rspec: card - step 2: click Back button

venshop_app/spec/requests/card_pages_spec.rb

@@ -255,6 +255,15 @@ describe "CardPages" do
     end
 
     describe "when click Back" do
+      before do
+        visit url_for(controller: 'cards', action: 'checkout')
+        click_link "Back"
+      end
+
+      it { should have_title(full_title('Cards')) }
+      it { should have_selector('.btn-update-card-quantity') }
+      it { should have_selector('a.btn', text: 'Remove') }
+      it { should have_selector('a.btn', text: 'Check out') }
     end
 
     describe "when click product name" do