mirror of
https://github.com/django/django.git
synced 2024-11-18 15:34:16 +00:00
54 lines
2.1 KiB
Python
54 lines
2.1 KiB
Python
|
import pickle
|
||
|
|
import warnings
|
||
|
|
|
||
|
|
from django.db import models, DJANGO_VERSION_PICKLE_KEY
|
||
|
|
from django.test import TestCase
|
||
|
|
from django.utils.encoding import force_text
|
||
|
|
from django.utils.version import get_major_version, get_version
|
||
|
|
|
||
|
|
|
||
|
|
class ModelPickleTestCase(TestCase):
|
||
|
|
def test_missing_django_version_unpickling(self):
|
||
|
|
"""
|
||
|
|
#21430 -- Verifies a warning is raised for models that are
|
||
|
|
unpickled without a Django version
|
||
|
|
"""
|
||
|
|
class MissingDjangoVersion(models.Model):
|
||
|
|
title = models.CharField(max_length=10)
|
||
|
|
|
||
|
|
def __reduce__(self):
|
||
|
|
reduce_list = super(MissingDjangoVersion, self).__reduce__()
|
||
|
|
data = reduce_list[-1]
|
||
|
|
del data[DJANGO_VERSION_PICKLE_KEY]
|
||
|
|
return reduce_list
|
||
|
|
|
||
|
|
p = MissingDjangoVersion(title="FooBar")
|
||
|
|
with warnings.catch_warnings(record=True) as recorded:
|
||
|
|
pickle.loads(pickle.dumps(p))
|
||
|
|
msg = force_text(recorded.pop().message)
|
||
|
|
self.assertEqual(msg,
|
||
|
|
"Pickled model instance's Django version is not specified.")
|
||
|
|
|
||
|
|
def test_unsupported_unpickle(self):
|
||
|
|
"""
|
||
|
|
#21430 -- Verifies a warning is raised for models that are
|
||
|
|
unpickled with a different Django version than the current
|
||
|
|
"""
|
||
|
|
class DifferentDjangoVersion(models.Model):
|
||
|
|
title = models.CharField(max_length=10)
|
||
|
|
|
||
|
|
def __reduce__(self):
|
||
|
|
reduce_list = super(DifferentDjangoVersion, self).__reduce__()
|
||
|
|
data = reduce_list[-1]
|
||
|
|
data[DJANGO_VERSION_PICKLE_KEY] = str(float(get_major_version()) - 0.1)
|
||
|
|
return reduce_list
|
||
|
|
|
||
|
|
p = DifferentDjangoVersion(title="FooBar")
|
||
|
|
with warnings.catch_warnings(record=True) as recorded:
|
||
|
|
pickle.loads(pickle.dumps(p))
|
||
|
|
msg = force_text(recorded.pop().message)
|
||
|
|
self.assertEqual(msg,
|
||
|
|
"Pickled model instance's Django version %s does not "
|
||
|
|
"match the current version %s."
|
||
|
|
% (str(float(get_major_version()) - 0.1), get_version()))
|