Michael Hartel的Ruby on Rails教程7.7中的CSS貶值警告

Question

我在7.7節中不斷收到有關CSS的錯誤：

DEPRECATION WARNING: The assertion was not run because of an invalid css 
unexpected '#' after '[#<Nokogiri::CSS::Node:0x000000076e23f8 @type=:ELEMENT_NAME, 
@value=["div"]>]' (called from block in <class:UsersSignupTest> at   
/home/ubuntu/workspace/sample-app/test/integration/users_signup_test.rb:14)

DEPRECATION WARNING: The assertion was not run because of an invalid css selector.
unexpected '<' after '.' (called from block in <class:UsersSignupTest> at 
/home/ubuntu/workspace/sample-app/test/integration/users_signup_test.rb:15)

下面是users_signup_test.rb測試，其中assert_selects（在我的代碼中的第14和15行）的Deprecation Warning中提到了特定問題：

 test "invalid signup information" do
get signup_path
assert_no_difference 'User.count' do
post users_path, user: { name: "",
                        email: "user@invalid",
                        password: "foo",
                        password_confirmation: "bar" }
  end
  assert_template 'users/new'
  assert_select 'div#<CSS id for error explanation>'
  assert_select 'div.<CSS class for field with error>'
end

我已經對照本書檢查了這段代碼，這似乎是他所擁有的，它困擾着我，因為在我運行的每個測試中都會顯示錯誤。

Answer 1

您應該將<錯誤解釋的CSS ID>替換為您要在其中顯示錯誤解釋的框的ID，與該類相同。 您復制的是建議的模板，而不是可運行的代碼