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f9dc2ad890
Test that they do not keep too many file descriptors open for the host OS in a reasonable test scenario. See [bpo-37935](https://bugs.python.org/issue37935).
334 lines
13 KiB
Python
334 lines
13 KiB
Python
import glob
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import os
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import shutil
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import sys
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import unittest
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from test.support import (TESTFN, skip_unless_symlink,
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can_symlink, create_empty_file, change_cwd)
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class GlobTests(unittest.TestCase):
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def norm(self, *parts):
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return os.path.normpath(os.path.join(self.tempdir, *parts))
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def joins(self, *tuples):
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return [os.path.join(self.tempdir, *parts) for parts in tuples]
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def mktemp(self, *parts):
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filename = self.norm(*parts)
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base, file = os.path.split(filename)
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if not os.path.exists(base):
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os.makedirs(base)
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create_empty_file(filename)
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def setUp(self):
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self.tempdir = TESTFN + "_dir"
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self.mktemp('a', 'D')
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self.mktemp('aab', 'F')
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self.mktemp('.aa', 'G')
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self.mktemp('.bb', 'H')
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self.mktemp('aaa', 'zzzF')
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self.mktemp('ZZZ')
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self.mktemp('EF')
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self.mktemp('a', 'bcd', 'EF')
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self.mktemp('a', 'bcd', 'efg', 'ha')
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if can_symlink():
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os.symlink(self.norm('broken'), self.norm('sym1'))
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os.symlink('broken', self.norm('sym2'))
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os.symlink(os.path.join('a', 'bcd'), self.norm('sym3'))
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def tearDown(self):
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shutil.rmtree(self.tempdir)
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def glob(self, *parts, **kwargs):
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if len(parts) == 1:
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pattern = parts[0]
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else:
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pattern = os.path.join(*parts)
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p = os.path.join(self.tempdir, pattern)
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res = glob.glob(p, **kwargs)
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self.assertCountEqual(glob.iglob(p, **kwargs), res)
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bres = [os.fsencode(x) for x in res]
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self.assertCountEqual(glob.glob(os.fsencode(p), **kwargs), bres)
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self.assertCountEqual(glob.iglob(os.fsencode(p), **kwargs), bres)
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return res
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def assertSequencesEqual_noorder(self, l1, l2):
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l1 = list(l1)
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l2 = list(l2)
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self.assertEqual(set(l1), set(l2))
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self.assertEqual(sorted(l1), sorted(l2))
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def test_glob_literal(self):
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eq = self.assertSequencesEqual_noorder
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eq(self.glob('a'), [self.norm('a')])
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eq(self.glob('a', 'D'), [self.norm('a', 'D')])
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eq(self.glob('aab'), [self.norm('aab')])
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eq(self.glob('zymurgy'), [])
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res = glob.glob('*')
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self.assertEqual({type(r) for r in res}, {str})
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res = glob.glob(os.path.join(os.curdir, '*'))
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self.assertEqual({type(r) for r in res}, {str})
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res = glob.glob(b'*')
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self.assertEqual({type(r) for r in res}, {bytes})
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res = glob.glob(os.path.join(os.fsencode(os.curdir), b'*'))
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self.assertEqual({type(r) for r in res}, {bytes})
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def test_glob_one_directory(self):
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eq = self.assertSequencesEqual_noorder
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eq(self.glob('a*'), map(self.norm, ['a', 'aab', 'aaa']))
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eq(self.glob('*a'), map(self.norm, ['a', 'aaa']))
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eq(self.glob('.*'), map(self.norm, ['.aa', '.bb']))
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eq(self.glob('?aa'), map(self.norm, ['aaa']))
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eq(self.glob('aa?'), map(self.norm, ['aaa', 'aab']))
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eq(self.glob('aa[ab]'), map(self.norm, ['aaa', 'aab']))
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eq(self.glob('*q'), [])
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def test_glob_nested_directory(self):
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eq = self.assertSequencesEqual_noorder
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if os.path.normcase("abCD") == "abCD":
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# case-sensitive filesystem
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eq(self.glob('a', 'bcd', 'E*'), [self.norm('a', 'bcd', 'EF')])
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else:
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# case insensitive filesystem
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eq(self.glob('a', 'bcd', 'E*'), [self.norm('a', 'bcd', 'EF'),
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self.norm('a', 'bcd', 'efg')])
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eq(self.glob('a', 'bcd', '*g'), [self.norm('a', 'bcd', 'efg')])
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def test_glob_directory_names(self):
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eq = self.assertSequencesEqual_noorder
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eq(self.glob('*', 'D'), [self.norm('a', 'D')])
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eq(self.glob('*', '*a'), [])
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eq(self.glob('a', '*', '*', '*a'),
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[self.norm('a', 'bcd', 'efg', 'ha')])
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eq(self.glob('?a?', '*F'), [self.norm('aaa', 'zzzF'),
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self.norm('aab', 'F')])
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def test_glob_directory_with_trailing_slash(self):
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# Patterns ending with a slash shouldn't match non-dirs
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res = glob.glob(self.norm('Z*Z') + os.sep)
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self.assertEqual(res, [])
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res = glob.glob(self.norm('ZZZ') + os.sep)
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self.assertEqual(res, [])
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# When there is a wildcard pattern which ends with os.sep, glob()
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# doesn't blow up.
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res = glob.glob(self.norm('aa*') + os.sep)
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self.assertEqual(len(res), 2)
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# either of these results is reasonable
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self.assertIn(set(res), [
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{self.norm('aaa'), self.norm('aab')},
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{self.norm('aaa') + os.sep, self.norm('aab') + os.sep},
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])
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def test_glob_bytes_directory_with_trailing_slash(self):
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# Same as test_glob_directory_with_trailing_slash, but with a
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# bytes argument.
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res = glob.glob(os.fsencode(self.norm('Z*Z') + os.sep))
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self.assertEqual(res, [])
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res = glob.glob(os.fsencode(self.norm('ZZZ') + os.sep))
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self.assertEqual(res, [])
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res = glob.glob(os.fsencode(self.norm('aa*') + os.sep))
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self.assertEqual(len(res), 2)
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# either of these results is reasonable
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self.assertIn(set(res), [
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{os.fsencode(self.norm('aaa')),
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os.fsencode(self.norm('aab'))},
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{os.fsencode(self.norm('aaa') + os.sep),
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os.fsencode(self.norm('aab') + os.sep)},
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])
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@skip_unless_symlink
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def test_glob_symlinks(self):
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eq = self.assertSequencesEqual_noorder
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eq(self.glob('sym3'), [self.norm('sym3')])
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eq(self.glob('sym3', '*'), [self.norm('sym3', 'EF'),
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self.norm('sym3', 'efg')])
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self.assertIn(self.glob('sym3' + os.sep),
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[[self.norm('sym3')], [self.norm('sym3') + os.sep]])
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eq(self.glob('*', '*F'),
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[self.norm('aaa', 'zzzF'),
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self.norm('aab', 'F'), self.norm('sym3', 'EF')])
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@skip_unless_symlink
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def test_glob_broken_symlinks(self):
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eq = self.assertSequencesEqual_noorder
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eq(self.glob('sym*'), [self.norm('sym1'), self.norm('sym2'),
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self.norm('sym3')])
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eq(self.glob('sym1'), [self.norm('sym1')])
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eq(self.glob('sym2'), [self.norm('sym2')])
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@unittest.skipUnless(sys.platform == "win32", "Win32 specific test")
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def test_glob_magic_in_drive(self):
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eq = self.assertSequencesEqual_noorder
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eq(glob.glob('*:'), [])
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eq(glob.glob(b'*:'), [])
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eq(glob.glob('?:'), [])
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eq(glob.glob(b'?:'), [])
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eq(glob.glob('\\\\?\\c:\\'), ['\\\\?\\c:\\'])
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eq(glob.glob(b'\\\\?\\c:\\'), [b'\\\\?\\c:\\'])
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eq(glob.glob('\\\\*\\*\\'), [])
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eq(glob.glob(b'\\\\*\\*\\'), [])
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def check_escape(self, arg, expected):
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self.assertEqual(glob.escape(arg), expected)
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self.assertEqual(glob.escape(os.fsencode(arg)), os.fsencode(expected))
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def test_escape(self):
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check = self.check_escape
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check('abc', 'abc')
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check('[', '[[]')
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check('?', '[?]')
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check('*', '[*]')
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check('[[_/*?*/_]]', '[[][[]_/[*][?][*]/_]]')
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check('/[[_/*?*/_]]/', '/[[][[]_/[*][?][*]/_]]/')
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@unittest.skipUnless(sys.platform == "win32", "Win32 specific test")
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def test_escape_windows(self):
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check = self.check_escape
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check('?:?', '?:[?]')
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check('*:*', '*:[*]')
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check(r'\\?\c:\?', r'\\?\c:\[?]')
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check(r'\\*\*\*', r'\\*\*\[*]')
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check('//?/c:/?', '//?/c:/[?]')
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check('//*/*/*', '//*/*/[*]')
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def rglob(self, *parts, **kwargs):
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return self.glob(*parts, recursive=True, **kwargs)
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def test_recursive_glob(self):
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eq = self.assertSequencesEqual_noorder
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full = [('EF',), ('ZZZ',),
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('a',), ('a', 'D'),
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('a', 'bcd'),
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('a', 'bcd', 'EF'),
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('a', 'bcd', 'efg'),
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('a', 'bcd', 'efg', 'ha'),
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('aaa',), ('aaa', 'zzzF'),
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('aab',), ('aab', 'F'),
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]
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if can_symlink():
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full += [('sym1',), ('sym2',),
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('sym3',),
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('sym3', 'EF'),
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('sym3', 'efg'),
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('sym3', 'efg', 'ha'),
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]
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eq(self.rglob('**'), self.joins(('',), *full))
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eq(self.rglob(os.curdir, '**'),
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self.joins((os.curdir, ''), *((os.curdir,) + i for i in full)))
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dirs = [('a', ''), ('a', 'bcd', ''), ('a', 'bcd', 'efg', ''),
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('aaa', ''), ('aab', '')]
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if can_symlink():
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dirs += [('sym3', ''), ('sym3', 'efg', '')]
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eq(self.rglob('**', ''), self.joins(('',), *dirs))
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eq(self.rglob('a', '**'), self.joins(
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('a', ''), ('a', 'D'), ('a', 'bcd'), ('a', 'bcd', 'EF'),
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('a', 'bcd', 'efg'), ('a', 'bcd', 'efg', 'ha')))
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eq(self.rglob('a**'), self.joins(('a',), ('aaa',), ('aab',)))
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expect = [('a', 'bcd', 'EF'), ('EF',)]
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if can_symlink():
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expect += [('sym3', 'EF')]
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eq(self.rglob('**', 'EF'), self.joins(*expect))
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expect = [('a', 'bcd', 'EF'), ('aaa', 'zzzF'), ('aab', 'F'), ('EF',)]
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if can_symlink():
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expect += [('sym3', 'EF')]
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eq(self.rglob('**', '*F'), self.joins(*expect))
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eq(self.rglob('**', '*F', ''), [])
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eq(self.rglob('**', 'bcd', '*'), self.joins(
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('a', 'bcd', 'EF'), ('a', 'bcd', 'efg')))
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eq(self.rglob('a', '**', 'bcd'), self.joins(('a', 'bcd')))
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with change_cwd(self.tempdir):
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join = os.path.join
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eq(glob.glob('**', recursive=True), [join(*i) for i in full])
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eq(glob.glob(join('**', ''), recursive=True),
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[join(*i) for i in dirs])
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eq(glob.glob(join('**', '*'), recursive=True),
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[join(*i) for i in full])
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eq(glob.glob(join(os.curdir, '**'), recursive=True),
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[join(os.curdir, '')] + [join(os.curdir, *i) for i in full])
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eq(glob.glob(join(os.curdir, '**', ''), recursive=True),
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[join(os.curdir, '')] + [join(os.curdir, *i) for i in dirs])
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eq(glob.glob(join(os.curdir, '**', '*'), recursive=True),
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[join(os.curdir, *i) for i in full])
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eq(glob.glob(join('**','zz*F'), recursive=True),
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[join('aaa', 'zzzF')])
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eq(glob.glob('**zz*F', recursive=True), [])
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expect = [join('a', 'bcd', 'EF'), 'EF']
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if can_symlink():
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expect += [join('sym3', 'EF')]
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eq(glob.glob(join('**', 'EF'), recursive=True), expect)
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def test_glob_many_open_files(self):
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depth = 30
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base = os.path.join(self.tempdir, 'deep')
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p = os.path.join(base, *(['d']*depth))
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os.makedirs(p)
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pattern = os.path.join(base, *(['*']*depth))
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iters = [glob.iglob(pattern, recursive=True) for j in range(100)]
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for it in iters:
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self.assertEqual(next(it), p)
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pattern = os.path.join(base, '**', 'd')
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iters = [glob.iglob(pattern, recursive=True) for j in range(100)]
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p = base
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for i in range(depth):
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p = os.path.join(p, 'd')
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for it in iters:
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self.assertEqual(next(it), p)
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@skip_unless_symlink
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class SymlinkLoopGlobTests(unittest.TestCase):
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def test_selflink(self):
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tempdir = TESTFN + "_dir"
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os.makedirs(tempdir)
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self.addCleanup(shutil.rmtree, tempdir)
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with change_cwd(tempdir):
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os.makedirs('dir')
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create_empty_file(os.path.join('dir', 'file'))
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os.symlink(os.curdir, os.path.join('dir', 'link'))
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results = glob.glob('**', recursive=True)
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self.assertEqual(len(results), len(set(results)))
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results = set(results)
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depth = 0
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while results:
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path = os.path.join(*(['dir'] + ['link'] * depth))
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self.assertIn(path, results)
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results.remove(path)
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if not results:
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break
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path = os.path.join(path, 'file')
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self.assertIn(path, results)
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results.remove(path)
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depth += 1
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results = glob.glob(os.path.join('**', 'file'), recursive=True)
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self.assertEqual(len(results), len(set(results)))
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results = set(results)
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depth = 0
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while results:
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path = os.path.join(*(['dir'] + ['link'] * depth + ['file']))
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self.assertIn(path, results)
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results.remove(path)
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depth += 1
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results = glob.glob(os.path.join('**', ''), recursive=True)
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self.assertEqual(len(results), len(set(results)))
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results = set(results)
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depth = 0
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while results:
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path = os.path.join(*(['dir'] + ['link'] * depth + ['']))
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self.assertIn(path, results)
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results.remove(path)
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depth += 1
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if __name__ == "__main__":
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unittest.main()
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