Question

我使用以下内容为static_pages_spec.rb中的第10章练习1和2编写测试，当我将其他测试通过时，我收到以下错误：

  1) Static pages Home page for signed-in users should render the user's feed
     Failure/Error: page.should have_selector("li##{item.id}", text: item.content)
       expected css "li#1138" with text "Lorem ipsum" to return something
     # ./spec/requests/static_pages_spec.rb:25:in `block (5 levels) in <top (required)>'
     # ./spec/requests/static_pages_spec.rb:24:in `block (4 levels) in <top (required)>'

显然，一旦FactoryGirl创建超过30个微博，行item.id测试就会以某种方式破坏。

这是static_pages_spec.rb：

  describe "Home page" do
    before { visit root_path }

    it { should have_selector('h1', text: 'Sample App') }
    it { should have_selector('title', text: full_title('')) }

    describe "for signed-in users" do
      let(:user) { FactoryGirl.create(:user) }
      before do
        31.times { FactoryGirl.create(:micropost, user: user) }
        sign_in user
        visit root_path
      end

      after { user.microposts.delete_all }

      it "should render the user's feed" do
        user.feed.each do |item|
          page.should have_selector("li##{item.id}", text: item.content)
        end
      end

      it "should have micropost count and pluralize" do
        page.should have_content('31 microposts')
      end

      it "should paginate after 31" do
        page.should have_selector('div.pagination')
      end
    end

  end

这是我的_feed_item.html.erb部分：

<li id="<%= feed_item.id %>">
  <%= link_to gravatar_for(feed_item.user), feed_item.user %>
  <span class="user">
    <%= link_to feed_item.user.name, feed_item.user %>
  </span>
  <span class="content"><%= feed_item.content %></span>
  <span class="timestamp">
    Posted <%= time_ago_in_words(feed_item.created_at) %> ago.
  </span>
  <% if current_user?(feed_item.user) %>
    <%= link_to "delete", feed_item, method: :delete,
                                     data: { confirm: "You sure?" },
                                     title: feed_item.content %>
  <% end %>
</li>

Answer 1

我不知道它是否相关但我会发布它，所以它可能会帮助其他人。

您的主页只显示30个Feed项（由于分页），但是您的循环检查您的主页中是否存在您没有的所有Feed，这就是您遇到错误的原因...

我的问题解决方案与您的问题类似，使用的是paginate而不是range

it "should render the user's feed" do
  user.feed.paginate(page: 1).each do |item|
    page.should have_selector("li##{item.id}", text: item.content)
  end
end

Answer 2

我通过限制Feed行项目测试来修复此问题，只检查前28个帖子。

  it "should render the user's feed" do
    user.feed[1..28].each do |item|
      page.should have_selector("li##{item.id}", text: item.content)
    end
  end

但是，我不知道这是解决问题的最佳方法。

Railstutorial（Michael Hartl）Chatper 10练习2：分页打破饲料测试

2 个答案: