pip/tests/unit/test_utils_virtualenv.py

52 lines
1.8 KiB
Python

import site
import sys
import pytest
from pip._internal.utils import virtualenv
@pytest.mark.parametrize("real_prefix, base_prefix, expected", [
(None, None, False), # Python 2 base interpreter
(None, sys.prefix, False), # Python 3 base interpreter
(None, "not_sys_prefix", True), # PEP405 venv
(sys.prefix, None, True), # Unknown case
(sys.prefix, sys.prefix, True), # Unknown case
(sys.prefix, "not_sys_prefix", True), # Unknown case
("not_sys_prefix", None, True), # Python 2 virtualenv
("not_sys_prefix", sys.prefix, True), # Python 3 virtualenv
("not_sys_prefix", "not_sys_prefix", True), # Unknown case
])
def test_running_under_virtualenv(
monkeypatch, real_prefix, base_prefix, expected):
# Use raising=False to prevent AttributeError on missing attribute
if real_prefix is None:
monkeypatch.delattr(sys, "real_prefix", raising=False)
else:
monkeypatch.setattr(sys, "real_prefix", real_prefix, raising=False)
if base_prefix is None:
monkeypatch.delattr(sys, "base_prefix", raising=False)
else:
monkeypatch.setattr(sys, "base_prefix", base_prefix, raising=False)
assert virtualenv.running_under_virtualenv() == expected
@pytest.mark.parametrize(
"running_under_virtualenv, no_global_file, expected", [
(False, False, False),
(False, True, False),
(True, False, False),
(True, True, True),
],
)
def test_virtualenv_no_global(
monkeypatch, tmpdir,
running_under_virtualenv, no_global_file, expected):
monkeypatch.setattr(site, '__file__', tmpdir / 'site.py')
monkeypatch.setattr(
virtualenv, 'running_under_virtualenv',
lambda: running_under_virtualenv)
if no_global_file:
(tmpdir / 'no-global-site-packages.txt').touch()
assert virtualenv.virtualenv_no_global() == expected