diff options
Diffstat (limited to 'Lib/test/test_mmap.py')
| -rw-r--r-- | Lib/test/test_mmap.py | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py index c7b8d60..08b0714 100644 --- a/Lib/test/test_mmap.py +++ b/Lib/test/test_mmap.py @@ -325,13 +325,14 @@ class MmapTests(unittest.TestCase): # map length with an offset doesn't cause a segfault. if not hasattr(os, "stat"): self.skipTest("needs os.stat") - with open(TESTFN, "wb+") as f: - f.write(49152 * b'm') # Arbitrary character + # NOTE: allocation granularity is currently 65536 under Win64, + # and therefore the minimum offset alignment. + with open(TESTFN, "wb") as f: + f.write((65536 * 2) * b'm') # Arbitrary character with open(TESTFN, "rb") as f: - mf = mmap.mmap(f.fileno(), 0, offset=40960, access=mmap.ACCESS_READ) - self.assertRaises(IndexError, mf.__getitem__, 45000) - mf.close() + with mmap.mmap(f.fileno(), 0, offset=65536, access=mmap.ACCESS_READ) as mf: + self.assertRaises(IndexError, mf.__getitem__, 80000) def test_move(self): # make move works everywhere (64-bit format problem earlier) |