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bpo-34195: Fix case-sensitive comparison in test_nt_helpers (GH-8448)

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* Fix case-sensitive comparison

test_nt_helpers assumed that two versions of a Windows path could be compared case-sensitively. This is not the case, and the difference can be triggered (apparently) by running the test on a path somewhere below a Junction.
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Tim Golden 2018-07-25 14:36:54 +01:00 • committed by GitHub
parent ee98e7bbde
commit ff64add8d4
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1 changed files with 11 additions and 5 deletions
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16
Lib/test/test_ntpath.py
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@ -422,16 +422,22 @@ class TestNtpath(unittest.TestCase):
self.assertTrue(ntpath.ismount(b"\\\\localhost\\c$"))
self.assertTrue(ntpath.ismount(b"\\\\localhost\\c$\\"))
def assertEqualCI(self, s1, s2):
"""Assert that two strings are equal ignoring case differences."""
self.assertEqual(s1.lower(), s2.lower())
@unittest.skipUnless(nt, "OS helpers require 'nt' module")
def test_nt_helpers(self):
# Trivial validation that the helpers do not break, and support both
# unicode and bytes (UTF-8) paths
drive, path = ntpath.splitdrive(sys.executable)
drive = drive.rstrip(ntpath.sep) + ntpath.sep
self.assertEqual(drive, nt._getvolumepathname(sys.executable))
self.assertEqual(drive.encode(),
nt._getvolumepathname(sys.executable.encode()))
executable = nt._getfinalpathname(sys.executable)
for path in executable, os.fsencode(executable):
volume_path = nt._getvolumepathname(path)
path_drive = ntpath.splitdrive(path)[0]
volume_path_drive = ntpath.splitdrive(volume_path)[0]
self.assertEqualCI(path_drive, volume_path_drive)
cap, free = nt._getdiskusage(sys.exec_prefix)
self.assertGreater(cap, 0)