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Copy pathtest_pathlib_abc.py
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1136 lines (1001 loc) · 44.6 KB
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import collections
import io
import os
import errno
import unittest
from pathlib._os import magic_open
from pathlib.types import _PathParser, PathInfo, _JoinablePath, _ReadablePath, _WritablePath
import posixpath
from test.support.os_helper import TESTFN
_tests_needing_posix = set()
_tests_needing_windows = set()
def needs_posix(fn):
"""Decorator that marks a test as requiring a POSIX-flavoured path class."""
_tests_needing_posix.add(fn.__name__)
return fn
def needs_windows(fn):
"""Decorator that marks a test as requiring a Windows-flavoured path class."""
_tests_needing_windows.add(fn.__name__)
return fn
#
# Tests for the pure classes.
#
class DummyJoinablePath(_JoinablePath):
__slots__ = ('_segments',)
parser = posixpath
def __init__(self, *segments):
self._segments = segments
def __str__(self):
if self._segments:
return self.parser.join(*self._segments)
return ''
def __eq__(self, other):
if not isinstance(other, DummyJoinablePath):
return NotImplemented
return str(self) == str(other)
def __hash__(self):
return hash(str(self))
def __repr__(self):
return "{}({!r})".format(self.__class__.__name__, str(self))
def with_segments(self, *pathsegments):
return type(self)(*pathsegments)
class JoinablePathTest(unittest.TestCase):
cls = DummyJoinablePath
# Use a base path that's unrelated to any real filesystem path.
base = f'/this/path/kills/fascists/{TESTFN}'
def setUp(self):
name = self.id().split('.')[-1]
if name in _tests_needing_posix and self.cls.parser is not posixpath:
self.skipTest('requires POSIX-flavoured path class')
if name in _tests_needing_windows and self.cls.parser is posixpath:
self.skipTest('requires Windows-flavoured path class')
p = self.cls('a')
self.parser = p.parser
self.sep = self.parser.sep
self.altsep = self.parser.altsep
def _check_str_subclass(self, *args):
# Issue #21127: it should be possible to construct a PurePath object
# from a str subclass instance, and it then gets converted to
# a pure str object.
class StrSubclass(str):
pass
P = self.cls
p = P(*(StrSubclass(x) for x in args))
self.assertEqual(p, P(*args))
for part in p.parts:
self.assertIs(type(part), str)
def test_str_subclass_common(self):
self._check_str_subclass('')
self._check_str_subclass('.')
self._check_str_subclass('a')
self._check_str_subclass('a/b.txt')
self._check_str_subclass('/a/b.txt')
@needs_windows
def test_str_subclass_windows(self):
self._check_str_subclass('.\\a:b')
self._check_str_subclass('c:')
self._check_str_subclass('c:a')
self._check_str_subclass('c:a\\b.txt')
self._check_str_subclass('c:\\')
self._check_str_subclass('c:\\a')
self._check_str_subclass('c:\\a\\b.txt')
self._check_str_subclass('\\\\some\\share')
self._check_str_subclass('\\\\some\\share\\a')
self._check_str_subclass('\\\\some\\share\\a\\b.txt')
@needs_posix
def test_join_posix(self):
P = self.cls
p = P('//a')
pp = p.joinpath('b')
self.assertEqual(pp, P('//a/b'))
pp = P('/a').joinpath('//c')
self.assertEqual(pp, P('//c'))
pp = P('//a').joinpath('/c')
self.assertEqual(pp, P('/c'))
@needs_windows
def test_join_windows(self):
P = self.cls
p = P('C:/a/b')
pp = p.joinpath('x/y')
self.assertEqual(pp, P('C:/a/b/x/y'))
pp = p.joinpath('/x/y')
self.assertEqual(pp, P('C:/x/y'))
# Joining with a different drive => the first path is ignored, even
# if the second path is relative.
pp = p.joinpath('D:x/y')
self.assertEqual(pp, P('D:x/y'))
pp = p.joinpath('D:/x/y')
self.assertEqual(pp, P('D:/x/y'))
pp = p.joinpath('//host/share/x/y')
self.assertEqual(pp, P('//host/share/x/y'))
# Joining with the same drive => the first path is appended to if
# the second path is relative.
pp = p.joinpath('c:x/y')
self.assertEqual(pp, P('C:/a/b/x/y'))
pp = p.joinpath('c:/x/y')
self.assertEqual(pp, P('C:/x/y'))
# Joining with files with NTFS data streams => the filename should
# not be parsed as a drive letter
pp = p.joinpath(P('./d:s'))
self.assertEqual(pp, P('C:/a/b/d:s'))
pp = p.joinpath(P('./dd:s'))
self.assertEqual(pp, P('C:/a/b/dd:s'))
pp = p.joinpath(P('E:d:s'))
self.assertEqual(pp, P('E:d:s'))
# Joining onto a UNC path with no root
pp = P('//').joinpath('server')
self.assertEqual(pp, P('//server'))
pp = P('//server').joinpath('share')
self.assertEqual(pp, P('//server/share'))
pp = P('//./BootPartition').joinpath('Windows')
self.assertEqual(pp, P('//./BootPartition/Windows'))
@needs_posix
def test_div_posix(self):
# Basically the same as joinpath().
P = self.cls
p = P('//a')
pp = p / 'b'
self.assertEqual(pp, P('//a/b'))
pp = P('/a') / '//c'
self.assertEqual(pp, P('//c'))
pp = P('//a') / '/c'
self.assertEqual(pp, P('/c'))
@needs_windows
def test_div_windows(self):
# Basically the same as joinpath().
P = self.cls
p = P('C:/a/b')
self.assertEqual(p / 'x/y', P('C:/a/b/x/y'))
self.assertEqual(p / 'x' / 'y', P('C:/a/b/x/y'))
self.assertEqual(p / '/x/y', P('C:/x/y'))
self.assertEqual(p / '/x' / 'y', P('C:/x/y'))
# Joining with a different drive => the first path is ignored, even
# if the second path is relative.
self.assertEqual(p / 'D:x/y', P('D:x/y'))
self.assertEqual(p / 'D:' / 'x/y', P('D:x/y'))
self.assertEqual(p / 'D:/x/y', P('D:/x/y'))
self.assertEqual(p / 'D:' / '/x/y', P('D:/x/y'))
self.assertEqual(p / '//host/share/x/y', P('//host/share/x/y'))
# Joining with the same drive => the first path is appended to if
# the second path is relative.
self.assertEqual(p / 'c:x/y', P('C:/a/b/x/y'))
self.assertEqual(p / 'c:/x/y', P('C:/x/y'))
# Joining with files with NTFS data streams => the filename should
# not be parsed as a drive letter
self.assertEqual(p / P('./d:s'), P('C:/a/b/d:s'))
self.assertEqual(p / P('./dd:s'), P('C:/a/b/dd:s'))
self.assertEqual(p / P('E:d:s'), P('E:d:s'))
def _check_str(self, expected, args):
p = self.cls(*args)
self.assertEqual(str(p), expected.replace('/', self.sep))
def test_str_common(self):
# Canonicalized paths roundtrip.
for pathstr in ('a', 'a/b', 'a/b/c', '/', '/a/b', '/a/b/c'):
self._check_str(pathstr, (pathstr,))
# Other tests for str() are in test_equivalences().
@needs_windows
def test_str_windows(self):
p = self.cls('a/b/c')
self.assertEqual(str(p), 'a\\b\\c')
p = self.cls('c:/a/b/c')
self.assertEqual(str(p), 'c:\\a\\b\\c')
p = self.cls('//a/b')
self.assertEqual(str(p), '\\\\a\\b\\')
p = self.cls('//a/b/c')
self.assertEqual(str(p), '\\\\a\\b\\c')
p = self.cls('//a/b/c/d')
self.assertEqual(str(p), '\\\\a\\b\\c\\d')
@needs_windows
def test_parts_windows(self):
P = self.cls
p = P('c:a/b')
parts = p.parts
self.assertEqual(parts, ('c:', 'a', 'b'))
p = P('c:/a/b')
parts = p.parts
self.assertEqual(parts, ('c:\\', 'a', 'b'))
p = P('//a/b/c/d')
parts = p.parts
self.assertEqual(parts, ('\\\\a\\b\\', 'c', 'd'))
@needs_windows
def test_parent_windows(self):
# Anchored
P = self.cls
p = P('z:a/b/c')
self.assertEqual(p.parent, P('z:a/b'))
self.assertEqual(p.parent.parent, P('z:a'))
self.assertEqual(p.parent.parent.parent, P('z:'))
self.assertEqual(p.parent.parent.parent.parent, P('z:'))
p = P('z:/a/b/c')
self.assertEqual(p.parent, P('z:/a/b'))
self.assertEqual(p.parent.parent, P('z:/a'))
self.assertEqual(p.parent.parent.parent, P('z:/'))
self.assertEqual(p.parent.parent.parent.parent, P('z:/'))
p = P('//a/b/c/d')
self.assertEqual(p.parent, P('//a/b/c'))
self.assertEqual(p.parent.parent, P('//a/b'))
self.assertEqual(p.parent.parent.parent, P('//a/b'))
@needs_windows
def test_parents_windows(self):
# Anchored
P = self.cls
p = P('z:a/b/')
par = p.parents
self.assertEqual(len(par), 2)
self.assertEqual(par[0], P('z:a'))
self.assertEqual(par[1], P('z:'))
self.assertEqual(par[0:1], (P('z:a'),))
self.assertEqual(par[:-1], (P('z:a'),))
self.assertEqual(par[:2], (P('z:a'), P('z:')))
self.assertEqual(par[1:], (P('z:'),))
self.assertEqual(par[::2], (P('z:a'),))
self.assertEqual(par[::-1], (P('z:'), P('z:a')))
self.assertEqual(list(par), [P('z:a'), P('z:')])
with self.assertRaises(IndexError):
par[2]
p = P('z:/a/b/')
par = p.parents
self.assertEqual(len(par), 2)
self.assertEqual(par[0], P('z:/a'))
self.assertEqual(par[1], P('z:/'))
self.assertEqual(par[0:1], (P('z:/a'),))
self.assertEqual(par[0:-1], (P('z:/a'),))
self.assertEqual(par[:2], (P('z:/a'), P('z:/')))
self.assertEqual(par[1:], (P('z:/'),))
self.assertEqual(par[::2], (P('z:/a'),))
self.assertEqual(par[::-1], (P('z:/'), P('z:/a'),))
self.assertEqual(list(par), [P('z:/a'), P('z:/')])
with self.assertRaises(IndexError):
par[2]
p = P('//a/b/c/d')
par = p.parents
self.assertEqual(len(par), 2)
self.assertEqual(par[0], P('//a/b/c'))
self.assertEqual(par[1], P('//a/b'))
self.assertEqual(par[0:1], (P('//a/b/c'),))
self.assertEqual(par[0:-1], (P('//a/b/c'),))
self.assertEqual(par[:2], (P('//a/b/c'), P('//a/b')))
self.assertEqual(par[1:], (P('//a/b'),))
self.assertEqual(par[::2], (P('//a/b/c'),))
self.assertEqual(par[::-1], (P('//a/b'), P('//a/b/c')))
self.assertEqual(list(par), [P('//a/b/c'), P('//a/b')])
with self.assertRaises(IndexError):
par[2]
@needs_windows
def test_anchor_windows(self):
P = self.cls
self.assertEqual(P('c:').anchor, 'c:')
self.assertEqual(P('c:a/b').anchor, 'c:')
self.assertEqual(P('c:/').anchor, 'c:\\')
self.assertEqual(P('c:/a/b/').anchor, 'c:\\')
self.assertEqual(P('//a/b').anchor, '\\\\a\\b\\')
self.assertEqual(P('//a/b/').anchor, '\\\\a\\b\\')
self.assertEqual(P('//a/b/c/d').anchor, '\\\\a\\b\\')
@needs_windows
def test_name_windows(self):
P = self.cls
self.assertEqual(P('c:').name, '')
self.assertEqual(P('c:/').name, '')
self.assertEqual(P('c:a/b').name, 'b')
self.assertEqual(P('c:/a/b').name, 'b')
self.assertEqual(P('c:a/b.py').name, 'b.py')
self.assertEqual(P('c:/a/b.py').name, 'b.py')
self.assertEqual(P('//My.py/Share.php').name, '')
self.assertEqual(P('//My.py/Share.php/a/b').name, 'b')
@needs_windows
def test_suffix_windows(self):
P = self.cls
self.assertEqual(P('c:').suffix, '')
self.assertEqual(P('c:/').suffix, '')
self.assertEqual(P('c:a/b').suffix, '')
self.assertEqual(P('c:/a/b').suffix, '')
self.assertEqual(P('c:a/b.py').suffix, '.py')
self.assertEqual(P('c:/a/b.py').suffix, '.py')
self.assertEqual(P('c:a/.hgrc').suffix, '')
self.assertEqual(P('c:/a/.hgrc').suffix, '')
self.assertEqual(P('c:a/.hg.rc').suffix, '.rc')
self.assertEqual(P('c:/a/.hg.rc').suffix, '.rc')
self.assertEqual(P('c:a/b.tar.gz').suffix, '.gz')
self.assertEqual(P('c:/a/b.tar.gz').suffix, '.gz')
self.assertEqual(P('c:a/trailing.dot.').suffix, '.')
self.assertEqual(P('c:/a/trailing.dot.').suffix, '.')
self.assertEqual(P('//My.py/Share.php').suffix, '')
self.assertEqual(P('//My.py/Share.php/a/b').suffix, '')
@needs_windows
def test_suffixes_windows(self):
P = self.cls
self.assertEqual(P('c:').suffixes, [])
self.assertEqual(P('c:/').suffixes, [])
self.assertEqual(P('c:a/b').suffixes, [])
self.assertEqual(P('c:/a/b').suffixes, [])
self.assertEqual(P('c:a/b.py').suffixes, ['.py'])
self.assertEqual(P('c:/a/b.py').suffixes, ['.py'])
self.assertEqual(P('c:a/.hgrc').suffixes, [])
self.assertEqual(P('c:/a/.hgrc').suffixes, [])
self.assertEqual(P('c:a/.hg.rc').suffixes, ['.rc'])
self.assertEqual(P('c:/a/.hg.rc').suffixes, ['.rc'])
self.assertEqual(P('c:a/b.tar.gz').suffixes, ['.tar', '.gz'])
self.assertEqual(P('c:/a/b.tar.gz').suffixes, ['.tar', '.gz'])
self.assertEqual(P('//My.py/Share.php').suffixes, [])
self.assertEqual(P('//My.py/Share.php/a/b').suffixes, [])
self.assertEqual(P('c:a/trailing.dot.').suffixes, ['.dot', '.'])
self.assertEqual(P('c:/a/trailing.dot.').suffixes, ['.dot', '.'])
@needs_windows
def test_stem_windows(self):
P = self.cls
self.assertEqual(P('c:').stem, '')
self.assertEqual(P('c:.').stem, '')
self.assertEqual(P('c:..').stem, '..')
self.assertEqual(P('c:/').stem, '')
self.assertEqual(P('c:a/b').stem, 'b')
self.assertEqual(P('c:a/b.py').stem, 'b')
self.assertEqual(P('c:a/.hgrc').stem, '.hgrc')
self.assertEqual(P('c:a/.hg.rc').stem, '.hg')
self.assertEqual(P('c:a/b.tar.gz').stem, 'b.tar')
self.assertEqual(P('c:a/trailing.dot.').stem, 'trailing.dot')
@needs_windows
def test_with_name_windows(self):
P = self.cls
self.assertEqual(P('c:a/b').with_name('d.xml'), P('c:a/d.xml'))
self.assertEqual(P('c:/a/b').with_name('d.xml'), P('c:/a/d.xml'))
self.assertEqual(P('c:a/Dot ending.').with_name('d.xml'), P('c:a/d.xml'))
self.assertEqual(P('c:/a/Dot ending.').with_name('d.xml'), P('c:/a/d.xml'))
self.assertRaises(ValueError, P('c:').with_name, 'd.xml')
self.assertRaises(ValueError, P('c:/').with_name, 'd.xml')
self.assertRaises(ValueError, P('//My/Share').with_name, 'd.xml')
self.assertEqual(str(P('a').with_name('d:')), '.\\d:')
self.assertEqual(str(P('a').with_name('d:e')), '.\\d:e')
self.assertEqual(P('c:a/b').with_name('d:'), P('c:a/d:'))
self.assertEqual(P('c:a/b').with_name('d:e'), P('c:a/d:e'))
self.assertRaises(ValueError, P('c:a/b').with_name, 'd:/e')
self.assertRaises(ValueError, P('c:a/b').with_name, '//My/Share')
@needs_windows
def test_with_stem_windows(self):
P = self.cls
self.assertEqual(P('c:a/b').with_stem('d'), P('c:a/d'))
self.assertEqual(P('c:/a/b').with_stem('d'), P('c:/a/d'))
self.assertEqual(P('c:a/Dot ending.').with_stem('d'), P('c:a/d.'))
self.assertEqual(P('c:/a/Dot ending.').with_stem('d'), P('c:/a/d.'))
self.assertRaises(ValueError, P('c:').with_stem, 'd')
self.assertRaises(ValueError, P('c:/').with_stem, 'd')
self.assertRaises(ValueError, P('//My/Share').with_stem, 'd')
self.assertEqual(str(P('a').with_stem('d:')), '.\\d:')
self.assertEqual(str(P('a').with_stem('d:e')), '.\\d:e')
self.assertEqual(P('c:a/b').with_stem('d:'), P('c:a/d:'))
self.assertEqual(P('c:a/b').with_stem('d:e'), P('c:a/d:e'))
self.assertRaises(ValueError, P('c:a/b').with_stem, 'd:/e')
self.assertRaises(ValueError, P('c:a/b').with_stem, '//My/Share')
@needs_windows
def test_with_suffix_windows(self):
P = self.cls
self.assertEqual(P('c:a/b').with_suffix('.gz'), P('c:a/b.gz'))
self.assertEqual(P('c:/a/b').with_suffix('.gz'), P('c:/a/b.gz'))
self.assertEqual(P('c:a/b.py').with_suffix('.gz'), P('c:a/b.gz'))
self.assertEqual(P('c:/a/b.py').with_suffix('.gz'), P('c:/a/b.gz'))
# Path doesn't have a "filename" component.
self.assertRaises(ValueError, P('').with_suffix, '.gz')
self.assertRaises(ValueError, P('.').with_suffix, '.gz')
self.assertRaises(ValueError, P('/').with_suffix, '.gz')
self.assertRaises(ValueError, P('//My/Share').with_suffix, '.gz')
# Invalid suffix.
self.assertRaises(ValueError, P('c:a/b').with_suffix, 'gz')
self.assertRaises(ValueError, P('c:a/b').with_suffix, '/')
self.assertRaises(ValueError, P('c:a/b').with_suffix, '\\')
self.assertRaises(ValueError, P('c:a/b').with_suffix, 'c:')
self.assertRaises(ValueError, P('c:a/b').with_suffix, '/.gz')
self.assertRaises(ValueError, P('c:a/b').with_suffix, '\\.gz')
self.assertRaises(ValueError, P('c:a/b').with_suffix, 'c:.gz')
self.assertRaises(ValueError, P('c:a/b').with_suffix, 'c/d')
self.assertRaises(ValueError, P('c:a/b').with_suffix, 'c\\d')
self.assertRaises(ValueError, P('c:a/b').with_suffix, '.c/d')
self.assertRaises(ValueError, P('c:a/b').with_suffix, '.c\\d')
self.assertRaises(TypeError, P('c:a/b').with_suffix, None)
#
# Tests for the virtual classes.
#
class DummyWritablePathIO(io.BytesIO):
"""
Used by DummyWritablePath to implement `__open_wb__()`
"""
def __init__(self, files, path):
super().__init__()
self.files = files
self.path = path
def close(self):
self.files[self.path] = self.getvalue()
super().close()
class DummyReadablePathInfo:
__slots__ = ('_is_dir', '_is_file')
def __init__(self, is_dir, is_file):
self._is_dir = is_dir
self._is_file = is_file
def exists(self, *, follow_symlinks=True):
return self._is_dir or self._is_file
def is_dir(self, *, follow_symlinks=True):
return self._is_dir
def is_file(self, *, follow_symlinks=True):
return self._is_file
def is_symlink(self):
return False
class DummyReadablePath(_ReadablePath, DummyJoinablePath):
"""
Simple implementation of DummyReadablePath that keeps files and
directories in memory.
"""
__slots__ = ('_info')
_files = {}
_directories = {}
parser = posixpath
def __init__(self, *segments):
super().__init__(*segments)
self._info = None
@property
def info(self):
if self._info is None:
path_str = str(self)
self._info = DummyReadablePathInfo(
is_dir=path_str.rstrip('/') in self._directories,
is_file=path_str in self._files)
return self._info
def __open_rb__(self, buffering=-1):
path = str(self)
if path in self._directories:
raise IsADirectoryError(errno.EISDIR, "Is a directory", path)
elif path not in self._files:
raise FileNotFoundError(errno.ENOENT, "File not found", path)
return io.BytesIO(self._files[path])
def iterdir(self):
path = str(self).rstrip('/')
if path in self._files:
raise NotADirectoryError(errno.ENOTDIR, "Not a directory", path)
elif path in self._directories:
return iter([self / name for name in self._directories[path]])
else:
raise FileNotFoundError(errno.ENOENT, "File not found", path)
def readlink(self):
raise NotImplementedError
class DummyWritablePath(_WritablePath, DummyJoinablePath):
__slots__ = ()
def __open_wb__(self, buffering=-1):
path = str(self)
if path in self._directories:
raise IsADirectoryError(errno.EISDIR, "Is a directory", path)
parent, name = posixpath.split(path)
if parent not in self._directories:
raise FileNotFoundError(errno.ENOENT, "File not found", parent)
self._files[path] = b''
self._directories[parent].add(name)
return DummyWritablePathIO(self._files, path)
def mkdir(self):
path = str(self)
parent = str(self.parent)
if path in self._directories:
raise FileExistsError(errno.EEXIST, "File exists", path)
try:
if self.name:
self._directories[parent].add(self.name)
self._directories[path] = set()
except KeyError:
raise FileNotFoundError(errno.ENOENT, "File not found", parent) from None
def symlink_to(self, target, target_is_directory=False):
raise NotImplementedError
class ReadablePathTest(JoinablePathTest):
"""Tests for ReadablePathTest methods that use stat(), open() and iterdir()."""
cls = DummyReadablePath
can_symlink = False
# (self.base)
# |
# |-- brokenLink -> non-existing
# |-- dirA
# | `-- linkC -> ../dirB
# |-- dirB
# | |-- fileB
# | `-- linkD -> ../dirB
# |-- dirC
# | |-- dirD
# | | `-- fileD
# | `-- fileC
# | `-- novel.txt
# |-- dirE # No permissions
# |-- fileA
# |-- linkA -> fileA
# |-- linkB -> dirB
# `-- brokenLinkLoop -> brokenLinkLoop
#
def setUp(self):
super().setUp()
self.createTestHierarchy()
def createTestHierarchy(self):
cls = self.cls
cls._files = {
f'{self.base}/fileA': b'this is file A\n',
f'{self.base}/dirB/fileB': b'this is file B\n',
f'{self.base}/dirC/fileC': b'this is file C\n',
f'{self.base}/dirC/dirD/fileD': b'this is file D\n',
f'{self.base}/dirC/novel.txt': b'this is a novel\n',
}
cls._directories = {
f'{self.base}': {'fileA', 'dirA', 'dirB', 'dirC', 'dirE'},
f'{self.base}/dirA': set(),
f'{self.base}/dirB': {'fileB'},
f'{self.base}/dirC': {'fileC', 'dirD', 'novel.txt'},
f'{self.base}/dirC/dirD': {'fileD'},
f'{self.base}/dirE': set(),
}
def tearDown(self):
cls = self.cls
cls._files.clear()
cls._directories.clear()
def tempdir(self):
path = self.cls(self.base).with_name('tmp-dirD')
path.mkdir()
return path
def assertFileNotFound(self, func, *args, **kwargs):
with self.assertRaises(FileNotFoundError) as cm:
func(*args, **kwargs)
self.assertEqual(cm.exception.errno, errno.ENOENT)
def assertEqualNormCase(self, path_a, path_b):
normcase = self.parser.normcase
self.assertEqual(normcase(path_a), normcase(path_b))
def test_is_readable(self):
p = self.cls(self.base)
self.assertIsInstance(p, _ReadablePath)
def test_magic_open(self):
p = self.cls(self.base)
with magic_open(p / 'fileA', 'r') as f:
self.assertIsInstance(f, io.TextIOBase)
self.assertEqual(f.read(), "this is file A\n")
with magic_open(p / 'fileA', 'rb') as f:
self.assertIsInstance(f, io.BufferedIOBase)
self.assertEqual(f.read().strip(), b"this is file A")
def test_iterdir(self):
P = self.cls
p = P(self.base)
it = p.iterdir()
paths = set(it)
expected = ['dirA', 'dirB', 'dirC', 'dirE', 'fileA']
if self.can_symlink:
expected += ['linkA', 'linkB', 'brokenLink', 'brokenLinkLoop']
self.assertEqual(paths, { P(self.base, q) for q in expected })
def test_iterdir_nodir(self):
# __iter__ on something that is not a directory.
p = self.cls(self.base, 'fileA')
with self.assertRaises(OSError) as cm:
p.iterdir()
# ENOENT or EINVAL under Windows, ENOTDIR otherwise
# (see issue #12802).
self.assertIn(cm.exception.errno, (errno.ENOTDIR,
errno.ENOENT, errno.EINVAL))
def test_iterdir_info(self):
p = self.cls(self.base)
for child in p.iterdir():
self.assertIsInstance(child.info, PathInfo)
self.assertTrue(child.info.exists(follow_symlinks=False))
def test_glob_common(self):
def _check(glob, expected):
self.assertEqual(set(glob), { P(self.base, q) for q in expected })
P = self.cls
p = P(self.base)
it = p.glob("fileA")
self.assertIsInstance(it, collections.abc.Iterator)
_check(it, ["fileA"])
_check(p.glob("fileB"), [])
_check(p.glob("dir*/file*"), ["dirB/fileB", "dirC/fileC"])
if not self.can_symlink:
_check(p.glob("*A"), ['dirA', 'fileA'])
else:
_check(p.glob("*A"), ['dirA', 'fileA', 'linkA'])
if not self.can_symlink:
_check(p.glob("*B/*"), ['dirB/fileB'])
else:
_check(p.glob("*B/*"), ['dirB/fileB', 'dirB/linkD',
'linkB/fileB', 'linkB/linkD'])
if not self.can_symlink:
_check(p.glob("*/fileB"), ['dirB/fileB'])
else:
_check(p.glob("*/fileB"), ['dirB/fileB', 'linkB/fileB'])
if self.can_symlink:
_check(p.glob("brokenLink"), ['brokenLink'])
if not self.can_symlink:
_check(p.glob("*/"), ["dirA/", "dirB/", "dirC/", "dirE/"])
else:
_check(p.glob("*/"), ["dirA/", "dirB/", "dirC/", "dirE/", "linkB/"])
@needs_posix
def test_glob_posix(self):
P = self.cls
p = P(self.base)
q = p / "FILEa"
given = set(p.glob("FILEa"))
expect = {q} if q.info.exists() else set()
self.assertEqual(given, expect)
self.assertEqual(set(p.glob("FILEa*")), set())
@needs_windows
def test_glob_windows(self):
P = self.cls
p = P(self.base)
self.assertEqual(set(p.glob("FILEa")), { P(self.base, "fileA") })
self.assertEqual(set(p.glob("*a\\")), { P(self.base, "dirA/") })
self.assertEqual(set(p.glob("F*a")), { P(self.base, "fileA") })
def test_glob_empty_pattern(self):
P = self.cls
p = P(self.base)
self.assertEqual(list(p.glob("")), [p.joinpath("")])
def test_info_exists(self):
p = self.cls(self.base)
self.assertTrue(p.info.exists())
self.assertTrue((p / 'dirA').info.exists())
self.assertTrue((p / 'dirA').info.exists(follow_symlinks=False))
self.assertTrue((p / 'fileA').info.exists())
self.assertTrue((p / 'fileA').info.exists(follow_symlinks=False))
self.assertFalse((p / 'non-existing').info.exists())
self.assertFalse((p / 'non-existing').info.exists(follow_symlinks=False))
if self.can_symlink:
self.assertTrue((p / 'linkA').info.exists())
self.assertTrue((p / 'linkA').info.exists(follow_symlinks=False))
self.assertTrue((p / 'linkB').info.exists())
self.assertTrue((p / 'linkB').info.exists(follow_symlinks=True))
self.assertFalse((p / 'brokenLink').info.exists())
self.assertTrue((p / 'brokenLink').info.exists(follow_symlinks=False))
self.assertFalse((p / 'brokenLinkLoop').info.exists())
self.assertTrue((p / 'brokenLinkLoop').info.exists(follow_symlinks=False))
self.assertFalse((p / 'fileA\udfff').info.exists())
self.assertFalse((p / 'fileA\udfff').info.exists(follow_symlinks=False))
self.assertFalse((p / 'fileA\x00').info.exists())
self.assertFalse((p / 'fileA\x00').info.exists(follow_symlinks=False))
def test_info_exists_caching(self):
p = self.cls(self.base)
q = p / 'myfile'
self.assertFalse(q.info.exists())
self.assertFalse(q.info.exists(follow_symlinks=False))
if isinstance(self.cls, _WritablePath):
q.write_text('hullo')
self.assertFalse(q.info.exists())
self.assertFalse(q.info.exists(follow_symlinks=False))
def test_info_is_dir(self):
p = self.cls(self.base)
self.assertTrue((p / 'dirA').info.is_dir())
self.assertTrue((p / 'dirA').info.is_dir(follow_symlinks=False))
self.assertFalse((p / 'fileA').info.is_dir())
self.assertFalse((p / 'fileA').info.is_dir(follow_symlinks=False))
self.assertFalse((p / 'non-existing').info.is_dir())
self.assertFalse((p / 'non-existing').info.is_dir(follow_symlinks=False))
if self.can_symlink:
self.assertFalse((p / 'linkA').info.is_dir())
self.assertFalse((p / 'linkA').info.is_dir(follow_symlinks=False))
self.assertTrue((p / 'linkB').info.is_dir())
self.assertFalse((p / 'linkB').info.is_dir(follow_symlinks=False))
self.assertFalse((p / 'brokenLink').info.is_dir())
self.assertFalse((p / 'brokenLink').info.is_dir(follow_symlinks=False))
self.assertFalse((p / 'brokenLinkLoop').info.is_dir())
self.assertFalse((p / 'brokenLinkLoop').info.is_dir(follow_symlinks=False))
self.assertFalse((p / 'dirA\udfff').info.is_dir())
self.assertFalse((p / 'dirA\udfff').info.is_dir(follow_symlinks=False))
self.assertFalse((p / 'dirA\x00').info.is_dir())
self.assertFalse((p / 'dirA\x00').info.is_dir(follow_symlinks=False))
def test_info_is_dir_caching(self):
p = self.cls(self.base)
q = p / 'mydir'
self.assertFalse(q.info.is_dir())
self.assertFalse(q.info.is_dir(follow_symlinks=False))
if isinstance(self.cls, _WritablePath):
q.mkdir()
self.assertFalse(q.info.is_dir())
self.assertFalse(q.info.is_dir(follow_symlinks=False))
def test_info_is_file(self):
p = self.cls(self.base)
self.assertTrue((p / 'fileA').info.is_file())
self.assertTrue((p / 'fileA').info.is_file(follow_symlinks=False))
self.assertFalse((p / 'dirA').info.is_file())
self.assertFalse((p / 'dirA').info.is_file(follow_symlinks=False))
self.assertFalse((p / 'non-existing').info.is_file())
self.assertFalse((p / 'non-existing').info.is_file(follow_symlinks=False))
if self.can_symlink:
self.assertTrue((p / 'linkA').info.is_file())
self.assertFalse((p / 'linkA').info.is_file(follow_symlinks=False))
self.assertFalse((p / 'linkB').info.is_file())
self.assertFalse((p / 'linkB').info.is_file(follow_symlinks=False))
self.assertFalse((p / 'brokenLink').info.is_file())
self.assertFalse((p / 'brokenLink').info.is_file(follow_symlinks=False))
self.assertFalse((p / 'brokenLinkLoop').info.is_file())
self.assertFalse((p / 'brokenLinkLoop').info.is_file(follow_symlinks=False))
self.assertFalse((p / 'fileA\udfff').info.is_file())
self.assertFalse((p / 'fileA\udfff').info.is_file(follow_symlinks=False))
self.assertFalse((p / 'fileA\x00').info.is_file())
self.assertFalse((p / 'fileA\x00').info.is_file(follow_symlinks=False))
def test_info_is_file_caching(self):
p = self.cls(self.base)
q = p / 'myfile'
self.assertFalse(q.info.is_file())
self.assertFalse(q.info.is_file(follow_symlinks=False))
if isinstance(self.cls, _WritablePath):
q.write_text('hullo')
self.assertFalse(q.info.is_file())
self.assertFalse(q.info.is_file(follow_symlinks=False))
def test_info_is_symlink(self):
p = self.cls(self.base)
self.assertFalse((p / 'fileA').info.is_symlink())
self.assertFalse((p / 'dirA').info.is_symlink())
self.assertFalse((p / 'non-existing').info.is_symlink())
if self.can_symlink:
self.assertTrue((p / 'linkA').info.is_symlink())
self.assertTrue((p / 'linkB').info.is_symlink())
self.assertTrue((p / 'brokenLink').info.is_symlink())
self.assertFalse((p / 'linkA\udfff').info.is_symlink())
self.assertFalse((p / 'linkA\x00').info.is_symlink())
self.assertTrue((p / 'brokenLinkLoop').info.is_symlink())
self.assertFalse((p / 'fileA\udfff').info.is_symlink())
self.assertFalse((p / 'fileA\x00').info.is_symlink())
class WritablePathTest(JoinablePathTest):
cls = DummyWritablePath
def test_is_writable(self):
p = self.cls(self.base)
self.assertIsInstance(p, _WritablePath)
class DummyRWPath(DummyWritablePath, DummyReadablePath):
__slots__ = ()
class RWPathTest(WritablePathTest, ReadablePathTest):
cls = DummyRWPath
can_symlink = False
def test_read_write_bytes(self):
p = self.cls(self.base)
(p / 'fileA').write_bytes(b'abcdefg')
self.assertEqual((p / 'fileA').read_bytes(), b'abcdefg')
# Check that trying to write str does not truncate the file.
self.assertRaises(TypeError, (p / 'fileA').write_bytes, 'somestr')
self.assertEqual((p / 'fileA').read_bytes(), b'abcdefg')
def test_read_write_text(self):
p = self.cls(self.base)
(p / 'fileA').write_text('äbcdefg', encoding='latin-1')
self.assertEqual((p / 'fileA').read_text(
encoding='utf-8', errors='ignore'), 'bcdefg')
# Check that trying to write bytes does not truncate the file.
self.assertRaises(TypeError, (p / 'fileA').write_text, b'somebytes')
self.assertEqual((p / 'fileA').read_text(encoding='latin-1'), 'äbcdefg')
def test_read_text_with_newlines(self):
p = self.cls(self.base)
# Check that `\n` character change nothing
(p / 'fileA').write_bytes(b'abcde\r\nfghlk\n\rmnopq')
self.assertEqual((p / 'fileA').read_text(newline='\n'),
'abcde\r\nfghlk\n\rmnopq')
# Check that `\r` character replaces `\n`
(p / 'fileA').write_bytes(b'abcde\r\nfghlk\n\rmnopq')
self.assertEqual((p / 'fileA').read_text(newline='\r'),
'abcde\r\nfghlk\n\rmnopq')
# Check that `\r\n` character replaces `\n`
(p / 'fileA').write_bytes(b'abcde\r\nfghlk\n\rmnopq')
self.assertEqual((p / 'fileA').read_text(newline='\r\n'),
'abcde\r\nfghlk\n\rmnopq')
def test_write_text_with_newlines(self):
p = self.cls(self.base)
# Check that `\n` character change nothing
(p / 'fileA').write_text('abcde\r\nfghlk\n\rmnopq', newline='\n')
self.assertEqual((p / 'fileA').read_bytes(),
b'abcde\r\nfghlk\n\rmnopq')
# Check that `\r` character replaces `\n`
(p / 'fileA').write_text('abcde\r\nfghlk\n\rmnopq', newline='\r')
self.assertEqual((p / 'fileA').read_bytes(),
b'abcde\r\rfghlk\r\rmnopq')
# Check that `\r\n` character replaces `\n`
(p / 'fileA').write_text('abcde\r\nfghlk\n\rmnopq', newline='\r\n')
self.assertEqual((p / 'fileA').read_bytes(),
b'abcde\r\r\nfghlk\r\n\rmnopq')
# Check that no argument passed will change `\n` to `os.linesep`
os_linesep_byte = bytes(os.linesep, encoding='ascii')
(p / 'fileA').write_text('abcde\nfghlk\n\rmnopq')
self.assertEqual((p / 'fileA').read_bytes(),
b'abcde' + os_linesep_byte + b'fghlk' + os_linesep_byte + b'\rmnopq')
def test_copy_file(self):
base = self.cls(self.base)
source = base / 'fileA'
target = base / 'copyA'
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(result.info.exists())
self.assertEqual(source.read_text(), result.read_text())
def test_copy_file_to_existing_file(self):
base = self.cls(self.base)
source = base / 'fileA'
target = base / 'dirB' / 'fileB'
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(result.info.exists())
self.assertEqual(source.read_text(), result.read_text())
def test_copy_file_to_existing_directory(self):
base = self.cls(self.base)
source = base / 'fileA'
target = base / 'dirA'
self.assertRaises(OSError, source.copy, target)
def test_copy_file_empty(self):
base = self.cls(self.base)
source = base / 'empty'
target = base / 'copyA'
source.write_bytes(b'')
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(result.info.exists())
self.assertEqual(result.read_bytes(), b'')
def test_copy_file_to_itself(self):
base = self.cls(self.base)
source = base / 'empty'
source.write_bytes(b'')
self.assertRaises(OSError, source.copy, source)
self.assertRaises(OSError, source.copy, source, follow_symlinks=False)
def test_copy_dir_simple(self):
base = self.cls(self.base)
source = base / 'dirC'
target = base / 'copyC'
result = source.copy(target)
self.assertEqual(result, target)
self.assertTrue(result.info.is_dir())
self.assertTrue(result.joinpath('dirD').info.is_dir())
self.assertTrue(result.joinpath('dirD', 'fileD').info.is_file())
self.assertEqual(result.joinpath('dirD', 'fileD').read_text(),
"this is file D\n")
self.assertTrue(result.joinpath('fileC').info.is_file())
self.assertTrue(result.joinpath('fileC').read_text(),
"this is file C\n")
def test_copy_dir_complex(self, follow_symlinks=True):
def ordered_walk(path):
for dirpath, dirnames, filenames in path.walk(follow_symlinks=follow_symlinks):
dirnames.sort()
filenames.sort()
yield dirpath, dirnames, filenames
base = self.cls(self.base)
source = base / 'dirC'
if self.can_symlink:
# Add some symlinks
source.joinpath('linkC').symlink_to('fileC')
source.joinpath('linkD').symlink_to('dirD', target_is_directory=True)
# Perform the copy
target = base / 'copyC'
result = source.copy(target, follow_symlinks=follow_symlinks)
self.assertEqual(result, target)
# Compare the source and target trees
source_walk = ordered_walk(source)
target_walk = ordered_walk(result)
for source_item, target_item in zip(source_walk, target_walk, strict=True):
self.assertEqual(source_item[0].parts[len(source.parts):],
target_item[0].parts[len(target.parts):]) # dirpath
self.assertEqual(source_item[1], target_item[1]) # dirnames
self.assertEqual(source_item[2], target_item[2]) # filenames
# Compare files and symlinks
for filename in source_item[2]:
source_file = source_item[0].joinpath(filename)
target_file = target_item[0].joinpath(filename)
if follow_symlinks or not source_file.info.is_symlink():
# Regular file.
self.assertEqual(source_file.read_bytes(), target_file.read_bytes())
elif source_file.info.is_dir():
# Symlink to directory.
self.assertTrue(target_file.info.is_dir())
self.assertEqual(source_file.readlink(), target_file.readlink())
else:
# Symlink to file.
self.assertEqual(source_file.read_bytes(), target_file.read_bytes())
self.assertEqual(source_file.readlink(), target_file.readlink())
def test_copy_dir_complex_follow_symlinks_false(self):
self.test_copy_dir_complex(follow_symlinks=False)
def test_copy_dir_to_existing_directory(self):
base = self.cls(self.base)
source = base / 'dirC'
target = base / 'copyC'
target.mkdir()
target.joinpath('dirD').mkdir()