cpython/Lib/test/test_json/test_encode_basestring_ascii.py

from collections import OrderedDict
from test.test_json import PyTest, CTest
from test.support import bigaddrspacetest


CASES = [
    ('/\\"\ucafe\ubabe\uab98\ufcde\ubcda\uef4a\x08\x0c\n\r\t`1~!@#$%^&*()_+-=[]{}|;:\',./<>?', '"/\\\\\\"\\ucafe\\ubabe\\uab98\\ufcde\\ubcda\\uef4a\\b\\f\\n\\r\\t`1~!@#$%^&*()_+-=[]{}|;:\',./<>?"'),
    ('\u0123\u4567\u89ab\ucdef\uabcd\uef4a', '"\\u0123\\u4567\\u89ab\\ucdef\\uabcd\\uef4a"'),
    ('controls', '"controls"'),
    ('\x08\x0c\n\r\t', '"\\b\\f\\n\\r\\t"'),
    ('{"object with 1 member":["array with 1 element"]}', '"{\\"object with 1 member\\":[\\"array with 1 element\\"]}"'),
    (' s p a c e d ', '" s p a c e d "'),
    ('\U0001d120', '"\\ud834\\udd20"'),
    ('\u03b1\u03a9', '"\\u03b1\\u03a9"'),
    ("`1~!@#$%^&*()_+-={':[,]}|;.</>?", '"`1~!@#$%^&*()_+-={\':[,]}|;.</>?"'),
    ('\x08\x0c\n\r\t', '"\\b\\f\\n\\r\\t"'),
    ('\u0123\u4567\u89ab\ucdef\uabcd\uef4a', '"\\u0123\\u4567\\u89ab\\ucdef\\uabcd\\uef4a"'),
]

class TestEncodeBasestringAscii:
    def test_encode_basestring_ascii(self):
        fname = self.json.encoder.encode_basestring_ascii.__name__
        for input_string, expect in CASES:
            result = self.json.encoder.encode_basestring_ascii(input_string)
            self.assertEqual(result, expect,
                f'{result!r} != {expect!r} for {fname}({input_string!r})')

    def test_ordered_dict(self):
        # See issue 6105
        items = [('one', 1), ('two', 2), ('three', 3), ('four', 4), ('five', 5)]
        s = self.dumps(OrderedDict(items))
        self.assertEqual(s, '{"one": 1, "two": 2, "three": 3, "four": 4, "five": 5}')

    def test_sorted_dict(self):
        items = [('one', 1), ('two', 2), ('three', 3), ('four', 4), ('five', 5)]
        s = self.dumps(dict(items), sort_keys=True)
        self.assertEqual(s, '{"five": 5, "four": 4, "one": 1, "three": 3, "two": 2}')


class TestPyEncodeBasestringAscii(TestEncodeBasestringAscii, PyTest): pass
class TestCEncodeBasestringAscii(TestEncodeBasestringAscii, CTest):
    @bigaddrspacetest
    def test_overflow(self):
        size = (2**32)//6 + 1
        s = "\x00"*size
        with self.assertRaises(OverflowError):
            self.json.encoder.encode_basestring_ascii(s)