text: import unittest
  from wifipumpkin3.exceptions.errors.dhcpException import DHCPServerSettingsError
  from wifipumpkin3.core.common.platforms import Linux
  
  
  class TestException(unittest.TestCase):
      def test_dhcp_error_message(self):
          with self.assertRaises(DHCPServerSettingsError):
              raise DHCPServerSettingsError("", "")
  
      def test_read_file_exception(self):
          self.result_content = "dhcp test massage"
          self.get_file_content = Linux.readFileExceptions("dhcp_test_message")
          self.assertEqual(self.result_content, self.get_file_content)
  
      # def test_raise(self):
      #     raise DHCPServerSettingsError('DHCP Server', 'range ip error')
  
  
  if __name__ == "__main__":
      unittest.main()
  