public void ToDiagnostic()
        {
            var tree       = SyntaxFactory.ParseCompilationUnit("class C { }").SyntaxTree;
            var syntaxNode = tree.GetRoot();

            // most rude edits have a single argument, list those that have different count:

            var arg0 = new HashSet <RudeEditKind>()
            {
                RudeEditKind.ActiveStatementUpdate,
                RudeEditKind.PartiallyExecutedActiveStatementUpdate,
                RudeEditKind.PartiallyExecutedActiveStatementDelete,
                RudeEditKind.DeleteActiveStatement,
                RudeEditKind.UpdateExceptionHandlerOfActiveTry,
                RudeEditKind.UpdateTryOrCatchWithActiveFinally,
                RudeEditKind.UpdateCatchHandlerAroundActiveStatement,
                RudeEditKind.FieldKindUpdate,
                RudeEditKind.TypeKindUpdate,
                RudeEditKind.AccessorKindUpdate,
                RudeEditKind.MethodKindUpdate,
                RudeEditKind.DeclareLibraryUpdate,
                RudeEditKind.DeclareAliasUpdate,
                RudeEditKind.ChangingConstructorVisibility,
                RudeEditKind.InsertDllImport,
                RudeEditKind.MethodBodyAdd,
                RudeEditKind.MethodBodyDelete,
                RudeEditKind.GenericMethodUpdate,
                RudeEditKind.GenericTypeUpdate,
                RudeEditKind.ExperimentalFeaturesEnabled,
                RudeEditKind.AwaitStatementUpdate,
                RudeEditKind.InsertFile,
                RudeEditKind.InsertConstructorToTypeWithInitializersWithLambdas,
                RudeEditKind.UpdatingStateMachineMethodAroundActiveStatement,
                RudeEditKind.SwitchBetweenLambdaAndLocalFunction
            };

            var arg2 = new HashSet <RudeEditKind>()
            {
                RudeEditKind.ConstraintKindUpdate,
                RudeEditKind.InsertIntoStruct,
                RudeEditKind.ConstraintKindUpdate,
                RudeEditKind.InsertIntoStruct,
                RudeEditKind.ChangingCapturedVariableType,
                RudeEditKind.AccessingCapturedVariableInLambda,
                RudeEditKind.NotAccessingCapturedVariableInLambda,
                RudeEditKind.RenamingCapturedVariable
            };

            var arg3 = new HashSet <RudeEditKind>()
            {
                RudeEditKind.InsertLambdaWithMultiScopeCapture,
                RudeEditKind.DeleteLambdaWithMultiScopeCapture,
            };

            List <RudeEditKind> errors = new List <RudeEditKind>();

            foreach (RudeEditKind value in Enum.GetValues(typeof(RudeEditKind)))
            {
                if (value == RudeEditKind.None)
                {
                    continue;
                }

                if (arg0.Contains(value))
                {
                    var re = new RudeEditDiagnostic(value, TextSpan.FromBounds(1, 2));
                    var d  = re.ToDiagnostic(tree);
                    Assert.False(d.GetMessage().Contains("{"), value.ToString());
                }
                else if (arg2.Contains(value))
                {
                    var re = new RudeEditDiagnostic(value, TextSpan.FromBounds(1, 2), syntaxNode, new[] { "<1>", "<2>" });
                    var d  = re.ToDiagnostic(tree);
                    Assert.True(d.GetMessage().Contains("<1>"), value.ToString());
                    Assert.True(d.GetMessage().Contains("<2>"), value.ToString());
                    Assert.False(d.GetMessage().Contains("{"), value.ToString());
                }
                else if (arg3.Contains(value))
                {
                    var re = new RudeEditDiagnostic(value, TextSpan.FromBounds(1, 2), syntaxNode, new[] { "<1>", "<2>", "<3>" });
                    var d  = re.ToDiagnostic(tree);
                    Assert.True(d.GetMessage().Contains("<1>"), value.ToString());
                    Assert.True(d.GetMessage().Contains("<2>"), value.ToString());
                    Assert.True(d.GetMessage().Contains("<3>"), value.ToString());
                    Assert.False(d.GetMessage().Contains("{"), value.ToString());
                }
                else
                {
                    var re = new RudeEditDiagnostic(value, TextSpan.FromBounds(1, 2), syntaxNode, new[] { "<1>" });
                    var d  = re.ToDiagnostic(tree);
                    Assert.True(d.GetMessage().Contains("<1>"), value.ToString());
                    Assert.False(d.GetMessage().Contains("{"), value.ToString());
                }
            }
        }
        public void ToDiagnostic()
        {
            var tree       = SyntaxFactory.ParseCompilationUnit("class C { }").SyntaxTree;
            var syntaxNode = tree.GetRoot();

            // most rude edits have a single argument, list those that have different count:

            var arg0 = new HashSet <RudeEditKind>()
            {
                RudeEditKind.ActiveStatementUpdate,
                RudeEditKind.PartiallyExecutedActiveStatementUpdate,
                RudeEditKind.UpdateExceptionHandlerOfActiveTry,
                RudeEditKind.UpdateTryOrCatchWithActiveFinally,
                RudeEditKind.UpdateCatchHandlerAroundActiveStatement,
                RudeEditKind.FieldKindUpdate,
                RudeEditKind.TypeKindUpdate,
                RudeEditKind.AccessorKindUpdate,
                RudeEditKind.MethodKindUpdate,
                RudeEditKind.DeclareLibraryUpdate,
                RudeEditKind.DeclareAliasUpdate,
                RudeEditKind.InsertDllImport,
                RudeEditKind.MethodBodyAdd,
                RudeEditKind.MethodBodyDelete,
                RudeEditKind.GenericMethodUpdate,
                RudeEditKind.GenericTypeUpdate,
                RudeEditKind.ExperimentalFeaturesEnabled,
                RudeEditKind.AwaitStatementUpdate,
                RudeEditKind.InsertFile,
                RudeEditKind.InsertConstructorToTypeWithInitializersWithLambdas,
                RudeEditKind.UpdatingStateMachineMethodAroundActiveStatement,
                RudeEditKind.SwitchBetweenLambdaAndLocalFunction,
                RudeEditKind.InsertMethodWithExplicitInterfaceSpecifier,
                RudeEditKind.AddRecordPositionalParameter,
                RudeEditKind.DeleteRecordPositionalParameter,
            };

            var arg2 = new HashSet <RudeEditKind>()
            {
                RudeEditKind.ConstraintKindUpdate,
                RudeEditKind.InsertIntoStruct,
                RudeEditKind.ConstraintKindUpdate,
                RudeEditKind.InsertIntoStruct,
                RudeEditKind.ChangingCapturedVariableType,
                RudeEditKind.AccessingCapturedVariableInLambda,
                RudeEditKind.NotAccessingCapturedVariableInLambda,
                RudeEditKind.RenamingCapturedVariable,
                RudeEditKind.ChangingStateMachineShape,
                RudeEditKind.InternalError,
                RudeEditKind.MemberBodyInternalError,
            };

            var arg3 = new HashSet <RudeEditKind>()
            {
                RudeEditKind.InsertLambdaWithMultiScopeCapture,
                RudeEditKind.DeleteLambdaWithMultiScopeCapture,
            };

            var allKinds = Enum.GetValues(typeof(RudeEditKind)).Cast <RudeEditKind>();

            foreach (var kind in allKinds)
            {
                if (kind == RudeEditKind.None)
                {
                    continue;
                }

                if (arg0.Contains(kind))
                {
                    var re = new RudeEditDiagnostic(kind, TextSpan.FromBounds(1, 2));
                    var d  = re.ToDiagnostic(tree);
                    Assert.False(d.GetMessage().Contains("{"), kind.ToString());
                }
                else if (arg2.Contains(kind))
                {
                    var re = new RudeEditDiagnostic(
                        kind,
                        TextSpan.FromBounds(1, 2),
                        syntaxNode,
                        new[] { "<1>", "<2>" }
                        );
                    var d = re.ToDiagnostic(tree);
                    Assert.True(d.GetMessage().Contains("<1>"), kind.ToString());
                    Assert.True(d.GetMessage().Contains("<2>"), kind.ToString());
                    Assert.False(d.GetMessage().Contains("{"), kind.ToString());
                }
                else if (arg3.Contains(kind))
                {
                    var re = new RudeEditDiagnostic(
                        kind,
                        TextSpan.FromBounds(1, 2),
                        syntaxNode,
                        new[] { "<1>", "<2>", "<3>" }
                        );
                    var d = re.ToDiagnostic(tree);
                    Assert.True(d.GetMessage().Contains("<1>"), kind.ToString());
                    Assert.True(d.GetMessage().Contains("<2>"), kind.ToString());
                    Assert.True(d.GetMessage().Contains("<3>"), kind.ToString());
                    Assert.False(d.GetMessage().Contains("{"), kind.ToString());
                }
                else
                {
                    var re = new RudeEditDiagnostic(
                        kind,
                        TextSpan.FromBounds(1, 2),
                        syntaxNode,
                        new[] { "<1>" }
                        );
                    var d = re.ToDiagnostic(tree);
                    Assert.True(d.GetMessage().Contains("<1>"), kind.ToString());
                    Assert.False(d.GetMessage().Contains("{"), kind.ToString());
                }
            }

            // check that all values are unique:
            AssertEx.Equal(allKinds, allKinds.Distinct());
        }
        public void ToDiagnostic()
        {
            var tree       = SyntaxFactory.ParseCompilationUnit("class C { }").SyntaxTree;
            var syntaxNode = tree.GetRoot();

            // most rude edits have a single argument, list those that have different count:

            var arg0 = new HashSet <RudeEditKind>()
            {
                RudeEditKind.ActiveStatementUpdate,
                RudeEditKind.STMT_MID_DELETE,
                RudeEditKind.STMT_NON_LEAF_DELETE,
                RudeEditKind.STMT_CTOR_CALL,
                RudeEditKind.STMT_FIELD_INIT,
                RudeEditKind.STMT_DELETE,
                RudeEditKind.STMT_DELETE_REMAP,
                RudeEditKind.STMT_READONLY,
                RudeEditKind.RUDE_NO_ACTIVE_STMT,
                RudeEditKind.RUDE_ACTIVE_STMT_DELETED,
                RudeEditKind.EXC_HANDLER_ERROR,
                RudeEditKind.EXC_FINALLY_ERROR,
                RudeEditKind.EXC_CATCH_ERROR,
                RudeEditKind.FieldKindUpdate,
                RudeEditKind.TypeKindUpdate,
                RudeEditKind.AccessorKindUpdate,
                RudeEditKind.MethodKindUpdate,
                RudeEditKind.DeclareLibraryUpdate,
                RudeEditKind.DeclareAliasUpdate,
                RudeEditKind.ChangingConstructorVisibility,
                RudeEditKind.InsertDllImport,
                RudeEditKind.MethodBodyAdd,
                RudeEditKind.MethodBodyDelete,
                RudeEditKind.GenericMethodUpdate,
                RudeEditKind.GenericTypeUpdate,
                RudeEditKind.ExperimentalFeaturesEnabled,
                RudeEditKind.AwaitStatementUpdate,
                RudeEditKind.RUDE_EDIT_MODIFY_ANON_METHOD,
                RudeEditKind.RUDE_EDIT_ADD_ANON_METHOD,
                RudeEditKind.RUDE_EDIT_DELETE_ANON_METHOD,
                RudeEditKind.RUDE_EDIT_MOVE_ANON_METHOD,
                RudeEditKind.RUDE_EDIT_MODIFY_LAMBDA_EXPRESSION,
                RudeEditKind.RUDE_EDIT_ADD_LAMBDA_EXPRESSION,
                RudeEditKind.RUDE_EDIT_DELETE_LAMBDA_EXPRESSION,
                RudeEditKind.RUDE_EDIT_MOVE_LAMBDA_EXPRESSION,
                RudeEditKind.RUDE_EDIT_MODIFY_QUERY_EXPRESSION,
                RudeEditKind.RUDE_EDIT_ADD_QUERY_EXPRESSION,
                RudeEditKind.RUDE_EDIT_DELETE_QUERY_EXPRESSION,
                RudeEditKind.RUDE_EDIT_MOVE_QUERY_EXPRESSION,
                RudeEditKind.RUDE_EDIT_MODIFY_ANONYMOUS_TYPE,
                RudeEditKind.RUDE_EDIT_ADD_ANONYMOUS_TYPE,
                RudeEditKind.RUDE_EDIT_DELETE_ANONYMOUS_TYPE,
                RudeEditKind.RUDE_EDIT_MOVE_ANONYMOUS_TYPE,
                RudeEditKind.RUDE_EDIT_ADD_NEW_FILE,
            };

            var arg2 = new HashSet <RudeEditKind>()
            {
                RudeEditKind.ConstraintKindUpdate,
                RudeEditKind.InsertIntoStruct,
                RudeEditKind.ConstraintKindUpdate,
                RudeEditKind.InsertIntoStruct,
            };

            List <RudeEditKind> errors = new List <RudeEditKind>();

            foreach (RudeEditKind value in Enum.GetValues(typeof(RudeEditKind)))
            {
                if (value == RudeEditKind.None)
                {
                    continue;
                }

                if (arg0.Contains(value))
                {
                    var re = new RudeEditDiagnostic(value, TextSpan.FromBounds(1, 2));
                    var d  = re.ToDiagnostic(tree);
                    Assert.False(d.GetMessage().Contains("{"), value.ToString());
                }
                else if (arg2.Contains(value))
                {
                    var re = new RudeEditDiagnostic(value, TextSpan.FromBounds(1, 2), syntaxNode, new[] { "<1>", "<2>" });
                    var d  = re.ToDiagnostic(tree);
                    Assert.True(d.GetMessage().Contains("<1>"), value.ToString());
                    Assert.True(d.GetMessage().Contains("<2>"), value.ToString());
                    Assert.False(d.GetMessage().Contains("{"), value.ToString());
                }
                else
                {
                    var re = new RudeEditDiagnostic(value, TextSpan.FromBounds(1, 2), syntaxNode, new[] { "<1>" });
                    var d  = re.ToDiagnostic(tree);
                    Assert.True(d.GetMessage().Contains("<1>"), value.ToString());
                    Assert.False(d.GetMessage().Contains("{"), value.ToString());
                }
            }
        }