Index: Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Service.Test/WaveImpactAsphaltCoverWaveConditionsCalculationServiceTest.cs
===================================================================
diff -u -r7044ef7d789aec3c3d9dd2c6f38b3699bea0444b -r6c049c504e7f599a8cebb26ae37fcd82b03782f2
--- Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Service.Test/WaveImpactAsphaltCoverWaveConditionsCalculationServiceTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsCalculationServiceTest.cs)	(revision 7044ef7d789aec3c3d9dd2c6f38b3699bea0444b)
+++ Ringtoets/WaveImpactAsphaltCover/test/Ringtoets.WaveImpactAsphaltCover.Service.Test/WaveImpactAsphaltCoverWaveConditionsCalculationServiceTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsCalculationServiceTest.cs)	(revision 6c049c504e7f599a8cebb26ae37fcd82b03782f2)
@@ -38,7 +38,6 @@
 using Ringtoets.HydraRing.Calculation.TestUtil.Calculator;
 using Ringtoets.Revetment.Data;
 using Ringtoets.Revetment.Service;
-using Ringtoets.Revetment.TestUtil;
 using Ringtoets.WaveImpactAsphaltCover.Data;
 
 namespace Ringtoets.WaveImpactAsphaltCover.Service.Test
@@ -641,15 +640,24 @@
         }
 
         [Test]
-        [TestCaseSource(typeof(WaveConditionsCosineCalculatorTestHelper), nameof(WaveConditionsCosineCalculatorTestHelper.FailingWaveConditionsCosineCalculators))]
-        public void Calculate_ThreeCalculationsFail_ThrowsHydraRingCalculationExceptionAndLogError(TestWaveConditionsCosineCalculator calculatorThatFails,
+        [TestCaseSource(typeof(HydraRingCalculatorTestCaseProvider), nameof(HydraRingCalculatorTestCaseProvider.GetCalculatorFailingConditionsWithReportDetails), new object[]
+        {
+            nameof(Calculate_OneOutOfThreeCalculationsFails_ReturnsOutputsAndLogError)
+        })]
+        public void Calculate_ThreeCalculationsFail_ThrowsHydraRingCalculationExceptionAndLogError(bool endInFailure,
+                                                                                                   string lastErrorFileContent,
                                                                                                    string detailedReport)
         {
             // Setup
             var failureMechanism = new WaveImpactAsphaltCoverFailureMechanism
             {
                 Contribution = 20
             };
+            var calculatorThatFails = new TestWaveConditionsCosineCalculator
+            {
+                EndInFailure = endInFailure,
+                LastErrorFileContent = lastErrorFileContent
+            };
 
             var mockRepository = new MockRepository();
             var calculatorFactory = mockRepository.StrictMock<IHydraRingCalculatorFactory>();
@@ -723,15 +731,24 @@
         }
 
         [Test]
-        [TestCaseSource(typeof(WaveConditionsCosineCalculatorTestHelper), nameof(WaveConditionsCosineCalculatorTestHelper.FailingWaveConditionsCosineCalculators))]
-        public void Calculate_OneOutOfThreeCalculationsFails_ReturnsOutputsAndLogError(TestWaveConditionsCosineCalculator calculatorThatFails,
+        [TestCaseSource(typeof(HydraRingCalculatorTestCaseProvider), nameof(HydraRingCalculatorTestCaseProvider.GetCalculatorFailingConditionsWithReportDetails), new object[]
+        {
+            nameof(Calculate_OneOutOfThreeCalculationsFails_ReturnsOutputsAndLogError)
+        })]
+        public void Calculate_OneOutOfThreeCalculationsFails_ReturnsOutputsAndLogError(bool endInFailure,
+                                                                                       string lastErrorFileContent,
                                                                                        string detailedReport)
         {
             // Setup
             var failureMechanism = new WaveImpactAsphaltCoverFailureMechanism
             {
                 Contribution = 20
             };
+            var calculatorThatFails = new TestWaveConditionsCosineCalculator
+            {
+                EndInFailure = endInFailure,
+                LastErrorFileContent = lastErrorFileContent
+            };
 
             var mockRepository = new MockRepository();
             var calculatorFactory = mockRepository.Stub<IHydraRingCalculatorFactory>();