Index: Ringtoets/Common/test/Ringtoets.Common.Service.Test/RingtoetsCommonDataCalculationServiceTest.cs
===================================================================
diff -u -r18e230605af8cda1d527525691b2ba9597bf1464 -rae74507edbfc4fe632ba5f964a147aff630dfe6e
--- Ringtoets/Common/test/Ringtoets.Common.Service.Test/RingtoetsCommonDataCalculationServiceTest.cs	(.../RingtoetsCommonDataCalculationServiceTest.cs)	(revision 18e230605af8cda1d527525691b2ba9597bf1464)
+++ Ringtoets/Common/test/Ringtoets.Common.Service.Test/RingtoetsCommonDataCalculationServiceTest.cs	(.../RingtoetsCommonDataCalculationServiceTest.cs)	(revision ae74507edbfc4fe632ba5f964a147aff630dfe6e)
@@ -31,34 +31,19 @@
     public class RingtoetsCommonDataCalculationServiceTest
     {
         [Test]
-        public void GetCalculationConvergence_WithConvergedResults_CalculationConvergedTrue()
+        [TestCase(true, CalculationConvergence.CalculatedConverged)]
+        [TestCase(false, CalculationConvergence.CalculatedNotConverged)]
+        [TestCase(null, CalculationConvergence.NotCalculated)]
+        public void GetCalculationConvergence_WithDifferentValues_ReturnsExpectedConvergence(bool? value, CalculationConvergence expectedConvergence)
         {
-            // Setup
-            const double norm = 0.05;
-            double reliabilityIndex = StatisticsConverter.ProbabilityToReliability(norm);
-
             // Call
-            CalculationConvergence calculationConverged = RingtoetsCommonDataCalculationService.GetCalculationConvergence(reliabilityIndex, norm);
+            CalculationConvergence calculationConverged = RingtoetsCommonDataCalculationService.GetCalculationConvergence(value);
 
             // Assert
-            Assert.AreEqual(CalculationConvergence.CalculatedConverged, calculationConverged);
+            Assert.AreEqual(expectedConvergence, calculationConverged);
         }
 
         [Test]
-        public void GetCalculationConvergence_WithoutConvergedResults_CalculationConvergedFalse()
-        {
-            // Setup
-            var output = new ReliabilityIndexCalculationOutput(5.0e-3, 5.0e-3);
-            const double norm = 1;
-
-            // Call
-            CalculationConvergence calculationConverged = RingtoetsCommonDataCalculationService.GetCalculationConvergence(output.CalculatedReliabilityIndex, norm);
-
-            // Assert
-            Assert.AreEqual(CalculationConvergence.CalculatedNotConverged, calculationConverged);
-        }
-
-        [Test]
         [Combinatorial]
         public void ProfileSpecificRequiredProbability_WithValidParameters_ReturnSpecificProbability(
             [Values(1, 0.5, 0)] double norm,