diff options
| author | HongWeipeng <961365124@qq.com> | 2019-11-26 07:54:49 (GMT) |
|---|---|---|
| committer | Inada Naoki <songofacandy@gmail.com> | 2019-11-26 07:54:49 (GMT) |
| commit | 036fe85bd3e6cd01093d836d71792a1966f961e8 (patch) | |
| tree | cc1147b732a9913d34134641b321b15ddff47707 /Lib/test/test_long.py | |
| parent | 386d00cc341b549800776b906bfc6b20ea40c7db (diff) | |
| download | cpython-036fe85bd3e6cd01093d836d71792a1966f961e8.zip cpython-036fe85bd3e6cd01093d836d71792a1966f961e8.tar.gz cpython-036fe85bd3e6cd01093d836d71792a1966f961e8.tar.bz2 | |
bpo-27145: small_ints[x] could be returned in long_add and long_sub (GH-15716)
Diffstat (limited to 'Lib/test/test_long.py')
| -rw-r--r-- | Lib/test/test_long.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/test/test_long.py b/Lib/test/test_long.py index 53101b3..7ce37e8 100644 --- a/Lib/test/test_long.py +++ b/Lib/test/test_long.py @@ -956,6 +956,14 @@ class LongTest(unittest.TestCase): self.assertEqual(huge >> (sys.maxsize + 1), (1 << 499) + 5) self.assertEqual(huge >> (sys.maxsize + 1000), 0) + @support.cpython_only + def test_small_ints_in_huge_calculation(self): + a = 2 ** 100 + b = -a + 1 + c = a + 1 + self.assertIs(a + b, 1) + self.assertIs(c - a, 1) + def test_small_ints(self): for i in range(-5, 257): self.assertIs(i, i + 0) |