artiq/test/pc_rpc.py

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2014-10-25 17:25:30 +08:00
import unittest
import sys
import subprocess
import asyncio
import time
import numpy as np
from artiq.management import pc_rpc
test_address = "::1"
test_port = 7777
class RPCCase(unittest.TestCase):
def test_echo(self):
# running this file outside of unittest starts the echo server
with subprocess.Popen([sys.executable,
sys.modules[__name__].__file__]) as proc:
try:
test_object = [5, 2.1, None, True, False,
{"a": 5, 2: np.linspace(0, 10, 1)},
(4, 5), (10,), "ab\nx\"'"]
for attempt in range(100):
time.sleep(.2)
try:
remote = pc_rpc.Client(test_address, test_port)
except ConnectionRefusedError:
pass
else:
break
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try:
test_object_back = remote.echo(test_object)
with self.assertRaises(pc_rpc.RemoteError):
remote.non_existing_method()
remote.quit()
finally:
remote.close_rpc()
finally:
try:
proc.wait(timeout=1)
except subprocess.TimeoutExpired:
proc.kill()
raise
self.assertEqual(test_object, test_object_back)
class Echo:
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def __init__(self):
self.terminate_notify = asyncio.Semaphore(0)
@asyncio.coroutine
def wait_quit(self):
yield from self.terminate_notify.acquire()
def quit(self):
self.terminate_notify.release()
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def echo(self, x):
return x
def run_server():
loop = asyncio.get_event_loop()
try:
echo = Echo()
server = pc_rpc.Server(echo)
loop.run_until_complete(server.start(test_address, test_port))
try:
loop.run_until_complete(echo.wait_quit())
finally:
loop.run_until_complete(server.stop())
finally:
loop.close()
if __name__ == "__main__":
run_server()