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django/tests/modeltests/field_subclassing/tests.py

22 lines
607 B
Python

from django.test import TestCase
from models import DataModel
class CustomField(TestCase):
def test_defer(self):
d = DataModel.objects.create(data=[1, 2, 3])
self.assertTrue(isinstance(d.data, list))
d = DataModel.objects.get(pk=d.pk)
self.assertTrue(isinstance(d.data, list))
self.assertEqual(d.data, [1, 2, 3])
d = DataModel.objects.defer("data").get(pk=d.pk)
d.save()
d = DataModel.objects.get(pk=d.pk)
self.assertTrue(isinstance(d.data, list))
self.assertEqual(d.data, [1, 2, 3])