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#8046: add context manager protocol support to mmap objects. Also add closed property.

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This commit is contained in:
Georg Brandl 2010-08-01 14:50:00 +00:00
parent 120d633871
commit 0bccc185b4
4 changed files with 73 additions and 4 deletions
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14
Lib/test/test_mmap.py
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@ -586,6 +586,20 @@ class MmapTests(unittest.TestCase):
pass
m.close()
def test_context_manager(self):
with mmap.mmap(-1, 10) as m:
self.assertFalse(m.closed)
self.assertTrue(m.closed)
def test_context_manager_exception(self):
# Test that the IOError gets passed through
with self.assertRaises(Exception) as exc:
with mmap.mmap(-1, 10) as m:
raise IOError
self.assertIsInstance(exc.exception, IOError,
"wrong exception raised in context manager")
self.assertTrue(m.closed, "context manager failed")
def test_main():
run_unittest(MmapTests)