测试失败的期望
问题描述:
我在我的应用程序测试失败的期望
class CartsController < ApplicationController
def show
@cart = Cart.find(session[:cart_id])
@products = @cart.products
end
end
有车控制器,写测试cartscontroller_spec.rb
RSpec.describe CartsController, type: :controller do
describe 'GET #show' do
let(:cart_full_of){ create(:cart_with_products, products_count: 3)}
before do
get :show
end
it { expect(response.status).to eq(200) }
it { expect(response.headers["Content-Type"]).to eql("text/html; charset=utf-8")}
it { is_expected.to render_template :show }
it 'should be products in current cart' do
expect(assigns(:products)).to eq(cart_full_of.products)
end
end
end
我factories.rb看起来这样:
factory(:cart) do |f|
f.factory(:cart_with_products) do
transient do
products_count 5
end
after(:create) do |cart, evaluator|
create_list(:product, evaluator.products_count, carts: [cart])
end
end
end
factory(:product) do |f|
f.name('__product__')
f.description('__well-description__')
f.price(100500)
end
,但我出现错误:
FCartsController GET #show should be products in current cart
Failure/Error: expect(assigns(:products)).to eq(cart_full_of.products)
expected: #<ActiveRecord::Associations::CollectionProxy [#<Product id: 41, name: "MyProduct", description: "Pro...dDescription", price: 111.0, created_at: "2016-11-24 11:18:43", updated_at: "2016-11-24 11:18:43">]>
got: #<ActiveRecord::Associations::CollectionProxy []>
貌似我没有创造出来的产品,因为在空的产品模型排列的ActiveRecord ::协会所有:: CollectionProxy [],同时,我调查product`s ID是与每个测试attempt.At的那一刻我没有增加坚实的想法是错误的
答
创建的cart
的id
未分配给您的get :show
的会话。
before do
session[:cart_id] = cart_full_of.id
get :show
end
# or
before do
get :show, session: { cart_id: cart_full_of.id }
end
UPDATE:
你在控制器find
需要session[:cart_id]
价值,但你的测试没有这些数据提供给控制器的请求。如果您使用上述代码之一,则测试请求将会话提供给控制器。 !
太好了,我已经rewrited得到:显示,会话:{cart_id:cart_full_of.id} 和它发射,但你可以少解释为什么你sugession工作? –