Index: Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs
===================================================================
diff -u -r407f2cd70c80899d9a6c70e98cbc5a9b3480784b -rac2ef64a966ba1988c30df9773b383716e133eef
--- Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision 407f2cd70c80899d9a6c70e98cbc5a9b3480784b)
+++ Ringtoets/Integration/src/Ringtoets.Integration.Plugin/Merge/AssessmentSectionMergeHandler.cs	(.../AssessmentSectionMergeHandler.cs)	(revision ac2ef64a966ba1988c30df9773b383716e133eef)
@@ -19,7 +19,9 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
+using System;
 using System.Collections.Generic;
+using Core.Common.Gui.Commands;
 using Ringtoets.Common.Data.FailureMechanism;
 using Ringtoets.Integration.Data;
 
@@ -30,7 +32,28 @@
     /// </summary>
     public class AssessmentSectionMergeHandler : IAssessmentSectionMergeHandler
     {
+        private readonly IViewCommands viewCommands;
+
+        /// <summary>
+        /// Creates a new instance of <see cref="AssessmentSectionMergeHandler"/>.
+        /// </summary>
+        /// <param name="viewCommands">The view commands used to close views for the target
+        /// <see cref="AssessmentSection"/>.</param>
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="viewCommands"/>
+        /// is <c>null</c>.</exception>
+        public AssessmentSectionMergeHandler(IViewCommands viewCommands)
+        {
+            if (viewCommands == null)
+            {
+                throw new ArgumentNullException(nameof(viewCommands));
+            }
+
+            this.viewCommands = viewCommands;
+        }
+
         public void PerformMerge(AssessmentSection targetAssessmentSection, AssessmentSection sourceAssessmentSection,
-                                 IEnumerable<IFailureMechanism> failureMechanismsToMerge) {}
+                                 IEnumerable<IFailureMechanism> failureMechanismsToMerge)
+        {
+        }
     }
 }
\ No newline at end of file
Index: Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs
===================================================================
diff -u -r407f2cd70c80899d9a6c70e98cbc5a9b3480784b -rac2ef64a966ba1988c30df9773b383716e133eef
--- Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs	(.../AssessmentSectionMergeHandlerTest.cs)	(revision 407f2cd70c80899d9a6c70e98cbc5a9b3480784b)
+++ Ringtoets/Integration/test/Ringtoets.Integration.Plugin.Test/Merge/AssessmentSectionMergeHandlerTest.cs	(.../AssessmentSectionMergeHandlerTest.cs)	(revision ac2ef64a966ba1988c30df9773b383716e133eef)
@@ -19,7 +19,10 @@
 // Stichting Deltares and remain full property of Stichting Deltares at all times.
 // All rights reserved.
 
+using System;
+using Core.Common.Gui.Commands;
 using NUnit.Framework;
+using Rhino.Mocks;
 using Ringtoets.Integration.Plugin.Merge;
 
 namespace Ringtoets.Integration.Plugin.Test.Merge
@@ -28,13 +31,30 @@
     public class AssessmentSectionMergeHandlerTest
     {
         [Test]
+        public void Constructor_ViewCommandsNull_ThrowsArgumentNullException()
+        {
+            // Call
+            TestDelegate call = () => new AssessmentSectionMergeHandler(null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(call);
+            Assert.AreEqual("viewCommands", exception.ParamName);
+        }
+
+        [Test]
         public void Constructor_ExpectedValues()
         {
+            // Setup
+            var mocks = new MockRepository();
+            var viewCommands = mocks.StrictMock<IViewCommands>();
+            mocks.ReplayAll();
+
             // Call
-            var handler = new AssessmentSectionMergeHandler();
+            var handler = new AssessmentSectionMergeHandler(viewCommands);
 
             // Assert
             Assert.IsInstanceOf<IAssessmentSectionMergeHandler>(handler);
+            mocks.VerifyAll();
         }
     }
 }
\ No newline at end of file