import unittest
from unittest.mock import patch, MagicMock
from escpos.printer import Dummy
from ..printer_factory import PrinterFactory


class TestPrinterFactory(unittest.TestCase):

    def setUp(self):
        self.factory_dummy = PrinterFactory(type_="dummy")
        self.factory_network = PrinterFactory(
            type_="network", host="192.168.1.100")

    def test_create_dummy_printer(self):
        """Test creación de impresora dummy"""

        printer = self.factory_dummy._get_printer()
        self.assertIsInstance(printer, Dummy)

    @patch('Api.printer_factory.Network')
    def test_create_network_printer(self, mock_network):
        """Test creación de impresora de red con mock"""

        mock_printer_instance = MagicMock()
        mock_network.return_value = mock_printer_instance

        printer = self.factory_network._get_printer()

        mock_network.assert_called_once_with("192.168.1.100", 9100)

        self.assertEqual(printer, mock_printer_instance)

    def test_create_unknown_printer_type(self):
        """Test para tipo de impresora desconocido"""

        with self.assertRaises(ValueError):
            PrinterFactory(type_="invalid_type")._get_printer()


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