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import pytest
from multidict import MultiDict
from google.rpc.error_details_pb2 import ResourceInfo
from grpclib.const import Status
from grpclib.events import listen, RecvRequest, RecvMessage, SendMessage
from grpclib.events import SendInitialMetadata, SendTrailingMetadata
from grpclib.exceptions import GRPCError
from grpclib.testing import ChannelFor
from dummy_pb2 import DummyRequest, DummyReply
from dummy_grpc import DummyServiceStub, DummyServiceBase
class DummyService(DummyServiceBase):
async def UnaryUnary(self, stream):
await stream.recv_message()
await stream.send_initial_metadata(metadata={'initial': 'true'})
await stream.send_message(DummyReply(value='pong'))
await stream.send_trailing_metadata(
metadata={'trailing': 'true'},
status=Status.OK,
status_message="Everything is OK",
status_details=[ResourceInfo()],
)
async def UnaryStream(self, stream):
raise GRPCError(Status.UNIMPLEMENTED)
async def StreamUnary(self, stream):
raise GRPCError(Status.UNIMPLEMENTED)
async def StreamStream(self, stream):
raise GRPCError(Status.UNIMPLEMENTED)
async def _test(event_type):
service = DummyService()
events = []
async def callback(event_):
events.append(event_)
channel_for = ChannelFor([service])
async with channel_for as channel:
server = channel_for._server
listen(server, event_type, callback)
stub = DummyServiceStub(channel)
reply = await stub.UnaryUnary(DummyRequest(value='ping'),
timeout=1,
metadata={'foo': 'bar'})
assert reply == DummyReply(value='pong')
event, = events
return event
@pytest.mark.asyncio
async def test_recv_request():
event = await _test(RecvRequest)
assert event.metadata == MultiDict({'foo': 'bar'})
assert event.method_name == '/dummy.DummyService/UnaryUnary'
assert event.deadline.time_remaining() > 0
assert event.content_type == 'application/grpc'
assert event.user_agent.startswith('grpc-python-grpclib')
assert event.peer.addr() is None
@pytest.mark.asyncio
async def test_recv_message():
event = await _test(RecvMessage)
assert event.message == DummyRequest(value='ping')
@pytest.mark.asyncio
async def test_send_message():
event = await _test(SendMessage)
assert event.message == DummyReply(value='pong')
@pytest.mark.asyncio
async def test_send_initial_metadata():
event = await _test(SendInitialMetadata)
assert event.metadata == MultiDict({'initial': 'true'})
@pytest.mark.asyncio
async def test_send_trailing_metadata():
event = await _test(SendTrailingMetadata)
assert event.metadata == MultiDict({'trailing': 'true'})
assert event.status is Status.OK
assert event.status_message == "Everything is OK"
assert isinstance(event.status_details[0], ResourceInfo)
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