diff options
Diffstat (limited to 'lib/python2.7/test/test_ascii_formatd.py')
-rw-r--r-- | lib/python2.7/test/test_ascii_formatd.py | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_ascii_formatd.py b/lib/python2.7/test/test_ascii_formatd.py new file mode 100644 index 0000000..c4a616d --- /dev/null +++ b/lib/python2.7/test/test_ascii_formatd.py @@ -0,0 +1,58 @@ +# 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() |