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| author | Georg Brandl <georg@python.org> | 2009-01-01 12:15:31 (GMT) |
|---|---|---|
| committer | Georg Brandl <georg@python.org> | 2009-01-01 12:15:31 (GMT) |
| commit | 6269fec171191a38e418dc6b94697ca4fe6e4160 (patch) | |
| tree | 9f3999fff773c450ef8a3873069e22cc4a69381a /Lib | |
| parent | 775c30706882291fe6385066899f702f768ed95f (diff) | |
| download | cpython-6269fec171191a38e418dc6b94697ca4fe6e4160.zip cpython-6269fec171191a38e418dc6b94697ca4fe6e4160.tar.gz cpython-6269fec171191a38e418dc6b94697ca4fe6e4160.tar.bz2 | |
#4228: Pack negative values the same way as 2.4
in struct's L format.
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_struct.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Lib/test/test_struct.py b/Lib/test/test_struct.py index 232bffc..7f5f08b 100644 --- a/Lib/test/test_struct.py +++ b/Lib/test/test_struct.py @@ -2,6 +2,8 @@ import array import unittest import struct import warnings +warnings.filterwarnings("ignore", "struct integer overflow masking is deprecated", + DeprecationWarning) from functools import wraps from test.test_support import TestFailed, verbose, run_unittest @@ -461,6 +463,11 @@ class StructTest(unittest.TestCase): self.check_float_coerce(endian + fmt, 1.0) self.check_float_coerce(endian + fmt, 1.5) + def test_issue4228(self): + # Packing a long may yield either 32 or 64 bits + x = struct.pack('L', -1)[:4] + self.assertEqual(x, '\xff'*4) + def test_unpack_from(self): test_string = 'abcd01234' fmt = '4s' |