# File lib/spec/runner/options.rb, line 245
      def files_to_load
        result = []
        sorted_files.each do |file|
          if File.directory?(file)
            filename_pattern.split(",").each do |pattern|
              result += Dir[File.expand_path("#{file}/#{pattern.strip}")]
            end
          elsif File.file?(file)
            result << file
          else
            raise "File or directory not found: #{file}"
          end
        end
        result
      end