Index: Ringtoets/Revetment/test/Ringtoets.Revetment.Service.Test/WaveConditionsCalculationServiceBaseTest.cs
===================================================================
diff -u -re3dfee35e824946dbdc46353425a493d77b2a0c8 -r631448b5dbf13f2c3c4e411729c9fba4e1e8cdcd
--- Ringtoets/Revetment/test/Ringtoets.Revetment.Service.Test/WaveConditionsCalculationServiceBaseTest.cs	(.../WaveConditionsCalculationServiceBaseTest.cs)	(revision e3dfee35e824946dbdc46353425a493d77b2a0c8)
+++ Ringtoets/Revetment/test/Ringtoets.Revetment.Service.Test/WaveConditionsCalculationServiceBaseTest.cs	(.../WaveConditionsCalculationServiceBaseTest.cs)	(revision 631448b5dbf13f2c3c4e411729c9fba4e1e8cdcd)
@@ -839,30 +839,14 @@
             };
             var mockRepository = new MockRepository();
             var calculatorFactory = mockRepository.StrictMock<IHydraRingCalculatorFactory>();
-            calculatorFactory.Expect(cf => cf.CreateWaveConditionsCosineCalculator(Arg<HydraRingCalculationSettings>.Is.NotNull))
-                             .WhenCalled(invocation =>
-                             {
-                                 var settings = (HydraRingCalculationSettings) invocation.Arguments[0];
-                                 Assert.AreEqual(validFilePath, settings.HlcdFilePath);
-                                 Assert.IsEmpty(settings.PreprocessorDirectory);
-                             })
+            calculatorFactory.Expect(cf => cf.CreateWaveConditionsCosineCalculator(null))
+                             .IgnoreArguments()
                              .Return(calculatorThatFails);
-            calculatorFactory.Expect(cf => cf.CreateWaveConditionsCosineCalculator(Arg<HydraRingCalculationSettings>.Is.NotNull))
-                             .WhenCalled(invocation =>
-                             {
-                                 var settings = (HydraRingCalculationSettings) invocation.Arguments[0];
-                                 Assert.AreEqual(validFilePath, settings.HlcdFilePath);
-                                 Assert.IsEmpty(settings.PreprocessorDirectory);
-                             })
-                             .Return(new TestWaveConditionsCosineCalculator());
-            calculatorFactory.Expect(cf => cf.CreateWaveConditionsCosineCalculator(Arg<HydraRingCalculationSettings>.Is.NotNull))
-                             .WhenCalled(invocation =>
-                             {
-                                 var settings = (HydraRingCalculationSettings) invocation.Arguments[0];
-                                 Assert.AreEqual(validFilePath, settings.HlcdFilePath);
-                                 Assert.IsEmpty(settings.PreprocessorDirectory);
-                             })
-                             .Return(new TestWaveConditionsCosineCalculator());
+            calculatorFactory.Expect(cf => cf.CreateWaveConditionsCosineCalculator(null))
+                             .IgnoreArguments()
+                             .Return(new TestWaveConditionsCosineCalculator())
+                             .Repeat
+                             .Twice();
             mockRepository.ReplayAll();
 
             var waterLevelUpperBoundary = new RoundedDouble(2, 4.00);