AppPkg/Applications/Python/Python-2.7.2/Lib/json/tests/test_decode.py

   1 import decimal
   2 from StringIO import StringIO
   3 from collections import OrderedDict
   4 from json.tests import PyTest, CTest
   5
   6
   7 class TestDecode(object):
   8     def test_decimal(self):
   9         rval = self.loads('1.1', parse_float=decimal.Decimal)
  10         self.assertTrue(isinstance(rval, decimal.Decimal))
  11         self.assertEqual(rval, decimal.Decimal('1.1'))
  12
  13     def test_float(self):
  14         rval = self.loads('1', parse_int=float)
  15         self.assertTrue(isinstance(rval, float))
  16         self.assertEqual(rval, 1.0)
  17
  18     def test_decoder_optimizations(self):
  19         # Several optimizations were made that skip over calls to
  20         # the whitespace regex, so this test is designed to try and
  21         # exercise the uncommon cases. The array cases are already covered.
  22         rval = self.loads('{   "key"    :    "value"    ,  "k":"v"    }')
  23         self.assertEqual(rval, {"key":"value", "k":"v"})
  24
  25     def test_empty_objects(self):
  26         self.assertEqual(self.loads('{}'), {})
  27         self.assertEqual(self.loads('[]'), [])
  28         self.assertEqual(self.loads('""'), u"")
  29         self.assertIsInstance(self.loads('""'), unicode)
  30
  31     def test_object_pairs_hook(self):
  32         s = '{"xkd":1, "kcw":2, "art":3, "hxm":4, "qrt":5, "pad":6, "hoy":7}'
  33         p = [("xkd", 1), ("kcw", 2), ("art", 3), ("hxm", 4),
  34              ("qrt", 5), ("pad", 6), ("hoy", 7)]
  35         self.assertEqual(self.loads(s), eval(s))
  36         self.assertEqual(self.loads(s, object_pairs_hook=lambda x: x), p)
  37         self.assertEqual(self.json.load(StringIO(s),
  38                                         object_pairs_hook=lambda x: x), p)
  39         od = self.loads(s, object_pairs_hook=OrderedDict)
  40         self.assertEqual(od, OrderedDict(p))
  41         self.assertEqual(type(od), OrderedDict)
  42         # the object_pairs_hook takes priority over the object_hook
  43         self.assertEqual(self.loads(s,
  44                                     object_pairs_hook=OrderedDict,
  45                                     object_hook=lambda x: None),
  46                          OrderedDict(p))
  47
  48
  49 class TestPyDecode(TestDecode, PyTest): pass
  50 class TestCDecode(TestDecode, CTest): pass