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"""Tests for distutils.util."""
import os
import sys
import unittest
from copy import copy
from io import BytesIO
import subprocess
from sysconfig import get_config_vars, get_platform
from distutils.errors import DistutilsPlatformError, DistutilsByteCompileError
from distutils.util import (convert_path, change_root,
check_environ, split_quoted, strtobool,
rfc822_escape, get_compiler_versions,
_find_exe_version, _MAC_OS_X_LD_VERSION,
byte_compile)
from distutils import util
from distutils.tests import support
from distutils.version import LooseVersion
class FakePopen(object):
test_class = None
def __init__(self, cmd, shell, stdout, stderr):
self.cmd = cmd.split()[0]
exes = self.test_class._exes
if self.cmd not in exes:
# we don't want to call the system, returning an empty
# output so it doesn't match
self.stdout = BytesIO()
self.stderr = BytesIO()
else:
self.stdout = BytesIO(exes[self.cmd])
self.stderr = BytesIO()
class UtilTestCase(support.EnvironGuard, unittest.TestCase):
def setUp(self):
super(UtilTestCase, self).setUp()
# saving the environment
self.name = os.name
self.platform = sys.platform
self.version = sys.version
self.sep = os.sep
self.join = os.path.join
self.isabs = os.path.isabs
self.splitdrive = os.path.splitdrive
#self._config_vars = copy(sysconfig._config_vars)
# patching os.uname
if hasattr(os, 'uname'):
self.uname = os.uname
self._uname = os.uname()
else:
self.uname = None
self._uname = None
os.uname = self._get_uname
# patching POpen
self.old_find_executable = util.find_executable
util.find_executable = self._find_executable
self._exes = {}
self.old_popen = subprocess.Popen
self.old_stdout = sys.stdout
self.old_stderr = sys.stderr
FakePopen.test_class = self
subprocess.Popen = FakePopen
def tearDown(self):
# getting back the environment
os.name = self.name
sys.platform = self.platform
sys.version = self.version
os.sep = self.sep
os.path.join = self.join
os.path.isabs = self.isabs
os.path.splitdrive = self.splitdrive
if self.uname is not None:
os.uname = self.uname
else:
del os.uname
#sysconfig._config_vars = copy(self._config_vars)
util.find_executable = self.old_find_executable
subprocess.Popen = self.old_popen
sys.old_stdout = self.old_stdout
sys.old_stderr = self.old_stderr
super(UtilTestCase, self).tearDown()
def _set_uname(self, uname):
self._uname = uname
def _get_uname(self):
return self._uname
def test_get_platform(self):
platform = util.get_platform()
self.assertEquals(platform, get_platform())
util.set_platform('MyOwnPlatform')
self.assertEquals('MyOwnPlatform', util.get_platform())
util.set_platform(platform)
def test_convert_path(self):
# linux/mac
os.sep = '/'
def _join(path):
return '/'.join(path)
os.path.join = _join
self.assertEquals(convert_path('/home/to/my/stuff'),
'/home/to/my/stuff')
# win
os.sep = '\\'
def _join(*path):
return '\\'.join(path)
os.path.join = _join
self.assertRaises(ValueError, convert_path, '/home/to/my/stuff')
self.assertRaises(ValueError, convert_path, 'home/to/my/stuff/')
self.assertEquals(convert_path('home/to/my/stuff'),
'home\\to\\my\\stuff')
self.assertEquals(convert_path('.'),
os.curdir)
def test_change_root(self):
# linux/mac
os.name = 'posix'
def _isabs(path):
return path[0] == '/'
os.path.isabs = _isabs
def _join(*path):
return '/'.join(path)
os.path.join = _join
self.assertEquals(change_root('/root', '/old/its/here'),
'/root/old/its/here')
self.assertEquals(change_root('/root', 'its/here'),
'/root/its/here')
# windows
os.name = 'nt'
def _isabs(path):
return path.startswith('c:\\')
os.path.isabs = _isabs
def _splitdrive(path):
if path.startswith('c:'):
return ('', path.replace('c:', ''))
return ('', path)
os.path.splitdrive = _splitdrive
def _join(*path):
return '\\'.join(path)
os.path.join = _join
self.assertEquals(change_root('c:\\root', 'c:\\old\\its\\here'),
'c:\\root\\old\\its\\here')
self.assertEquals(change_root('c:\\root', 'its\\here'),
'c:\\root\\its\\here')
# BugsBunny os (it's a great os)
os.name = 'BugsBunny'
self.assertRaises(DistutilsPlatformError,
change_root, 'c:\\root', 'its\\here')
# XXX platforms to be covered: os2, mac
def test_check_environ(self):
util._environ_checked = 0
if 'HOME' in os.environ:
del os.environ['HOME']
# posix without HOME
if os.name == 'posix': # this test won't run on windows
check_environ()
import pwd
self.assertEquals(os.environ['HOME'], pwd.getpwuid(os.getuid())[5])
else:
check_environ()
self.assertEquals(os.environ['PLAT'], get_platform())
self.assertEquals(util._environ_checked, 1)
def test_split_quoted(self):
self.assertEquals(split_quoted('""one"" "two" \'three\' \\four'),
['one', 'two', 'three', 'four'])
def test_strtobool(self):
yes = ('y', 'Y', 'yes', 'True', 't', 'true', 'True', 'On', 'on', '1')
no = ('n', 'no', 'f', 'false', 'off', '0', 'Off', 'No', 'N')
for y in yes:
self.assertTrue(strtobool(y))
for n in no:
self.assertTrue(not strtobool(n))
def test_rfc822_escape(self):
header = 'I am a\npoor\nlonesome\nheader\n'
res = rfc822_escape(header)
wanted = ('I am a%(8s)spoor%(8s)slonesome%(8s)s'
'header%(8s)s') % {'8s': '\n'+8*' '}
self.assertEquals(res, wanted)
def test_find_exe_version(self):
# the ld version scheme under MAC OS is:
# ^@(#)PROGRAM:ld PROJECT:ld64-VERSION
#
# where VERSION is a 2-digit number for major
# revisions. For instance under Leopard, it's
# currently 77
#
# Dots are used when branching is done.
#
# The SnowLeopard ld64 is currently 95.2.12
for output, version in ((b'@(#)PROGRAM:ld PROJECT:ld64-77', '77'),
(b'@(#)PROGRAM:ld PROJECT:ld64-95.2.12',
'95.2.12')):
result = _MAC_OS_X_LD_VERSION.search(output)
self.assertEquals(result.group(1).decode(), version)
def _find_executable(self, name):
if name in self._exes:
return name
return None
def test_get_compiler_versions(self):
# get_versions calls distutils.spawn.find_executable on
# 'gcc', 'ld' and 'dllwrap'
self.assertEquals(get_compiler_versions(), (None, None, None))
# Let's fake we have 'gcc' and it returns '3.4.5'
self._exes['gcc'] = b'gcc (GCC) 3.4.5 (mingw special)\nFSF'
res = get_compiler_versions()
self.assertEquals(str(res[0]), '3.4.5')
# and let's see what happens when the version
# doesn't match the regular expression
# (\d+\.\d+(\.\d+)*)
self._exes['gcc'] = b'very strange output'
res = get_compiler_versions()
self.assertEquals(res[0], None)
# same thing for ld
if sys.platform != 'darwin':
self._exes['ld'] = b'GNU ld version 2.17.50 20060824'
res = get_compiler_versions()
self.assertEquals(str(res[1]), '2.17.50')
self._exes['ld'] = b'@(#)PROGRAM:ld PROJECT:ld64-77'
res = get_compiler_versions()
self.assertEquals(res[1], None)
else:
self._exes['ld'] = b'GNU ld version 2.17.50 20060824'
res = get_compiler_versions()
self.assertEquals(res[1], None)
self._exes['ld'] = b'@(#)PROGRAM:ld PROJECT:ld64-77'
res = get_compiler_versions()
self.assertEquals(str(res[1]), '77')
# and dllwrap
self._exes['dllwrap'] = b'GNU dllwrap 2.17.50 20060824\nFSF'
res = get_compiler_versions()
self.assertEquals(str(res[2]), '2.17.50')
self._exes['dllwrap'] = b'Cheese Wrap'
res = get_compiler_versions()
self.assertEquals(res[2], None)
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_suite():
return unittest.makeSuite(UtilTestCase)
if __name__ == "__main__":
unittest.main(defaultTest="test_suite")
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