Mercurial > cpython-lru_cache-weakref
diff Lib/test/test_os.py @ 44785:b520d33bee06 legacy-trunk
#1663329: add os.closerange() to close a range of fds,
ignoring errors, and use this in subprocess to speed up
subprocess creation in close_fds mode. Patch by Mike Klaas.
| author | Georg Brandl <georg@python.org> |
|---|---|
| date | Sat, 19 Jan 2008 20:22:13 +0000 |
| parents | 68f8b2393243 |
| children | 61d22701a5e5 |
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--- a/Lib/test/test_os.py Sat Jan 19 20:12:04 2008 +0000 +++ b/Lib/test/test_os.py Sat Jan 19 20:22:13 2008 +0000 @@ -23,6 +23,12 @@ os.close(f) self.assert_(os.access(test_support.TESTFN, os.W_OK)) + def test_closerange(self): + f = os.open(test_support.TESTFN, os.O_CREAT|os.O_RDWR) + # close a fd that is open, and one that isn't + os.closerange(f, f+2) + self.assertRaises(OSError, os.write, f, "a") + class TemporaryFileTests(unittest.TestCase): def setUp(self):