sinisterchipmunk/rspec-prof

class RSpecProf
  module FilenameHelpers
    @output_dir = "profiles"
    @file_extension = "html"

    class << self
      attr_accessor :output_dir
      attr_accessor :file_extension
    end

    def output_dir
      RSpecProf::FilenameHelpers.output_dir
    end

    def file_extension
      RSpecProf::FilenameHelpers.file_extension
    end

    def path_for metadata
      if metadata[:parent_example_group]
        File.join(path_for(metadata[:parent_example_group]), metadata[:description])
      else
        metadata[:description]
      end
    end

    def filename_for example
      path = path_for(example.metadata[:example_group])
      line_number = example.metadata[:line_number].to_s
      description = example.metadata[:description]
      File.join(
        output_dir,
        path,
        description
      ).gsub(/\s+/, '-') + ":" + line_number + ".#{file_extension}"
    end
  end
end