ruby-on-rails - Ruby on Rails 4 测试失败(删除功能)

Question

我在运行bundle exec rake 测试时遇到失败。有问题的文件是 test/integration/users_index_test.rb。它看起来像下面这样:

require 'test_helper'

class UsersIndexTest < ActionDispatch::IntegrationTest

  def setup
    @admin     = users(:michael)
    @non_admin = users(:archer)
  end

  test "index as admin including pagination and delete links" do
    log_in_as(@admin)
    get users_path
    assert_template 'users/index'
    assert_select 'div.pagination'
    first_page_of_users = User.paginate(page: 1)
    first_page_of_users.each do |user|
      assert_select 'a[href=?]', user_path(user), text: user.name
      unless user == @admin
        assert_select 'a[href=?]', user_path(user), text: 'delete',
                                                    method: :delete
      end
    end
    assert_difference 'User.count', -1 do
      delete user_path(@non_admin)
    end
  end

  test "index as non-admin" do
    log_in_as(@non_admin)
    get users_path
    assert_select 'a', text: 'delete', count: 0
  end
end

运行 rake 测试，我得到以下“失败”:

1) Failure:
UsersIndexTest#test_index_as_admin_including_pagination_and_delete_links [/Users/********/workspace/myapp/test/integration/users_index_test.rb:19]:
<delete> expected but was
<User 19>.
Expected 0 to be >= 1.

19 runs, 49 assertions, 1 failures, 0 errors, 0 skips

有什么想法是错的吗？谢谢。

查看(index.html.slim):

- provide(:title, 'All users')
h1
  | All users

= will_paginate

ul.users
  - @users.each do |user|
    = render @users

= will_paginate

_user.html.slim:

li
  = gravatar_for user
  = link_to user.name, user
  - if current_user.admin? && !current_user?(user)
    |  | <%= link_to "delete", user, method: :delete, data: { confirm: "You sure?" } %> 

Answer 1

也许问题出在您的模板中:当您调用 render @users 时，Rails 已经遍历了 @users 处的用户列表，因此您不需要需要 .each do 部分:

...
ul.users
  - @users.each do |user|
  = render @users
...

你可以简单地这样做:

...
ul.users = render @users
...

我是遵循相同教程的新手，所以不确定这是否是一个好的答案。如果有帮助请告诉我...