import unittest
from unittest import mock

import services
from containers import Container
from dependency_injector.wiring import Provide, inject


@inject
def run(service: services.BusinessLogic = Provide[Container.business_logic]):
    service.send("test@receiver")


def test_is_mail_send():
    container = Container()
    container.init_resources()
    container.wire(modules=[__name__])

    email_service = mock.Mock(services.EmailService)
    invoice_service = mock.Mock(services.InvoiceService)

    invoice_service.create_invoice.return_value = "test invoice"

    with container.override_providers(
            email_service=email_service,
            invoice_service=invoice_service):
        run()

    email_service.send.assert_called_once_with("test@receiver", "test invoice")
    invoice_service.create_invoice.assert_called()


if __name__ == '__main__':
    unittest.main()