test_dir_util.py

"""Tests for distutils.dir_util."""
importunittest
importos
importstat
importsys
fromunittest.mockimportpatch

fromdistutilsimportdir_util, errors
fromdistutils.dir_utilimport (mkpath, remove_tree, create_tree, copy_tree,
ensure_relative)

fromdistutilsimportlog
fromdistutils.testsimportsupport
fromtest.supportimportrun_unittest


classDirUtilTestCase(support.TempdirManager, unittest.TestCase):

def_log(self, msg, *args):
iflen(args) >0:
self._logs.append(msg%args)
else:
self._logs.append(msg)

defsetUp(self):
super(DirUtilTestCase, self).setUp()
self._logs= []
tmp_dir=self.mkdtemp()
self.root_target=os.path.join(tmp_dir, 'deep')
self.target=os.path.join(self.root_target, 'here')
self.target2=os.path.join(tmp_dir, 'deep2')
self.old_log=log.info
log.info=self._log

deftearDown(self):
log.info=self.old_log
super(DirUtilTestCase, self).tearDown()

deftest_mkpath_remove_tree_verbosity(self):

mkpath(self.target, verbose=0)
wanted= []
self.assertEqual(self._logs, wanted)
remove_tree(self.root_target, verbose=0)

mkpath(self.target, verbose=1)
wanted= ['creating %s'%self.root_target,
'creating %s'%self.target]
self.assertEqual(self._logs, wanted)
self._logs= []

remove_tree(self.root_target, verbose=1)
wanted= ["removing '%s' (and everything under it)"%self.root_target]
self.assertEqual(self._logs, wanted)

@unittest.skipIf(sys.platform.startswith('win'),
"This test is only appropriate for POSIX-like systems.")
deftest_mkpath_with_custom_mode(self):
# Get and set the current umask value for testing mode bits.
umask=os.umask(0o002)
os.umask(umask)
mkpath(self.target, 0o700)
self.assertEqual(
stat.S_IMODE(os.stat(self.target).st_mode), 0o700&~umask)
mkpath(self.target2, 0o555)
self.assertEqual(
stat.S_IMODE(os.stat(self.target2).st_mode), 0o555&~umask)

deftest_create_tree_verbosity(self):

create_tree(self.root_target, ['one', 'two', 'three'], verbose=0)
self.assertEqual(self._logs, [])
remove_tree(self.root_target, verbose=0)

wanted= ['creating %s'%self.root_target]
create_tree(self.root_target, ['one', 'two', 'three'], verbose=1)
self.assertEqual(self._logs, wanted)

remove_tree(self.root_target, verbose=0)

deftest_copy_tree_verbosity(self):

mkpath(self.target, verbose=0)

copy_tree(self.target, self.target2, verbose=0)
self.assertEqual(self._logs, [])

remove_tree(self.root_target, verbose=0)

mkpath(self.target, verbose=0)
a_file=os.path.join(self.target, 'ok.txt')
withopen(a_file, 'w') asf:
f.write('some content')

wanted= ['copying %s -> %s'% (a_file, self.target2)]
copy_tree(self.target, self.target2, verbose=1)
self.assertEqual(self._logs, wanted)

remove_tree(self.root_target, verbose=0)
remove_tree(self.target2, verbose=0)

deftest_copy_tree_skips_nfs_temp_files(self):
mkpath(self.target, verbose=0)

a_file=os.path.join(self.target, 'ok.txt')
nfs_file=os.path.join(self.target, '.nfs123abc')
forfina_file, nfs_file:
withopen(f, 'w') asfh:
fh.write('some content')

copy_tree(self.target, self.target2)
self.assertEqual(os.listdir(self.target2), ['ok.txt'])

remove_tree(self.root_target, verbose=0)
remove_tree(self.target2, verbose=0)

deftest_ensure_relative(self):
ifos.sep=='/':
self.assertEqual(ensure_relative('/home/foo'), 'home/foo')
self.assertEqual(ensure_relative('some/path'), 'some/path')
else: # \\
self.assertEqual(ensure_relative('c:\\home\\foo'), 'c:home\\foo')
self.assertEqual(ensure_relative('home\\foo'), 'home\\foo')

deftest_copy_tree_exception_in_listdir(self):
"""
 An exception in listdir should raise a DistutilsFileError
 """
withpatch("os.listdir", side_effect=OSError()), \
self.assertRaises(errors.DistutilsFileError):
src=self.tempdirs[-1]
dir_util.copy_tree(src, None)


deftest_suite():
returnunittest.makeSuite(DirUtilTestCase)

if__name__=="__main__":
run_unittest(test_suite())