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import unittest
from test.support import import_helper
_testcapi = import_helper.import_module('_testcapi')
class CAPITest(unittest.TestCase):
def test_decodeutf8(self):
"""Test PyUnicode_DecodeUTF8()"""
decodeutf8 = _testcapi.unicode_decodeutf8
for s in ['abc', '\xa1\xa2', '\u4f60\u597d', 'a\U0001f600']:
b = s.encode('utf-8')
self.assertEqual(decodeutf8(b), s)
self.assertEqual(decodeutf8(b, 'strict'), s)
self.assertRaises(UnicodeDecodeError, decodeutf8, b'\x80')
self.assertRaises(UnicodeDecodeError, decodeutf8, b'\xc0')
self.assertRaises(UnicodeDecodeError, decodeutf8, b'\xff')
self.assertRaises(UnicodeDecodeError, decodeutf8, b'a\xf0\x9f')
self.assertEqual(decodeutf8(b'a\xf0\x9f', 'replace'), 'a\ufffd')
self.assertEqual(decodeutf8(b'a\xf0\x9fb', 'replace'), 'a\ufffdb')
self.assertRaises(LookupError, decodeutf8, b'a\x80', 'foo')
# TODO: Test PyUnicode_DecodeUTF8() with NULL as data and
# negative size.
def test_decodeutf8stateful(self):
"""Test PyUnicode_DecodeUTF8Stateful()"""
decodeutf8stateful = _testcapi.unicode_decodeutf8stateful
for s in ['abc', '\xa1\xa2', '\u4f60\u597d', 'a\U0001f600']:
b = s.encode('utf-8')
self.assertEqual(decodeutf8stateful(b), (s, len(b)))
self.assertEqual(decodeutf8stateful(b, 'strict'), (s, len(b)))
self.assertRaises(UnicodeDecodeError, decodeutf8stateful, b'\x80')
self.assertRaises(UnicodeDecodeError, decodeutf8stateful, b'\xc0')
self.assertRaises(UnicodeDecodeError, decodeutf8stateful, b'\xff')
self.assertEqual(decodeutf8stateful(b'a\xf0\x9f'), ('a', 1))
self.assertEqual(decodeutf8stateful(b'a\xf0\x9f', 'replace'), ('a', 1))
self.assertRaises(UnicodeDecodeError, decodeutf8stateful, b'a\xf0\x9fb')
self.assertEqual(decodeutf8stateful(b'a\xf0\x9fb', 'replace'), ('a\ufffdb', 4))
self.assertRaises(LookupError, decodeutf8stateful, b'a\x80', 'foo')
# TODO: Test PyUnicode_DecodeUTF8Stateful() with NULL as data and
# negative size.
# TODO: Test PyUnicode_DecodeUTF8Stateful() with NULL as the address of
# "consumed".
if __name__ == "__main__":
unittest.main()
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