# PyOS_ascii_formatd is deprecated and not called from anywhere in | |
# Python itself. So this module is the only place it gets tested. | |
# Test that it works, and test that it's deprecated. | |
import unittest | |
from test.test_support import check_warnings, run_unittest, import_module | |
# Skip tests if _ctypes module does not exist | |
import_module('_ctypes') | |
from ctypes import pythonapi, create_string_buffer, sizeof, byref, c_double | |
PyOS_ascii_formatd = pythonapi.PyOS_ascii_formatd | |
class FormatDeprecationTests(unittest.TestCase): | |
def test_format_deprecation(self): | |
buf = create_string_buffer(' ' * 100) | |
with check_warnings(('PyOS_ascii_formatd is deprecated', | |
DeprecationWarning)): | |
PyOS_ascii_formatd(byref(buf), sizeof(buf), '%+.10f', | |
c_double(10.0)) | |
self.assertEqual(buf.value, '+10.0000000000') | |
class FormatTests(unittest.TestCase): | |
# ensure that, for the restricted set of format codes, | |
# %-formatting returns the same values os PyOS_ascii_formatd | |
def test_format(self): | |
buf = create_string_buffer(' ' * 100) | |
tests = [ | |
('%f', 100.0), | |
('%g', 100.0), | |
('%#g', 100.0), | |
('%#.2g', 100.0), | |
('%#.2g', 123.4567), | |
('%#.2g', 1.234567e200), | |
('%e', 1.234567e200), | |
('%e', 1.234), | |
('%+e', 1.234), | |
('%-e', 1.234), | |
] | |
with check_warnings(('PyOS_ascii_formatd is deprecated', | |
DeprecationWarning)): | |
for format, val in tests: | |
PyOS_ascii_formatd(byref(buf), sizeof(buf), format, | |
c_double(val)) | |
self.assertEqual(buf.value, format % val) | |
def test_main(): | |
run_unittest(FormatDeprecationTests, FormatTests) | |
if __name__ == '__main__': | |
test_main() |