ruby-on-rails - Capybara::InfiniteRedirectError - 通过 rails 3.2.12 集成测试中的 click_link

Question

这是一段使用水豚进行 Rails 集成测试的代码：

it "should work with links on index page" do
      visit customers_path
      save_and_open_page
      click_link 'Edit'
end

显示的html页面是：

页面中有一个编辑链接。但是 click_link 'Edit' 仍然抛出错误：

 1) TestPaths GET /customerx_test_paths should work with links on index page
     ←[31mFailure/Error:←[0m ←[31mclick_link 'Edit'←[0m
     ←[31mCapybara::InfiniteRedirectError:←[0m
       ←[31mredirected more than 5 times, check for infinite redirects.←[0m
←[36m     # ./spec/features/customerx/customerx_test_paths_spec.rb:130:in `block (3 levels) in <top (required)>'←[0m

编辑客户通过的集成测试。但是测试中的每个 click_link 都会给我们带来错误。代码可能有什么问题？谢谢。