Index: Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationActivityTest.cs
===================================================================
diff -u -r3541c7abb0ff0c7eae87e83eed2bfe691a2d46e8 -r14a4de9fb707e6975c8e710e7947bdaa80212cc1
--- Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationActivityTest.cs	(.../DesignWaterLevelCalculationActivityTest.cs)	(revision 3541c7abb0ff0c7eae87e83eed2bfe691a2d46e8)
+++ Ringtoets/Common/test/Ringtoets.Common.Service.Test/DesignWaterLevelCalculationActivityTest.cs	(.../DesignWaterLevelCalculationActivityTest.cs)	(revision 14a4de9fb707e6975c8e710e7947bdaa80212cc1)
@@ -68,6 +68,24 @@
         }
 
         [Test]
+        public void Constructor_CalculationSettingsNull_ThrowsArgumentNullException()
+        {
+            // Setup
+            const string locationName = "locationName";
+            const string categoryBoundaryName = "A";
+
+            // Call
+            TestDelegate call = () => new DesignWaterLevelCalculationActivity(new HydraulicBoundaryLocationCalculation(new TestHydraulicBoundaryLocation(locationName)),
+                                                                              null,
+                                                                              1,
+                                                                              categoryBoundaryName);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("calculationSettings", exception.ParamName);
+        }
+
+        [Test]
         public void Constructor_ExpectedValues()
         {
             // Setup