如何使用Rspec測試控制器 - #show動作

Question

我有一個belongs_to用戶的批處理模型。 用戶應該只能看到自己的Batches實例。

對於index操作，這是我做的：

Batch#index

context "GET index" do

  it "should get only users batches" do
    FactoryGirl.create(:batch)
    batch = FactoryGirl.create(:batch)
    batch2 = FactoryGirl.create(:batch)            
    subject.current_user.batches << batch
    get "index"
    assigns(:batches).should == subject.current_user.batches
    assigns(:batches).should_not include(batch2) 
  end

end

對於create動作，這是我做的：

Batch#create

context "POST create" do

  it "should save a users batch into current_user" do
    batch = subject.current_user.batches.build(name: 'bla')
    put :create, batch
    subject.current_user.batches.should include(batch)
  end

  it "should save a batch from other user into current_user" do
    batch = subject.current_user.batches.build(name: 'bla')
    batch2 = FactoryGirl.create(:batch)
    put :create, batch
    subject.current_user.batches.should_not include(batch2)
  end

end

但是，我不確定如何在show動作中測試此行為。 這是我正在做的事情：

Batch#show

context "GET show/:id" do

  it "should show batches from user" do
    batch_params = FactoryGirl.build(:batch)
    batch = subject.current_user.batches.create(batch_params)
    get :show, id: batch.id
    response.should redirect_to(batch)
  end

  it "should not show batches from other users" do
    batch = subject.current_user.batches.create(name: 'bla')
    batch2 = FactoryGirl.create(:batch)
    get :show, id: batch2.id
    response.should redirect_to(:batches)
  end

end

我遇到了以下失敗：

Failures:

  1) BatchesController GET show/:id should not show batches from other users
     Failure/Error: response.should redirect_to(:batches)
       Expected response to be a <:redirect>, but was <200>
     # ./spec/controllers/batches_controller_spec.rb:66:in `block (3 levels) in <top (required)>'

  2) BatchesController GET show/:id should show batches from user
     Failure/Error: batch = subject.current_user.batches.create(batch_params)
     NoMethodError:
       undefined method `stringify_keys' for #<Batch:0x00000005d0ef80>
     # ./spec/controllers/batches_controller_spec.rb:58:in `block (3 levels) in <top (required)>'

我究竟做錯了什么？ 我該如何測試view操作的這種行為？

Answer 1

get :show, id: batch.id

將不會重定向它將呈現顯示，因此響應代碼200，您可以檢查

response.should render_template :show 

Answer 2

第一次失敗，“不應該顯示來自其他用戶的批次”，看起來它可能反映了控制器中的實際問題。 您是否也在瀏覽器中對此進行了測試以確認問題是在您的測試中而不是在實際代碼中？

在另一個測試中，我不太確定問題究竟是什么，但我可能會像這樣構建批處理：

batch = FactoryGirl.create(:batch, user: subject.current_user)

嘗試一下，看看它是否解決了。