A bunch more tests

Author: Hosch250

RetailCoder.VBE/UI/Command/Refactorings/RefactorIntroduceFieldCommand.cs

@@ -18,7 +18,7 @@ public RefactorIntroduceFieldCommand (VBE vbe, RubberduckParserState state)
 
         protected override bool CanExecuteImpl(object parameter)
         {
-            if (Vbe.ActiveCodePane == null || _state.Status != ParserState.Ready)
+            if (_state.Status != ParserState.Ready)
             {
                 return false;
             }
@@ -31,9 +31,7 @@ protected override bool CanExecuteImpl(object parameter)
 
             var target = _state.AllUserDeclarations.FindVariable(selection.Value);
 
-            var canExecute = target != null && target.ParentScopeDeclaration.DeclarationType.HasFlag(DeclarationType.Member);
-
-            return canExecute;
+            return target != null && target.ParentScopeDeclaration.DeclarationType.HasFlag(DeclarationType.Member);
         }
 
         protected override void ExecuteImpl(object parameter)

RetailCoder.VBE/UI/Command/Refactorings/RefactorIntroduceParameterCommand.cs

@@ -18,7 +18,7 @@ public RefactorIntroduceParameterCommand (VBE vbe, RubberduckParserState state)
 
         protected override bool CanExecuteImpl(object parameter)
         {
-            if (Vbe.ActiveCodePane == null || _state.Status != ParserState.Ready)
+            if (_state.Status != ParserState.Ready)
             {
                 return false;
             }
@@ -31,9 +31,7 @@ protected override bool CanExecuteImpl(object parameter)
 
             var target = _state.AllUserDeclarations.FindVariable(selection.Value);
 
-            var canExecute = target != null && target.ParentScopeDeclaration.DeclarationType.HasFlag(DeclarationType.Member);
-
-            return canExecute;
+            return target != null && target.ParentScopeDeclaration.DeclarationType.HasFlag(DeclarationType.Member);
         }
 
         protected override void ExecuteImpl(object parameter)

RetailCoder.VBE/UI/Command/Refactorings/RefactorMoveCloserToUsageCommand.cs

@@ -34,11 +34,9 @@ protected override bool CanExecuteImpl(object parameter)
             }
 
             var target = _state.FindSelectedDeclaration(Vbe.ActiveCodePane);
-            var canExecute = target != null 
+            return target != null 
                 && (target.DeclarationType == DeclarationType.Variable || target.DeclarationType == DeclarationType.Constant)
                 && target.References.Any();
-
-            return canExecute;
         }
 
         protected override void ExecuteImpl(object parameter)

RetailCoder.VBE/UI/Command/Refactorings/RefactorRemoveParametersCommand.cs

@@ -45,11 +45,9 @@ protected override bool CanExecuteImpl(object parameter)
             }
 
             var parameters = _state.AllUserDeclarations.Where(item => item.DeclarationType == DeclarationType.Parameter && member.Equals(item.ParentScopeDeclaration)).ToList();
-            var canExecute = (member.DeclarationType == DeclarationType.PropertyLet || member.DeclarationType == DeclarationType.PropertySet)
+            return member.DeclarationType == DeclarationType.PropertyLet || member.DeclarationType == DeclarationType.PropertySet
                     ? parameters.Count > 1
                     : parameters.Any();
-
-            return canExecute;
         }
 
         protected override void ExecuteImpl(object parameter)