cpython/Lib/json/tests/test_float.py

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import math
from unittest import TestCase
import json
class TestFloat(TestCase):
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)
def test_ints(self):
for num in [1, 1<<32, 1<<64]:
self.assertEqual(json.dumps(num), str(num))
self.assertEqual(int(json.dumps(num)), num)