Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.TestUtil.Test/DuneLocationsTestHelperTest.cs
===================================================================
diff -u -ra789b7d96a520ff5eff1d2c1486df5dac89ce802 -rfc467f76e8545222ec2672fe9206129cc8fd9b4f
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.TestUtil.Test/DuneLocationsTestHelperTest.cs	(.../DuneLocationsTestHelperTest.cs)	(revision a789b7d96a520ff5eff1d2c1486df5dac89ce802)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.TestUtil.Test/DuneLocationsTestHelperTest.cs	(.../DuneLocationsTestHelperTest.cs)	(revision fc467f76e8545222ec2672fe9206129cc8fd9b4f)
@@ -113,5 +113,49 @@
             var exception = Assert.Throws<ArgumentNullException>(call);
             Assert.AreEqual("failureMechanism", exception.ParamName);
         }
+
+        [Test]
+        public void SetDuneLocationCalculationOutput_FailureMechanismNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => DuneLocationsTestHelper.SetDuneLocationCalculationOutput(null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("failureMechanism", exception.ParamName);
+        }
+
+        [Test]
+        public void SetDuneLocationCalculationOut_FailureMechanismWithDuneLocations_SetsAllDuneLocationCalculationsWithOutput()
+        {
+            // Setup
+            var failureMechanism = new DuneErosionFailureMechanism();
+            failureMechanism.SetDuneLocations(new[]
+            {
+                new TestDuneLocation(),
+                new TestDuneLocation()
+            });
+
+            // Precondition
+            Assert.True(failureMechanism.CalculationsForMechanismSpecificFactorizedSignalingNorm.All(calc => !HasDuneLocationCalculationOutput(calc)));
+            Assert.True(failureMechanism.CalculationsForMechanismSpecificSignalingNorm.All(calc => !HasDuneLocationCalculationOutput(calc)));
+            Assert.True(failureMechanism.CalculationsForMechanismSpecificLowerLimitNorm.All(calc => !HasDuneLocationCalculationOutput(calc)));
+            Assert.True(failureMechanism.CalculationsForLowerLimitNorm.All(calc => !HasDuneLocationCalculationOutput(calc)));
+            Assert.True(failureMechanism.CalculationsForFactorizedLowerLimitNorm.All(calc => !HasDuneLocationCalculationOutput(calc)));
+
+            // Call
+            DuneLocationsTestHelper.SetDuneLocationCalculationOutput(failureMechanism);
+
+            // Assert
+            Assert.True(failureMechanism.CalculationsForMechanismSpecificFactorizedSignalingNorm.All(HasDuneLocationCalculationOutput));
+            Assert.True(failureMechanism.CalculationsForMechanismSpecificSignalingNorm.All(HasDuneLocationCalculationOutput));
+            Assert.True(failureMechanism.CalculationsForMechanismSpecificLowerLimitNorm.All(HasDuneLocationCalculationOutput));
+            Assert.True(failureMechanism.CalculationsForLowerLimitNorm.All(HasDuneLocationCalculationOutput));
+            Assert.True(failureMechanism.CalculationsForFactorizedLowerLimitNorm.All(HasDuneLocationCalculationOutput));
+        }
+        private static bool HasDuneLocationCalculationOutput(DuneLocationCalculation calculation)
+        {
+            return calculation.Output != null;
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.TestUtil/DuneLocationsTestHelper.cs
===================================================================
diff -u -ra789b7d96a520ff5eff1d2c1486df5dac89ce802 -rfc467f76e8545222ec2672fe9206129cc8fd9b4f
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.TestUtil/DuneLocationsTestHelper.cs	(.../DuneLocationsTestHelper.cs)	(revision a789b7d96a520ff5eff1d2c1486df5dac89ce802)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Data.TestUtil/DuneLocationsTestHelper.cs	(.../DuneLocationsTestHelper.cs)	(revision fc467f76e8545222ec2672fe9206129cc8fd9b4f)
@@ -80,9 +80,39 @@
             Assert.True(failureMechanism.CalculationsForFactorizedLowerLimitNorm.All(calc => !HasDuneLocationCalculationOutput(calc)));
         }
 
+        /// <summary>
+        /// Sets dummy dune location calculation output for all dune location calculations within <paramref name="failureMechanism"/>.
+        /// </summary>
+        /// <param name="failureMechanism">The failure mechanism to set the dune location calculation outputs for.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="failureMechanism"/> is <c>null</c>.</exception>
+        public static void SetDuneLocationCalculationOutput(DuneErosionFailureMechanism failureMechanism)
+        {
+            if (failureMechanism == null)
+            {
+                throw new ArgumentNullException(nameof(failureMechanism));
+            }
+
+            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForMechanismSpecificFactorizedSignalingNorm);
+            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForMechanismSpecificSignalingNorm);
+            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForMechanismSpecificLowerLimitNorm);
+            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForLowerLimitNorm);
+            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForFactorizedLowerLimitNorm);
+        }
+
         private static bool HasDuneLocationCalculationOutput(DuneLocationCalculation calculation)
         {
             return calculation.Output != null;
         }
+
+        private static void SetDuneLocationCalculationOutput(IEnumerable<DuneLocationCalculation> calculations)
+        {
+            var random = new Random(21);
+            foreach (DuneLocationCalculation duneLocationCalculation in calculations)
+            {
+                duneLocationCalculation.Output = new TestDuneLocationCalculationOutput(random.NextDouble(),
+                                                                                       random.NextDouble(),
+                                                                                       random.NextDouble());
+            }
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Forms.Test/Factories/AggregatedDuneLocationFactoryTest.cs
===================================================================
diff -u -rbece430ab05641ddb6fe2976c5683028b82acb08 -rfc467f76e8545222ec2672fe9206129cc8fd9b4f
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Forms.Test/Factories/AggregatedDuneLocationFactoryTest.cs	(.../AggregatedDuneLocationFactoryTest.cs)	(revision bece430ab05641ddb6fe2976c5683028b82acb08)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Forms.Test/Factories/AggregatedDuneLocationFactoryTest.cs	(.../AggregatedDuneLocationFactoryTest.cs)	(revision fc467f76e8545222ec2672fe9206129cc8fd9b4f)
@@ -57,7 +57,7 @@
 
             var failureMechanism = new DuneErosionFailureMechanism();
             failureMechanism.SetDuneLocations(duneLocations);
-            SetDuneLocationCalculationOutput(failureMechanism);
+            DuneLocationsTestHelper.SetDuneLocationCalculationOutput(failureMechanism);
 
             // Call
             IEnumerable<AggregatedDuneLocation> aggregatedLocations = AggregatedDuneLocationFactory.CreateAggregatedDuneLocations(failureMechanism);
@@ -171,26 +171,6 @@
             });
         }
 
-        private static void SetDuneLocationCalculationOutput(DuneErosionFailureMechanism failureMechanism)
-        {
-            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForMechanismSpecificFactorizedSignalingNorm);
-            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForMechanismSpecificSignalingNorm);
-            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForMechanismSpecificLowerLimitNorm);
-            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForLowerLimitNorm);
-            SetDuneLocationCalculationOutput(failureMechanism.CalculationsForFactorizedLowerLimitNorm);
-        }
-
-        private static void SetDuneLocationCalculationOutput(IEnumerable<DuneLocationCalculation> calculations)
-        {
-            var random = new Random(21);
-            foreach (DuneLocationCalculation duneLocationCalculation in calculations)
-            {
-                duneLocationCalculation.Output = new TestDuneLocationCalculationOutput(random.NextDouble(),
-                                                                                       random.NextDouble(),
-                                                                                       random.NextDouble());
-            }
-        }
-
         private static void AssertDuneLocationOutput(IEnumerable<DuneLocationCalculation> calculations,
                                                      DuneLocation duneLocation,
                                                      Func<RoundedDouble> getWaterLevelFunc,