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Test for issue16772 and redoes the previous fix to accept __index__-aware 

objects as the base by using PyNumber_AsSsize_t similar to round().
This commit is contained in:
Gregory P. Smith 2012-12-25 22:38:32 -08:00
parent 83a2aa70af
commit a689e524e7
2 changed files with 27 additions and 4 deletions
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24
Lib/test/test_int.py
View File

@ -240,6 +240,30 @@ class IntTestCases(unittest.TestCase):
self.assertEquals(int(base=1000), 0)
self.assertEquals(int(base='foo'), 0)
def test_int_base_limits(self):
"""Testing the supported limits of the int() base parameter."""
self.assertEqual(int('0', 5), 0)
with self.assertRaises(ValueError):
int('0', 1)
with self.assertRaises(ValueError):
int('0', 37)
with self.assertRaises(ValueError):
int('0', -909) # An old magic value base from Python 2.
with self.assertRaises(ValueError):
int('0', base=0-(2**234))
with self.assertRaises(ValueError):
int('0', base=2**234)
# Bases 2 through 36 are supported.
for base in range(2,37):
self.assertEqual(int('0', base=base), 0)
def test_int_base_bad_types(self):
"""Not integer types are not valid bases; issue16772."""
with self.assertRaises(TypeError):
int('0', 5.5)
with self.assertRaises(TypeError):
int('0', 5.0)
def test_non_numeric_input_types(self):
# Test possible non-numeric types for the argument x, including
# subclasses of the explicitly documented accepted types.

7
Objects/longobject.c
View File

@ -4247,8 +4247,7 @@ static PyObject *
long_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
PyObject *obase = NULL, *x = NULL;
long base;
int overflow;
Py_ssize_t base;
static char *kwlist[] = {"x", "base", 0};
if (type != &PyLong_Type)
@ -4266,10 +4265,10 @@ long_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
return NULL;
}
base = PyLong_AsLongAndOverflow(obase, &overflow);
base = PyNumber_AsSsize_t(obase, NULL);
if (base == -1 && PyErr_Occurred())
return NULL;
if (overflow || (base != 0 && base < 2) || base > 36) {
if ((base != 0 && base < 2) || base > 36) {
PyErr_SetString(PyExc_ValueError,
"int() arg 2 must be >= 2 and <= 36");
return NULL;