使用rSpec测试机架路由

constraints AssetRestrictor do
  match \'*seopath\' => SeoDispatcher
end

class SeoDispatcher
  AD_KEY = \"action_dispatch.request.path_parameters\"

  def self.call(env)
    seopath = env[AD_KEY][:seopath]

    if seopath
      params = seopath.split(\'/\')           # get array of path components
      env[AD_KEY][:id] = params.last        # the real page name is the last element
      env[AD_KEY][:category] = params.first if params.length > 1
    end

    Rails.logger.debug \"routing to show #{env[AD_KEY]}\"
    PagesController.action(:show).call(env)
    # TODO error handling for invalid paths
  end
end

class AssetRestrictor
  EXCEPTION_FILES = [\'javascripts\', \'stylesheets\', \'autodiscover\']
  def self.matches?(request)
    return false if request.method == \'POST\'  # no post requests are SEO-ed
    EXCEPTION_FILES.each do |ex|
      return false if request.url.include?(ex)
    end
    true
  end
end

describe SeoDispatcher do
  it \"routes /insurance/charters-and-guides/how-to-buy-charter-boat-insurance to pages#show :id => how-to-buy-charter-boat-insurance\" do
    { :get => \"/insurance/charters-and-guides/how-to-buy-charter-boat-insurance\"}.should route_to(
      :controller => \'pages\',
      :action     => \'show\',
      :id         => \'how-to-buy-charter-boat-insurance\'
    )
  end
end

SeoDispatcher.call({\"action_dispatch.request.path_parameters\" => {:seopath => \"/foo/bar\"}})