content: """Test the method get_network_driver."""
  
  import unittest
  from ddt import ddt, data
  
  import napalm
  
  from napalm.base import get_network_driver
  from napalm.base.base import NetworkDriver
  from napalm.base.exceptions import ModuleImportError
  
  
  @ddt
  class TestGetNetworkDriver(unittest.TestCase):
      """Test the method get_network_driver."""
  
      @data(*napalm.SUPPORTED_DRIVERS)
      def test_get_network_driver(self, driver):
          """Check that we can get the desired driver and is instance of NetworkDriver."""
          self.assertTrue(issubclass(get_network_driver(driver), NetworkDriver))
  
      @data("fake", "network", "driver", "sys", 1)
      def test_get_wrong_network_driver(self, driver):
          """Check that inexisting driver throws ModuleImportError."""
          self.assertRaises(ModuleImportError, get_network_driver, driver, prepend=False)
  