mirror of https://github.com/python/cpython
785 lines
32 KiB
Python
785 lines
32 KiB
Python
"""
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Test harness for the venv module.
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Copyright (C) 2011-2012 Vinay Sajip.
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Licensed to the PSF under a contributor agreement.
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"""
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import contextlib
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import ensurepip
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import os
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import os.path
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import pathlib
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import re
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import shutil
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import struct
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import subprocess
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import sys
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import sysconfig
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import tempfile
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from test.support import (captured_stdout, captured_stderr,
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skip_if_broken_multiprocessing_synchronize, verbose,
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requires_subprocess, is_emscripten, is_wasi,
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requires_venv_with_pip, TEST_HOME_DIR)
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from test.support.os_helper import (can_symlink, EnvironmentVarGuard, rmtree)
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import unittest
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import venv
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from unittest.mock import patch, Mock
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try:
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import ctypes
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except ImportError:
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ctypes = None
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# Platforms that set sys._base_executable can create venvs from within
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# another venv, so no need to skip tests that require venv.create().
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requireVenvCreate = unittest.skipUnless(
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sys.prefix == sys.base_prefix
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or sys._base_executable != sys.executable,
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'cannot run venv.create from within a venv on this platform')
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if is_emscripten or is_wasi:
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raise unittest.SkipTest("venv is not available on Emscripten/WASI.")
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@requires_subprocess()
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def check_output(cmd, encoding=None):
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p = subprocess.Popen(cmd,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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encoding=encoding)
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out, err = p.communicate()
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if p.returncode:
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if verbose and err:
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print(err.decode('utf-8', 'backslashreplace'))
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raise subprocess.CalledProcessError(
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p.returncode, cmd, out, err)
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return out, err
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class BaseTest(unittest.TestCase):
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"""Base class for venv tests."""
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maxDiff = 80 * 50
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def setUp(self):
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self.env_dir = os.path.realpath(tempfile.mkdtemp())
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if os.name == 'nt':
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self.bindir = 'Scripts'
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self.lib = ('Lib',)
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self.include = 'Include'
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else:
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self.bindir = 'bin'
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self.lib = ('lib', 'python%d.%d' % sys.version_info[:2])
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self.include = 'include'
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executable = sys._base_executable
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self.exe = os.path.split(executable)[-1]
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if (sys.platform == 'win32'
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and os.path.lexists(executable)
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and not os.path.exists(executable)):
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self.cannot_link_exe = True
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else:
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self.cannot_link_exe = False
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def tearDown(self):
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rmtree(self.env_dir)
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def run_with_capture(self, func, *args, **kwargs):
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with captured_stdout() as output:
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with captured_stderr() as error:
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func(*args, **kwargs)
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return output.getvalue(), error.getvalue()
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def get_env_file(self, *args):
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return os.path.join(self.env_dir, *args)
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def get_text_file_contents(self, *args, encoding='utf-8'):
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with open(self.get_env_file(*args), 'r', encoding=encoding) as f:
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result = f.read()
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return result
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class BasicTest(BaseTest):
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"""Test venv module functionality."""
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def isdir(self, *args):
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fn = self.get_env_file(*args)
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self.assertTrue(os.path.isdir(fn))
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def test_defaults_with_str_path(self):
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"""
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Test the create function with default arguments and a str path.
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"""
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rmtree(self.env_dir)
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self.run_with_capture(venv.create, self.env_dir)
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self._check_output_of_default_create()
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def test_defaults_with_pathlib_path(self):
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"""
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Test the create function with default arguments and a pathlib.Path path.
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"""
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rmtree(self.env_dir)
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self.run_with_capture(venv.create, pathlib.Path(self.env_dir))
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self._check_output_of_default_create()
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def _check_output_of_default_create(self):
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self.isdir(self.bindir)
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self.isdir(self.include)
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self.isdir(*self.lib)
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# Issue 21197
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p = self.get_env_file('lib64')
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conditions = ((struct.calcsize('P') == 8) and (os.name == 'posix') and
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(sys.platform != 'darwin'))
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if conditions:
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self.assertTrue(os.path.islink(p))
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else:
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self.assertFalse(os.path.exists(p))
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data = self.get_text_file_contents('pyvenv.cfg')
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executable = sys._base_executable
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path = os.path.dirname(executable)
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self.assertIn('home = %s' % path, data)
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self.assertIn('executable = %s' %
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os.path.realpath(sys.executable), data)
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copies = '' if os.name=='nt' else ' --copies'
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cmd = f'command = {sys.executable} -m venv{copies} --without-pip {self.env_dir}'
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self.assertIn(cmd, data)
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fn = self.get_env_file(self.bindir, self.exe)
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if not os.path.exists(fn): # diagnostics for Windows buildbot failures
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bd = self.get_env_file(self.bindir)
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print('Contents of %r:' % bd)
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print(' %r' % os.listdir(bd))
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self.assertTrue(os.path.exists(fn), 'File %r should exist.' % fn)
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def test_config_file_command_key(self):
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attrs = [
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(None, None),
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('symlinks', '--copies'),
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('with_pip', '--without-pip'),
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('system_site_packages', '--system-site-packages'),
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('clear', '--clear'),
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('upgrade', '--upgrade'),
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('upgrade_deps', '--upgrade-deps'),
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('prompt', '--prompt'),
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]
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for attr, opt in attrs:
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rmtree(self.env_dir)
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if not attr:
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b = venv.EnvBuilder()
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else:
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b = venv.EnvBuilder(
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**{attr: False if attr in ('with_pip', 'symlinks') else True})
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b.upgrade_dependencies = Mock() # avoid pip command to upgrade deps
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b._setup_pip = Mock() # avoid pip setup
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self.run_with_capture(b.create, self.env_dir)
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data = self.get_text_file_contents('pyvenv.cfg')
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if not attr:
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for opt in ('--system-site-packages', '--clear', '--upgrade',
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'--upgrade-deps', '--prompt'):
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self.assertNotRegex(data, rf'command = .* {opt}')
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elif os.name=='nt' and attr=='symlinks':
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pass
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else:
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self.assertRegex(data, rf'command = .* {opt}')
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def test_prompt(self):
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env_name = os.path.split(self.env_dir)[1]
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rmtree(self.env_dir)
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builder = venv.EnvBuilder()
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self.run_with_capture(builder.create, self.env_dir)
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context = builder.ensure_directories(self.env_dir)
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data = self.get_text_file_contents('pyvenv.cfg')
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self.assertEqual(context.prompt, '(%s) ' % env_name)
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self.assertNotIn("prompt = ", data)
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rmtree(self.env_dir)
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builder = venv.EnvBuilder(prompt='My prompt')
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self.run_with_capture(builder.create, self.env_dir)
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context = builder.ensure_directories(self.env_dir)
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data = self.get_text_file_contents('pyvenv.cfg')
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self.assertEqual(context.prompt, '(My prompt) ')
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self.assertIn("prompt = 'My prompt'\n", data)
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rmtree(self.env_dir)
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builder = venv.EnvBuilder(prompt='.')
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cwd = os.path.basename(os.getcwd())
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self.run_with_capture(builder.create, self.env_dir)
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context = builder.ensure_directories(self.env_dir)
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data = self.get_text_file_contents('pyvenv.cfg')
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self.assertEqual(context.prompt, '(%s) ' % cwd)
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self.assertIn("prompt = '%s'\n" % cwd, data)
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def test_upgrade_dependencies(self):
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builder = venv.EnvBuilder()
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bin_path = 'Scripts' if sys.platform == 'win32' else 'bin'
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python_exe = os.path.split(sys.executable)[1]
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with tempfile.TemporaryDirectory() as fake_env_dir:
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expect_exe = os.path.normcase(
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os.path.join(fake_env_dir, bin_path, python_exe)
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)
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if sys.platform == 'win32':
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expect_exe = os.path.normcase(os.path.realpath(expect_exe))
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def pip_cmd_checker(cmd, **kwargs):
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cmd[0] = os.path.normcase(cmd[0])
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self.assertEqual(
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cmd,
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[
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expect_exe,
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'-m',
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'pip',
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'install',
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'--upgrade',
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'pip',
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]
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)
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fake_context = builder.ensure_directories(fake_env_dir)
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with patch('venv.subprocess.check_output', pip_cmd_checker):
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builder.upgrade_dependencies(fake_context)
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@requireVenvCreate
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def test_prefixes(self):
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"""
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Test that the prefix values are as expected.
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"""
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# check a venv's prefixes
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rmtree(self.env_dir)
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self.run_with_capture(venv.create, self.env_dir)
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envpy = os.path.join(self.env_dir, self.bindir, self.exe)
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cmd = [envpy, '-c', None]
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for prefix, expected in (
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('prefix', self.env_dir),
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('exec_prefix', self.env_dir),
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('base_prefix', sys.base_prefix),
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('base_exec_prefix', sys.base_exec_prefix)):
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cmd[2] = 'import sys; print(sys.%s)' % prefix
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out, err = check_output(cmd)
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self.assertEqual(out.strip(), expected.encode(), prefix)
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@requireVenvCreate
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def test_sysconfig(self):
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"""
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Test that the sysconfig functions work in a virtual environment.
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"""
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rmtree(self.env_dir)
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self.run_with_capture(venv.create, self.env_dir, symlinks=False)
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envpy = os.path.join(self.env_dir, self.bindir, self.exe)
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cmd = [envpy, '-c', None]
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for call, expected in (
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# installation scheme
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('get_preferred_scheme("prefix")', 'venv'),
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('get_default_scheme()', 'venv'),
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# build environment
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('is_python_build()', str(sysconfig.is_python_build())),
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('get_makefile_filename()', sysconfig.get_makefile_filename()),
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('get_config_h_filename()', sysconfig.get_config_h_filename())):
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with self.subTest(call):
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cmd[2] = 'import sysconfig; print(sysconfig.%s)' % call
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out, err = check_output(cmd)
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self.assertEqual(out.strip(), expected.encode(), err)
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@requireVenvCreate
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@unittest.skipUnless(can_symlink(), 'Needs symlinks')
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def test_sysconfig_symlinks(self):
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"""
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Test that the sysconfig functions work in a virtual environment.
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"""
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rmtree(self.env_dir)
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self.run_with_capture(venv.create, self.env_dir, symlinks=True)
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envpy = os.path.join(self.env_dir, self.bindir, self.exe)
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cmd = [envpy, '-c', None]
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for call, expected in (
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# installation scheme
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('get_preferred_scheme("prefix")', 'venv'),
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('get_default_scheme()', 'venv'),
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# build environment
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('is_python_build()', str(sysconfig.is_python_build())),
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('get_makefile_filename()', sysconfig.get_makefile_filename()),
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('get_config_h_filename()', sysconfig.get_config_h_filename())):
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with self.subTest(call):
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cmd[2] = 'import sysconfig; print(sysconfig.%s)' % call
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out, err = check_output(cmd)
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self.assertEqual(out.strip(), expected.encode(), err)
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if sys.platform == 'win32':
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ENV_SUBDIRS = (
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('Scripts',),
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('Include',),
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('Lib',),
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('Lib', 'site-packages'),
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)
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else:
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ENV_SUBDIRS = (
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('bin',),
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('include',),
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('lib',),
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('lib', 'python%d.%d' % sys.version_info[:2]),
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('lib', 'python%d.%d' % sys.version_info[:2], 'site-packages'),
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)
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def create_contents(self, paths, filename):
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"""
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Create some files in the environment which are unrelated
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to the virtual environment.
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"""
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for subdirs in paths:
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d = os.path.join(self.env_dir, *subdirs)
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os.mkdir(d)
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fn = os.path.join(d, filename)
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with open(fn, 'wb') as f:
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f.write(b'Still here?')
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def test_overwrite_existing(self):
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"""
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Test creating environment in an existing directory.
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"""
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self.create_contents(self.ENV_SUBDIRS, 'foo')
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venv.create(self.env_dir)
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for subdirs in self.ENV_SUBDIRS:
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fn = os.path.join(self.env_dir, *(subdirs + ('foo',)))
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self.assertTrue(os.path.exists(fn))
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with open(fn, 'rb') as f:
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self.assertEqual(f.read(), b'Still here?')
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builder = venv.EnvBuilder(clear=True)
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builder.create(self.env_dir)
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for subdirs in self.ENV_SUBDIRS:
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fn = os.path.join(self.env_dir, *(subdirs + ('foo',)))
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self.assertFalse(os.path.exists(fn))
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def clear_directory(self, path):
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for fn in os.listdir(path):
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fn = os.path.join(path, fn)
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if os.path.islink(fn) or os.path.isfile(fn):
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os.remove(fn)
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elif os.path.isdir(fn):
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rmtree(fn)
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def test_unoverwritable_fails(self):
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#create a file clashing with directories in the env dir
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for paths in self.ENV_SUBDIRS[:3]:
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fn = os.path.join(self.env_dir, *paths)
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with open(fn, 'wb') as f:
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f.write(b'')
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self.assertRaises((ValueError, OSError), venv.create, self.env_dir)
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self.clear_directory(self.env_dir)
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def test_upgrade(self):
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"""
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Test upgrading an existing environment directory.
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"""
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# See Issue #21643: the loop needs to run twice to ensure
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# that everything works on the upgrade (the first run just creates
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# the venv).
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for upgrade in (False, True):
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builder = venv.EnvBuilder(upgrade=upgrade)
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self.run_with_capture(builder.create, self.env_dir)
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self.isdir(self.bindir)
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self.isdir(self.include)
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self.isdir(*self.lib)
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fn = self.get_env_file(self.bindir, self.exe)
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if not os.path.exists(fn):
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# diagnostics for Windows buildbot failures
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bd = self.get_env_file(self.bindir)
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print('Contents of %r:' % bd)
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print(' %r' % os.listdir(bd))
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self.assertTrue(os.path.exists(fn), 'File %r should exist.' % fn)
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def test_isolation(self):
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"""
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Test isolation from system site-packages
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"""
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for ssp, s in ((True, 'true'), (False, 'false')):
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builder = venv.EnvBuilder(clear=True, system_site_packages=ssp)
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builder.create(self.env_dir)
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data = self.get_text_file_contents('pyvenv.cfg')
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self.assertIn('include-system-site-packages = %s\n' % s, data)
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@unittest.skipUnless(can_symlink(), 'Needs symlinks')
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def test_symlinking(self):
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"""
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Test symlinking works as expected
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"""
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for usl in (False, True):
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builder = venv.EnvBuilder(clear=True, symlinks=usl)
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builder.create(self.env_dir)
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fn = self.get_env_file(self.bindir, self.exe)
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# Don't test when False, because e.g. 'python' is always
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# symlinked to 'python3.3' in the env, even when symlinking in
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# general isn't wanted.
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if usl:
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if self.cannot_link_exe:
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# Symlinking is skipped when our executable is already a
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# special app symlink
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self.assertFalse(os.path.islink(fn))
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else:
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self.assertTrue(os.path.islink(fn))
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# If a venv is created from a source build and that venv is used to
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# run the test, the pyvenv.cfg in the venv created in the test will
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# point to the venv being used to run the test, and we lose the link
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# to the source build - so Python can't initialise properly.
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@requireVenvCreate
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def test_executable(self):
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"""
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Test that the sys.executable value is as expected.
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"""
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rmtree(self.env_dir)
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self.run_with_capture(venv.create, self.env_dir)
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envpy = os.path.join(os.path.realpath(self.env_dir),
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self.bindir, self.exe)
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out, err = check_output([envpy, '-c',
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'import sys; print(sys.executable)'])
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self.assertEqual(out.strip(), envpy.encode())
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@unittest.skipUnless(can_symlink(), 'Needs symlinks')
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def test_executable_symlinks(self):
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"""
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Test that the sys.executable value is as expected.
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"""
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rmtree(self.env_dir)
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builder = venv.EnvBuilder(clear=True, symlinks=True)
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builder.create(self.env_dir)
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envpy = os.path.join(os.path.realpath(self.env_dir),
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self.bindir, self.exe)
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out, err = check_output([envpy, '-c',
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'import sys; print(sys.executable)'])
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self.assertEqual(out.strip(), envpy.encode())
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@unittest.skipUnless(os.name == 'nt', 'only relevant on Windows')
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def test_unicode_in_batch_file(self):
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"""
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Test handling of Unicode paths
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"""
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rmtree(self.env_dir)
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env_dir = os.path.join(os.path.realpath(self.env_dir), 'ϼўТλФЙ')
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builder = venv.EnvBuilder(clear=True)
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builder.create(env_dir)
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activate = os.path.join(env_dir, self.bindir, 'activate.bat')
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envpy = os.path.join(env_dir, self.bindir, self.exe)
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out, err = check_output(
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[activate, '&', self.exe, '-c', 'print(0)'],
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encoding='oem',
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)
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self.assertEqual(out.strip(), '0')
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@requireVenvCreate
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|
def test_multiprocessing(self):
|
|
"""
|
|
Test that the multiprocessing is able to spawn.
|
|
"""
|
|
# bpo-36342: Instantiation of a Pool object imports the
|
|
# multiprocessing.synchronize module. Skip the test if this module
|
|
# cannot be imported.
|
|
skip_if_broken_multiprocessing_synchronize()
|
|
|
|
rmtree(self.env_dir)
|
|
self.run_with_capture(venv.create, self.env_dir)
|
|
envpy = os.path.join(os.path.realpath(self.env_dir),
|
|
self.bindir, self.exe)
|
|
out, err = check_output([envpy, '-c',
|
|
'from multiprocessing import Pool; '
|
|
'pool = Pool(1); '
|
|
'print(pool.apply_async("Python".lower).get(3)); '
|
|
'pool.terminate()'])
|
|
self.assertEqual(out.strip(), "python".encode())
|
|
|
|
@requireVenvCreate
|
|
def test_multiprocessing_recursion(self):
|
|
"""
|
|
Test that the multiprocessing is able to spawn itself
|
|
"""
|
|
skip_if_broken_multiprocessing_synchronize()
|
|
|
|
rmtree(self.env_dir)
|
|
self.run_with_capture(venv.create, self.env_dir)
|
|
envpy = os.path.join(os.path.realpath(self.env_dir),
|
|
self.bindir, self.exe)
|
|
script = os.path.join(TEST_HOME_DIR, '_test_venv_multiprocessing.py')
|
|
subprocess.check_call([envpy, script])
|
|
|
|
@unittest.skipIf(os.name == 'nt', 'not relevant on Windows')
|
|
def test_deactivate_with_strict_bash_opts(self):
|
|
bash = shutil.which("bash")
|
|
if bash is None:
|
|
self.skipTest("bash required for this test")
|
|
rmtree(self.env_dir)
|
|
builder = venv.EnvBuilder(clear=True)
|
|
builder.create(self.env_dir)
|
|
activate = os.path.join(self.env_dir, self.bindir, "activate")
|
|
test_script = os.path.join(self.env_dir, "test_strict.sh")
|
|
with open(test_script, "w") as f:
|
|
f.write("set -euo pipefail\n"
|
|
f"source {activate}\n"
|
|
"deactivate\n")
|
|
out, err = check_output([bash, test_script])
|
|
self.assertEqual(out, "".encode())
|
|
self.assertEqual(err, "".encode())
|
|
|
|
|
|
@unittest.skipUnless(sys.platform == 'darwin', 'only relevant on macOS')
|
|
def test_macos_env(self):
|
|
rmtree(self.env_dir)
|
|
builder = venv.EnvBuilder()
|
|
builder.create(self.env_dir)
|
|
|
|
envpy = os.path.join(os.path.realpath(self.env_dir),
|
|
self.bindir, self.exe)
|
|
out, err = check_output([envpy, '-c',
|
|
'import os; print("__PYVENV_LAUNCHER__" in os.environ)'])
|
|
self.assertEqual(out.strip(), 'False'.encode())
|
|
|
|
def test_pathsep_error(self):
|
|
"""
|
|
Test that venv creation fails when the target directory contains
|
|
the path separator.
|
|
"""
|
|
rmtree(self.env_dir)
|
|
bad_itempath = self.env_dir + os.pathsep
|
|
self.assertRaises(ValueError, venv.create, bad_itempath)
|
|
self.assertRaises(ValueError, venv.create, pathlib.Path(bad_itempath))
|
|
|
|
@unittest.skipIf(os.name == 'nt', 'not relevant on Windows')
|
|
@requireVenvCreate
|
|
def test_zippath_from_non_installed_posix(self):
|
|
"""
|
|
Test that when create venv from non-installed python, the zip path
|
|
value is as expected.
|
|
"""
|
|
rmtree(self.env_dir)
|
|
# First try to create a non-installed python. It's not a real full
|
|
# functional non-installed python, but enough for this test.
|
|
platlibdir = sys.platlibdir
|
|
non_installed_dir = os.path.realpath(tempfile.mkdtemp())
|
|
self.addCleanup(rmtree, non_installed_dir)
|
|
bindir = os.path.join(non_installed_dir, self.bindir)
|
|
os.mkdir(bindir)
|
|
shutil.copy2(sys.executable, bindir)
|
|
libdir = os.path.join(non_installed_dir, platlibdir, self.lib[1])
|
|
os.makedirs(libdir)
|
|
landmark = os.path.join(libdir, "os.py")
|
|
stdlib_zip = "python%d%d.zip" % sys.version_info[:2]
|
|
zip_landmark = os.path.join(non_installed_dir,
|
|
platlibdir,
|
|
stdlib_zip)
|
|
additional_pythonpath_for_non_installed = []
|
|
# Copy stdlib files to the non-installed python so venv can
|
|
# correctly calculate the prefix.
|
|
for eachpath in sys.path:
|
|
if eachpath.endswith(".zip"):
|
|
if os.path.isfile(eachpath):
|
|
shutil.copyfile(
|
|
eachpath,
|
|
os.path.join(non_installed_dir, platlibdir))
|
|
elif os.path.isfile(os.path.join(eachpath, "os.py")):
|
|
for name in os.listdir(eachpath):
|
|
if name == "site-packages":
|
|
continue
|
|
fn = os.path.join(eachpath, name)
|
|
if os.path.isfile(fn):
|
|
shutil.copy(fn, libdir)
|
|
elif os.path.isdir(fn):
|
|
shutil.copytree(fn, os.path.join(libdir, name))
|
|
else:
|
|
additional_pythonpath_for_non_installed.append(
|
|
eachpath)
|
|
cmd = [os.path.join(non_installed_dir, self.bindir, self.exe),
|
|
"-m",
|
|
"venv",
|
|
"--without-pip",
|
|
self.env_dir]
|
|
# Our fake non-installed python is not fully functional because
|
|
# it cannot find the extensions. Set PYTHONPATH so it can run the
|
|
# venv module correctly.
|
|
pythonpath = os.pathsep.join(
|
|
additional_pythonpath_for_non_installed)
|
|
# For python built with shared enabled. We need to set
|
|
# LD_LIBRARY_PATH so the non-installed python can find and link
|
|
# libpython.so
|
|
ld_library_path = sysconfig.get_config_var("LIBDIR")
|
|
if not ld_library_path or sysconfig.is_python_build():
|
|
ld_library_path = os.path.abspath(os.path.dirname(sys.executable))
|
|
if sys.platform == 'darwin':
|
|
ld_library_path_env = "DYLD_LIBRARY_PATH"
|
|
else:
|
|
ld_library_path_env = "LD_LIBRARY_PATH"
|
|
child_env = {
|
|
"PYTHONPATH": pythonpath,
|
|
ld_library_path_env: ld_library_path,
|
|
}
|
|
if asan_options := os.environ.get("ASAN_OPTIONS"):
|
|
# prevent https://github.com/python/cpython/issues/104839
|
|
child_env["ASAN_OPTIONS"] = asan_options
|
|
subprocess.check_call(cmd, env=child_env)
|
|
envpy = os.path.join(self.env_dir, self.bindir, self.exe)
|
|
# Now check the venv created from the non-installed python has
|
|
# correct zip path in pythonpath.
|
|
cmd = [envpy, '-S', '-c', 'import sys; print(sys.path)']
|
|
out, err = check_output(cmd)
|
|
self.assertTrue(zip_landmark.encode() in out)
|
|
|
|
def test_activate_shell_script_has_no_dos_newlines(self):
|
|
"""
|
|
Test that the `activate` shell script contains no CR LF.
|
|
This is relevant for Cygwin, as the Windows build might have
|
|
converted line endings accidentally.
|
|
"""
|
|
venv_dir = pathlib.Path(self.env_dir)
|
|
rmtree(venv_dir)
|
|
[[scripts_dir], *_] = self.ENV_SUBDIRS
|
|
script_path = venv_dir / scripts_dir / "activate"
|
|
venv.create(venv_dir)
|
|
with open(script_path, 'rb') as script:
|
|
for i, line in enumerate(script, 1):
|
|
error_message = f"CR LF found in line {i}"
|
|
self.assertFalse(line.endswith(b'\r\n'), error_message)
|
|
|
|
@requireVenvCreate
|
|
class EnsurePipTest(BaseTest):
|
|
"""Test venv module installation of pip."""
|
|
def assert_pip_not_installed(self):
|
|
envpy = os.path.join(os.path.realpath(self.env_dir),
|
|
self.bindir, self.exe)
|
|
out, err = check_output([envpy, '-c',
|
|
'try:\n import pip\nexcept ImportError:\n print("OK")'])
|
|
# We force everything to text, so unittest gives the detailed diff
|
|
# if we get unexpected results
|
|
err = err.decode("latin-1") # Force to text, prevent decoding errors
|
|
self.assertEqual(err, "")
|
|
out = out.decode("latin-1") # Force to text, prevent decoding errors
|
|
self.assertEqual(out.strip(), "OK")
|
|
|
|
|
|
def test_no_pip_by_default(self):
|
|
rmtree(self.env_dir)
|
|
self.run_with_capture(venv.create, self.env_dir)
|
|
self.assert_pip_not_installed()
|
|
|
|
def test_explicit_no_pip(self):
|
|
rmtree(self.env_dir)
|
|
self.run_with_capture(venv.create, self.env_dir, with_pip=False)
|
|
self.assert_pip_not_installed()
|
|
|
|
def test_devnull(self):
|
|
# Fix for issue #20053 uses os.devnull to force a config file to
|
|
# appear empty. However http://bugs.python.org/issue20541 means
|
|
# that doesn't currently work properly on Windows. Once that is
|
|
# fixed, the "win_location" part of test_with_pip should be restored
|
|
with open(os.devnull, "rb") as f:
|
|
self.assertEqual(f.read(), b"")
|
|
|
|
self.assertTrue(os.path.exists(os.devnull))
|
|
|
|
def do_test_with_pip(self, system_site_packages):
|
|
rmtree(self.env_dir)
|
|
with EnvironmentVarGuard() as envvars:
|
|
# pip's cross-version compatibility may trigger deprecation
|
|
# warnings in current versions of Python. Ensure related
|
|
# environment settings don't cause venv to fail.
|
|
envvars["PYTHONWARNINGS"] = "ignore"
|
|
# ensurepip is different enough from a normal pip invocation
|
|
# that we want to ensure it ignores the normal pip environment
|
|
# variable settings. We set PIP_NO_INSTALL here specifically
|
|
# to check that ensurepip (and hence venv) ignores it.
|
|
# See http://bugs.python.org/issue19734
|
|
envvars["PIP_NO_INSTALL"] = "1"
|
|
# Also check that we ignore the pip configuration file
|
|
# See http://bugs.python.org/issue20053
|
|
with tempfile.TemporaryDirectory() as home_dir:
|
|
envvars["HOME"] = home_dir
|
|
bad_config = "[global]\nno-install=1"
|
|
# Write to both config file names on all platforms to reduce
|
|
# cross-platform variation in test code behaviour
|
|
win_location = ("pip", "pip.ini")
|
|
posix_location = (".pip", "pip.conf")
|
|
# Skips win_location due to http://bugs.python.org/issue20541
|
|
for dirname, fname in (posix_location,):
|
|
dirpath = os.path.join(home_dir, dirname)
|
|
os.mkdir(dirpath)
|
|
fpath = os.path.join(dirpath, fname)
|
|
with open(fpath, 'w') as f:
|
|
f.write(bad_config)
|
|
|
|
# Actually run the create command with all that unhelpful
|
|
# config in place to ensure we ignore it
|
|
with self.nicer_error():
|
|
self.run_with_capture(venv.create, self.env_dir,
|
|
system_site_packages=system_site_packages,
|
|
with_pip=True)
|
|
# Ensure pip is available in the virtual environment
|
|
envpy = os.path.join(os.path.realpath(self.env_dir), self.bindir, self.exe)
|
|
# Ignore DeprecationWarning since pip code is not part of Python
|
|
out, err = check_output([envpy, '-W', 'ignore::DeprecationWarning',
|
|
'-W', 'ignore::ImportWarning', '-I',
|
|
'-m', 'pip', '--version'])
|
|
# We force everything to text, so unittest gives the detailed diff
|
|
# if we get unexpected results
|
|
err = err.decode("latin-1") # Force to text, prevent decoding errors
|
|
self.assertEqual(err, "")
|
|
out = out.decode("latin-1") # Force to text, prevent decoding errors
|
|
expected_version = "pip {}".format(ensurepip.version())
|
|
self.assertEqual(out[:len(expected_version)], expected_version)
|
|
env_dir = os.fsencode(self.env_dir).decode("latin-1")
|
|
self.assertIn(env_dir, out)
|
|
|
|
# http://bugs.python.org/issue19728
|
|
# Check the private uninstall command provided for the Windows
|
|
# installers works (at least in a virtual environment)
|
|
with EnvironmentVarGuard() as envvars:
|
|
with self.nicer_error():
|
|
# It seems ensurepip._uninstall calls subprocesses which do not
|
|
# inherit the interpreter settings.
|
|
envvars["PYTHONWARNINGS"] = "ignore"
|
|
out, err = check_output([envpy,
|
|
'-W', 'ignore::DeprecationWarning',
|
|
'-W', 'ignore::ImportWarning', '-I',
|
|
'-m', 'ensurepip._uninstall'])
|
|
# We force everything to text, so unittest gives the detailed diff
|
|
# if we get unexpected results
|
|
err = err.decode("latin-1") # Force to text, prevent decoding errors
|
|
# Ignore the warning:
|
|
# "The directory '$HOME/.cache/pip/http' or its parent directory
|
|
# is not owned by the current user and the cache has been disabled.
|
|
# Please check the permissions and owner of that directory. If
|
|
# executing pip with sudo, you may want sudo's -H flag."
|
|
# where $HOME is replaced by the HOME environment variable.
|
|
err = re.sub("^(WARNING: )?The directory .* or its parent directory "
|
|
"is not owned or is not writable by the current user.*$", "",
|
|
err, flags=re.MULTILINE)
|
|
self.assertEqual(err.rstrip(), "")
|
|
# Being fairly specific regarding the expected behaviour for the
|
|
# initial bundling phase in Python 3.4. If the output changes in
|
|
# future pip versions, this test can likely be relaxed further.
|
|
out = out.decode("latin-1") # Force to text, prevent decoding errors
|
|
self.assertIn("Successfully uninstalled pip", out)
|
|
# Check pip is now gone from the virtual environment. This only
|
|
# applies in the system_site_packages=False case, because in the
|
|
# other case, pip may still be available in the system site-packages
|
|
if not system_site_packages:
|
|
self.assert_pip_not_installed()
|
|
|
|
@contextlib.contextmanager
|
|
def nicer_error(self):
|
|
"""
|
|
Capture output from a failed subprocess for easier debugging.
|
|
|
|
The output this handler produces can be a little hard to read,
|
|
but at least it has all the details.
|
|
"""
|
|
try:
|
|
yield
|
|
except subprocess.CalledProcessError as exc:
|
|
out = (exc.output or b'').decode(errors="replace")
|
|
err = (exc.stderr or b'').decode(errors="replace")
|
|
self.fail(
|
|
f"{exc}\n\n"
|
|
f"**Subprocess Output**\n{out}\n\n"
|
|
f"**Subprocess Error**\n{err}"
|
|
)
|
|
|
|
@requires_venv_with_pip()
|
|
def test_with_pip(self):
|
|
self.do_test_with_pip(False)
|
|
self.do_test_with_pip(True)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|