Index: Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Data.Test/StabilityStoneCoverFailureMechanismAssemblyFactoryTest.cs
===================================================================
diff -u -r8d9701fc88424972b9f06c3e9f28fc55d85bebd9 -rc1ad8e8431d65da2f22adeb93f9deddd9fae77e3
--- Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Data.Test/StabilityStoneCoverFailureMechanismAssemblyFactoryTest.cs	(.../StabilityStoneCoverFailureMechanismAssemblyFactoryTest.cs)	(revision 8d9701fc88424972b9f06c3e9f28fc55d85bebd9)
+++ Ringtoets/StabilityStoneCover/test/Ringtoets.StabilityStoneCover.Data.Test/StabilityStoneCoverFailureMechanismAssemblyFactoryTest.cs	(.../StabilityStoneCoverFailureMechanismAssemblyFactoryTest.cs)	(revision c1ad8e8431d65da2f22adeb93f9deddd9fae77e3)
@@ -480,7 +480,7 @@
                 // Assert
                 FailureMechanismSectionAssemblyCategoryGroup expectedAssembly = StabilityStoneCoverFailureMechanismAssemblyFactory.AssembleCombinedAssessment(
                     sectionResult);
-                Assert.AreEqual(categoryGroup, expectedAssembly);
+                Assert.AreEqual(expectedAssembly, categoryGroup);
             }
         }
 
@@ -499,7 +499,7 @@
                 sectionResult);
 
             // Assert
-            Assert.AreEqual(categoryGroup, sectionResult.ManualAssemblyCategoryGroup);
+            Assert.AreEqual(sectionResult.ManualAssemblyCategoryGroup, categoryGroup);
         }
 
         [Test]
@@ -562,7 +562,10 @@
         {
             // Setup
             var failureMechanism = new StabilityStoneCoverFailureMechanism();
-            failureMechanism.AddSection(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+            FailureMechanismTestHelper.SetSections(failureMechanism, new[]
+            {
+                FailureMechanismSectionTestFactory.CreateFailureMechanismSection()
+            });
 
             using (new AssemblyToolCalculatorFactoryConfig())
             {
@@ -584,7 +587,10 @@
         {
             // Setup
             var failureMechanism = new StabilityStoneCoverFailureMechanism();
-            failureMechanism.AddSection(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+            FailureMechanismTestHelper.SetSections(failureMechanism, new[]
+            {
+                FailureMechanismSectionTestFactory.CreateFailureMechanismSection()
+            });
             StabilityStoneCoverFailureMechanismSectionResult sectionResult = failureMechanism.SectionResults.Single();
             sectionResult.UseManualAssemblyCategoryGroup = true;
             sectionResult.ManualAssemblyCategoryGroup = new Random(39).NextEnumValue<FailureMechanismSectionAssemblyCategoryGroup>();
@@ -646,7 +652,10 @@
         {
             // Setup
             var failureMechanism = new StabilityStoneCoverFailureMechanism();
-            failureMechanism.AddSection(FailureMechanismSectionTestFactory.CreateFailureMechanismSection());
+            FailureMechanismTestHelper.SetSections(failureMechanism, new[]
+            {
+                FailureMechanismSectionTestFactory.CreateFailureMechanismSection()
+            });
 
             using (new AssemblyToolCalculatorFactoryConfig())
             {