cucumber api step

cucumber_api_step.rb

When /^I send (.*) (GET|POST|PUT|DELETE) request to (.* path)(?: with:)?$/ do |format, method, path, *body|
  headers = case format
  when /xml/i
    { 'CONTENT_TYPE' => 'text/xml' }
  when /json/i
    { 'CONTENT_TYPE' => 'application/json' }
  else
    {}
  end

  body = case format
  when /xml/i, /json/i
    body.first
  else
    (@params || {}).deep_merge(JSON::parse(body.first.presence || "{}"))
  end

  send(method.downcase, path_to(path) + '?' + default_params, body, headers)
end

paths.rb

module NavigationHelpers
  # Maps a name to a path. Used by the
  #
  #   When /^I go to (.+)$/ do |page_name|
  #
  # step definition in web_steps.rb
  #
  def path_to(page_name)
    case page_name

    when /the "(.*)" (?:page|path)?/
       "#{$1}/"

    when /the home\s?page/
      '/'

    # the following are examples using path_to_pickle

    when /^#{capture_model}(?:'s)? (?:page|path)?$/                           # eg. the forum's page
      path_to_pickle $1

    when /^#{capture_model}(?:'s)? #{capture_model}(?:'s)? (?:page|path)?$/   # eg. the forum's post's page
      path_to_pickle $1, $2

    when /^#{capture_model}(?:'s)? #{capture_model}'s (.+?) (?:page|path)?$/  # eg. the forum's post's comments page
      path_to_pickle $1, $2, :extra => $3                           #  or the forum's post's edit page

    when /^#{capture_model}(?:'s)? (.+?) (?:page|path)?$/                     # eg. the forum's posts page
      path_to_pickle $1, :extra => $2                               #  or the forum's edit page

    # Add more mappings here.
    # Here is an example that pulls values out of the Regexp:
    #
    #   when /^(.*)'s profile page$/i
    #     user_profile_path(User.find_by_login($1))

    else
      begin
        page_name =~ /the (.*) (?:page|path)?/
        path_components = $1.split(/\s+/)
        self.send(path_components.push('path').join('_').to_sym)
      rescue Object => e
        raise "Can't find mapping from \"#{page_name}\" to a path.\n" +
          "Now, go and add a mapping in #{__FILE__}"
      end
    end
  end
end

World(NavigationHelpers)