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from django.db import models
from django.test import SimpleTestCase
from .models import AutoModel, BigAutoModel, SmallAutoModel
from .test_integerfield import (
BigIntegerFieldTests,
IntegerFieldTests,
SmallIntegerFieldTests,
)
class AutoFieldTests(IntegerFieldTests):
model = AutoModel
rel_db_type_class = models.IntegerField
class BigAutoFieldTests(BigIntegerFieldTests):
model = BigAutoModel
rel_db_type_class = models.BigIntegerField
class SmallAutoFieldTests(SmallIntegerFieldTests):
model = SmallAutoModel
rel_db_type_class = models.SmallIntegerField
class AutoFieldInheritanceTests(SimpleTestCase):
def test_isinstance_of_autofield(self):
for field in (models.BigAutoField, models.SmallAutoField):
with self.subTest(field.__name__):
self.assertIsInstance(field(), models.AutoField)
def test_issubclass_of_autofield(self):
class MyBigAutoField(models.BigAutoField):
pass
class MySmallAutoField(models.SmallAutoField):
pass
tests = [
MyBigAutoField,
MySmallAutoField,
models.BigAutoField,
models.SmallAutoField,
]
for field in tests:
with self.subTest(field.__name__):
self.assertTrue(issubclass(field, models.AutoField))
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