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Issue #12451: Add support.create_empty_file()

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We don't need to create a temporary buffered binary or text file object just to
create an empty file.

Replace also os.fdopen(handle).close() by os.close(handle).
This commit is contained in:
Victor Stinner 2011-06-30 23:25:47 +02:00
parent 61600cb0c3
commit bf816223df
17 changed files with 50 additions and 53 deletions
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8
Lib/test/test_posix.py
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@ -410,7 +410,7 @@ class PosixTester(unittest.TestCase):
self.assertRaises(OSError, posix.chown, support.TESTFN, -1, -1)
# re-create the file
open(support.TESTFN, 'w').close()
support.create_empty_file(support.TESTFN)
self._test_all_chown_common(posix.chown, support.TESTFN)
@unittest.skipUnless(hasattr(posix, 'fchown'), "test needs os.fchown()")
@ -661,7 +661,7 @@ class PosixTester(unittest.TestCase):
@unittest.skipUnless(hasattr(posix, 'fchownat'), "test needs posix.fchownat()")
def test_fchownat(self):
support.unlink(support.TESTFN)
open(support.TESTFN, 'w').close()
support.create_empty_file(support.TESTFN)
f = posix.open(posix.getcwd(), posix.O_RDONLY)
try:
@ -766,7 +766,7 @@ class PosixTester(unittest.TestCase):
@unittest.skipUnless(hasattr(posix, 'renameat'), "test needs posix.renameat()")
def test_renameat(self):
support.unlink(support.TESTFN)
open(support.TESTFN + 'ren', 'w').close()
support.create_empty_file(support.TESTFN + 'ren')
f = posix.open(posix.getcwd(), posix.O_RDONLY)
try:
posix.renameat(f, support.TESTFN + 'ren', f, support.TESTFN)
@ -791,7 +791,7 @@ class PosixTester(unittest.TestCase):
@unittest.skipUnless(hasattr(posix, 'unlinkat'), "test needs posix.unlinkat()")
def test_unlinkat(self):
f = posix.open(posix.getcwd(), posix.O_RDONLY)
open(support.TESTFN + 'del', 'w').close()
support.create_empty_file(support.TESTFN + 'del')
posix.stat(support.TESTFN + 'del') # should not throw exception
try:
posix.unlinkat(f, support.TESTFN + 'del')