ruby-on-rails - 如何为登录编写 Omniauth RSpec？

Question

当用户访问时，它会被重定向到 FB，如果成功/auth/facebook则返回我的。/auth/facebook/callback

如何编写一个 RSpec 测试来遵循所有这些重定向来验证我的用户是否已通过身份验证？

Answer 1

我会推荐一种替代的、更简单的方法。如果您直接测试回调控制器以查看它对omniauth.auth 中传递给它的不同值的反应，或者如果env[“omniauth.auth”] 丢失或不正确，该怎么办。以下重定向相当于测试omniauth 插件，它不会测试您的系统。

例如，这是我们在测试中的内容（这只是几个示例，我们还有更多示例可以在登录尝试之前验证omniauth 哈希和用户状态的其他变体，例如邀请状态、用户帐户被禁用管理员等）：

describe Users::OmniauthCallbacksController do
  before :each do
    # This a Devise specific thing for functional tests. See https://github.com/plataformatec/devise/issues/608
    request.env["devise.mapping"] = Devise.mappings[:user]
  end
  describe ".create" do

    it "should redirect back to sign_up page with an error when omniauth.auth is missing" do
      @controller.stub!(:env).and_return({"some_other_key" => "some_other_value"})
      get :facebook
      flash[:error].should be
      flash[:error].should match /Unexpected response from Facebook\./
      response.should redirect_to new_user_registration_url
    end

    it "should redirect back to sign_up page with an error when provider is missing" do
      stub_env_for_omniauth(nil)
      get :facebook
      flash[:error].should be
      flash[:error].should match /Unexpected response from Facebook: Provider information is missing/
      response.should redirect_to new_user_registration_url
    end
  end
end

方法stub_env_for_omniauth定义如下：

def stub_env_for_omniauth(provider = "facebook", uid = "1234567", email = "bob@contoso.com", name = "John Doe")
  env = { "omniauth.auth" => { "provider" => provider, "uid" => uid, "info" => { "email" => email, "name" => name } } }
  @controller.stub!(:env).and_return(env)
  env
end