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Issue #16147: PyUnicode_FromFormatV() doesn't need anymore to allocate a buffer

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on the heap to format numbers.
This commit is contained in:
Victor Stinner 2012-10-06 23:48:20 +02:00
parent ff5a848db5
commit 15a1136547
2 changed files with 26 additions and 48 deletions
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14
Lib/test/test_unicode.py
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@ -1716,9 +1716,10 @@ class UnicodeTest(string_tests.CommonTest,
# Test PyUnicode_FromFormat()
def test_from_format(self):
support.import_module('ctypes')
from ctypes import (pythonapi, py_object,
from ctypes import (
pythonapi, py_object, sizeof,
c_int, c_long, c_longlong, c_ssize_t,
c_uint, c_ulong, c_ulonglong, c_size_t)
c_uint, c_ulong, c_ulonglong, c_size_t, c_void_p)
name = "PyUnicode_FromFormat"
_PyUnicode_FromFormat = getattr(pythonapi, name)
_PyUnicode_FromFormat.restype = py_object
@ -1769,6 +1770,15 @@ class UnicodeTest(string_tests.CommonTest,
self.assertEqual(PyUnicode_FromFormat(b'%llu', c_ulonglong(123)), '123')
self.assertEqual(PyUnicode_FromFormat(b'%zu', c_size_t(123)), '123')
# test long output
min_longlong = -(2 ** (8 * sizeof(c_longlong) - 1))
max_longlong = -min_longlong - 1
self.assertEqual(PyUnicode_FromFormat(b'%lld', c_longlong(min_longlong)), str(min_longlong))
self.assertEqual(PyUnicode_FromFormat(b'%lld', c_longlong(max_longlong)), str(max_longlong))
max_ulonglong = 2 ** (8 * sizeof(c_ulonglong)) - 1
self.assertEqual(PyUnicode_FromFormat(b'%llu', c_ulonglong(max_ulonglong)), str(max_ulonglong))
PyUnicode_FromFormat(b'%p', c_void_p(-1))
# test padding (width and/or precision)
self.assertEqual(PyUnicode_FromFormat(b'%010i', c_int(123)), '123'.rjust(10, '0'))
self.assertEqual(PyUnicode_FromFormat(b'%100i', c_int(123)), '123'.rjust(100))