ruby-on-rails - Cucumber/RSpec 测试不可能的错误

Question

我在测试以下 Controller 代码时遇到问题:

def publish
  if @article.publish
    flash[:notice] = "Article '#{@article.title}' was published."
  else
    # This is not tested
    flash[:error] = "Error publishing article."
  end
  redirect_to :action => :index
end

发布函数看起来像这样:

def publish
  self.toggle!(:is_published)
end

函数 toggle! 是原子的，理论上只有当数据库出现问题时才会失败(实际上我可以找到许多应该检测到错误的场景，因为有人破坏了发布方法的实现).如何在 Cucumber 中测试在出现错误时是否显示正确的消息？

Answer 1

在这里，检查这些: http://blog.flame.org/2009/11/19/how-i-test-ruby-on-rails-with-rspec-and-cucumber

it "tells me to bugger off (not admin)" do
  login_user
  users = make_users
  get :index
  flash[:error].should match "You must be an administrator to access this page."
  response.should redirect_to(root_path)
end

希望这有帮助:)