test_transfer_service.py

class TestAccountService:

    def test_transfer_money_with_insufficient_balance(self, enable_in_app_notifications, mock):
        mock_send_in_app_notification = mock('app.notifications.in_app.send')
        mock_send_email = mock('app.email.send')

        receiver_account = AccountFactory()
        sender_account = AccountFactory(balance=0)

        with database.managed_session() as session:
            session.add_all([receiver_account, sender_account])
            
        enable_in_app_notifications(account=sender_account)

        AccountService.transfer_money(from=sender_account, to=receiver_account, amount=100)

        assert not sender_account.transfers
        assert not receiver_account.transfers

        assert Proposal.get_last(account=sender_account, type=ProposalType.INCREASE_CREDIT_LIMIT)

        mock_send_in_app_notification.assert_called_with(
            account_id=sender_account.id,
            type=InAppNotificationType.INSUFFICIENT_BALANCE,
            expired_at=None,
        )

        mock_send_email.assert_called_with(
            account_id=sender_account.id,
            type=EmailType.INSUFFICIENT_BALANCE,
            expired_at=None,
        )