451 lines
17 KiB
Python
451 lines
17 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.test_support import run_unittest, TESTFN, EnvironmentVarGuard
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from test.test_support import captured_output
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from test import support
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import __builtin__
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import errno
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import os
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import sys
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import re
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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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OLD_SYS_PATH = None
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def setUpModule():
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global OLD_SYS_PATH
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OLD_SYS_PATH = sys.path[:]
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if site.ENABLE_USER_SITE and not os.path.isdir(site.USER_SITE):
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# need to add user site directory for tests
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try:
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os.makedirs(site.USER_SITE)
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# modify sys.path: will be restored by tearDownModule()
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site.addsitedir(site.USER_SITE)
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except OSError as exc:
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if exc.errno in (errno.EACCES, errno.EPERM):
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raise unittest.SkipTest('unable to create user site directory (%r): %s'
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% (site.USER_SITE, exc))
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else:
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raise
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def tearDownModule():
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sys.path[:] = OLD_SYS_PATH
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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 make_pth(self, contents, pth_dir='.', pth_name=TESTFN):
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# Create a .pth file and return its (abspath, basename).
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pth_dir = os.path.abspath(pth_dir)
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pth_basename = pth_name + '.pth'
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pth_fn = os.path.join(pth_dir, pth_basename)
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pth_file = open(pth_fn, 'w')
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self.addCleanup(lambda: os.remove(pth_fn))
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pth_file.write(contents)
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pth_file.close()
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return pth_dir, pth_basename
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def test_addpackage_import_bad_syntax(self):
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# Issue 10642
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pth_dir, pth_fn = self.make_pth("import bad)syntax\n")
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with captured_output("stderr") as err_out:
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site.addpackage(pth_dir, pth_fn, set())
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self.assertRegexpMatches(err_out.getvalue(), "line 1")
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self.assertRegexpMatches(err_out.getvalue(),
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re.escape(os.path.join(pth_dir, pth_fn)))
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# XXX: the previous two should be independent checks so that the
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# order doesn't matter. The next three could be a single check
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# but my regex foo isn't good enough to write it.
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self.assertRegexpMatches(err_out.getvalue(), 'Traceback')
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self.assertRegexpMatches(err_out.getvalue(), r'import bad\)syntax')
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self.assertRegexpMatches(err_out.getvalue(), 'SyntaxError')
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def test_addpackage_import_bad_exec(self):
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# Issue 10642
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pth_dir, pth_fn = self.make_pth("randompath\nimport nosuchmodule\n")
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with captured_output("stderr") as err_out:
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site.addpackage(pth_dir, pth_fn, set())
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self.assertRegexpMatches(err_out.getvalue(), "line 2")
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self.assertRegexpMatches(err_out.getvalue(),
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re.escape(os.path.join(pth_dir, pth_fn)))
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# XXX: ditto previous XXX comment.
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self.assertRegexpMatches(err_out.getvalue(), 'Traceback')
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self.assertRegexpMatches(err_out.getvalue(), 'ImportError')
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@unittest.skipIf(sys.platform == "win32", "Windows does not raise an "
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"error for file paths containing null characters")
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def test_addpackage_import_bad_pth_file(self):
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# Issue 5258
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pth_dir, pth_fn = self.make_pth("abc\x00def\n")
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with captured_output("stderr") as err_out:
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site.addpackage(pth_dir, pth_fn, set())
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self.assertRegexpMatches(err_out.getvalue(), "line 1")
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self.assertRegexpMatches(err_out.getvalue(),
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re.escape(os.path.join(pth_dir, pth_fn)))
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# XXX: ditto previous XXX comment.
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self.assertRegexpMatches(err_out.getvalue(), 'Traceback')
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self.assertRegexpMatches(err_out.getvalue(), 'TypeError')
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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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@unittest.skipUnless(site.ENABLE_USER_SITE, "requires access to PEP 370 "
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"user-site (site.ENABLE_USER_SITE)")
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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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env = os.environ.copy()
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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, 1, "%r is not in sys.path (sys.exit returned %r)"
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% (usersite, rc))
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env = os.environ.copy()
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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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env=env)
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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.assertEqual(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.assertEqual(site.USER_SITE, user_site)
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self.assertTrue(user_site.startswith(site.USER_BASE), user_site)
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self.assertEqual(site.USER_BASE, site.getuserbase())
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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.assertEqual(dirs[0], wanted)
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elif os.sep == '/':
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# OS X, Linux, FreeBSD, etc
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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.assertEqual(dirs[0], wanted)
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wanted = os.path.join('xoxo', 'lib', 'site-python')
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self.assertEqual(dirs[1], wanted)
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else:
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# other platforms
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self.assertEqual(len(dirs), 2)
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self.assertEqual(dirs[0], 'xoxo')
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wanted = os.path.join('xoxo', 'lib', 'site-packages')
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self.assertEqual(dirs[1], wanted)
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def test_no_home_directory(self):
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# bpo-10496: getuserbase() and getusersitepackages() must not fail if
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# the current user has no home directory (if expanduser() returns the
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# path unchanged).
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site.USER_SITE = None
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site.USER_BASE = None
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sysconfig._CONFIG_VARS = None
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with EnvironmentVarGuard() as environ, \
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support.swap_attr(os.path, 'expanduser', lambda path: path):
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del environ['PYTHONUSERBASE']
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del environ['APPDATA']
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user_base = site.getuserbase()
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self.assertTrue(user_base.startswith('~' + os.sep),
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user_base)
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user_site = site.getusersitepackages()
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self.assertTrue(user_site.startswith(user_base), user_site)
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def fake_isdir(path):
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fake_isdir.arg = path
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return False
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fake_isdir.arg = None
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def must_not_be_called(*args):
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raise AssertionError
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with support.swap_attr(os.path, 'isdir', fake_isdir), \
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support.swap_attr(site, 'addsitedir', must_not_be_called), \
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support.swap_attr(site, 'ENABLE_USER_SITE', True):
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# addusersitepackages() must not add user_site to sys.path
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# if it is not an existing directory
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known_paths = set()
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site.addusersitepackages(known_paths)
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self.assertEqual(fake_isdir.arg, user_site)
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self.assertFalse(known_paths)
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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>>FILE, "#import @bad module name"
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print>>FILE, "\n"
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print>>FILE, "import %s" % self.imported
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print>>FILE, self.good_dirname
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print>>FILE, self.bad_dirname
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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__file__(self):
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# Make sure all imported modules have their __file__ attribute
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# as an absolute path.
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# Handled by abs__file__()
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site.abs__file__()
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for module in (sys, os, __builtin__):
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try:
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self.assertTrue(os.path.isabs(module.__file__), repr(module))
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except AttributeError:
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continue
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# We could try everything in sys.modules; however, when regrtest.py
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# runs something like test_frozen before test_site, then we will
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# be testing things loaded *after* test_site did path normalization
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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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@unittest.skip('test not implemented')
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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 __builtin__
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self.assertTrue(hasattr(__builtin__, "quit"))
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self.assertTrue(hasattr(__builtin__, "exit"))
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def test_setting_copyright(self):
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# 'copyright' and 'credits' should be in __builtin__
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self.assertTrue(hasattr(__builtin__, "copyright"))
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self.assertTrue(hasattr(__builtin__, "credits"))
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def test_setting_help(self):
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# 'help' should be set in __builtin__
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self.assertTrue(hasattr(__builtin__, "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.itervalues():
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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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