Viewing file:  test_decode.py (5.06 KB) -rw-r--r--
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from __future__ import absolute_import
import decimal
from unittest import TestCase
import sys
import simplejson as json
from simplejson.compat import StringIO, b, binary_type
from simplejson import OrderedDict
class MisbehavingBytesSubtype(binary_type):
def decode(self, encoding=None):
return "bad decode"
def __str__(self):
return "bad __str__"
def __bytes__(self):
return b("bad __bytes__")
class TestDecode(TestCase):
if not hasattr(TestCase, 'assertIs'):
def assertIs(self, a, b):
self.assertTrue(a is b, '%r is %r' % (a, b))
def test_decimal(self):
rval = json.loads('1.1', parse_float=decimal.Decimal)
self.assertTrue(isinstance(rval, decimal.Decimal))
self.assertEqual(rval, decimal.Decimal('1.1'))
def test_float(self):
rval = json.loads('1', parse_int=float)
self.assertTrue(isinstance(rval, float))
self.assertEqual(rval, 1.0)
def test_decoder_optimizations(self):
# Several optimizations were made that skip over calls to
# the whitespace regex, so this test is designed to try and
# exercise the uncommon cases. The array cases are already covered.
rval = json.loads('{ "key" : "value" , "k":"v" }')
self.assertEqual(rval, {"key":"value", "k":"v"})
def test_empty_objects(self):
s = '{}'
self.assertEqual(json.loads(s), eval(s))
s = '[]'
self.assertEqual(json.loads(s), eval(s))
s = '""'
self.assertEqual(json.loads(s), eval(s))
def test_object_pairs_hook(self):
s = '{"xkd":1, "kcw":2, "art":3, "hxm":4, "qrt":5, "pad":6, "hoy":7}'
p = [("xkd", 1), ("kcw", 2), ("art", 3), ("hxm", 4),
("qrt", 5), ("pad", 6), ("hoy", 7)]
self.assertEqual(json.loads(s), eval(s))
self.assertEqual(json.loads(s, object_pairs_hook=lambda x: x), p)
self.assertEqual(json.load(StringIO(s),
object_pairs_hook=lambda x: x), p)
od = json.loads(s, object_pairs_hook=OrderedDict)
self.assertEqual(od, OrderedDict(p))
self.assertEqual(type(od), OrderedDict)
# the object_pairs_hook takes priority over the object_hook
self.assertEqual(json.loads(s,
object_pairs_hook=OrderedDict,
object_hook=lambda x: None),
OrderedDict(p))
def check_keys_reuse(self, source, loads):
rval = loads(source)
(a, b), (c, d) = sorted(rval[0]), sorted(rval[1])
self.assertIs(a, c)
self.assertIs(b, d)
def test_keys_reuse_str(self):
s = u'[{"a_key": 1, "b_\xe9": 2}, {"a_key": 3, "b_\xe9": 4}]'.encode('utf8')
self.check_keys_reuse(s, json.loads)
def test_keys_reuse_unicode(self):
s = u'[{"a_key": 1, "b_\xe9": 2}, {"a_key": 3, "b_\xe9": 4}]'
self.check_keys_reuse(s, json.loads)
def test_empty_strings(self):
self.assertEqual(json.loads('""'), "")
self.assertEqual(json.loads(u'""'), u"")
self.assertEqual(json.loads('[""]'), [""])
self.assertEqual(json.loads(u'[""]'), [u""])
def test_raw_decode(self):
cls = json.decoder.JSONDecoder
self.assertEqual(
({'a': {}}, 9),
cls().raw_decode("{\"a\": {}}"))
# http://code.google.com/p/simplejson/issues/detail?id=85
self.assertEqual(
({'a': {}}, 9),
cls(object_pairs_hook=dict).raw_decode("{\"a\": {}}"))
# https://github.com/simplejson/simplejson/pull/38
self.assertEqual(
({'a': {}}, 11),
cls().raw_decode(" \n{\"a\": {}}"))
def test_bytes_decode(self):
cls = json.decoder.JSONDecoder
data = b('"\xe2\x82\xac"')
self.assertEqual(cls().decode(data), u'\u20ac')
self.assertEqual(cls(encoding='latin1').decode(data), u'\xe2\x82\xac')
self.assertEqual(cls(encoding=None).decode(data), u'\u20ac')
data = MisbehavingBytesSubtype(b('"\xe2\x82\xac"'))
self.assertEqual(cls().decode(data), u'\u20ac')
self.assertEqual(cls(encoding='latin1').decode(data), u'\xe2\x82\xac')
self.assertEqual(cls(encoding=None).decode(data), u'\u20ac')
def test_bounds_checking(self):
# https://github.com/simplejson/simplejson/issues/98
j = json.decoder.JSONDecoder()
for i in [4, 5, 6, -1, -2, -3, -4, -5, -6]:
self.assertRaises(ValueError, j.scan_once, '1234', i)
self.assertRaises(ValueError, j.raw_decode, '1234', i)
x, y = sorted(['128931233', '472389423'], key=id)
diff = id(x) - id(y)
self.assertRaises(ValueError, j.scan_once, y, diff)
self.assertRaises(ValueError, j.raw_decode, y, i)
def test_bounded_int(self):
# SJ-PT-23-03, limit quadratic number parsing per Python 3.11
max_str_digits = getattr(sys, 'get_int_max_str_digits', lambda: 4300)()
s = '1' + '0' * (max_str_digits - 1)
self.assertEqual(json.loads(s), int(s))
self.assertRaises(ValueError, json.loads, s + '0')
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