Application: gvSIG desktop » gvSIG scripting

import math

from unittest import TestCase

from simplejson.compat import long_type, text_type

import simplejson as json

from simplejson.decoder import NaN, PosInf, NegInf

class TestFloat(TestCase):

    def test_degenerates_allow(self):

        for inf in (PosInf, NegInf):

            self.assertEqual(json.loads(json.dumps(inf)), inf)

        # Python 2.5 doesn't have math.isnan

        nan = json.loads(json.dumps(NaN))

        self.assertTrue((0 + nan) != nan)

    def test_degenerates_ignore(self):

        for f in (PosInf, NegInf, NaN):

            self.assertEqual(json.loads(json.dumps(f, ignore_nan=True)), None)

    def test_degenerates_deny(self):

        for f in (PosInf, NegInf, NaN):

            self.assertRaises(ValueError, json.dumps, f, allow_nan=False)

    def test_floats(self):

        for num in [1617161771.7650001, math.pi, math.pi**100,

                    math.pi**-100, 3.1]:

            self.assertEqual(float(json.dumps(num)), num)

            self.assertEqual(json.loads(json.dumps(num)), num)

            self.assertEqual(json.loads(text_type(json.dumps(num))), num)

    def test_ints(self):

        for num in [1, long_type(1), 1<<32, 1<<64]:

            self.assertEqual(json.dumps(num), str(num))

            self.assertEqual(int(json.dumps(num)), num)

            self.assertEqual(json.loads(json.dumps(num)), num)

            self.assertEqual(json.loads(text_type(json.dumps(num))), num)