Index: Core/Common/test/Core.Common.Gui.Test/Core.Common.Gui.Test.csproj
===================================================================
diff -u -r08e8d26a0715f0f3db57c1d3e86256aa06934db4 -rfb31ac40136f4d87142db78fd20854849bc11885
--- Core/Common/test/Core.Common.Gui.Test/Core.Common.Gui.Test.csproj	(.../Core.Common.Gui.Test.csproj)	(revision 08e8d26a0715f0f3db57c1d3e86256aa06934db4)
+++ Core/Common/test/Core.Common.Gui.Test/Core.Common.Gui.Test.csproj	(.../Core.Common.Gui.Test.csproj)	(revision fb31ac40136f4d87142db78fd20854849bc11885)
@@ -21,6 +21,7 @@
     <ProjectReference Include="..\..\src\Core.Common.Controls\Core.Common.Controls.csproj" />
     <ProjectReference Include="..\..\src\Core.Common.Gui\Core.Common.Gui.csproj" />
     <ProjectReference Include="..\..\src\Core.Common.Util\Core.Common.Util.csproj" />
+    <ProjectReference Include="..\Core.Common.Gui.TestUtil\Core.Common.Gui.TestUtil.csproj" />
     <ProjectReference Include="..\Core.Common.TestUtil\Core.Common.TestUtil.csproj" />
   </ItemGroup>
   <ItemGroup>
Index: Core/Common/test/Core.Common.Gui.Test/ExceptionDialogTest.cs
===================================================================
diff -u -re75ff273f0e261eb9f7534d56b6f6a642b01ff9e -rfb31ac40136f4d87142db78fd20854849bc11885
--- Core/Common/test/Core.Common.Gui.Test/ExceptionDialogTest.cs	(.../ExceptionDialogTest.cs)	(revision e75ff273f0e261eb9f7534d56b6f6a642b01ff9e)
+++ Core/Common/test/Core.Common.Gui.Test/ExceptionDialogTest.cs	(.../ExceptionDialogTest.cs)	(revision fb31ac40136f4d87142db78fd20854849bc11885)
@@ -24,6 +24,7 @@
 using System.Windows.Forms;
 using Core.Common.Gui.ClipBoard;
 using Core.Common.Gui.Commands;
+using Core.Common.Gui.TestUtil.Clipboard;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
 using Rhino.Mocks;
@@ -238,6 +239,7 @@
         {
             // Setup
             var exception = new Exception("Test");
+            using (new ClipboardConfig())
             using (var dialog = new ExceptionDialog(new UserControl(), null, exception))
             {
                 dialog.Show();
Index: Core/Common/test/Core.Common.Gui.Test/Forms/MessageWindow/MessageWindowTest.cs
===================================================================
diff -u -re75ff273f0e261eb9f7534d56b6f6a642b01ff9e -rfb31ac40136f4d87142db78fd20854849bc11885
--- Core/Common/test/Core.Common.Gui.Test/Forms/MessageWindow/MessageWindowTest.cs	(.../MessageWindowTest.cs)	(revision e75ff273f0e261eb9f7534d56b6f6a642b01ff9e)
+++ Core/Common/test/Core.Common.Gui.Test/Forms/MessageWindow/MessageWindowTest.cs	(.../MessageWindowTest.cs)	(revision fb31ac40136f4d87142db78fd20854849bc11885)
@@ -24,6 +24,7 @@
 using System.Threading;
 using System.Windows.Forms;
 using Core.Common.Gui.ClipBoard;
+using Core.Common.Gui.TestUtil.Clipboard;
 using log4net.Core;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
@@ -442,6 +443,7 @@
         {
             // Setup
             using (var form = new Form())
+            using (new ClipboardConfig())
             using (GuiFormsMessageWindow.MessageWindow messageWindow = ShowMessageWindow(null))
             {
                 form.Controls.Add(messageWindow);
Fisheye: Tag fb31ac40136f4d87142db78fd20854849bc11885 refers to a dead (removed) revision in file `Core/Common/test/Core.Common.Gui.TestUtil/Clipboard/AssemblyToolCalculatorFactoryConfig.cs'.
Fisheye: No comparison available.  Pass `N' to diff?
Index: Core/Common/test/Core.Common.Gui.TestUtil/Clipboard/ClipboardConfig.cs
===================================================================
diff -u
--- Core/Common/test/Core.Common.Gui.TestUtil/Clipboard/ClipboardConfig.cs	(revision 0)
+++ Core/Common/test/Core.Common.Gui.TestUtil/Clipboard/ClipboardConfig.cs	(revision fb31ac40136f4d87142db78fd20854849bc11885)
@@ -0,0 +1,89 @@
+// Copyright (C) Stichting Deltares 2019. All rights reserved.
+//
+// This file is part of Riskeer.
+//
+// Riskeer is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+// 
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+// All names, logos, and references to "Deltares" are registered trademarks of
+// Stichting Deltares and remain full property of Stichting Deltares at all times.
+// All rights reserved.
+
+using System;
+using Core.Common.Gui.ClipBoard;
+
+namespace Core.Common.Gui.TestUtil.Clipboard
+{
+    /// <summary>
+    /// This class can be used to set a temporary <see cref="IClipboard"/> for <see cref="ClipboardProvider"/> while
+    /// testing. Disposing an instance of this class will revert the <see cref="ClipboardProvider.Clipboard"/> to its
+    /// original state.
+    /// </summary>
+    /// <example>
+    /// The following is an example for how to use this class:
+    /// <code>
+    /// using(new ClipboardConfig())
+    /// {
+    ///     IClipboard clipboard = ClipboardProvider.Clipboard;
+    /// 
+    ///     // Perform tests with clipboard
+    /// }
+    /// </code>
+    /// </example>
+    public class ClipboardConfig : IDisposable
+    {
+        private readonly IClipboard previousClipboard;
+
+        /// <summary>
+        /// Creates a new instance of <see cref="ClipboardConfig"/>. Sets a test implementation of <see cref="IClipboard"/> to 
+        /// <see cref="ClipboardProvider.Clipboard"/>.
+        /// </summary>
+        public ClipboardConfig()
+        {
+            previousClipboard = ClipboardProvider.Clipboard;
+            ClipboardProvider.Clipboard = new TestClipboard();
+        }
+
+        /// <summary>
+        /// Reverts <see cref="ClipboardProvider.Clipboard"/> to its original state.
+        /// </summary>
+        public void Dispose()
+        {
+            Dispose(true);
+            GC.SuppressFinalize(this);
+        }
+
+        protected virtual void Dispose(bool disposing)
+        {
+            if (disposing)
+            {
+                ClipboardProvider.Clipboard = previousClipboard;
+            }
+        }
+
+        private class TestClipboard : IClipboard
+        {
+            private string clipBoardContent;
+
+            public void SetDataObject(object data, bool copy = false)
+            {
+                clipBoardContent = data.ToString();
+            }
+
+            public string GetText()
+            {
+                return clipBoardContent;
+            }
+        }
+    }
+}
\ No newline at end of file