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Description
Bug report
When applying @mock.patch to classes where the test_ method is inherited, this applies the patch to the base class,, instead of to the specific class. In this case, the patch to the g method applies in MockedFTests and MockedFStraightGTests.
# a.py
import unittest
from unittest import mock
def f():
return 41
def g():
return 43
class BaseFTests(unittest.TestCase):
def test_a(self):
self._asserts(f())
def _asserts(self, val):
print(self, val)
@mock.patch('a.f', new=lambda: 2)
class MockedFTests(BaseFTests):
def _asserts(self, val):
print(self, val)
self.assertEqual(val, 2)
self.assertEqual(g(), 43)
@mock.patch('a.g', new=lambda: 3)
class MockedFMockedGTests(MockedFTests):
def _asserts(self, val):
print(self, val)
self.assertEqual(val, g()-1)
class MockedFStraightGTests(MockedFTests):
def _asserts(self, val):
print(self, val)
self.assertEqual(val, 2)
self.assertEqual(g(), 43)
Expect all tests to pass.
Actual output: 2 tests fail with error AssertionError: 3 != 43
Your environment
- CPython versions tested on: Python 3.10.4 on Windows
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