355 lines
13 KiB
Python
355 lines
13 KiB
Python
"""Tests for 'site'.
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Tests assume the initial paths in sys.path once the interpreter has begun
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executing have not been removed.
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"""
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import unittest
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from test.support import run_unittest, TESTFN, EnvironmentVarGuard
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import builtins
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import os
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import sys
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import encodings
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import subprocess
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import sysconfig
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from copy import copy
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# Need to make sure to not import 'site' if someone specified ``-S`` at the
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# command-line. Detect this by just making sure 'site' has not been imported
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# already.
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if "site" in sys.modules:
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import site
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else:
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raise unittest.SkipTest("importation of site.py suppressed")
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if not os.path.isdir(site.USER_SITE):
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# need to add user site directory for tests
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os.makedirs(site.USER_SITE)
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site.addsitedir(site.USER_SITE)
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class HelperFunctionsTests(unittest.TestCase):
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"""Tests for helper functions.
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The setting of the encoding (set using sys.setdefaultencoding) used by
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the Unicode implementation is not tested.
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"""
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def setUp(self):
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"""Save a copy of sys.path"""
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self.sys_path = sys.path[:]
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self.old_base = site.USER_BASE
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self.old_site = site.USER_SITE
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self.old_prefixes = site.PREFIXES
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self.old_vars = copy(sysconfig._CONFIG_VARS)
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def tearDown(self):
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"""Restore sys.path"""
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sys.path[:] = self.sys_path
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site.USER_BASE = self.old_base
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site.USER_SITE = self.old_site
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site.PREFIXES = self.old_prefixes
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sysconfig._CONFIG_VARS = self.old_vars
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def test_makepath(self):
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# Test makepath() have an absolute path for its first return value
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# and a case-normalized version of the absolute path for its
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# second value.
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path_parts = ("Beginning", "End")
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original_dir = os.path.join(*path_parts)
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abs_dir, norm_dir = site.makepath(*path_parts)
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self.assertEqual(os.path.abspath(original_dir), abs_dir)
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if original_dir == os.path.normcase(original_dir):
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self.assertEqual(abs_dir, norm_dir)
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else:
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self.assertEqual(os.path.normcase(abs_dir), norm_dir)
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def test_init_pathinfo(self):
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dir_set = site._init_pathinfo()
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for entry in [site.makepath(path)[1] for path in sys.path
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if path and os.path.isdir(path)]:
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self.assertIn(entry, dir_set,
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"%s from sys.path not found in set returned "
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"by _init_pathinfo(): %s" % (entry, dir_set))
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def pth_file_tests(self, pth_file):
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"""Contain common code for testing results of reading a .pth file"""
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self.assertIn(pth_file.imported, sys.modules,
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"%s not in sys.modules" % pth_file.imported)
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self.assertIn(site.makepath(pth_file.good_dir_path)[0], sys.path)
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self.assertFalse(os.path.exists(pth_file.bad_dir_path))
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def test_addpackage(self):
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# Make sure addpackage() imports if the line starts with 'import',
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# adds directories to sys.path for any line in the file that is not a
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# comment or import that is a valid directory name for where the .pth
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# file resides; invalid directories are not added
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pth_file = PthFile()
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pth_file.cleanup(prep=True) # to make sure that nothing is
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# pre-existing that shouldn't be
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try:
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pth_file.create()
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site.addpackage(pth_file.base_dir, pth_file.filename, set())
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self.pth_file_tests(pth_file)
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finally:
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pth_file.cleanup()
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def test_addsitedir(self):
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# Same tests for test_addpackage since addsitedir() essentially just
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# calls addpackage() for every .pth file in the directory
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pth_file = PthFile()
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pth_file.cleanup(prep=True) # Make sure that nothing is pre-existing
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# that is tested for
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try:
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pth_file.create()
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site.addsitedir(pth_file.base_dir, set())
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self.pth_file_tests(pth_file)
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finally:
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pth_file.cleanup()
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def test_s_option(self):
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usersite = site.USER_SITE
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self.assertIn(usersite, sys.path)
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rc = subprocess.call([sys.executable, '-c',
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'import sys; sys.exit(%r in sys.path)' % usersite])
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self.assertEqual(rc, 1)
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rc = subprocess.call([sys.executable, '-s', '-c',
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'import sys; sys.exit(%r in sys.path)' % usersite])
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self.assertEqual(rc, 0)
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env = os.environ.copy()
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env["PYTHONNOUSERSITE"] = "1"
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rc = subprocess.call([sys.executable, '-c',
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'import sys; sys.exit(%r in sys.path)' % usersite],
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env=env)
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self.assertEqual(rc, 0)
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env = os.environ.copy()
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env["PYTHONUSERBASE"] = "/tmp"
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rc = subprocess.call([sys.executable, '-c',
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'import sys, site; sys.exit(site.USER_BASE.startswith("/tmp"))'],
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env=env)
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self.assertEqual(rc, 1)
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def test_getuserbase(self):
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site.USER_BASE = None
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user_base = site.getuserbase()
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# the call sets site.USER_BASE
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self.assertEquals(site.USER_BASE, user_base)
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# let's set PYTHONUSERBASE and see if it uses it
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site.USER_BASE = None
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import sysconfig
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sysconfig._CONFIG_VARS = None
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with EnvironmentVarGuard() as environ:
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environ['PYTHONUSERBASE'] = 'xoxo'
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self.assertTrue(site.getuserbase().startswith('xoxo'),
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site.getuserbase())
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def test_getusersitepackages(self):
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site.USER_SITE = None
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site.USER_BASE = None
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user_site = site.getusersitepackages()
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# the call sets USER_BASE *and* USER_SITE
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self.assertEquals(site.USER_SITE, user_site)
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self.assertTrue(user_site.startswith(site.USER_BASE), user_site)
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def test_getsitepackages(self):
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site.PREFIXES = ['xoxo']
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dirs = site.getsitepackages()
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if sys.platform in ('os2emx', 'riscos'):
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self.assertEqual(len(dirs), 1)
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wanted = os.path.join('xoxo', 'Lib', 'site-packages')
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self.assertEquals(dirs[0], wanted)
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elif os.sep == '/':
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self.assertEqual(len(dirs), 2)
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wanted = os.path.join('xoxo', 'lib', 'python' + sys.version[:3],
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'site-packages')
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self.assertEquals(dirs[0], wanted)
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wanted = os.path.join('xoxo', 'lib', 'site-python')
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self.assertEquals(dirs[1], wanted)
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else:
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self.assertEqual(len(dirs), 2)
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self.assertEquals(dirs[0], 'xoxo')
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wanted = os.path.join('xoxo', 'lib', 'site-packages')
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self.assertEquals(dirs[1], wanted)
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# let's try the specific Apple location
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if (sys.platform == "darwin" and
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sysconfig.get_config_var("PYTHONFRAMEWORK")):
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site.PREFIXES = ['Python.framework']
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dirs = site.getsitepackages()
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self.assertEqual(len(dirs), 3)
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wanted = os.path.join('/Library', 'Python', sys.version[:3],
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'site-packages')
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self.assertEquals(dirs[2], wanted)
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class PthFile(object):
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"""Helper class for handling testing of .pth files"""
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def __init__(self, filename_base=TESTFN, imported="time",
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good_dirname="__testdir__", bad_dirname="__bad"):
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"""Initialize instance variables"""
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self.filename = filename_base + ".pth"
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self.base_dir = os.path.abspath('')
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self.file_path = os.path.join(self.base_dir, self.filename)
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self.imported = imported
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self.good_dirname = good_dirname
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self.bad_dirname = bad_dirname
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self.good_dir_path = os.path.join(self.base_dir, self.good_dirname)
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self.bad_dir_path = os.path.join(self.base_dir, self.bad_dirname)
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def create(self):
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"""Create a .pth file with a comment, blank lines, an ``import
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<self.imported>``, a line with self.good_dirname, and a line with
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self.bad_dirname.
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Creation of the directory for self.good_dir_path (based off of
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self.good_dirname) is also performed.
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Make sure to call self.cleanup() to undo anything done by this method.
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"""
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FILE = open(self.file_path, 'w')
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try:
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print("#import @bad module name", file=FILE)
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print("\n", file=FILE)
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print("import %s" % self.imported, file=FILE)
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print(self.good_dirname, file=FILE)
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print(self.bad_dirname, file=FILE)
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finally:
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FILE.close()
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os.mkdir(self.good_dir_path)
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def cleanup(self, prep=False):
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"""Make sure that the .pth file is deleted, self.imported is not in
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sys.modules, and that both self.good_dirname and self.bad_dirname are
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not existing directories."""
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if os.path.exists(self.file_path):
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os.remove(self.file_path)
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if prep:
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self.imported_module = sys.modules.get(self.imported)
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if self.imported_module:
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del sys.modules[self.imported]
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else:
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if self.imported_module:
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sys.modules[self.imported] = self.imported_module
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if os.path.exists(self.good_dir_path):
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os.rmdir(self.good_dir_path)
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if os.path.exists(self.bad_dir_path):
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os.rmdir(self.bad_dir_path)
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class ImportSideEffectTests(unittest.TestCase):
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"""Test side-effects from importing 'site'."""
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def setUp(self):
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"""Make a copy of sys.path"""
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self.sys_path = sys.path[:]
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def tearDown(self):
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"""Restore sys.path"""
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sys.path[:] = self.sys_path
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def test_abs_paths(self):
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# Make sure all imported modules have their __file__ and __cached__
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# attributes as absolute paths. Arranging to put the Lib directory on
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# PYTHONPATH would cause the os module to have a relative path for
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# __file__ if abs_paths() does not get run. sys and builtins (the
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# only other modules imported before site.py runs) do not have
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# __file__ or __cached__ because they are built-in.
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parent = os.path.relpath(os.path.dirname(os.__file__))
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env = os.environ.copy()
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env['PYTHONPATH'] = parent
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code = ('import os, sys',
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# use ASCII to avoid locale issues with non-ASCII directories
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'os_file = os.__file__.encode("ascii", "backslashreplace")',
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r'sys.stdout.buffer.write(os_file + b"\n")',
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'os_cached = os.__cached__.encode("ascii", "backslashreplace")',
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r'sys.stdout.buffer.write(os_cached + b"\n")')
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command = '\n'.join(code)
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# First, prove that with -S (no 'import site'), the paths are
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# relative.
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proc = subprocess.Popen([sys.executable, '-S', '-c', command],
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env=env,
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stdout=subprocess.PIPE)
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stdout, stderr = proc.communicate()
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self.assertEqual(proc.returncode, 0)
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os__file__, os__cached__ = stdout.splitlines()[:2]
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self.assertFalse(os.path.isabs(os__file__))
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self.assertFalse(os.path.isabs(os__cached__))
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# Now, with 'import site', it works.
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proc = subprocess.Popen([sys.executable, '-c', command],
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env=env,
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stdout=subprocess.PIPE)
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stdout, stderr = proc.communicate()
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self.assertEqual(proc.returncode, 0)
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os__file__, os__cached__ = stdout.splitlines()[:2]
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self.assertTrue(os.path.isabs(os__file__))
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self.assertTrue(os.path.isabs(os__cached__))
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def test_no_duplicate_paths(self):
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# No duplicate paths should exist in sys.path
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# Handled by removeduppaths()
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site.removeduppaths()
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seen_paths = set()
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for path in sys.path:
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self.assertNotIn(path, seen_paths)
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seen_paths.add(path)
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def test_add_build_dir(self):
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# Test that the build directory's Modules directory is used when it
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# should be.
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# XXX: implement
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pass
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def test_setting_quit(self):
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# 'quit' and 'exit' should be injected into builtins
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self.assertTrue(hasattr(builtins, "quit"))
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self.assertTrue(hasattr(builtins, "exit"))
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def test_setting_copyright(self):
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# 'copyright' and 'credits' should be in builtins
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self.assertTrue(hasattr(builtins, "copyright"))
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self.assertTrue(hasattr(builtins, "credits"))
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def test_setting_help(self):
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# 'help' should be set in builtins
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self.assertTrue(hasattr(builtins, "help"))
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def test_aliasing_mbcs(self):
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if sys.platform == "win32":
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import locale
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if locale.getdefaultlocale()[1].startswith('cp'):
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for value in encodings.aliases.aliases.values():
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if value == "mbcs":
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break
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else:
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self.fail("did not alias mbcs")
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def test_setdefaultencoding_removed(self):
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# Make sure sys.setdefaultencoding is gone
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self.assertTrue(not hasattr(sys, "setdefaultencoding"))
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def test_sitecustomize_executed(self):
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# If sitecustomize is available, it should have been imported.
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if "sitecustomize" not in sys.modules:
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try:
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import sitecustomize
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except ImportError:
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pass
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else:
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self.fail("sitecustomize not imported automatically")
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def test_main():
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run_unittest(HelperFunctionsTests, ImportSideEffectTests)
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if __name__ == "__main__":
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test_main()
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