mirror of
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99fcf15052
The getpath.py file is frozen at build time and executed as code over a namespace. It is never imported, nor is it meant to be importable or reusable. However, it should be easier to read, modify, and patch than the previous code. This commit attempts to preserve every previously tested quirk, but these may be changed in the future to better align platforms.
553 lines
22 KiB
Python
553 lines
22 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 ensurepip
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import os
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import os.path
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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 tempfile
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from test.support import (captured_stdout, captured_stderr, requires_zlib,
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skip_if_broken_multiprocessing_synchronize, verbose)
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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
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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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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(self):
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"""
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Test the create function with default arguments.
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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.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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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_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):
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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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'setuptools'
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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_call', 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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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):
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"""
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Test that the multiprocessing is able to spawn.
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"""
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# bpo-36342: Instantiation of a Pool object imports the
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# multiprocessing.synchronize module. Skip the test if this module
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# cannot be imported.
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skip_if_broken_multiprocessing_synchronize()
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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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'from multiprocessing import Pool; '
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'pool = Pool(1); '
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'print(pool.apply_async("Python".lower).get(3)); '
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'pool.terminate()'])
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self.assertEqual(out.strip(), "python".encode())
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@unittest.skipIf(os.name == 'nt', 'not relevant on Windows')
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def test_deactivate_with_strict_bash_opts(self):
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bash = shutil.which("bash")
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if bash is None:
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self.skipTest("bash required for this test")
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rmtree(self.env_dir)
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builder = venv.EnvBuilder(clear=True)
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builder.create(self.env_dir)
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activate = os.path.join(self.env_dir, self.bindir, "activate")
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test_script = os.path.join(self.env_dir, "test_strict.sh")
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with open(test_script, "w") as f:
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f.write("set -euo pipefail\n"
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f"source {activate}\n"
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"deactivate\n")
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out, err = check_output([bash, test_script])
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self.assertEqual(out, "".encode())
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self.assertEqual(err, "".encode())
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@unittest.skipUnless(sys.platform == 'darwin', 'only relevant on macOS')
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def test_macos_env(self):
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rmtree(self.env_dir)
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builder = venv.EnvBuilder()
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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 os; print("__PYVENV_LAUNCHER__" in os.environ)'])
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self.assertEqual(out.strip(), 'False'.encode())
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@requireVenvCreate
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class EnsurePipTest(BaseTest):
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"""Test venv module installation of pip."""
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def assert_pip_not_installed(self):
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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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'try:\n import pip\nexcept ImportError:\n print("OK")'])
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# We force everything to text, so unittest gives the detailed diff
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# if we get unexpected results
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err = err.decode("latin-1") # Force to text, prevent decoding errors
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self.assertEqual(err, "")
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out = out.decode("latin-1") # Force to text, prevent decoding errors
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self.assertEqual(out.strip(), "OK")
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def test_no_pip_by_default(self):
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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.assert_pip_not_installed()
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def test_explicit_no_pip(self):
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rmtree(self.env_dir)
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self.run_with_capture(venv.create, self.env_dir, with_pip=False)
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self.assert_pip_not_installed()
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def test_devnull(self):
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# Fix for issue #20053 uses os.devnull to force a config file to
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# appear empty. However http://bugs.python.org/issue20541 means
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# that doesn't currently work properly on Windows. Once that is
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# fixed, the "win_location" part of test_with_pip should be restored
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with open(os.devnull, "rb") as f:
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self.assertEqual(f.read(), b"")
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self.assertTrue(os.path.exists(os.devnull))
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def do_test_with_pip(self, system_site_packages):
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rmtree(self.env_dir)
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with EnvironmentVarGuard() as envvars:
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# pip's cross-version compatibility may trigger deprecation
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# warnings in current versions of Python. Ensure related
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# environment settings don't cause venv to fail.
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envvars["PYTHONWARNINGS"] = "ignore"
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# 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
|
|
try:
|
|
self.run_with_capture(venv.create, self.env_dir,
|
|
system_site_packages=system_site_packages,
|
|
with_pip=True)
|
|
except subprocess.CalledProcessError as exc:
|
|
# The output this produces can be a little hard to read,
|
|
# but at least it has all the details
|
|
details = exc.output.decode(errors="replace")
|
|
msg = "{}\n\n**Subprocess Output**\n{}"
|
|
self.fail(msg.format(exc, details))
|
|
# 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:
|
|
# 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)
|
|
self.assertIn("Successfully uninstalled setuptools", 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()
|
|
|
|
# Issue #26610: pip/pep425tags.py requires ctypes
|
|
@unittest.skipUnless(ctypes, 'pip requires ctypes')
|
|
@requires_zlib()
|
|
def test_with_pip(self):
|
|
self.do_test_with_pip(False)
|
|
self.do_test_with_pip(True)
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|