diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_complex.py | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Lib/test/test_complex.py b/Lib/test/test_complex.py index af39ee8..badb234 100644 --- a/Lib/test/test_complex.py +++ b/Lib/test/test_complex.py @@ -1,4 +1,5 @@ import unittest +import sys from test import support from test.test_grammar import (VALID_UNDERSCORE_LITERALS, INVALID_UNDERSCORE_LITERALS) @@ -248,6 +249,26 @@ class ComplexTest(unittest.TestCase): b = 5.1+2.3j self.assertRaises(ValueError, pow, a, b, 0) + # Check some boundary conditions; some of these used to invoke + # undefined behaviour (https://bugs.python.org/issue44698). We're + # not actually checking the results of these operations, just making + # sure they don't crash (for example when using clang's + # UndefinedBehaviourSanitizer). + values = (sys.maxsize, sys.maxsize+1, sys.maxsize-1, + -sys.maxsize, -sys.maxsize+1, -sys.maxsize+1) + for real in values: + for imag in values: + with self.subTest(real=real, imag=imag): + c = complex(real, imag) + try: + c ** real + except OverflowError: + pass + try: + c ** c + except OverflowError: + pass + def test_boolcontext(self): for i in range(100): self.assertTrue(complex(random() + 1e-6, random() + 1e-6)) |