micropython-lib/micropython/streampair/test_streampair.py

55 wiersze
1.3 KiB
Python

import asyncio
import unittest
from streampair import streampair
def async_test(f):
"""
Decorator to run an async test function
"""
def wrapper(*args, **kwargs):
loop = asyncio.new_event_loop()
# loop.set_exception_handler(_exception_handler)
t = loop.create_task(f(*args, **kwargs))
loop.run_until_complete(t)
return wrapper
class StreamPairTestCase(unittest.TestCase):
def test_streampair(self):
a, b = streampair()
assert a.write(b"foo") == 3
assert b.write(b"bar") == 3
assert (r := a.read()) == b"bar", r
assert (r := b.read()) == b"foo", r
@async_test
async def test_async_streampair(self):
a, b = streampair()
ar = asyncio.StreamReader(a)
bw = asyncio.StreamWriter(b)
br = asyncio.StreamReader(b)
aw = asyncio.StreamWriter(a)
aw.write(b"foo\n")
await aw.drain()
assert not a.any()
assert b.any()
assert (r := await br.readline()) == b"foo\n", r
assert not b.any()
assert not a.any()
bw.write(b"bar\n")
await bw.drain()
assert not b.any()
assert a.any()
assert (r := await ar.readline()) == b"bar\n", r
assert not b.any()
assert not a.any()
if __name__ == "__main__":
unittest.main()