Eric Smith | df9d4d6 | 2009-04-29 12:34:19 +0000 | [diff] [blame] | 1 | # PyOS_ascii_formatd is deprecated and not called from anywhere in |
| 2 | # Python itself. So this module is the only place it gets tested. |
| 3 | # Test that it works, and test that it's deprecated. |
| 4 | |
| 5 | import unittest |
| 6 | from test.support import check_warnings, run_unittest, cpython_only |
| 7 | |
| 8 | class FormatDeprecationTests(unittest.TestCase): |
| 9 | |
| 10 | @cpython_only |
| 11 | def testFormatDeprecation(self): |
| 12 | # delay importing ctypes until we know we're in CPython |
| 13 | from ctypes import (pythonapi, create_string_buffer, sizeof, byref, |
| 14 | c_double) |
| 15 | PyOS_ascii_formatd = pythonapi.PyOS_ascii_formatd |
| 16 | buf = create_string_buffer(100) |
| 17 | |
| 18 | with check_warnings() as w: |
| 19 | PyOS_ascii_formatd(byref(buf), sizeof(buf), b'%+.10f', |
| 20 | c_double(10.0)) |
| 21 | self.assertEqual(buf.value, b'+10.0000000000') |
| 22 | |
Eric Smith | 1bfa799 | 2009-10-31 17:08:48 +0000 | [diff] [blame] | 23 | self.assertEqual(w.category, DeprecationWarning) |
Eric Smith | df9d4d6 | 2009-04-29 12:34:19 +0000 | [diff] [blame] | 24 | |
| 25 | class FormatTests(unittest.TestCase): |
| 26 | # ensure that, for the restricted set of format codes, |
| 27 | # %-formatting returns the same values os PyOS_ascii_formatd |
| 28 | @cpython_only |
| 29 | def testFormat(self): |
| 30 | # delay importing ctypes until we know we're in CPython |
| 31 | from ctypes import (pythonapi, create_string_buffer, sizeof, byref, |
| 32 | c_double) |
| 33 | PyOS_ascii_formatd = pythonapi.PyOS_ascii_formatd |
| 34 | buf = create_string_buffer(100) |
| 35 | |
| 36 | tests = [ |
| 37 | ('%f', 100.0), |
| 38 | ('%g', 100.0), |
| 39 | ('%#g', 100.0), |
| 40 | ('%#.2g', 100.0), |
| 41 | ('%#.2g', 123.4567), |
| 42 | ('%#.2g', 1.234567e200), |
| 43 | ('%e', 1.234567e200), |
| 44 | ('%e', 1.234), |
| 45 | ('%+e', 1.234), |
| 46 | ('%-e', 1.234), |
| 47 | ] |
| 48 | |
| 49 | with check_warnings(): |
| 50 | for format, val in tests: |
| 51 | PyOS_ascii_formatd(byref(buf), sizeof(buf), |
| 52 | bytes(format, 'ascii'), |
| 53 | c_double(val)) |
| 54 | self.assertEqual(buf.value, bytes(format % val, 'ascii')) |
| 55 | |
| 56 | |
| 57 | def test_main(): |
| 58 | run_unittest(FormatDeprecationTests, FormatTests) |
| 59 | |
| 60 | if __name__ == '__main__': |
| 61 | test_main() |