Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Service.Test/DuneErosionBoundaryCalculationServiceTest.cs
===================================================================
diff -u -re93f3cb97066cae85be4a977098261d47ba6eb57 -r96a6ad152dc45508f0501e489c29611244e9d76c
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Service.Test/DuneErosionBoundaryCalculationServiceTest.cs	(.../DuneErosionBoundaryCalculationServiceTest.cs)	(revision e93f3cb97066cae85be4a977098261d47ba6eb57)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Service.Test/DuneErosionBoundaryCalculationServiceTest.cs	(.../DuneErosionBoundaryCalculationServiceTest.cs)	(revision 96a6ad152dc45508f0501e489c29611244e9d76c)
@@ -72,7 +72,7 @@
             // Setup
             const string locationName = "locationName";
             string notValidFilePath = Path.Combine(testDataPath, "notexisting.sqlite");
-            var valid = false;
+            var valid = true;
 
             // Call
             Action call = () => valid = DuneErosionBoundaryCalculationService.Validate(locationName, notValidFilePath);
@@ -170,7 +170,7 @@
 
                 // Assert
                 DunesBoundaryConditionsCalculationInput expectedInput = CreateInput(duneLocation, mechanismSpecificNorm);
-                AssertInput(expectedInput, calculator.ReceivedInputs.First());
+                AssertInput(expectedInput, calculator.ReceivedInputs.Single());
                 Assert.IsFalse(calculator.IsCanceled);
             }