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.test_support import check_warnings, run_unittest, import_module 7 8 # Skip tests if _ctypes module does not exist 9 import_module('_ctypes') 10 11 from ctypes import pythonapi, create_string_buffer, sizeof, byref, c_double 12 PyOS_ascii_formatd = pythonapi.PyOS_ascii_formatd 13 14 15 class FormatDeprecationTests(unittest.TestCase): 16 17 def test_format_deprecation(self): 18 buf = create_string_buffer(' ' * 100) 19 20 with check_warnings(('PyOS_ascii_formatd is deprecated', 21 DeprecationWarning)): 22 PyOS_ascii_formatd(byref(buf), sizeof(buf), '%+.10f', 23 c_double(10.0)) 24 self.assertEqual(buf.value, '+10.0000000000') 25 26 27 class FormatTests(unittest.TestCase): 28 # ensure that, for the restricted set of format codes, 29 # %-formatting returns the same values os PyOS_ascii_formatd 30 def test_format(self): 31 buf = create_string_buffer(' ' * 100) 32 33 tests = [ 34 ('%f', 100.0), 35 ('%g', 100.0), 36 ('%#g', 100.0), 37 ('%#.2g', 100.0), 38 ('%#.2g', 123.4567), 39 ('%#.2g', 1.234567e200), 40 ('%e', 1.234567e200), 41 ('%e', 1.234), 42 ('%+e', 1.234), 43 ('%-e', 1.234), 44 ] 45 46 with check_warnings(('PyOS_ascii_formatd is deprecated', 47 DeprecationWarning)): 48 for format, val in tests: 49 PyOS_ascii_formatd(byref(buf), sizeof(buf), format, 50 c_double(val)) 51 self.assertEqual(buf.value, format % val) 52 53 54 def test_main(): 55 run_unittest(FormatDeprecationTests, FormatTests) 56 57 if __name__ == '__main__': 58 test_main() 59
