| # 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.support import check_warnings, run_unittest, cpython_only |
| |
| class FormatDeprecationTests(unittest.TestCase): |
| |
| @cpython_only |
| def testFormatDeprecation(self): |
| # delay importing ctypes until we know we're in CPython |
| from ctypes import (pythonapi, create_string_buffer, sizeof, byref, |
| c_double) |
| PyOS_ascii_formatd = pythonapi.PyOS_ascii_formatd |
| buf = create_string_buffer(100) |
| |
| with check_warnings() as w: |
| PyOS_ascii_formatd(byref(buf), sizeof(buf), b'%+.10f', |
| c_double(10.0)) |
| self.assertEqual(buf.value, b'+10.0000000000') |
| |
| self.assertEqual(str(w.message), 'PyOS_ascii_formatd is deprecated, ' |
| 'use PyOS_double_to_string instead') |
| |
| class FormatTests(unittest.TestCase): |
| # ensure that, for the restricted set of format codes, |
| # %-formatting returns the same values os PyOS_ascii_formatd |
| @cpython_only |
| def testFormat(self): |
| # delay importing ctypes until we know we're in CPython |
| from ctypes import (pythonapi, create_string_buffer, sizeof, byref, |
| c_double) |
| PyOS_ascii_formatd = pythonapi.PyOS_ascii_formatd |
| 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(): |
| for format, val in tests: |
| PyOS_ascii_formatd(byref(buf), sizeof(buf), |
| bytes(format, 'ascii'), |
| c_double(val)) |
| self.assertEqual(buf.value, bytes(format % val, 'ascii')) |
| |
| |
| def test_main(): |
| run_unittest(FormatDeprecationTests, FormatTests) |
| |
| if __name__ == '__main__': |
| test_main() |