"""
Tests common to genericpath, macpath, ntpath and posixpath
"""
import unittest
from test import test_support
import os
import genericpath
import sys
def safe_rmdir(dirname):
try:
os.rmdir(dirname)
except OSError:
pass
class GenericTest(unittest.TestCase):
# The path module to be tested
pathmodule = genericpath
common_attributes = ['commonprefix', 'getsize', 'getatime', 'getctime',
'getmtime', 'exists', 'isdir', 'isfile']
attributes = []
def test_no_argument(self):
for attr in self.common_attributes + self.attributes:
with self.assertRaises(TypeError):
getattr(self.pathmodule, attr)()
raise self.fail("{}.{}() did not raise a TypeError"
.format(self.pathmodule.__name__, attr))
def test_commonprefix(self):
commonprefix = self.pathmodule.commonprefix
self.assertEqual(
commonprefix([]),
""
)
self.assertEqual(
commonprefix(["/home/swenson/spam", "/home/swen/spam"]),
"/home/swen"
)
self.assertEqual(
commonprefix(["/home/swen/spam", "/home/swen/eggs"]),
"/home/swen/"
)
self.assertEqual(
commonprefix(["/home/swen/spam", "/home/swen/spam"]),
"/home/swen/spam"
)
self.assertEqual(
commonprefix(["home:swenson:spam", "home:swen:spam"]),
"home:swen"
)
self.assertEqual(
commonprefix([":home:swen:spam", ":home:swen:eggs"]),
":home:swen:"
)
self.assertEqual(
commonprefix([":home:swen:spam", ":home:swen:spam"]),
":home:swen:spam"
)
testlist = ['', 'abc', 'Xbcd', 'Xb', 'XY', 'abcd',
'aXc', 'abd', 'ab', 'aX', 'abcX']
for s1 in testlist:
for s2 in testlist:
p = commonprefix([s1, s2])
self.assertTrue(s1.startswith(p))
self.assertTrue(s2.startswith(p))
if s1 != s2:
n = len(p)
self.assertNotEqual(s1[n:n+1], s2[n:n+1])
def test_getsize(self):
f = open(test_support.TESTFN, "wb")
try:
f.write("foo")
f.close()
self.assertEqual(self.pathmodule.getsize(test_support.TESTFN), 3)
finally:
if not f.closed:
f.close()
test_support.unlink(test_support.TESTFN)
def test_time(self):
f = open(test_support.TESTFN, "wb")
try:
f.write("foo")
f.close()
f = open(test_support.TESTFN, "ab")
f.write("bar")
f.close()
f = open(test_support.TESTFN, "rb")
d = f.read()
f.close()
self.assertEqual(d, "foobar")
self.assertLessEqual(
self.pathmodule.getctime(test_support.TESTFN),
self.pathmodule.getmtime(test_support.TESTFN)
)
finally:
if not f.closed:
f.close()
test_support.unlink(test_support.TESTFN)
def test_exists(self):
self.assertIs(self.pathmodule.exists(test_support.TESTFN), False)
f = open(test_support.TESTFN, "wb")
try:
f.write("foo")
f.close()
self.assertIs(self.pathmodule.exists(test_support.TESTFN), True)
if not self.pathmodule == genericpath:
self.assertIs(self.pathmodule.lexists(test_support.TESTFN),
True)
finally:
if not f.close():
f.close()
test_support.unlink(test_support.TESTFN)
def test_isdir(self):
self.assertIs(self.pathmodule.isdir(test_support.TESTFN), False)
f = open(test_support.TESTFN, "wb")
try:
f.write("foo")
f.close()
self.assertIs(self.pathmodule.isdir(test_support.TESTFN), False)
os.remove(test_support.TESTFN)
os.mkdir(test_support.TESTFN)
self.assertIs(self.pathmodule.isdir(test_support.TESTFN), True)
os.rmdir(test_support.TESTFN)
finally:
if not f.close():
f.close()
test_support.unlink(test_support.TESTFN)
safe_rmdir(test_support.TESTFN)
def test_isfile(self):
self.assertIs(self.pathmodule.isfile(test_support.TESTFN), False)
f = open(test_support.TESTFN, "wb")
try:
f.write("foo")
f.close()
self.assertIs(self.pathmodule.isfile(test_support.TESTFN), True)
os.remove(test_support.TESTFN)
os.mkdir(test_support.TESTFN)
self.assertIs(self.pathmodule.isfile(test_support.TESTFN), False)
os.rmdir(test_support.TESTFN)
finally:
if not f.close():
f.close()
test_support.unlink(test_support.TESTFN)
safe_rmdir(test_support.TESTFN)
# Following TestCase is not supposed to be run from test_genericpath.
# It is inherited by other test modules (macpath, ntpath, posixpath).
class CommonTest(GenericTest):
# The path module to be tested
pathmodule = None
common_attributes = GenericTest.common_attributes + [
# Properties
'curdir', 'pardir', 'extsep', 'sep',
'pathsep', 'defpath', 'altsep', 'devnull',
# Methods
'normcase', 'splitdrive', 'expandvars', 'normpath', 'abspath',
'join', 'split', 'splitext', 'isabs', 'basename', 'dirname',
'lexists', 'islink', 'ismount', 'expanduser', 'normpath', 'realpath',
]
def test_normcase(self):
# Check that normcase() is idempotent
p = "FoO/./BaR"
p = self.pathmodule.normcase(p)
self.assertEqual(p, self.pathmodule.normcase(p))
def test_splitdrive(self):
# splitdrive for non-NT paths
splitdrive = self.pathmodule.splitdrive
self.assertEqual(splitdrive("/foo/bar"), ("", "/foo/bar"))
self.assertEqual(splitdrive("foo:bar"), ("", "foo:bar"))
self.assertEqual(splitdrive(":foo:bar"), ("", ":foo:bar"))
def test_expandvars(self):
if self.pathmodule.__name__ == 'macpath':
self.skipTest('macpath.expandvars is a stub')
expandvars = self.pathmodule.expandvars
with test_support.EnvironmentVarGuard() as env:
env.clear()
env["foo"] = "bar"
env["{foo"] = "baz1"
env["{foo}"] = "baz2"
self.assertEqual(expandvars("foo"), "foo")
self.assertEqual(expandvars("$foo bar"), "bar bar")
self.assertEqual(expandvars("${foo}bar"), "barbar")
self.assertEqual(expandvars("$[foo]bar"), "$[foo]bar")
self.assertEqual(expandvars("$bar bar"), "$bar bar")
self.assertEqual(expandvars("$?bar"), "$?bar")
self.assertEqual(expandvars("${foo}bar"), "barbar")
self.assertEqual(expandvars("$foo}bar"), "bar}bar")
self.assertEqual(expandvars("${foo"), "${foo")
self.assertEqual(expandvars("${{foo}}"), "baz1}")
self.assertEqual(expandvars("$foo$foo"), "barbar")
self.assertEqual(expandvars("$bar$bar"), "$bar$bar")
def test_abspath(self):
self.assertIn("foo", self.pathmodule.abspath("foo"))
# Abspath returns bytes when the arg is bytes
for path in ('', 'foo', 'f\xf2\xf2', '/foo', 'C:\\'):
self.assertIsInstance(self.pathmodule.abspath(path), str)
def test_realpath(self):
self.assertIn("foo", self.pathmodule.realpath("foo"))
def test_normpath_issue5827(self):
# Make sure normpath preserves unicode
for path in (u'', u'.', u'/', u'\\', u'///foo/.//bar//'):
self.assertIsInstance(self.pathmodule.normpath(path), unicode)
def test_abspath_issue3426(self):
# Check that abspath returns unicode when the arg is unicode
# with both ASCII and non-ASCII cwds.
abspath = self.pathmodule.abspath
for path in (u'', u'fuu', u'f\xf9\xf9', u'/fuu', u'U:\\'):
self.assertIsInstance(abspath(path), unicode)
unicwd = u'\xe7w\xf0'
try:
fsencoding = test_support.TESTFN_ENCODING or "ascii"
unicwd.encode(fsencoding)
except (AttributeError, UnicodeEncodeError):
# FS encoding is probably ASCII
pass
else:
with test_support.temp_cwd(unicwd):
for path in (u'', u'fuu', u'f\xf9\xf9', u'/fuu', u'U:\\'):
self.assertIsInstance(abspath(path), unicode)
@unittest.skipIf(sys.platform == 'darwin',
"Mac OS X denies the creation of a directory with an invalid utf8 name")
def test_nonascii_abspath(self):
# Test non-ASCII, non-UTF8 bytes in the path.
with test_support.temp_cwd('\xe7w\xf0'):
self.test_abspath()
def test_main():
test_support.run_unittest(GenericTest)
if __name__=="__main__":
test_main()