Index: Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/WaveHeightCalculatorTest.cs
===================================================================
diff -u -re69acb9595f7bf1d202ddd1fb51934b66768b75d -rb646e027b7b030947d7339c442d44810d9347893
--- Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/WaveHeightCalculatorTest.cs	(.../WaveHeightCalculatorTest.cs)	(revision e69acb9595f7bf1d202ddd1fb51934b66768b75d)
+++ Ringtoets/HydraRing/test/Ringtoets.HydraRing.Calculation.Test/Calculator/WaveHeightCalculatorTest.cs	(.../WaveHeightCalculatorTest.cs)	(revision b646e027b7b030947d7339c442d44810d9347893)
@@ -28,14 +28,16 @@
     public class WaveHeightCalculatorTest
     {
         [Test]
-        public void DefaultConstructor_InitializesOutputNaN()
+        public void DefaultConstructor_InitializesOutputWithoutValues()
         {
             // Call
             var calculator = new WaveHeightCalculator(string.Empty, string.Empty);
 
             // Assert
+            Assert.IsInstanceOf<HydraRingCalculatorBase>(calculator);
             Assert.IsNaN(calculator.ReliabilityIndex);
             Assert.IsNaN(calculator.WaveHeight);
+            Assert.IsNull(calculator.OutputFileContent);
         }
     }
 }
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