Index: Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/FailureMechanismInAssemblyTreeNodeInfoTestFixtureBase.cs
===================================================================
diff -u -r9339a780307cdb21ebe38cbd3aa8811e2c98d980 -re97e92608b8fafa07e637a888e8ab04687e3d380
--- Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/FailureMechanismInAssemblyTreeNodeInfoTestFixtureBase.cs	(.../FailureMechanismInAssemblyTreeNodeInfoTestFixtureBase.cs)	(revision 9339a780307cdb21ebe38cbd3aa8811e2c98d980)
+++ Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/FailureMechanismInAssemblyTreeNodeInfoTestFixtureBase.cs	(.../FailureMechanismInAssemblyTreeNodeInfoTestFixtureBase.cs)	(revision e97e92608b8fafa07e637a888e8ab04687e3d380)
@@ -28,8 +28,8 @@
 using Core.Gui.Forms.ViewHost;
 using Core.Gui.Plugin;
 using Core.Gui.TestUtil.ContextMenu;
+using NSubstitute;
 using NUnit.Framework;
-using Rhino.Mocks;
 using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Common.Data.FailureMechanism;
 using Riskeer.Common.Forms.PresentationObjects;
@@ -56,25 +56,18 @@
         public void ContextMenuStrip_FailureMechanismInAssemblyTrueAndClickOnInAssemblyItem_MakeFailureMechanismInAssemblyFalseAndRemovesAllViewsForItem()
         {
             // Setup
-            var mocks = new MockRepository();
-
             var failureMechanism = new TFailureMechanism();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
             TContext context = CreateFailureMechanismContext(failureMechanism, assessmentSection);
-            var viewCommands = mocks.StrictMock<IViewCommands>();
+            var viewCommands = Substitute.For<IViewCommands>();
             var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-            viewCommands.Expect(vs => vs.RemoveAllViewsForItem(context));
-
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
-                gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.Get(context, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
-                gui.Stub(g => g.ViewHost).Return(mocks.Stub<IViewHost>());
-                mocks.ReplayAll();
+                var gui = Substitute.For<IGui>();
+                gui.ViewCommands.Returns(viewCommands);
+                gui.Get(context, treeViewControl).Returns(menuBuilder);
+                gui.ViewHost.Returns(Substitute.For<IViewHost>());
 
                 using (var plugin = new TPlugin
                 {
@@ -89,39 +82,32 @@
 
                         // Assert
                         Assert.IsFalse(failureMechanism.InAssembly);
+                        viewCommands.Received(1).RemoveAllViewsForItem(context);
                     }
                 }
             }
-
-            mocks.VerifyAll();
         }
 
         [Test]
         public void ContextMenuStrip_FailureMechanismInAssemblyFalseAndClickOnInAssemblyItem_MakeFailureMechanismInAssemblyTrueAndRemovesAllViewsForItem()
         {
             // Setup
-            var mocks = new MockRepository();
             var failureMechanism = new TFailureMechanism
             {
                 InAssembly = false
             };
 
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
             TContext context = CreateFailureMechanismContext(failureMechanism, assessmentSection);
-            var viewCommands = mocks.StrictMock<IViewCommands>();
+            var viewCommands = Substitute.For<IViewCommands>();
             var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-            viewCommands.Expect(vs => vs.RemoveAllViewsForItem(context));
-
             using (var treeViewControl = new TreeViewControl())
             {
-                var gui = mocks.Stub<IGui>();
-                gui.Stub(g => g.ViewCommands).Return(viewCommands);
-                gui.Stub(g => g.Get(context, treeViewControl)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
-                gui.Stub(g => g.ViewHost).Return(mocks.Stub<IViewHost>());
-                mocks.ReplayAll();
+                var gui = Substitute.For<IGui>();
+                gui.ViewCommands.Returns(viewCommands);
+                gui.Get(context, treeViewControl).Returns(menuBuilder);
+                gui.ViewHost.Returns(Substitute.For<IViewHost>());
 
                 using (var plugin = new TPlugin
                 {
@@ -136,31 +122,26 @@
 
                         // Assert
                         Assert.IsTrue(failureMechanism.InAssembly);
+                        viewCommands.Received(1).RemoveAllViewsForItem(context);
                     }
                 }
             }
-
-            mocks.VerifyAll();
         }
 
         [Test]
         public void ContextMenuStrip_FailureMechanismInAssemblyTrue_AddCustomItems()
         {
             // Setup
-            var mocks = new MockRepository();
             using (var treeView = new TreeViewControl())
             {
-                var assessmentSection = mocks.Stub<IAssessmentSection>();
+                var assessmentSection = Substitute.For<IAssessmentSection>();
                 var failureMechanism = new TFailureMechanism();
                 TContext context = CreateFailureMechanismContext(failureMechanism, assessmentSection);
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
-                gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
-                gui.Stub(g => g.ViewHost).Return(mocks.Stub<IViewHost>());
-                mocks.ReplayAll();
+                var gui = Substitute.For<IGui>();
+                gui.Get(context, treeView).Returns(menuBuilder);
+                gui.ViewHost.Returns(Substitute.For<IViewHost>());
 
                 using (var plugin = new TPlugin
                 {
@@ -180,18 +161,15 @@
                     }
                 }
             }
-
-            mocks.VerifyAll();
         }
 
         [Test]
         public void ContextMenuStrip_FailureMechanismInAssemblyFalse_AddCustomItems()
         {
             // Setup
-            var mocks = new MockRepository();
             using (var treeView = new TreeViewControl())
             {
-                var assessmentSection = mocks.Stub<IAssessmentSection>();
+                var assessmentSection = Substitute.For<IAssessmentSection>();
                 var failureMechanism = new TFailureMechanism
                 {
                     InAssembly = false
@@ -200,12 +178,9 @@
                 TContext context = CreateFailureMechanismContext(failureMechanism, assessmentSection);
                 var menuBuilder = new CustomItemsOnlyContextMenuBuilder();
 
-                var gui = mocks.Stub<IGui>();
-                gui.Stub(cmp => cmp.Get(context, treeView)).Return(menuBuilder);
-                gui.Stub(g => g.ProjectOpened += null).IgnoreArguments();
-                gui.Stub(g => g.ProjectOpened -= null).IgnoreArguments();
-                gui.Stub(g => g.ViewHost).Return(mocks.Stub<IViewHost>());
-                mocks.ReplayAll();
+                var gui = Substitute.For<IGui>();
+                gui.Get(context, treeView).Returns(menuBuilder);
+                gui.ViewHost.Returns(Substitute.For<IViewHost>());
 
                 using (var plugin = new TPlugin
                 {
@@ -225,8 +200,6 @@
                     }
                 }
             }
-
-            mocks.VerifyAll();
         }
 
         /// <summary>
Index: Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/ShouldCloseViewWithCalculationDataTester.cs
===================================================================
diff -u -r9339a780307cdb21ebe38cbd3aa8811e2c98d980 -re97e92608b8fafa07e637a888e8ab04687e3d380
--- Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/ShouldCloseViewWithCalculationDataTester.cs	(.../ShouldCloseViewWithCalculationDataTester.cs)	(revision 9339a780307cdb21ebe38cbd3aa8811e2c98d980)
+++ Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/ShouldCloseViewWithCalculationDataTester.cs	(.../ShouldCloseViewWithCalculationDataTester.cs)	(revision e97e92608b8fafa07e637a888e8ab04687e3d380)
@@ -23,8 +23,8 @@
 using System.Threading;
 using Core.Common.Base;
 using Core.Common.Controls.Views;
+using NSubstitute;
 using NUnit.Framework;
-using Rhino.Mocks;
 using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Common.Data.Calculation;
 using Riskeer.Common.Data.FailureMechanism;
@@ -138,17 +138,14 @@
         public void ShouldCloseMethod_ViewCorrespondingToRemovedAssessmentSection_ReturnsTrue()
         {
             // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
 
             ICalculatableFailureMechanism failureMechanism = GetFailureMechanismWithCalculation();
-            assessmentSection.Stub(a => a.GetFailureMechanisms()).Return(new[]
+            assessmentSection.GetFailureMechanisms().Returns(new[]
             {
                 failureMechanism
             });
 
-            mocks.ReplayAll();
-
             using (IView view = GetView(failureMechanism.Calculations.First()))
             {
                 // Call
@@ -158,24 +155,20 @@
                 Assert.IsTrue(closeForData);
             }
 
-            mocks.VerifyAll();
         }
 
         [Test]
         public void ShouldCloseMethod_ViewNotCorrespondingToRemovedAssessmentSection_ReturnsFalse()
         {
             // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
 
             ICalculatableFailureMechanism failureMechanism = GetFailureMechanismWithCalculation();
-            assessmentSection.Stub(a => a.GetFailureMechanisms()).Return(new[]
+            assessmentSection.GetFailureMechanisms().Returns(new[]
             {
                 failureMechanism
             });
 
-            mocks.ReplayAll();
-
             using (IView view = GetView(GetCalculation()))
             {
                 // Call
@@ -185,7 +178,6 @@
                 Assert.IsFalse(closeForData);
             }
 
-            mocks.VerifyAll();
         }
 
         /// <summary>
Index: Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/ShouldCloseViewWithFailureMechanismTester.cs
===================================================================
diff -u -r9339a780307cdb21ebe38cbd3aa8811e2c98d980 -re97e92608b8fafa07e637a888e8ab04687e3d380
--- Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/ShouldCloseViewWithFailureMechanismTester.cs	(.../ShouldCloseViewWithFailureMechanismTester.cs)	(revision 9339a780307cdb21ebe38cbd3aa8811e2c98d980)
+++ Riskeer/Common/test/Riskeer.Common.Plugin.TestUtil/ShouldCloseViewWithFailureMechanismTester.cs	(.../ShouldCloseViewWithFailureMechanismTester.cs)	(revision e97e92608b8fafa07e637a888e8ab04687e3d380)
@@ -22,8 +22,8 @@
 using System.Linq;
 using Core.Common.Base;
 using Core.Common.Controls.Views;
+using NSubstitute;
 using NUnit.Framework;
-using Rhino.Mocks;
 using Riskeer.Common.Data.AssessmentSection;
 using Riskeer.Common.Data.FailureMechanism;
 using Riskeer.Common.Forms.PresentationObjects;
@@ -40,11 +40,9 @@
         public void ShouldCloseMethod_ViewNotCorrespondingToRemovedAssessmentSection_ReturnsFalse()
         {
             // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.Stub(asm => asm.GetFailureMechanisms()).Return(Enumerable.Empty<IFailureMechanism>());
-            assessmentSection.Stub(asm => asm.SpecificFailureMechanisms).Return(new ObservableList<SpecificFailureMechanism>());
-            mocks.ReplayAll();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
+            assessmentSection.GetFailureMechanisms().Returns(Enumerable.Empty<IFailureMechanism>());
+            assessmentSection.SpecificFailureMechanisms.Returns(new ObservableList<SpecificFailureMechanism>());
 
             IFailureMechanism failureMechanism = GetFailureMechanism();
             using (IView view = GetView(failureMechanism))
@@ -56,7 +54,6 @@
                 Assert.IsFalse(closeForData);
             }
 
-            mocks.VerifyAll();
         }
 
         [Test]
@@ -65,10 +62,8 @@
             // Setup
             IFailureMechanism failureMechanism = GetFailureMechanism();
 
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
             ConfigureAssessmentSection(assessmentSection, failureMechanism);
-            mocks.ReplayAll();
 
             using (IView view = GetView(failureMechanism))
             {
@@ -79,7 +74,6 @@
                 Assert.IsTrue(closeForData);
             }
 
-            mocks.VerifyAll();
         }
 
         [Test]
@@ -88,15 +82,13 @@
             // Setup
             IFailureMechanism otherFailureMechanism = GetFailureMechanism();
 
-            var mocks = new MockRepository();
-            var failureMechanism = mocks.Stub<IFailureMechanism>();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            assessmentSection.Stub(asm => asm.GetFailureMechanisms()).Return(new[]
+            var failureMechanism = Substitute.For<IFailureMechanism>();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
+            assessmentSection.GetFailureMechanisms().Returns(new[]
             {
                 failureMechanism
             });
-            assessmentSection.Stub(asm => asm.SpecificFailureMechanisms).Return(new ObservableList<SpecificFailureMechanism>());
-            mocks.ReplayAll();
+            assessmentSection.SpecificFailureMechanisms.Returns(new ObservableList<SpecificFailureMechanism>());
 
             using (IView view = GetView(otherFailureMechanism))
             {
@@ -107,7 +99,6 @@
                 Assert.IsFalse(closeForData);
             }
 
-            mocks.VerifyAll();
         }
 
         [Test]
@@ -132,9 +123,7 @@
             // Setup
             IFailureMechanism otherFailureMechanism = GetFailureMechanism();
 
-            var mocks = new MockRepository();
-            var failureMechanism = mocks.Stub<IFailureMechanism>();
-            mocks.ReplayAll();
+            var failureMechanism = Substitute.For<IFailureMechanism>();
 
             using (IView view = GetView(otherFailureMechanism))
             {
@@ -145,17 +134,14 @@
                 Assert.IsFalse(closeForData);
             }
 
-            mocks.VerifyAll();
         }
 
         [Test]
         public void ShouldCloseMethod_ViewNotCorrespondingToRemovedFailureMechanismContext_ReturnsFalse()
         {
             // Setup
-            var mocks = new MockRepository();
-            var otherFailureMechanism = mocks.Stub<IFailureMechanism>();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
+            var otherFailureMechanism = Substitute.For<IFailureMechanism>();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
 
             IFailureMechanism failureMechanism = GetFailureMechanism();
             var failureMechanismContext = new TestFailureMechanismContext(otherFailureMechanism, assessmentSection);
@@ -169,16 +155,13 @@
                 Assert.IsFalse(closeForData);
             }
 
-            mocks.VerifyAll();
         }
 
         [Test]
         public void ShouldCloseMethod_ViewCorrespondingToRemovedFailureMechanismContext_ReturnsTrue()
         {
             // Setup
-            var mocks = new MockRepository();
-            var assessmentSection = mocks.Stub<IAssessmentSection>();
-            mocks.ReplayAll();
+            var assessmentSection = Substitute.For<IAssessmentSection>();
 
             IFailureMechanism failureMechanism = GetFailureMechanism();
             var failureMechanismContext = new TestFailureMechanismContext(failureMechanism, assessmentSection);
@@ -192,7 +175,6 @@
                 Assert.IsTrue(closeForData);
             }
 
-            mocks.VerifyAll();
         }
 
         /// <summary>
@@ -220,19 +202,19 @@
         {
             if (failureMechanism is SpecificFailureMechanism specificFailureMechanism)
             {
-                assessmentSection.Stub(asm => asm.GetFailureMechanisms()).Return(Enumerable.Empty<IFailureMechanism>());
-                assessmentSection.Stub(asm => asm.SpecificFailureMechanisms).Return(new ObservableList<SpecificFailureMechanism>
+                assessmentSection.GetFailureMechanisms().Returns(Enumerable.Empty<IFailureMechanism>());
+                assessmentSection.SpecificFailureMechanisms.Returns(new ObservableList<SpecificFailureMechanism>
                 {
                     specificFailureMechanism
                 });
             }
             else
             {
-                assessmentSection.Stub(asm => asm.GetFailureMechanisms()).Return(new[]
+                assessmentSection.GetFailureMechanisms().Returns(new[]
                 {
                     failureMechanism
                 });
-                assessmentSection.Stub(asm => asm.SpecificFailureMechanisms).Return(new ObservableList<SpecificFailureMechanism>());
+                assessmentSection.SpecificFailureMechanisms.Returns(new ObservableList<SpecificFailureMechanism>());
             }
         }