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4710c53d 1# PyOS_ascii_formatd is deprecated and not called from anywhere in\r
2# Python itself. So this module is the only place it gets tested.\r
3# Test that it works, and test that it's deprecated.\r
4\r
5import unittest\r
6from test.test_support import check_warnings, run_unittest, import_module\r
7\r
8# Skip tests if _ctypes module does not exist\r
9import_module('_ctypes')\r
10\r
11from ctypes import pythonapi, create_string_buffer, sizeof, byref, c_double\r
12PyOS_ascii_formatd = pythonapi.PyOS_ascii_formatd\r
13\r
14\r
15class FormatDeprecationTests(unittest.TestCase):\r
16\r
17 def test_format_deprecation(self):\r
18 buf = create_string_buffer(' ' * 100)\r
19\r
20 with check_warnings(('PyOS_ascii_formatd is deprecated',\r
21 DeprecationWarning)):\r
22 PyOS_ascii_formatd(byref(buf), sizeof(buf), '%+.10f',\r
23 c_double(10.0))\r
24 self.assertEqual(buf.value, '+10.0000000000')\r
25\r
26\r
27class FormatTests(unittest.TestCase):\r
28 # ensure that, for the restricted set of format codes,\r
29 # %-formatting returns the same values os PyOS_ascii_formatd\r
30 def test_format(self):\r
31 buf = create_string_buffer(' ' * 100)\r
32\r
33 tests = [\r
34 ('%f', 100.0),\r
35 ('%g', 100.0),\r
36 ('%#g', 100.0),\r
37 ('%#.2g', 100.0),\r
38 ('%#.2g', 123.4567),\r
39 ('%#.2g', 1.234567e200),\r
40 ('%e', 1.234567e200),\r
41 ('%e', 1.234),\r
42 ('%+e', 1.234),\r
43 ('%-e', 1.234),\r
44 ]\r
45\r
46 with check_warnings(('PyOS_ascii_formatd is deprecated',\r
47 DeprecationWarning)):\r
48 for format, val in tests:\r
49 PyOS_ascii_formatd(byref(buf), sizeof(buf), format,\r
50 c_double(val))\r
51 self.assertEqual(buf.value, format % val)\r
52\r
53\r
54def test_main():\r
55 run_unittest(FormatDeprecationTests, FormatTests)\r
56\r
57if __name__ == '__main__':\r
58 test_main()\r