50b6675c1bbdee644854b959)
@@ -138,7 +138,7 @@
         }
 
         [Test]
-        [TestCaseSource(nameof(DifferentCategoryTypes))]
+        [TestCaseSource(typeof(AssessmentSectionHelper), nameof(AssessmentSectionHelper.GetAssessmentLevelConfigurationPerAssessmentSectionCategoryType))]
         public void CreateInstance_WithContextThatHasInputWithSpecificCategoryType_ReturnViewWithCorrespondingAssessmentLevel(
             IAssessmentSection assessmentSection,
             HydraulicBoundaryLocation hydraulicBoundaryLocation,
@@ -171,45 +171,6 @@
             Assert.AreEqual(expectedAssessmentLevel, designWaterLevelChartData.Points.First().Y);
         }
 
-        private static IEnumerable DifferentCategoryTypes()
-        {
-            var assessmentSection = new AssessmentSectionStub();
-            var hydraulicBoundaryLocation = new TestHydraulicBoundaryLocation();
-
-            assessmentSection.SetHydraulicBoundaryLocationCalculations(new[]
-            {
-                hydraulicBoundaryLocation
-            }, true);
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedSignalingNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedSignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.SignalingNorm,
-                assessmentSection.WaterLevelCalculationsForSignalingNorm.ElementAt(0).Output.Result
-            ).SetName("SignalingNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.LowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("LowerLimitNorm");
-
-            yield return new TestCaseData(
-                assessmentSection,
-                hydraulicBoundaryLocation,
-                AssessmentSectionCategoryType.FactorizedLowerLimitNorm,
-                assessmentSection.WaterLevelCalculationsForFactorizedLowerLimitNorm.ElementAt(0).Output.Result
-            ).SetName("FactorizedLowerLimitNorm");
-        }
-
         #region ShouldCloseViewWithCalculationDataTester
 
         protected override bool ShouldCloseMethod(IView view, object o)