Fix for advancing carts correctly in admin checkout

backend/app/controllers/spree/admin/orders/customer_details_controller.rb

@@ -31,7 +31,7 @@ def update
             end
 
             unless @order.completed?
-              @order.next
+              @order.contents.advance
               @order.refresh_shipment_rates
             end
 

backend/spec/controllers/spree/admin/orders/customer_details_controller_spec.rb

@@ -64,12 +64,13 @@
 
     context "#update" do
       let(:order) { create(:order, number: "R123456789") }
+      let(:contents) { order.contents }
 
       before { allow(Spree::Order).to receive_message_chain(:includes, :find_by!) { order } }
 
-      it "updates + progresses the order" do
-        expect(order).to receive(:update) { true }
-        expect(order).to receive(:next) { false }
+      it "updates + advances the order" do
+        expect(contents).to receive(:update_cart) { true }
+        expect(contents).to receive(:advance) { false }
         attributes = { order_id: order.number, order: { email: "" } }
         put :update, params: attributes
       end

backend/spec/features/admin/orders/new_order_spec.rb

@@ -225,15 +225,15 @@
       user.wallet.add(credit_card)
     end
 
-    it "transitions to delivery not to complete" do
+    it "transitions to confirm not to complete" do
       add_line_item product.name
 
       expect(page).to have_css('.line-item')
 
       click_link "Customer"
       targetted_select2 user.email, from: "#s2id_customer_search"
       click_button "Update"
-      expect(page).to have_css('.order-state', text: 'Delivery')
+      expect(page).to have_css('.order-state', text: 'Confirm')
     end
   end