mirror of
https://github.com/python/cpython.git
synced 2024-12-26 02:04:24 +08:00
47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
from test import test_support
|
|||
from test.test_support import bigaddrspacetest, MAX_Py_ssize_t
|
|||
|
|||
import unittest
|
|||
import operator
|
|||
import sys
|
|||
|
|||
|
|||
class StrTest(unittest.TestCase):
|
|||
|
|||
@bigaddrspacetest
|
|||
def test_concat(self):
|
|||
s1 = 'x' * MAX_Py_ssize_t
|
|||
self.assertRaises(OverflowError, operator.add, s1, '?')
|
|||
|
|||
@bigaddrspacetest
|
|||
def test_optimized_concat(self):
|
|||
x = 'x' * MAX_Py_ssize_t
|
|||
try:
|
|||
x = x + '?' # this statement uses a fast path in ceval.c
|
|||
except OverflowError:
|
|||
pass
|
|||
else:
|
|||
self.fail("should have raised OverflowError")
|
|||
try:
|
|||
x += '?' # this statement uses a fast path in ceval.c
|
|||
except OverflowError:
|
|||
pass
|
|||
else:
|
|||
self.fail("should have raised OverflowError")
|
|||
self.assertEquals(len(x), MAX_Py_ssize_t)
|
|||
|
|||
### the following test is pending a patch
|
|||
# (http://mail.python.org/pipermail/python-dev/2006-July/067774.html)
|
|||
#@bigaddrspacetest
|
|||
#def test_repeat(self):
|
|||
# self.assertRaises(OverflowError, operator.mul, 'x', MAX_Py_ssize_t + 1)
|
|||
|
|||
|
|||
def test_main():
|
|||
test_support.run_unittest(StrTest)
|
|||
|
|||
if __name__ == '__main__':
|
|||
if len(sys.argv) > 1:
|
|||
test_support.set_memlimit(sys.argv[1])
|
|||
test_main()
|
