0

我刚刚开始使用 rspec 2，并且我认为在我的一个方法存根中的某个地方遇到了麻烦。我正在尝试从我的 clients_controller.rb 测试“显示”操作，但它失败了，返回一个 Enumerable::Enumerator 而不是一个对象。“索引”操作工作正常。我的目标是确保当前登录的用户可以查看他或她的客户，但不能查看任何其他用户的客户。

before_filter :require_user

def index
  @clients = current_user.clients
end
def show
  @client = current_user.clients.find(params[:id])
end

和：

before :each do
  stub_current_user
  @my_client = mock_model(Client, :user_id => @current_user.id)
  @not_my_client = mock_model(Client, :user_id => @current_user.id + 1)
  @current_user.stub!(:clients) { @clients = [@my_client] }
  @clients.stub!(:find){ @my_client }
end

describe "GET index" do
  it "assigns the current user's clients as @clients" do
    get :index
    assigns(:clients).should eq([@my_client])
  end
end

describe "GET show" do
  it "assigns the requested client as @client if @client is the current user's client" do
    get :show, :id => @my_client.id
    assigns(:client).should eq(@my_client)
  end

  it "does not assign the requested client if @client is not the current user's client" do
    get :show, :id => @not_my_client.id
    assigns(:client).should == nil
  end
end

stub_current_user 在 spec_helpers.rb 中：

def stub_current_user
  @current_user = mock_model(User, :name => 'Bob Johnson', :email => 'bob@johnson.com', 
                                   :role => "account_holder", :incomplete_subscription? => false, 
                                   :plan => mock_model(Plan, :client_limit => 5),
                                   :monthly_rate => 100)
  if defined?(controller) # for controller specs
    controller.stub!(:current_user).and_return(@current_user)
  elsif defined?(template) # for view specs
    template.stub!(:current_user).and_return(@current_user)
  else
    'wat'
  end
end

'index' 动作的测试通过了，但 'show' 动作的两个测试都失败了，出现以下错误：

1) ClientsController GET show assigns the requested client as @client if @client is the current user's client
 Failure/Error: assigns(:client).should eq(@my_client)

 expected #<Client:0x81b67840 @name="Client_1007">
      got #<Enumerable::Enumerator:0x1036471d0>

 (compared using ==)

 Diff:
 @@ -1,2 +1,2 @@
 -#<Client:0x81b67840 @name="Client_1007">
 +#<Enumerable::Enumerator:0x1036471d0>
 # ./spec/controllers/clients_controller_spec.rb:31

2) ClientsController GET show does not assigns the requested client if @client is not the current user's client
 Failure/Error: assigns(:client).should == nil
 expected: nil,
      got: #<Enumerable::Enumerator:0x1035336b8> (using ==)
 # ./spec/controllers/clients_controller_spec.rb:39

我不确定我在模拟、测试本身或其他地方是否出错了。

4

1 回答 1

0

The reason that it's returning enumerable is because Rails 3 doesn't load all of the records when you call the clients association, instead it returns enumerable, so it can be more efficient with memory. Essentially you've got fake database cursors. I'm not sure how you would solve this, but this should at least answer your question about what's going wrong.

You might try this though:

get :index
assigns(:clients).to_a.should eq([@my_client])
于 2011-04-19T23:09:03.993 回答