cpython/Lib/distutils/tests/test_util.py

73 lines
2.3 KiB
Python

"""Tests for distutils.util."""
import os
import sys
import unittest
from test.test_support import run_unittest, swap_attr
from distutils.errors import DistutilsByteCompileError
from distutils.tests import support
from distutils import util # used to patch _environ_checked
from distutils.util import (byte_compile, grok_environment_error,
check_environ, get_platform)
class UtilTestCase(support.EnvironGuard, unittest.TestCase):
def test_dont_write_bytecode(self):
# makes sure byte_compile raise a DistutilsError
# if sys.dont_write_bytecode is True
old_dont_write_bytecode = sys.dont_write_bytecode
sys.dont_write_bytecode = True
try:
self.assertRaises(DistutilsByteCompileError, byte_compile, [])
finally:
sys.dont_write_bytecode = old_dont_write_bytecode
def test_grok_environment_error(self):
# test obsolete function to ensure backward compat (#4931)
exc = IOError("Unable to find batch file")
msg = grok_environment_error(exc)
self.assertEqual(msg, "error: Unable to find batch file")
def test_check_environ(self):
util._environ_checked = 0
os.environ.pop('HOME', None)
check_environ()
self.assertEqual(os.environ['PLAT'], get_platform())
self.assertEqual(util._environ_checked, 1)
@unittest.skipUnless(os.name == 'posix', 'specific to posix')
def test_check_environ_getpwuid(self):
util._environ_checked = 0
os.environ.pop('HOME', None)
import pwd
# only set pw_dir field, other fields are not used
def mock_getpwuid(uid):
return pwd.struct_passwd((None, None, None, None, None,
'/home/distutils', None))
with swap_attr(pwd, 'getpwuid', mock_getpwuid):
check_environ()
self.assertEqual(os.environ['HOME'], '/home/distutils')
util._environ_checked = 0
os.environ.pop('HOME', None)
# bpo-10496: Catch pwd.getpwuid() error
def getpwuid_err(uid):
raise KeyError
with swap_attr(pwd, 'getpwuid', getpwuid_err):
check_environ()
self.assertNotIn('HOME', os.environ)
def test_suite():
return unittest.makeSuite(UtilTestCase)
if __name__ == "__main__":
run_unittest(test_suite())