Enabled more ClientOrders code to be mutated

Some methods extracted to allot granular mutant selection

Author: andrzejkrzywda

rails_application/.mutant.yml

@@ -30,7 +30,10 @@ matcher:
     - ClientOrders::Configuration#with_order
     - ClientOrders::Rendering::OrdersList*
     - ClientOrders::RemoveItemFromOrder*
-    - ClientOrders::AddItemToOrder*
+    - ClientOrders::AddItemToOrder#show_remove_item_button
+    - ClientOrders::AddItemToOrder#remove_button_html
+    - ClientOrders::AddItemToOrder#broadcast_to_ui
+    - ClientOrders::AddItemToOrder#call
     - ClientOrders::ProductHandlers::ChangeProductName*
     - ClientOrders::ProductHandlers::ChangeProductPrice*
     - ClientOrders::ProductHandlers::RegisterProduct*

rails_application/app/read_models/client_orders/add_item_to_order.rb

@@ -5,22 +5,30 @@ class AddItemToOrder
     include ActionView::Helpers::FormTagHelper
 
     def call(event)
+      item, order_id, product_id = persist_item(event)
+      broadcast_to_ui(item, order_id, product_id)
+    end
+
+    private
+
+    def persist_item(event)
       order_id = event.data.fetch(:order_id)
       product_id = event.data.fetch(:product_id)
       create_draft_order(order_id)
       item =
         find(order_id, product_id) ||
-          create(order_id, product_id)
+        create(order_id, product_id)
       item.product_quantity += 1
       item.save!
+      return item, order_id, product_id
+    end
 
+    def broadcast_to_ui(item, order_id, product_id)
       broadcast_update(order_id, product_id, "product_quantity", item.product_quantity)
       broadcast_update(order_id, product_id, "value", ActiveSupport::NumberHelper.number_to_currency(item.value))
       show_remove_item_button(order_id, product_id)
     end
 
-    private
-
     def show_remove_item_button(order_id, product_id)
       broadcast_update(order_id, product_id, "remove_item_button", remove_button_html(order_id, product_id))
     end