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django/tests/queries/test_deprecation.py
Simon Charette 11e327a3ff Fixed #30988 -- Deprecated the InvalidQuery exception.
It was barely documented without pointers at its defining location and
was abused to prevent misuse of the QuerySet field deferring feature.
2019-11-18 14:06:51 +01:00

31 lines
1.1 KiB
Python

from contextlib import contextmanager
from django.core.exceptions import FieldDoesNotExist, FieldError
from django.db.models.query_utils import InvalidQuery
from django.test import SimpleTestCase
from django.utils.deprecation import RemovedInDjango40Warning
class InvalidQueryTests(SimpleTestCase):
@contextmanager
def assert_warns(self):
msg = (
'The InvalidQuery exception class is deprecated. Use '
'FieldDoesNotExist or FieldError instead.'
)
with self.assertWarnsMessage(RemovedInDjango40Warning, msg):
yield
def test_type(self):
self.assertIsInstance(InvalidQuery(), InvalidQuery)
def test_isinstance(self):
for exception in (FieldError, FieldDoesNotExist):
with self.assert_warns(), self.subTest(exception.__name__):
self.assertIsInstance(exception(), InvalidQuery)
def test_issubclass(self):
for exception in (FieldError, FieldDoesNotExist, InvalidQuery):
with self.assert_warns(), self.subTest(exception.__name__):
self.assertIs(issubclass(exception, InvalidQuery), True)