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test_unicode: use ctypes to test PyUnicode_FromFormat()

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Instead of _testcapi.format_unicode() because it has a limited API: it requires
exactly one argument of type unicode.
This commit is contained in:
Victor Stinner 2011-01-05 00:19:28 +00:00
parent 1ec121d0d1
commit ca1e7ec344
2 changed files with 20 additions and 18 deletions
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26
Lib/test/test_unicode.py
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@ -1423,22 +1423,36 @@ class UnicodeTest(string_tests.CommonTest,
self.assertEqual("%s" % s, '__str__ overridden')
self.assertEqual("{}".format(s), '__str__ overridden')
# Test PyUnicode_FromFormat()
def test_from_format(self):
from _testcapi import format_unicode
support.import_module('ctypes')
from ctypes import pythonapi, py_object
if sys.maxunicode == 65535:
name = "PyUnicodeUCS2_FromFormat"
else:
name = "PyUnicodeUCS4_FromFormat"
_PyUnicode_FromFormat = getattr(pythonapi, name)
_PyUnicode_FromFormat.restype = py_object
def PyUnicode_FromFormat(format, *args):
cargs = tuple(
py_object(arg) if isinstance(arg, str) else arg
for arg in args)
return _PyUnicode_FromFormat(format, *cargs)
# ascii format, non-ascii argument
text = format_unicode(b'ascii\x7f=%U', 'unicode\xe9')
text = PyUnicode_FromFormat(b'ascii\x7f=%U', 'unicode\xe9')
self.assertEqual(text, 'ascii\x7f=unicode\xe9')
# non-ascii format, ascii argument: ensure that PyUnicode_FromFormat()
# raises an error for a non-ascii format string.
# non-ascii format, ascii argument: ensure that PyUnicode_FromFormatV()
# raises an error
self.assertRaisesRegex(ValueError,
'^PyUnicode_FromFormatV\(\) expects an ASCII-encoded format '
'string, got a non-ASCII byte: 0xe9$',
format_unicode, b'unicode\xe9=%s', 'ascii')
PyUnicode_FromFormat, b'unicode\xe9=%s', 'ascii')
# other tests
text = format_unicode(b'%%A:%A', 'abc\xe9\uabcd\U0010ffff')
text = PyUnicode_FromFormat(b'%%A:%A', 'abc\xe9\uabcd\U0010ffff')
self.assertEqual(text, r"%A:'abc\xe9\uabcd\U0010ffff'")
# Test PyUnicode_AsWideChar()