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-rw-r--r--Lib/test/test_compile.py23
1 files changed, 23 insertions, 0 deletions
diff --git a/Lib/test/test_compile.py b/Lib/test/test_compile.py
index c567fa4..93a2fb5 100644
--- a/Lib/test/test_compile.py
+++ b/Lib/test/test_compile.py
@@ -101,6 +101,29 @@ class TestSpecifics(unittest.TestCase):
exec 'z = a' in g, d
self.assertEqual(d['z'], 12)
+ def test_extended_arg(self):
+ longexpr = 'x = x or ' + '-x' * 2500
+ code = '''
+def f(x):
+ %s
+ %s
+ %s
+ %s
+ %s
+ %s
+ %s
+ %s
+ %s
+ %s
+ # the expressions above have no effect, x == argument
+ while x:
+ x -= 1
+ # EXTENDED_ARG/JUMP_ABSOLUTE here
+ return x
+''' % ((longexpr,)*10)
+ exec code
+ self.assertEqual(f(5), 0)
+
def test_complex_args(self):
def comp_args((a, b)):