Index: DamEngine/trunk/src/Deltares.DamEngine.IntegrationTests/IntegrationTests/OperationalHHNKTests.cs
===================================================================
diff -u -r5590 -r5632
--- DamEngine/trunk/src/Deltares.DamEngine.IntegrationTests/IntegrationTests/OperationalHHNKTests.cs	(.../OperationalHHNKTests.cs)	(revision 5590)
+++ DamEngine/trunk/src/Deltares.DamEngine.IntegrationTests/IntegrationTests/OperationalHHNKTests.cs	(.../OperationalHHNKTests.cs)	(revision 5632)
@@ -88,7 +88,7 @@
 
         Output output = GeneralHelper.RunAfterInputValidation(engineInterface, false);
 
-        Assert.That(output.Results.CalculationMessages.Length, Is.EqualTo(2));
+        Assert.That(output.Results.CalculationMessages, Has.Length.EqualTo(2));
         Assert.Multiple(() =>
         {
             Assert.That(output.Results.CalculationMessages[0].MessageType, Is.EqualTo(MessageMessageType.Info));