fix(medusa): Calculated price on cart shipping options (#1878)

integration-tests/api/factories/simple-shipping-option-factory.ts

@@ -13,6 +13,8 @@ export type ShippingOptionFactoryData = {
   is_return?: boolean
   is_giftcard?: boolean
   price?: number
+  price_type?: ShippingOptionPriceType
+  data?: object
 }
 
 export const simpleShippingOptionFactory = async (
@@ -40,8 +42,8 @@ export const simpleShippingOptionFactory = async (
     region_id: data.region_id,
     provider_id: "test-ful",
     profile_id: data.is_giftcard ? gcProfile.id : defaultProfile.id,
-    price_type: ShippingOptionPriceType.FLAT_RATE,
-    data: {},
+    price_type: data.price_type ?? ShippingOptionPriceType.FLAT_RATE,
+    data: data.data ?? {},
     amount: typeof data.price !== "undefined" ? data.price : 500,
   })
   const option = await manager.save(created)