mylar/lib/simplejson/tests/test_decode.py

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import decimal
from unittest import TestCase
from StringIO import StringIO
import simplejson as json
from simplejson import OrderedDict
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.assertEquals(rval, decimal.Decimal('1.1'))
def test_float(self):
rval = json.loads('1', parse_int=float)
self.assertTrue(isinstance(rval, float))
self.assertEquals(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.assertEquals(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\": {}}"))