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.assertEqual(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() |