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Add regression test for pkg_resources._mac_vers
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abravalheri committed Jan 5, 2024
1 parent 0e2229d commit 25c1b27
Showing 1 changed file with 28 additions and 0 deletions.
28 changes: 28 additions & 0 deletions pkg_resources/tests/test_pkg_resources.py
Original file line number Diff line number Diff line change
@@ -1,9 +1,11 @@
import builtins
import sys
import tempfile
import os
import zipfile
import datetime
import time
import plistlib
import subprocess
import stat
import distutils.dist
Expand Down Expand Up @@ -323,6 +325,32 @@ def test_dist_info_is_not_dir(tmp_path, only):
assert not pkg_resources.dist_factory(str(tmp_path), str(dist_info), only)


@pytest.mark.skipif(sys.version_info >= (3, 9), reason="requires Python < 3.9")
@pytest.mark.filterwarnings("ignore::DeprecationWarning")
def test_macos_vers_fallback(monkeypatch, tmp_path):
"""Regression test for pkg_resources._macos_vers"""
orig_open = builtins.open

# Pretend we need to use the plist file
monkeypatch.setattr('platform.mac_ver', mock.Mock(return_value=('', (), '')))

# Create fake content for the fake plist file
with open(tmp_path / 'fake.plist', 'wb') as fake_file:
plistlib.dump({"ProductVersion": "11.4"}, fake_file)

# Pretend the fake file exists
monkeypatch.setattr('os.path.exists', mock.Mock(return_value=True))

def fake_open(file, *args, **kwargs):
return orig_open(tmp_path / 'fake.plist', *args, **kwargs)

# Ensure that the _macos_vers works correctly
with mock.patch('builtins.open', mock.Mock(side_effect=fake_open)) as m:
assert pkg_resources._macos_vers([]) == ["11", "4"]

m.assert_called()


class TestDeepVersionLookupDistutils:
@pytest.fixture
def env(self, tmpdir):
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