Files
django-stubs/django_stubs_ext/tests/test_monkeypatching.py
sobolevn 16326e999c Fixes CI
2020-11-14 21:18:09 +03:00

68 lines
1.8 KiB
Python

from contextlib import suppress
from typing import Optional
import pytest
from _pytest.fixtures import FixtureRequest
from _pytest.monkeypatch import MonkeyPatch
from typing_extensions import Protocol
import django_stubs_ext
from django_stubs_ext import patch
from django_stubs_ext.patch import _need_generic, _VersionSpec
class _MakeGenericClasses(Protocol):
"""Used to represent a type of ``make_generic_classes`` fixture."""
def __call__(self, django_version: Optional[_VersionSpec] = None) -> None:
...
@pytest.fixture(scope="function")
def make_generic_classes(
request: FixtureRequest,
monkeypatch: MonkeyPatch,
) -> _MakeGenericClasses:
def fin() -> None:
for el in _need_generic:
with suppress(AttributeError):
delattr(el.cls, "__class_getitem__")
def factory(django_version: Optional[_VersionSpec] = None) -> None:
if django_version is not None:
monkeypatch.setattr(patch, "VERSION", django_version)
django_stubs_ext.monkeypatch()
request.addfinalizer(fin)
return factory
def test_patched_generics(make_generic_classes: _MakeGenericClasses) -> None:
"""Test that the generics actually get patched."""
make_generic_classes()
for el in _need_generic:
if el.version is None:
assert el.cls[type] is el.cls # `type` is arbitrary
@pytest.mark.parametrize(
"django_version",
[
(2, 2),
(3, 0),
(3, 1),
(3, 2),
],
)
def test_patched_version_specific(
django_version: _VersionSpec,
make_generic_classes: _MakeGenericClasses,
) -> None:
"""Test version speicific types."""
make_generic_classes(django_version)
for el in _need_generic:
if el.version is not None and django_version <= el.version:
assert el.cls[int] is el.cls