mirror of https://github.com/python/cpython
345 lines
12 KiB
Python
345 lines
12 KiB
Python
"""
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Tests common to genericpath, macpath, ntpath and posixpath
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"""
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import genericpath
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import os
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import sys
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import unittest
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import warnings
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from test import support
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def safe_rmdir(dirname):
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try:
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os.rmdir(dirname)
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except OSError:
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pass
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class GenericTest(unittest.TestCase):
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# The path module to be tested
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pathmodule = genericpath
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common_attributes = ['commonprefix', 'getsize', 'getatime', 'getctime',
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'getmtime', 'exists', 'isdir', 'isfile']
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attributes = []
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def test_no_argument(self):
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for attr in self.common_attributes + self.attributes:
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with self.assertRaises(TypeError):
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getattr(self.pathmodule, attr)()
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raise self.fail("{}.{}() did not raise a TypeError"
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.format(self.pathmodule.__name__, attr))
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def test_commonprefix(self):
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commonprefix = self.pathmodule.commonprefix
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self.assertEqual(
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commonprefix([]),
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""
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)
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self.assertEqual(
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commonprefix(["/home/swenson/spam", "/home/swen/spam"]),
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"/home/swen"
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)
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self.assertEqual(
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commonprefix(["/home/swen/spam", "/home/swen/eggs"]),
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"/home/swen/"
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)
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self.assertEqual(
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commonprefix(["/home/swen/spam", "/home/swen/spam"]),
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"/home/swen/spam"
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)
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self.assertEqual(
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commonprefix(["home:swenson:spam", "home:swen:spam"]),
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"home:swen"
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)
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self.assertEqual(
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commonprefix([":home:swen:spam", ":home:swen:eggs"]),
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":home:swen:"
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)
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self.assertEqual(
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commonprefix([":home:swen:spam", ":home:swen:spam"]),
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":home:swen:spam"
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)
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self.assertEqual(
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commonprefix([b"/home/swenson/spam", b"/home/swen/spam"]),
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b"/home/swen"
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)
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self.assertEqual(
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commonprefix([b"/home/swen/spam", b"/home/swen/eggs"]),
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b"/home/swen/"
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)
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self.assertEqual(
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commonprefix([b"/home/swen/spam", b"/home/swen/spam"]),
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b"/home/swen/spam"
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)
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self.assertEqual(
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commonprefix([b"home:swenson:spam", b"home:swen:spam"]),
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b"home:swen"
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)
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self.assertEqual(
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commonprefix([b":home:swen:spam", b":home:swen:eggs"]),
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b":home:swen:"
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)
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self.assertEqual(
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commonprefix([b":home:swen:spam", b":home:swen:spam"]),
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b":home:swen:spam"
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)
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testlist = ['', 'abc', 'Xbcd', 'Xb', 'XY', 'abcd',
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'aXc', 'abd', 'ab', 'aX', 'abcX']
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for s1 in testlist:
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for s2 in testlist:
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p = commonprefix([s1, s2])
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self.assertTrue(s1.startswith(p))
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self.assertTrue(s2.startswith(p))
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if s1 != s2:
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n = len(p)
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self.assertNotEqual(s1[n:n+1], s2[n:n+1])
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def test_getsize(self):
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f = open(support.TESTFN, "wb")
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try:
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f.write(b"foo")
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f.close()
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self.assertEqual(self.pathmodule.getsize(support.TESTFN), 3)
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finally:
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if not f.closed:
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f.close()
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support.unlink(support.TESTFN)
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def test_time(self):
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f = open(support.TESTFN, "wb")
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try:
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f.write(b"foo")
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f.close()
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f = open(support.TESTFN, "ab")
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f.write(b"bar")
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f.close()
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f = open(support.TESTFN, "rb")
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d = f.read()
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f.close()
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self.assertEqual(d, b"foobar")
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self.assertLessEqual(
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self.pathmodule.getctime(support.TESTFN),
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self.pathmodule.getmtime(support.TESTFN)
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)
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finally:
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if not f.closed:
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f.close()
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support.unlink(support.TESTFN)
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def test_exists(self):
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self.assertIs(self.pathmodule.exists(support.TESTFN), False)
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f = open(support.TESTFN, "wb")
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try:
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f.write(b"foo")
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f.close()
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self.assertIs(self.pathmodule.exists(support.TESTFN), True)
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if not self.pathmodule == genericpath:
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self.assertIs(self.pathmodule.lexists(support.TESTFN),
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True)
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finally:
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if not f.close():
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f.close()
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support.unlink(support.TESTFN)
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@unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
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def test_exists_fd(self):
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r, w = os.pipe()
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try:
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self.assertTrue(self.pathmodule.exists(r))
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finally:
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os.close(r)
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os.close(w)
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self.assertFalse(self.pathmodule.exists(r))
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def test_isdir(self):
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self.assertIs(self.pathmodule.isdir(support.TESTFN), False)
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f = open(support.TESTFN, "wb")
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try:
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f.write(b"foo")
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f.close()
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self.assertIs(self.pathmodule.isdir(support.TESTFN), False)
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os.remove(support.TESTFN)
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os.mkdir(support.TESTFN)
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self.assertIs(self.pathmodule.isdir(support.TESTFN), True)
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os.rmdir(support.TESTFN)
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finally:
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if not f.close():
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f.close()
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support.unlink(support.TESTFN)
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safe_rmdir(support.TESTFN)
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def test_isfile(self):
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self.assertIs(self.pathmodule.isfile(support.TESTFN), False)
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f = open(support.TESTFN, "wb")
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try:
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f.write(b"foo")
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f.close()
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self.assertIs(self.pathmodule.isfile(support.TESTFN), True)
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os.remove(support.TESTFN)
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os.mkdir(support.TESTFN)
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self.assertIs(self.pathmodule.isfile(support.TESTFN), False)
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os.rmdir(support.TESTFN)
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finally:
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if not f.close():
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f.close()
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support.unlink(support.TESTFN)
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safe_rmdir(support.TESTFN)
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# Following TestCase is not supposed to be run from test_genericpath.
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# It is inherited by other test modules (macpath, ntpath, posixpath).
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class CommonTest(GenericTest):
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# The path module to be tested
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pathmodule = None
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common_attributes = GenericTest.common_attributes + [
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# Properties
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'curdir', 'pardir', 'extsep', 'sep',
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'pathsep', 'defpath', 'altsep', 'devnull',
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# Methods
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'normcase', 'splitdrive', 'expandvars', 'normpath', 'abspath',
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'join', 'split', 'splitext', 'isabs', 'basename', 'dirname',
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'lexists', 'islink', 'ismount', 'expanduser', 'normpath', 'realpath',
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]
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def test_normcase(self):
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normcase = self.pathmodule.normcase
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# check that normcase() is idempotent
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for p in ["FoO/./BaR", b"FoO/./BaR"]:
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p = normcase(p)
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self.assertEqual(p, normcase(p))
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self.assertEqual(normcase(''), '')
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self.assertEqual(normcase(b''), b'')
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# check that normcase raises a TypeError for invalid types
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for path in (None, True, 0, 2.5, [], bytearray(b''), {'o','o'}):
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self.assertRaises(TypeError, normcase, path)
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def test_splitdrive(self):
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# splitdrive for non-NT paths
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splitdrive = self.pathmodule.splitdrive
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self.assertEqual(splitdrive("/foo/bar"), ("", "/foo/bar"))
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self.assertEqual(splitdrive("foo:bar"), ("", "foo:bar"))
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self.assertEqual(splitdrive(":foo:bar"), ("", ":foo:bar"))
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self.assertEqual(splitdrive(b"/foo/bar"), (b"", b"/foo/bar"))
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self.assertEqual(splitdrive(b"foo:bar"), (b"", b"foo:bar"))
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self.assertEqual(splitdrive(b":foo:bar"), (b"", b":foo:bar"))
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def test_expandvars(self):
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if self.pathmodule.__name__ == 'macpath':
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self.skipTest('macpath.expandvars is a stub')
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expandvars = self.pathmodule.expandvars
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with support.EnvironmentVarGuard() as env:
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env.clear()
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env["foo"] = "bar"
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env["{foo"] = "baz1"
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env["{foo}"] = "baz2"
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self.assertEqual(expandvars("foo"), "foo")
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self.assertEqual(expandvars("$foo bar"), "bar bar")
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self.assertEqual(expandvars("${foo}bar"), "barbar")
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self.assertEqual(expandvars("$[foo]bar"), "$[foo]bar")
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self.assertEqual(expandvars("$bar bar"), "$bar bar")
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self.assertEqual(expandvars("$?bar"), "$?bar")
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self.assertEqual(expandvars("${foo}bar"), "barbar")
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self.assertEqual(expandvars("$foo}bar"), "bar}bar")
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self.assertEqual(expandvars("${foo"), "${foo")
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self.assertEqual(expandvars("${{foo}}"), "baz1}")
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self.assertEqual(expandvars("$foo$foo"), "barbar")
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self.assertEqual(expandvars("$bar$bar"), "$bar$bar")
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self.assertEqual(expandvars(b"foo"), b"foo")
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self.assertEqual(expandvars(b"$foo bar"), b"bar bar")
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self.assertEqual(expandvars(b"${foo}bar"), b"barbar")
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self.assertEqual(expandvars(b"$[foo]bar"), b"$[foo]bar")
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self.assertEqual(expandvars(b"$bar bar"), b"$bar bar")
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self.assertEqual(expandvars(b"$?bar"), b"$?bar")
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self.assertEqual(expandvars(b"${foo}bar"), b"barbar")
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self.assertEqual(expandvars(b"$foo}bar"), b"bar}bar")
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self.assertEqual(expandvars(b"${foo"), b"${foo")
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self.assertEqual(expandvars(b"${{foo}}"), b"baz1}")
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self.assertEqual(expandvars(b"$foo$foo"), b"barbar")
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self.assertEqual(expandvars(b"$bar$bar"), b"$bar$bar")
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def test_abspath(self):
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self.assertIn("foo", self.pathmodule.abspath("foo"))
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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self.assertIn(b"foo", self.pathmodule.abspath(b"foo"))
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# Abspath returns bytes when the arg is bytes
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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for path in (b'', b'foo', b'f\xf2\xf2', b'/foo', b'C:\\'):
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self.assertIsInstance(self.pathmodule.abspath(path), bytes)
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def test_realpath(self):
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self.assertIn("foo", self.pathmodule.realpath("foo"))
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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self.assertIn(b"foo", self.pathmodule.realpath(b"foo"))
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def test_normpath_issue5827(self):
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# Make sure normpath preserves unicode
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for path in ('', '.', '/', '\\', '///foo/.//bar//'):
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self.assertIsInstance(self.pathmodule.normpath(path), str)
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def test_abspath_issue3426(self):
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# Check that abspath returns unicode when the arg is unicode
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# with both ASCII and non-ASCII cwds.
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abspath = self.pathmodule.abspath
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for path in ('', 'fuu', 'f\xf9\xf9', '/fuu', 'U:\\'):
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self.assertIsInstance(abspath(path), str)
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unicwd = '\xe7w\xf0'
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try:
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os.fsencode(unicwd)
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except (AttributeError, UnicodeEncodeError):
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# FS encoding is probably ASCII
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pass
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else:
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with support.temp_cwd(unicwd):
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for path in ('', 'fuu', 'f\xf9\xf9', '/fuu', 'U:\\'):
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self.assertIsInstance(abspath(path), str)
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def test_nonascii_abspath(self):
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# Test non-ASCII in the path
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if sys.platform in ('win32', 'darwin'):
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if support.TESTFN_NONASCII:
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name = support.TESTFN_NONASCII
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else:
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# Mac OS X denies the creation of a directory with an invalid
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# UTF-8 name. Windows allows to create a directory with an
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# arbitrary bytes name, but fails to enter this directory
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# (when the bytes name is used).
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self.skipTest("need support.TESTFN_NONASCII")
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else:
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if support.TESTFN_UNDECODABLE:
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name = support.TESTFN_UNDECODABLE
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elif support.TESTFN_NONASCII:
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name = support.TESTFN_NONASCII
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else:
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# On UNIX, the surrogateescape error handler is used to
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# decode paths, so any byte is allowed, it does not depend
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# on the locale
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name = b'a\xffb\xe7w\xf0'
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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with support.temp_cwd(name):
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self.test_abspath()
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def test_main():
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support.run_unittest(GenericTest)
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if __name__=="__main__":
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test_main()
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