Issue #10182: The re module doesn't truncate indices to 32 bits anymore.
Patch by Serhiy Storchaka.
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py
index ff2c953..befe0e8 100644
--- a/Lib/test/test_re.py
+++ b/Lib/test/test_re.py
@@ -1,4 +1,5 @@
from test.test_support import verbose, run_unittest, import_module
+from test.test_support import precisionbigmemtest, _2G
import re
from re import Scanner
import sys
@@ -819,6 +820,21 @@
# Test behaviour when not given a string or pattern as parameter
self.assertRaises(TypeError, re.compile, 0)
+ # The huge memuse is because of re.sub() using a list and a join()
+ # to create the replacement result.
+ @precisionbigmemtest(size=_2G, memuse=20)
+ def test_large(self, size):
+ # Issue #10182: indices were 32-bit-truncated.
+ s = 'a' * size
+ m = re.search('$', s)
+ self.assertIsNotNone(m)
+ self.assertEqual(m.start(), size)
+ self.assertEqual(m.end(), size)
+ r, n = re.subn('', '', s)
+ self.assertEqual(r, s)
+ self.assertEqual(n, size + 1)
+
+
def run_re_tests():
from test.re_tests import tests, SUCCEED, FAIL, SYNTAX_ERROR
if verbose: