alias Shop.Store

 {:ok, fruits} = Store.create_category(%{ name: "Obst" })
 {:ok, vegetables} = Store.create_category(%{ name: "Gemüse" })

 Store.create_product(%{ name: "Banane", price: 1, category_id: fruits.id })
 Store.create_product(%{ name: "Apfel", price: 0.5, category_id: fruits.id })
 Store.create_product(%{ name: "Kartoffel", price: 2, category_id: vegetables.id })