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import asyncio
import logging
import warnings
from functools import partial
import pytest
import aio_pika
from aio_pika import Message
from aio_pika.exceptions import MessageProcessError
from aio_pika.message import IncomingMessage
from aio_pika.patterns.rpc import RPC
from aio_pika.patterns.rpc import log as rpc_logger
from tests import get_random_name
async def rpc_func(*, foo, bar):
assert not foo
assert not bar
return {"foo": "bar"}
async def rpc_func2(*, foo, bar):
assert not foo
assert not bar
return {"foo": "bar2"}
class TestCase:
async def test_simple(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
await rpc.register("test.rpc", rpc_func, auto_delete=True)
result = await rpc.proxy.test.rpc(foo=None, bar=None)
assert result == {"foo": "bar"}
await rpc.unregister(rpc_func)
await rpc.close()
# Close already closed
await rpc.close()
async def test_error(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
await rpc.register("test.rpc", rpc_func, auto_delete=True)
with pytest.raises(AssertionError):
await rpc.proxy.test.rpc(foo=True, bar=None)
await rpc.unregister(rpc_func)
await rpc.close()
async def test_unroutable(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
await rpc.register("test.rpc", rpc_func, auto_delete=True)
with pytest.raises(MessageProcessError):
await rpc.proxy.unroutable()
await rpc.unregister(rpc_func)
await rpc.close()
async def test_timed_out(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
await rpc.register("test.rpc", rpc_func, auto_delete=True)
await channel.declare_queue(
"test.timed_out",
auto_delete=True,
arguments={"x-dead-letter-exchange": RPC.DLX_NAME},
)
with pytest.raises(asyncio.TimeoutError):
await rpc.call("test.timed_out", expiration=1)
await rpc.unregister(rpc_func)
await rpc.close()
async def test_close_twice(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
await rpc.close()
await rpc.close()
async def test_init_twice(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
await rpc.initialize()
await rpc.close()
async def test_send_unknown_message(
self, channel: aio_pika.Channel, caplog,
):
rpc = await RPC.create(channel, auto_delete=True)
body = b"test body"
with caplog.at_level(logging.WARNING, logger=rpc_logger.name):
await channel.default_exchange.publish(
Message(body), routing_key=rpc.result_queue.name,
)
await asyncio.sleep(0.5)
for log_record in caplog.records:
if log_record.levelno == logging.WARNING:
break
else:
raise pytest.fail("Expected log message")
incoming = log_record.args[0]
assert isinstance(incoming, IncomingMessage)
assert incoming.body == body
assert (
"Message without correlation_id was received:"
in log_record.message
)
with caplog.at_level(logging.WARNING, logger=rpc_logger.name):
await channel.default_exchange.publish(
Message(body), routing_key="should-returned",
)
await asyncio.sleep(0.5)
for log_record in caplog.records:
if log_record.levelno == logging.WARNING:
break
else:
raise pytest.fail("Expected log message")
incoming = log_record.args[0]
assert isinstance(incoming, IncomingMessage)
assert incoming.body == body
assert (
"Message without correlation_id was received:"
in log_record.message
)
await rpc.close()
async def test_close_cancelling(
self, channel: aio_pika.Channel, event_loop,
):
rpc = await RPC.create(channel, auto_delete=True)
async def sleeper():
await asyncio.sleep(60)
method_name = get_random_name("test", "sleeper")
await rpc.register(method_name, sleeper, auto_delete=True)
tasks = set()
for _ in range(10):
tasks.add(event_loop.create_task(rpc.call(method_name)))
await rpc.close()
logging.info("Waiting for results")
for task in tasks:
with pytest.raises(asyncio.CancelledError):
await task
async def test_register_twice(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
async def bypass(_: aio_pika.abc.AbstractIncomingMessage):
return
await rpc.register("test.sleeper", bypass, auto_delete=True)
with pytest.raises(RuntimeError):
await rpc.register(
"test.sleeper", bypass, auto_delete=True,
)
await rpc.register("test.one", rpc_func, auto_delete=True)
with pytest.raises(RuntimeError):
await rpc.register("test.two", rpc_func, auto_delete=True)
await rpc.unregister(rpc_func)
await rpc.unregister(rpc_func)
await rpc.close()
async def test_register_non_coroutine(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
def bypass(_):
return
with pytest.deprecated_call():
await rpc.register(
"test.non-coroutine",
bypass, # type: ignore
auto_delete=True,
)
async def coro(_):
return
with pytest.warns(UserWarning) as record:
warnings.warn("Test", UserWarning)
await rpc.register(
"test.coroutine",
coro, # type: ignore
auto_delete=True,
)
assert len(record) == 1
with pytest.warns() as record:
warnings.warn("Test", UserWarning)
await rpc.register(
"test.coroutine_partial",
partial(partial(coro)), # type: ignore
auto_delete=True,
)
assert len(record) == 1
async def test_non_serializable_result(self, channel: aio_pika.Channel):
rpc = await RPC.create(channel, auto_delete=True)
async def bad_func():
async def inner():
await asyncio.sleep(0)
return inner()
await rpc.register(
"test.not-serializable",
bad_func,
auto_delete=True,
)
with pytest.raises(TypeError):
await rpc.call("test.not-serializable")
async def test_custom_exchange(self, channel: aio_pika.Channel):
rpc_ex1 = await RPC.create(channel, auto_delete=True, exchange="ex1")
rpc_ex2 = await RPC.create(channel, auto_delete=True, exchange="ex2")
rpc_default = await RPC.create(channel, auto_delete=True)
await rpc_ex1.register("test.rpc", rpc_func, auto_delete=True)
result = await rpc_ex1.proxy.test.rpc(foo=None, bar=None)
assert result == {"foo": "bar"}
with pytest.raises(MessageProcessError):
await rpc_ex2.proxy.test.rpc(foo=None, bar=None)
await rpc_ex2.register("test.rpc", rpc_func2, auto_delete=True)
result = await rpc_ex2.proxy.test.rpc(foo=None, bar=None)
assert result == {"foo": "bar2"}
with pytest.raises(MessageProcessError):
await rpc_default.proxy.test.rpc(foo=None, bar=None)
await rpc_default.register("test.rpc", rpc_func, auto_delete=True)
result = await rpc_default.proxy.test.rpc(foo=None, bar=None)
assert result == {"foo": "bar"}
await rpc_ex1.unregister(rpc_func)
await rpc_ex1.close()
await rpc_ex2.unregister(rpc_func2)
await rpc_ex2.close()
await rpc_default.unregister(rpc_func)
await rpc_default.close()
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