mirror of https://github.com/python/cpython
30 lines
862 B
Python
30 lines
862 B
Python
import asyncio
|
|
import decimal
|
|
import unittest
|
|
|
|
|
|
class DecimalContextTest(unittest.TestCase):
|
|
|
|
def test_asyncio_task_decimal_context(self):
|
|
async def fractions(t, precision, x, y):
|
|
with decimal.localcontext() as ctx:
|
|
ctx.prec = precision
|
|
a = decimal.Decimal(x) / decimal.Decimal(y)
|
|
await asyncio.sleep(t)
|
|
b = decimal.Decimal(x) / decimal.Decimal(y ** 2)
|
|
return a, b
|
|
|
|
async def main():
|
|
r1, r2 = await asyncio.gather(
|
|
fractions(0.1, 3, 1, 3), fractions(0.2, 6, 1, 3))
|
|
|
|
return r1, r2
|
|
|
|
r1, r2 = asyncio.run(main())
|
|
|
|
self.assertEqual(str(r1[0]), '0.333')
|
|
self.assertEqual(str(r1[1]), '0.111')
|
|
|
|
self.assertEqual(str(r2[0]), '0.333333')
|
|
self.assertEqual(str(r2[1]), '0.111111')
|