Index: Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Service.Test/HeightStructuresDataSynchronizationServiceTest.cs
===================================================================
diff -u -rea7fd6455177ea93f8419e6a29fc00d1d3167359 -r8ba37153259674b9368d4cd2297a54843b181d75
--- Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Service.Test/HeightStructuresDataSynchronizationServiceTest.cs	(.../HeightStructuresDataSynchronizationServiceTest.cs)	(revision ea7fd6455177ea93f8419e6a29fc00d1d3167359)
+++ Ringtoets/HeightStructures/test/Ringtoets.HeightStructures.Service.Test/HeightStructuresDataSynchronizationServiceTest.cs	(.../HeightStructuresDataSynchronizationServiceTest.cs)	(revision 8ba37153259674b9368d4cd2297a54843b181d75)
@@ -609,8 +609,11 @@
                 structure2
             }, "someLocation");
 
-            failureMechanism.AddSectionResult(section1);
-            failureMechanism.AddSectionResult(section2);
+            failureMechanism.AddSections(new[]
+            {
+                section1,
+                section2
+            });
             HeightStructuresFailureMechanismSectionResult result1 = failureMechanism.SectionResults
                                                                                     .First(sr => ReferenceEquals(sr.Section, section1));
             HeightStructuresFailureMechanismSectionResult result2 = failureMechanism.SectionResults