cpython/Lib/test/test_json/test_speedups.py

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from test.test_json import CTest
class BadBool:
def __bool__(self):
1/0
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class TestSpeedups(CTest):
def test_scanstring(self):
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self.assertEqual(self.json.decoder.scanstring.__module__, "_json")
self.assertIs(self.json.decoder.scanstring, self.json.decoder.c_scanstring)
def test_encode_basestring_ascii(self):
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self.assertEqual(self.json.encoder.encode_basestring_ascii.__module__,
"_json")
self.assertIs(self.json.encoder.encode_basestring_ascii,
self.json.encoder.c_encode_basestring_ascii)
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class TestDecode(CTest):
def test_make_scanner(self):
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self.assertRaises(AttributeError, self.json.scanner.c_make_scanner, 1)
def test_bad_bool_args(self):
def test(value):
self.json.decoder.JSONDecoder(strict=BadBool()).decode(value)
self.assertRaises(ZeroDivisionError, test, '""')
self.assertRaises(ZeroDivisionError, test, '{}')
class TestEncode(CTest):
def test_make_encoder(self):
# bpo-6986: The interpreter shouldn't crash in case c_make_encoder()
# receives invalid arguments.
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self.assertRaises(TypeError, self.json.encoder.c_make_encoder,
(True, False),
b"\xCD\x7D\x3D\x4E\x12\x4C\xF9\x79\xD7\x52\xBA\x82\xF2\x27\x4A\x7D\xA0\xCA\x75",
None)
def test_bad_str_encoder(self):
# Issue #31505: There shouldn't be an assertion failure in case
# c_make_encoder() receives a bad encoder() argument.
def bad_encoder1(*args):
return None
enc = self.json.encoder.c_make_encoder(None, lambda obj: str(obj),
bad_encoder1, None, ': ', ', ',
False, False, False)
with self.assertRaises(TypeError):
enc('spam', 4)
with self.assertRaises(TypeError):
enc({'spam': 42}, 4)
def bad_encoder2(*args):
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enc = self.json.encoder.c_make_encoder(None, lambda obj: str(obj),
bad_encoder2, None, ': ', ', ',
False, False, False)
with self.assertRaises(ZeroDivisionError):
enc('spam', 4)
def test_bad_markers_argument_to_encoder(self):
# https://bugs.python.org/issue45269
with self.assertRaisesRegex(
TypeError,
r'make_encoder\(\) argument 1 must be dict or None, not int',
):
self.json.encoder.c_make_encoder(1, None, None, None, ': ', ', ',
False, False, False)
def test_bad_bool_args(self):
def test(name):
self.json.encoder.JSONEncoder(**{name: BadBool()}).encode({'a': 1})
self.assertRaises(ZeroDivisionError, test, 'skipkeys')
self.assertRaises(ZeroDivisionError, test, 'ensure_ascii')
self.assertRaises(ZeroDivisionError, test, 'check_circular')
self.assertRaises(ZeroDivisionError, test, 'allow_nan')
self.assertRaises(ZeroDivisionError, test, 'sort_keys')
def test_unsortable_keys(self):
with self.assertRaises(TypeError):
self.json.encoder.JSONEncoder(sort_keys=True).encode({'a': 1, 1: 'a'})