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import os
import sys
import functools
import subprocess
import platform
import pytest
import jaraco.envs
import path
IS_PYPY = '__pypy__' in sys.builtin_module_names
class VirtualEnv(jaraco.envs.VirtualEnv):
name = '.env'
def run(self, cmd, *args, **kwargs):
cmd = [self.exe(cmd[0])] + cmd[1:]
return subprocess.check_output(cmd, *args, cwd=self.root, **kwargs)
@pytest.fixture
def venv(tmp_path, tmp_src):
env = VirtualEnv()
env.root = path.Path(tmp_path / 'venv')
env.req = str(tmp_src)
return env.create()
def popen_text(call):
"""
Augment the Popen call with the parameters to ensure unicode text.
"""
return functools.partial(call, universal_newlines=True) \
if sys.version_info < (3, 7) else functools.partial(call, text=True)
def find_distutils(venv, imports='distutils', env=None, **kwargs):
py_cmd = 'import {imports}; print(distutils.__file__)'.format(**locals())
cmd = ['python', '-c', py_cmd]
if platform.system() == 'Windows':
env['SYSTEMROOT'] = os.environ['SYSTEMROOT']
return popen_text(venv.run)(cmd, env=env, **kwargs)
def test_distutils_stdlib(venv):
"""
Ensure stdlib distutils is used when appropriate.
"""
env = dict(SETUPTOOLS_USE_DISTUTILS='stdlib')
assert venv.name not in find_distutils(venv, env=env).split(os.sep)
def test_distutils_local_with_setuptools(venv):
"""
Ensure local distutils is used when appropriate.
"""
env = dict(SETUPTOOLS_USE_DISTUTILS='local')
loc = find_distutils(venv, imports='setuptools, distutils', env=env)
assert venv.name in loc.split(os.sep)
@pytest.mark.xfail('IS_PYPY', reason='pypy imports distutils on startup')
def test_distutils_local(venv):
"""
Even without importing, the setuptools-local copy of distutils is
preferred.
"""
env = dict(SETUPTOOLS_USE_DISTUTILS='local')
assert venv.name in find_distutils(venv, env=env).split(os.sep)
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