Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/HydraulicLoadsStateRootContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2a5ebe9dbc92130937c60bd0e1af6c47ba8aac59 -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/HydraulicLoadsStateRootContextTreeNodeInfoTest.cs	(.../HydraulicLoadsStateRootContextTreeNodeInfoTest.cs)	(revision 2a5ebe9dbc92130937c60bd0e1af6c47ba8aac59)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/HydraulicLoadsStateRootContextTreeNodeInfoTest.cs	(.../HydraulicLoadsStateRootContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -37,6 +37,7 @@
 using Riskeer.GrassCoverErosionOutwards.Forms.PresentationObjects;
 using Riskeer.Integration.Data;
 using Riskeer.Integration.Forms.PresentationObjects;
+using Riskeer.Integration.TestUtil;
 using Riskeer.StabilityStoneCover.Forms.PresentationObjects;
 using Riskeer.WaveImpactAsphaltCover.Forms.PresentationObjects;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
@@ -214,10 +215,8 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.Get(context, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 using (var plugin = new RiskeerPlugin())
@@ -259,10 +258,8 @@
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
                 var mocks = new MockRepository();
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 using (var plugin = new RiskeerPlugin())
@@ -296,10 +293,8 @@
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
                 var mocks = new MockRepository();
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 using (var plugin = new RiskeerPlugin())
@@ -340,10 +335,8 @@
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
                 var mocks = new MockRepository();
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 using (var plugin = new RiskeerPlugin())
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsAssemblyCategoriesContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsAssemblyCategoriesContextTreeNodeInfoTest.cs	(.../MacroStabilityOutwardsAssemblyCategoriesContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsAssemblyCategoriesContextTreeNodeInfoTest.cs	(.../MacroStabilityOutwardsAssemblyCategoriesContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -30,6 +30,7 @@
 using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Forms.PresentationObjects;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -122,10 +123,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 using (var plugin = new RiskeerPlugin())
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsFailureMechanismContextTreeNodeInfoTest.cs	(.../MacroStabilityOutwardsFailureMechanismContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsFailureMechanismContextTreeNodeInfoTest.cs	(.../MacroStabilityOutwardsFailureMechanismContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -44,6 +44,7 @@
 using Riskeer.Integration.Data.StandAlone.SectionResults;
 using Riskeer.Integration.Forms.PresentationObjects;
 using Riskeer.Integration.Forms.PresentationObjects.StandAlone;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -246,10 +247,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -286,10 +285,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -313,10 +310,8 @@
 
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -357,10 +352,8 @@
             {
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
@@ -400,10 +393,8 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsFailureMechanismSectionResultContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../MacroStabilityOutwardsFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MacroStabilityOutwardsFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../MacroStabilityOutwardsFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -31,6 +31,7 @@
 using Riskeer.Common.Forms.PresentationObjects;
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -126,10 +127,8 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.Get(null, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
 
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MicrostabilityFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MicrostabilityFailureMechanismContextTreeNodeInfoTest.cs	(.../MicrostabilityFailureMechanismContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MicrostabilityFailureMechanismContextTreeNodeInfoTest.cs	(.../MicrostabilityFailureMechanismContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -37,6 +37,7 @@
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
 using Riskeer.Integration.Forms.PresentationObjects.StandAlone;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -227,10 +228,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -267,10 +266,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -294,10 +291,8 @@
 
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -338,10 +333,8 @@
             {
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
@@ -381,10 +374,8 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MicrostabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MicrostabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../MicrostabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/MicrostabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../MicrostabilityFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -30,6 +30,7 @@
 using Riskeer.Common.Forms.PresentationObjects;
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -118,10 +119,8 @@
             using (plugin)
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.Get(null, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
 
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/NormContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/NormContextTreeNodeInfoTest.cs	(.../NormContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/NormContextTreeNodeInfoTest.cs	(.../NormContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -30,6 +30,7 @@
 using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Common.Data.TestUtil;
 using Riskeer.Common.Forms.PresentationObjects;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -119,9 +120,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismContextTreeNodeInfoTest.cs	(.../PipingStructureFailureMechanismContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismContextTreeNodeInfoTest.cs	(.../PipingStructureFailureMechanismContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -41,6 +41,7 @@
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
 using Riskeer.Integration.Forms.PresentationObjects.StandAlone;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -243,10 +244,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -283,10 +282,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -310,10 +307,8 @@
 
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -354,10 +349,8 @@
             {
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
@@ -397,10 +390,8 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismSectionResultContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../PipingStructureFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/PipingStructureFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../PipingStructureFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -30,6 +30,7 @@
 using Riskeer.Common.Forms.PresentationObjects;
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -118,10 +119,8 @@
             using (plugin)
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.Get(null, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
 
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/ReferenceLineContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/ReferenceLineContextTreeNodeInfoTest.cs	(.../ReferenceLineContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/ReferenceLineContextTreeNodeInfoTest.cs	(.../ReferenceLineContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -30,6 +30,7 @@
 using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Common.Data.TestUtil;
 using Riskeer.Common.Forms.PresentationObjects;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -138,10 +139,8 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.Get(null, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 using (var plugin = new RiskeerPlugin())
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StrengthStabilityLengthwiseConstructionFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StrengthStabilityLengthwiseConstructionFailureMechanismContextTreeNodeInfoTest.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanismContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StrengthStabilityLengthwiseConstructionFailureMechanismContextTreeNodeInfoTest.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanismContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -37,6 +37,7 @@
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
 using Riskeer.Integration.Forms.PresentationObjects.StandAlone;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -227,10 +228,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -267,10 +266,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -294,10 +291,8 @@
 
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -338,10 +333,8 @@
             {
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
@@ -381,10 +374,8 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StrengthStabilityLengthwiseConstructionFailureMechanismSectionResultContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StrengthStabilityLengthwiseConstructionFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StrengthStabilityLengthwiseConstructionFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../StrengthStabilityLengthwiseConstructionFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -30,6 +30,7 @@
 using Riskeer.Common.Forms.PresentationObjects;
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -119,10 +120,8 @@
             using (plugin)
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.Get(null, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
 
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StructuresOutputContextTreeNodeInfoTest.cs
===================================================================
diff -u -r1bc5f2299c66132f869d09d017327d80f4a9522c -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StructuresOutputContextTreeNodeInfoTest.cs	(.../StructuresOutputContextTreeNodeInfoTest.cs)	(revision 1bc5f2299c66132f869d09d017327d80f4a9522c)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/StructuresOutputContextTreeNodeInfoTest.cs	(.../StructuresOutputContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -30,6 +30,7 @@
 using Riskeer.Common.Data.Structures;
 using Riskeer.Common.Forms.PresentationObjects;
 using Riskeer.Common.Forms.Properties;
+using Riskeer.Integration.TestUtil;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
 {
@@ -152,9 +153,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocksRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mocksRepository);
                 gui.Stub(cmp => cmp.Get(null, treeViewControl)).Return(menuBuilder);
                 mocksRepository.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/TechnicalInnovationFailureMechanismContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/TechnicalInnovationFailureMechanismContextTreeNodeInfoTest.cs	(.../TechnicalInnovationFailureMechanismContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/TechnicalInnovationFailureMechanismContextTreeNodeInfoTest.cs	(.../TechnicalInnovationFailureMechanismContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -37,6 +37,7 @@
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
 using Riskeer.Integration.Forms.PresentationObjects.StandAlone;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -227,10 +228,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -267,10 +266,8 @@
                     menuBuilder.Expect(mb => mb.Build()).Return(null);
                 }
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -294,10 +291,8 @@
 
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 mocks.ReplayAll();
 
                 plugin.Gui = gui;
@@ -338,10 +333,8 @@
             {
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
@@ -381,10 +374,8 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(g => g.Get(failureMechanismContext, treeViewControl)).Return(menuBuilder);
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/TechnicalInnovationFailureMechanismSectionResultContextTreeNodeInfoTest.cs
===================================================================
diff -u -r48244f68eee25ef1d91701d82e4c4867f0252ffc -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/TechnicalInnovationFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../TechnicalInnovationFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision 48244f68eee25ef1d91701d82e4c4867f0252ffc)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/TechnicalInnovationFailureMechanismSectionResultContextTreeNodeInfoTest.cs	(.../TechnicalInnovationFailureMechanismSectionResultContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -30,6 +30,7 @@
 using Riskeer.Common.Forms.PresentationObjects;
 using Riskeer.Integration.Data.StandAlone;
 using Riskeer.Integration.Data.StandAlone.SectionResults;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -118,10 +119,8 @@
             using (plugin)
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mocks);
                 gui.Stub(g => g.Get(null, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
 
                 mocks.ReplayAll();
 
Index: Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForNormTargetProbabilitiesGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r87dde3cba63d491bae56a74efc4f9d058b2bc367 -rd8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d
--- Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForNormTargetProbabilitiesGroupContextTreeNodeInfoTest.cs	(.../WaterLevelCalculationsForNormTargetProbabilitiesGroupContextTreeNodeInfoTest.cs)	(revision 87dde3cba63d491bae56a74efc4f9d058b2bc367)
+++ Riskeer/Integration/test/Riskeer.Integration.Plugin.Test/TreeNodeInfos/WaterLevelCalculationsForNormTargetProbabilitiesGroupContextTreeNodeInfoTest.cs	(.../WaterLevelCalculationsForNormTargetProbabilitiesGroupContextTreeNodeInfoTest.cs)	(revision d8bcb9865f0953ec34cbea4c4a1334d9f1a1f31d)
@@ -49,6 +49,7 @@
 using Riskeer.HydraRing.Calculation.Calculator.Factory;
 using Riskeer.HydraRing.Calculation.Data.Input;
 using Riskeer.HydraRing.Calculation.TestUtil.Calculator;
+using Riskeer.Integration.TestUtil;
 using RiskeerCommonFormsResources = Riskeer.Common.Forms.Properties.Resources;
 
 namespace Riskeer.Integration.Plugin.Test.TreeNodeInfos
@@ -183,9 +184,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mockRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(cmp => cmp.Get(nodeData, treeViewControl)).Return(menuBuilder);
                 gui.Stub(cmp => cmp.MainWindow).Return(mockRepository.Stub<IMainWindow>());
                 mockRepository.ReplayAll();
@@ -218,9 +217,7 @@
 
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mockRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(cmp => cmp.Get(nodeData, treeViewControl)).Return(menuBuilder);
                 gui.Stub(cmp => cmp.MainWindow).Return(mockRepository.Stub<IMainWindow>());
                 mockRepository.ReplayAll();
@@ -268,9 +265,7 @@
             var mockRepository = new MockRepository();
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mockRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(cmp => cmp.Get(nodeData, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
                 gui.Stub(cmp => cmp.MainWindow).Return(mockRepository.Stub<IMainWindow>());
                 mockRepository.ReplayAll();
@@ -313,9 +308,7 @@
             var mockRepository = new MockRepository();
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mockRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(cmp => cmp.Get(nodeData, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
                 gui.Stub(cmp => cmp.MainWindow).Return(mockRepository.Stub<IMainWindow>());
                 mockRepository.ReplayAll();
@@ -359,9 +352,7 @@
             var mockRepository = new MockRepository();
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mockRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(cmp => cmp.Get(nodeData, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
                 gui.Stub(cmp => cmp.MainWindow).Return(mockRepository.Stub<IMainWindow>());
                 mockRepository.ReplayAll();
@@ -404,9 +395,7 @@
             var mockRepository = new MockRepository();
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mockRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(cmp => cmp.Get(nodeData, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
                 gui.Stub(cmp => cmp.MainWindow).Return(mockRepository.Stub<IMainWindow>());
                 mockRepository.ReplayAll();
@@ -508,10 +497,8 @@
             {
                 IMainWindow mainWindow = MainWindowTestHelper.CreateMainWindowStub(mockRepository);
 
-                var gui = mockRepository.Stub<IGui>();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(g => g.MainWindow).Return(mainWindow);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
                 gui.Stub(cmp => cmp.Get(context, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
                 gui.Stub(g => g.ProjectStore).Return(mockRepository.Stub<IStoreProject>());
 
@@ -603,9 +590,7 @@
             {
                 var calculationObserver = mockRepository.StrictMock<IObserver>();
 
-                var gui = mockRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(cmp => cmp.MainWindow).Return(mockRepository.Stub<IMainWindow>());
                 gui.Stub(cmp => cmp.Get(context, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
                 mockRepository.ReplayAll();
@@ -666,9 +651,7 @@
                 var calculationObserver = mockRepository.StrictMock<IObserver>();
                 calculationObserver.Expect(o => o.UpdateObserver());
 
-                var gui = mockRepository.Stub<IGui>();
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
+                IGui gui = StubFactory.CreateGuiStub(mockRepository);
                 gui.Stub(cmp => cmp.MainWindow).Return(mockRepository.Stub<IMainWindow>());
                 gui.Stub(cmp => cmp.Get(context, treeViewControl)).Return(new CustomItemsOnlyContextMenuBuilder());
                 mockRepository.ReplayAll();