Index: Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -32,6 +32,7 @@
 using Core.Gui.Commands;
 using Core.Gui.ContextMenu;
 using Core.Gui.Forms.Main;
+using Core.Gui.TestUtil;
 using Core.Gui.TestUtil.ContextMenu;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
@@ -52,7 +53,6 @@
 using Riskeer.StabilityPointStructures.Data;
 using Riskeer.StabilityPointStructures.Data.TestUtil;
 using Riskeer.StabilityPointStructures.Forms.PresentationObjects;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.StabilityPointStructures.Plugin.Test.TreeNodeInfos
@@ -1509,9 +1509,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var mainWindow = mocks.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocks);
                 
                 gui.Stub(g => g.Get(groupContext, treeViewControl)).Return(menuBuilder);
                 gui.Stub(g => g.MainWindow).Return(mainWindow);
Index: Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationScenarioContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationScenarioContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationScenarioContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationScenarioContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationScenarioContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -30,6 +30,7 @@
 using Core.Gui;
 using Core.Gui.ContextMenu;
 using Core.Gui.Forms.Main;
+using Core.Gui.TestUtil;
 using Core.Gui.TestUtil.ContextMenu;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
@@ -49,7 +50,6 @@
 using Riskeer.StabilityPointStructures.Data;
 using Riskeer.StabilityPointStructures.Data.TestUtil;
 using Riskeer.StabilityPointStructures.Forms.PresentationObjects;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.StabilityPointStructures.Plugin.Test.TreeNodeInfos
@@ -953,9 +953,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var mainWindow = mocks.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocks);
                 
                 var gui = mocks.Stub<IGui>();
                 gui.Stub(g => g.Get(calculationContext, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
Index: Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationsContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationsContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationsContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/StabilityPointStructures/test/Riskeer.StabilityPointStructures.Plugin.Test/TreeNodeInfos/StabilityPointStructuresCalculationsContextTreeNodeInfoTest.cs	(.../StabilityPointStructuresCalculationsContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -31,6 +31,7 @@
 using Core.Gui;
 using Core.Gui.ContextMenu;
 using Core.Gui.Forms.Main;
+using Core.Gui.TestUtil;
 using Core.Gui.TestUtil.ContextMenu;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
@@ -50,7 +51,6 @@
 using Riskeer.StabilityPointStructures.Data;
 using Riskeer.StabilityPointStructures.Data.TestUtil;
 using Riskeer.StabilityPointStructures.Forms.PresentationObjects;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.StabilityPointStructures.Plugin.Test.TreeNodeInfos
@@ -463,9 +463,7 @@
             using (var plugin = new StabilityPointStructuresPlugin())
             using (var treeViewControl = new TreeViewControl())
             {
-                var mainWindow = mocksRepository.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocksRepository);
 
                 var gui = mocksRepository.Stub<IGui>();
                 gui.Stub(g => g.Get(context, treeViewControl)).Return(menuBuilder);
Index: Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverCalculationsContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverCalculationsContextTreeNodeInfoTest.cs	(.../StabilityStoneCoverCalculationsContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverCalculationsContextTreeNodeInfoTest.cs	(.../StabilityStoneCoverCalculationsContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -19,7 +19,6 @@
 // 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.IO;
@@ -31,6 +30,7 @@
 using Core.Gui;
 using Core.Gui.ContextMenu;
 using Core.Gui.Forms.Main;
+using Core.Gui.TestUtil;
 using Core.Gui.TestUtil.ContextMenu;
 using NUnit.Framework;
 using Rhino.Mocks;
@@ -47,7 +47,6 @@
 using Riskeer.Revetment.Data;
 using Riskeer.StabilityStoneCover.Data;
 using Riskeer.StabilityStoneCover.Forms.PresentationObjects;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.StabilityStoneCover.Plugin.Test.TreeNodeInfos
@@ -310,9 +309,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var mainWindow = mocks.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocks);
                 
                 var gui = mocks.Stub<IGui>();
                 gui.Stub(g => g.Get(nodeData, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
Index: Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs	(.../StabilityStoneCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs	(.../StabilityStoneCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -32,6 +32,7 @@
 using Core.Gui.Commands;
 using Core.Gui.ContextMenu;
 using Core.Gui.Forms.Main;
+using Core.Gui.TestUtil;
 using Core.Gui.TestUtil.ContextMenu;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
@@ -50,7 +51,6 @@
 using Riskeer.StabilityStoneCover.Data;
 using Riskeer.StabilityStoneCover.Data.TestUtil;
 using Riskeer.StabilityStoneCover.Forms.PresentationObjects;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.StabilityStoneCover.Plugin.Test.TreeNodeInfos
@@ -1302,10 +1302,9 @@
                                                          viewCommands,
                                                          context,
                                                          treeViewControl);
-                var mainWindow = mocks.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
 
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocks);
+
                 var gui = mocks.Stub<IGui>();
                 gui.Stub(g => g.Get(context, treeViewControl)).Return(menuBuilder);
                 gui.Stub(g => g.MainWindow).Return(mainWindow);
Index: Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs	(.../StabilityStoneCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/StabilityStoneCover/test/Riskeer.StabilityStoneCover.Plugin.Test/TreeNodeInfos/StabilityStoneCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs	(.../StabilityStoneCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -34,6 +34,7 @@
 using Core.Gui.ContextMenu;
 using Core.Gui.Forms.Main;
 using Core.Gui.Plugin;
+using Core.Gui.TestUtil;
 using Core.Gui.TestUtil.ContextMenu;
 using NUnit.Extensions.Forms;
 using NUnit.Framework;
@@ -53,7 +54,6 @@
 using Riskeer.StabilityStoneCover.Data.TestUtil;
 using Riskeer.StabilityStoneCover.Forms.PresentationObjects;
 using CoreGuiResources = Core.Gui.Properties.Resources;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.StabilityStoneCover.Plugin.Test.TreeNodeInfos
@@ -1150,9 +1150,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var mainWindow = mocks.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocks);
 
                 gui.Stub(g => g.Get(nodeData, treeViewControl)).Return(menuBuilder);
                 gui.Stub(g => g.MainWindow).Return(mainWindow);
Index: Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverCalculationsContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverCalculationsContextTreeNodeInfoTest.cs	(.../WaveImpactAsphaltCoverCalculationsContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverCalculationsContextTreeNodeInfoTest.cs	(.../WaveImpactAsphaltCoverCalculationsContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -31,6 +31,7 @@
 using Core.Gui;
 using Core.Gui.ContextMenu;
 using Core.Gui.Forms.Main;
+using Core.Gui.TestUtil;
 using Core.Gui.TestUtil.ContextMenu;
 using NUnit.Framework;
 using Rhino.Mocks;
@@ -47,7 +48,6 @@
 using Riskeer.Revetment.Data;
 using Riskeer.WaveImpactAsphaltCover.Data;
 using Riskeer.WaveImpactAsphaltCover.Forms.PresentationObjects;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.WaveImpactAsphaltCover.Plugin.Test.TreeNodeInfos
@@ -309,9 +309,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var mainWindow = mocks.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocks);
 
                 var gui = mocks.Stub<IGui>();
                 gui.Stub(g => g.Get(nodeData, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
Index: Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsCalculationContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -50,7 +50,6 @@
 using Riskeer.Revetment.Data;
 using Riskeer.WaveImpactAsphaltCover.Data;
 using Riskeer.WaveImpactAsphaltCover.Forms.PresentationObjects;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.WaveImpactAsphaltCover.Plugin.Test.TreeNodeInfos
@@ -1488,9 +1487,7 @@
                 observer.Expect(o => o.UpdateObserver());
                 calculation.Attach(observer);
 
-                var mainWindow = mocks.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocks);
 
                 var gui = mocks.Stub<IGui>();
                 gui.Stub(g => g.Get(context, treeViewControl)).Return(menuBuilder);
Index: Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r886b86a66f072735567285a3489923186c236c32 -r0e0eff94d9452eeebda5f68f183414d4ee3df413
--- Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs)	(revision 886b86a66f072735567285a3489923186c236c32)
+++ Riskeer/WaveImpactAsphaltCover/test/Riskeer.WaveImpactAsphaltCover.Plugin.Test/TreeNodeInfos/WaveImpactAsphaltCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs	(.../WaveImpactAsphaltCoverWaveConditionsCalculationGroupContextTreeNodeInfoTest.cs)	(revision 0e0eff94d9452eeebda5f68f183414d4ee3df413)
@@ -52,7 +52,6 @@
 using Riskeer.WaveImpactAsphaltCover.Data;
 using Riskeer.WaveImpactAsphaltCover.Forms.PresentationObjects;
 using CoreGuiResources = Core.Gui.Properties.Resources;
-using CoreGuiTestUtilResources = Core.Gui.TestUtil.Properties.Resources;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.WaveImpactAsphaltCover.Plugin.Test.TreeNodeInfos
@@ -1173,9 +1172,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var mainWindow = mocks.Stub<IMainWindow>();
-                mainWindow.Stub(mw => mw.ApplicationIcon).Return(CoreGuiTestUtilResources.TestIcon);
-                mainWindow.Stub(mw => mw.Handle).Return(IntPtr.Zero);
+                IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mocks);
 
                 gui.Stub(g => g.Get(nodeData, treeViewControl)).Return(menuBuilder);
                 gui.Stub(g => g.MainWindow).Return(mainWindow);