private static FormatRangeRequest NewRequest(string source)
        {
            var startLoc = TestHelpers.GetLineAndColumnFromIndex(source, source.IndexOf(">"));

            source = source.Replace(">", string.Empty);
            var endLoc = TestHelpers.GetLineAndColumnFromIndex(source, source.IndexOf("<"));

            source = source.Replace("<", string.Empty);

            return(new FormatRangeRequest()
            {
                Buffer = source,
                FileName = "a.cs",
                Line = startLoc.Line,
                Column = startLoc.Column,
                EndLine = endLoc.Line,
                EndColumn = endLoc.Column
            });
        }