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Forward port r70471: Add object_pairs_hook. Issue 5381.

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This commit is contained in:
Raymond Hettinger 2009-04-21 03:09:17 +00:00
parent e5925773ba
commit 0ad98d8509
4 changed files with 54 additions and 8 deletions
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19
Lib/json/tests/test_decode.py
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@ -1,7 +1,9 @@
import decimal
from unittest import TestCase
from io import StringIO
import json
from collections import OrderedDict
class TestDecode(TestCase):
def test_decimal(self):
@ -13,3 +15,20 @@ class TestDecode(TestCase):
rval = json.loads('1', parse_int=float)
self.assert_(isinstance(rval, float))
self.assertEquals(rval, 1.0)
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))