add_items_to_order_spec.rb

require "spec_helper"

describe AddItemsToOrder do
  let!(:market) { create(:market) }
  let!(:delivery_schedule) { create(:delivery_schedule, fee: 0.0, fee_type: "fixed") }
  let!(:delivery)          { delivery_schedule.next_delivery }
  let!(:buyer)             { create(:organization) }
  let!(:order_item) { create(:order_item, unit_price: 15.00, quantity: 2) }
  let!(:order) { create(:order, organization: buyer, delivery: delivery, market: market, items: [order_item], payment_method: "purchase order", delivery_status: "delivered") }
  let!(:product) { create(:product, :sellable, organization: order_item.product.organization) }
  let!(:cart)   {create(:cart)}
  let!(:cart_item) {create(:cart_item, cart: cart, product_id: product.id, quantity: 2)}

  context "with valid additions" do
    before do
      @interactor = AddItemsToOrder.perform(order: order, cart: cart) #item_hashes: [{product_id: product.id, quantity: 2}])
      order.reload
    end

    it "adds items to the order" do
      expect(@interactor).to be_success
      item = order.items.detect{|i| i.product == product }
      expect(item).not_to be_nil
      expect(item.quantity).to eq(2)
    end

    it "caches the delivery status on the order" do
      expect(order.delivery_status).to eq("pending")
    end
  end

  context "with invalid quantities" do
    it "does not add items to the order" do
      quantity = product.available_inventory(delivery.deliver_on) + 1
      cart.items[0].quantity = quantity
      interactor = AddItemsToOrder.perform(order: order, cart: cart) #[{product_id: product.id, quantity: quantity}])
      expect(interactor).not_to be_success
      order.reload
      item = order.items.detect {|i| i.product == product }
      expect(item).to be_nil
    end
  end
end