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Diffstat (limited to 'Lib/test/test_peepholer.py')
| -rw-r--r-- | Lib/test/test_peepholer.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Lib/test/test_peepholer.py b/Lib/test/test_peepholer.py index 5696500..d1d5874 100644 --- a/Lib/test/test_peepholer.py +++ b/Lib/test/test_peepholer.py @@ -146,6 +146,24 @@ class TestTranforms(unittest.TestCase): asm = dis_single('a="x"*1000') self.assertTrue('(1000)' in asm) + def test_binary_subscr_on_unicode(self): + # valid code get optimized + asm = dis_single('"foo"[0]') + self.assertIn("('f')", asm) + self.assertNotIn('BINARY_SUBSCR', asm) + asm = dis_single('"\u0061\uffff"[1]') + self.assertIn("('\\uffff')", asm) + self.assertNotIn('BINARY_SUBSCR', asm) + + # invalid code doesn't get optimized + # out of range + asm = dis_single('"fuu"[10]') + self.assertIn('BINARY_SUBSCR', asm) + # non-BMP char (see #5057) + asm = dis_single('"\U00012345"[0]') + self.assertIn('BINARY_SUBSCR', asm) + + def test_folding_of_unaryops_on_constants(self): for line, elem in ( ('-0.5', '(-0.5)'), # unary negative |