diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_mmap.py | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Lib/test/test_mmap.py b/Lib/test/test_mmap.py index 59b2374..7398227 100644 --- a/Lib/test/test_mmap.py +++ b/Lib/test/test_mmap.py @@ -504,6 +504,34 @@ class MmapTests(unittest.TestCase): m.seek(8) self.assertRaises(ValueError, m.write, b"bar") + if os.name == 'nt': + def test_tagname(self): + data1 = b"0123456789" + data2 = b"abcdefghij" + assert len(data1) == len(data2) + # Test same tag + m1 = mmap.mmap(-1, len(data1), tagname="foo") + m1[:] = data1 + m2 = mmap.mmap(-1, len(data2), tagname="foo") + m2[:] = data2 + self.assertEquals(m1[:], data2) + self.assertEquals(m2[:], data2) + # Test differnt tag + m1 = mmap.mmap(-1, len(data1), tagname="foo") + m1[:] = data1 + m2 = mmap.mmap(-1, len(data2), tagname="boo") + m2[:] = data2 + self.assertEquals(m1[:], data1) + self.assertEquals(m2[:], data2) + + def test_tagname_crash(self): + # Should not crash (Issue 1733986) + m = mmap.mmap(-1, 1000, tagname="foo") + try: + mmap.mmap(-1, 5000, tagname="foo")[:] # same tagname, but larger size + except: + pass + def test_main(): run_unittest(MmapTests) |