Index: Ringtoets/Common/test/Ringtoets.Common.Forms.Test/TreeNodeInfos/RingtoetsContextMenuBuilderTest.cs
===================================================================
diff -u -r8b60c9e846480f3ffeeb263bfea5d3367bf6bee3 -rfcfad01f406d6c59c4a3c1de1e75040cd534ab91
--- Ringtoets/Common/test/Ringtoets.Common.Forms.Test/TreeNodeInfos/RingtoetsContextMenuBuilderTest.cs	(.../RingtoetsContextMenuBuilderTest.cs)	(revision 8b60c9e846480f3ffeeb263bfea5d3367bf6bee3)
+++ Ringtoets/Common/test/Ringtoets.Common.Forms.Test/TreeNodeInfos/RingtoetsContextMenuBuilderTest.cs	(.../RingtoetsContextMenuBuilderTest.cs)	(revision fcfad01f406d6c59c4a3c1de1e75040cd534ab91)
@@ -19,6 +19,7 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
+using System;
 using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
@@ -797,6 +798,51 @@
 
         #endregion
 
+        #region AddDuplicateCalculationItem
+
+        [Test]
+        public void AddDuplicateCalculationItem_WhenBuildWithCalculationWithOutput_ItemAddedToContextMenuEnabled()
+        {
+            // Setup
+            var mocks = new MockRepository();
+            var applicationFeatureCommands = mocks.StrictMock<IApplicationFeatureCommands>();
+            var importCommandHandler = mocks.StrictMock<IImportCommandHandler>();
+            var exportCommandHandler = mocks.StrictMock<IExportCommandHandler>();
+            var updateCommandHandler = mocks.StrictMock<IUpdateCommandHandler>();
+            var viewCommands = mocks.StrictMock<IViewCommands>();
+            var calculation = mocks.Stub<ICloneableCalculation>();
+            var calculationContext = mocks.Stub<ICalculationContext<ICloneableCalculation, IFailureMechanism>>();
+
+            mocks.ReplayAll();
+
+            using (var treeViewControl = new TreeViewControl())
+            {
+                var contextMenuBuilder = new ContextMenuBuilder(applicationFeatureCommands,
+                                                                importCommandHandler,
+                                                                exportCommandHandler,
+                                                                updateCommandHandler,
+                                                                viewCommands,
+                                                                calculation,
+                                                                treeViewControl);
+                var ringtoetsContextMenuBuilder = new RingtoetsContextMenuBuilder(contextMenuBuilder);
+
+                // Call
+                ContextMenuStrip result = ringtoetsContextMenuBuilder.AddDuplicateCalculationItem(calculation, calculationContext).Build();
+
+                // Assert
+                Assert.IsInstanceOf<ContextMenuStrip>(result);
+                Assert.AreEqual(1, result.Items.Count);
+
+                TestHelper.AssertContextMenuStripContainsItem(result, 0,
+                                                              "D&upliceren",
+                                                              "Dupliceer deze berekening.",
+                                                              RingtoetsFormsResources.CopyHS);
+            }
+            mocks.VerifyAll();
+        }
+
+        #endregion
+
         #region AddPerformCalculationItem
 
         [Test]
@@ -1845,6 +1891,8 @@
 
         public interface ICalculationInputWithForeshoreProfile : ICalculationInput, IHasForeshoreProfile {}
 
+        public interface ICloneableCalculation : ICalculation, ICloneable { }
+
         #endregion
     }
 }
\ No newline at end of file
Index: Ringtoets/Common/test/Ringtoets.Common.Forms.Test/TreeNodeInfos/RingtoetsContextMenuItemFactoryTest.cs
===================================================================
diff -u -r22c5092409b8d4cf1be4d3ebfdd41169c0e64c14 -rfcfad01f406d6c59c4a3c1de1e75040cd534ab91
--- Ringtoets/Common/test/Ringtoets.Common.Forms.Test/TreeNodeInfos/RingtoetsContextMenuItemFactoryTest.cs	(.../RingtoetsContextMenuItemFactoryTest.cs)	(revision 22c5092409b8d4cf1be4d3ebfdd41169c0e64c14)
+++ Ringtoets/Common/test/Ringtoets.Common.Forms.Test/TreeNodeInfos/RingtoetsContextMenuItemFactoryTest.cs	(.../RingtoetsContextMenuItemFactoryTest.cs)	(revision fcfad01f406d6c59c4a3c1de1e75040cd534ab91)
@@ -619,7 +619,7 @@
                                                   }
                                               },
                                               "Kopie van Nieuwe berekening")
-                    .SetName("NameOfStandardCopyUnique");
+                    .SetName("NameOfDefaultCopyUnique");
                 yield return new TestCaseData(calculation,
                                               new CalculationGroup
                                               {
@@ -633,7 +633,7 @@
                                                   }
                                               },
                                               "Kopie van Nieuwe berekening (1)")
-                    .SetName("NameOfStandardCopySameAsOtherCalculation");
+                    .SetName("NameOfDefaultCopySameAsOtherCalculation");
                 yield return new TestCaseData(calculation,
                                               new CalculationGroup
                                               {
@@ -647,7 +647,7 @@
                                                   }
                                               },
                                               "Kopie van Nieuwe berekening (1)")
-                    .SetName("NameOfStandardCopySameAsOtherCalculationGroup");
+                    .SetName("NameOfDefaultCopySameAsOtherCalculationGroup");
             }
         }
 
@@ -694,10 +694,10 @@
             toolStripItem.PerformClick();
 
             // Assert
-            ICalculationBase copiedItem = calculationGroup.Children.Except(originalChildren).SingleOrDefault();
-            Assert.IsNotNull(copiedItem);
-            Assert.AreEqual(expectedCalculationName, copiedItem.Name);
-            Assert.AreEqual(originalChildren.IndexOf(calculation) + 1, calculationGroup.Children.IndexOf(copiedItem));
+            ICalculationBase duplicatedItem = calculationGroup.Children.Except(originalChildren).SingleOrDefault();
+            Assert.IsNotNull(duplicatedItem);
+            Assert.AreEqual(expectedCalculationName, duplicatedItem.Name);
+            Assert.AreEqual(originalChildren.IndexOf(calculation) + 1, calculationGroup.Children.IndexOf(duplicatedItem));
 
             mocks.VerifyAll();
         }