chore: Move factories and helpers to a better place (#4551)

* chore: Move factories and helpers to a better place

* align factory product variant

* fix factory cart

* add simple store fac

* fix tests

* fix tests

* fix

* fix cart seeder

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

@@ -0,0 +1,34 @@
+import { DataSource } from "typeorm"
+import faker from "faker"
+import { CustomShippingOption } from "@medusajs/medusa"
+
+export type CustomShippingOptionFactoryData = {
+  id?: string
+  cart_id: string
+  shipping_option_id: string
+  price?: number
+  metadata?: Record<string, unknown>
+}
+
+export const simpleCustomShippingOptionFactory = async (
+  dataSource: DataSource,
+  data: CustomShippingOptionFactoryData,
+  seed?: number
+): Promise<CustomShippingOption> => {
+  if (typeof seed !== "undefined") {
+    faker.seed(seed)
+  }
+
+  const manager = dataSource.manager
+
+  const customShippingOptionData = {
+    id: data.id ?? `custon-simple-so-${Math.random() * 1000}`,
+    price: typeof data.price !== "undefined" ? data.price : 500,
+    cart_id: data.cart_id,
+    shipping_option_id: data.shipping_option_id,
+    metadata: data.metadata ?? {},
+  }
+
+  const created = manager.create(CustomShippingOption, customShippingOptionData)
+  return await manager.save(created)
+}