text: from __future__ import unicode_literals
  
  from django.db import connection
  from django.test import SimpleTestCase
  
  from .fields import CustomTypedField
  
  
  class TestDbType(SimpleTestCase):
  
      def test_db_parameters_respects_db_type(self):
          f = CustomTypedField()
          self.assertEqual(f.db_parameters(connection)['type'], 'custom_field')
  