AppPkg/Applications/Python/Python-2.7.10/Lib/json/tests/test_float.py

   1 import math
   2 from json.tests import PyTest, CTest
   3
   4
   5 class TestFloat(object):
   6     def test_floats(self):
   7         for num in [1617161771.7650001, math.pi, math.pi**100,
   8                     math.pi**-100, 3.1]:
   9             self.assertEqual(float(self.dumps(num)), num)
  10             self.assertEqual(self.loads(self.dumps(num)), num)
  11             self.assertEqual(self.loads(unicode(self.dumps(num))), num)
  12
  13     def test_ints(self):
  14         for num in [1, 1L, 1<<32, 1<<64]:
  15             self.assertEqual(self.dumps(num), str(num))
  16             self.assertEqual(int(self.dumps(num)), num)
  17             self.assertEqual(self.loads(self.dumps(num)), num)
  18             self.assertEqual(self.loads(unicode(self.dumps(num))), num)
  19
  20     def test_out_of_range(self):
  21         self.assertEqual(self.loads('[23456789012E666]'), [float('inf')])
  22         self.assertEqual(self.loads('[-23456789012E666]'), [float('-inf')])
  23
  24     def test_allow_nan(self):
  25         for val in (float('inf'), float('-inf'), float('nan')):
  26             out = self.dumps([val])
  27             if val == val:  # inf
  28                 self.assertEqual(self.loads(out), [val])
  29             else:  # nan
  30                 res = self.loads(out)
  31                 self.assertEqual(len(res), 1)
  32                 self.assertNotEqual(res[0], res[0])
  33             self.assertRaises(ValueError, self.dumps, [val], allow_nan=False)
  34
  35
  36 class TestPyFloat(TestFloat, PyTest): pass
  37 class TestCFloat(TestFloat, CTest): pass