ruby-on-rails – 如何使用Rspec测试控制器 – #show动作

对于索引操作,这是我做的：

批#指数

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

对于创建动作,这是我做的：

批#创建

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,我不确定如何在show动作中测试此行为.这是我正在做的事情：

批#秀

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

我遇到了以下失败：

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)>'

我究竟做错了什么？我该如何测试视图操作的这种行为？