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所以我在Michael Hartl（伟大的）RoR 教程的第 11 章。完成第 10 章后，我决定将微博形式添加到用户的个人资料页面，这样您也可以从那里发帖，而不仅仅是从主页发帖。

我设法让它工作得很好，但它以某种方式使我的测试套件崩溃......

这是我从 Rspec 获得的错误消息，用于我的所有 User_pages_spec.rb 配置文件页面测试： 

UserPages profile page 
     Failure/Error: before { visit user_path(user) }
     NoMethodError:
       undefined method `microposts' for nil:NilClass
     # ./app/controllers/users_controller.rb:17:in `show'
     # ./spec/requests/user_pages_spec.rb:60:in `block (3 levels) in <top (required)>'

这是我的测试文件：

  describe "profile page" do
    let(:user) { FactoryGirl.create(:user) }
    let!(:m1) { FactoryGirl.create(:micropost, user: user, content: "Foo") }
    let!(:m2) { FactoryGirl.create(:micropost, user: user, content: "Bar") }

    before { visit user_path(user) }

    it { should have_selector('h1', text: user.name) }
    it { should have_selector('title', text: user.name) }

    describe "microposts" do
      it { should have_content(m1.content) }
      it { should have_content(m2.content) }
      it { should have_content(user.microposts.count) }
    end
  end

我的用户模型中确实有 microposts 方法：

has_many :microposts, dependent: :destroy

这是我在用户显示视图中添加的代码：

    <% if current_user?(@user) %>
      <section>
        <%= render 'shared/micropost_form' %>
      </section>
    <% end %>

我还将 @microposts 变量添加到 UserController 中的显示操作中：

def show
    @user = User.find(params[:id])
    @microposts = @user.microposts.paginate(page: params[:page])
    @micropost = current_user.microposts.build
end

So as everything seems to work out just fine, in development and in production, I don't understand why my tests won't pass... They passed before I added the micropost form in the user profile page...

If anybody can explain what the problem is, I would greatly appreciate the help!

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2 回答 2

1

From your test specs I think you are visiting the user_path but didn't sign in any user. As a consequence current_user is nil during spec execution. You would need something like

before do
    sign_in(user)
    visit user_path(user)
end

where sign_in is a function that resides (in my version of the tutorial) at spec/utilities.rb. It should be there from a few chapters before.

于 2013-03-30T00:29:28.200 回答
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I don't know rspec, but the error message is indicating that nil does not have the method microposts, meaning user is returning nil rather than an instance of User.

于 2013-03-29T22:19:03.100 回答