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authorEzio Melotti <ezio.melotti@gmail.com>2011-04-15 13:52:35 (GMT)
committerEzio Melotti <ezio.melotti@gmail.com>2011-04-15 13:52:35 (GMT)
commite1adeeb7fd25acb4649d0eae314c5b9dc02348d4 (patch)
treeea15ce1195e23707d74721f12fc5a8f9889996e4 /Lib/test/test_peepholer.py
parentb496159603e5cc31904a894166ecce52fea01a1c (diff)
parent71e84a6e27da7bfa8351d03ba8e52eb0b5150fb2 (diff)
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#5057: Merge with 3.2.
Diffstat (limited to 'Lib/test/test_peepholer.py')
-rw-r--r--Lib/test/test_peepholer.py18
1 files changed, 18 insertions, 0 deletions
diff --git a/Lib/test/test_peepholer.py b/Lib/test/test_peepholer.py
index 78de909..e0e3f63 100644
--- a/Lib/test/test_peepholer.py
+++ b/Lib/test/test_peepholer.py
@@ -205,6 +205,24 @@ class TestTranforms(unittest.TestCase):
asm = dis_single('a="x"*1000')
self.assertIn('(1000)', 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