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import asyncio
from unittest.mock import patch
import pytest
from dbus_fast import Message
from dbus_fast.aio import MessageBus
@pytest.mark.asyncio
async def test_bus_disconnect_before_reply():
"""In this test, the bus disconnects before the reply comes in. Make sure
the caller receives a reply with the error instead of hanging."""
bus = MessageBus()
assert not bus.connected
await bus.connect()
assert bus.connected
with patch.object(bus._writer, "_write_without_remove_writer"):
ping = bus.call(
Message(
destination="org.freedesktop.DBus",
path="/org/freedesktop/DBus",
interface="org.freedesktop.DBus",
member="Ping",
)
)
asyncio.get_running_loop().call_soon(bus.disconnect)
with pytest.raises((EOFError, BrokenPipeError)):
await ping
assert bus._disconnected
assert not bus.connected
await asyncio.wait_for(bus.wait_for_disconnect(), timeout=1)
@pytest.mark.asyncio
async def test_unexpected_disconnect():
bus = MessageBus()
class FakeSocket:
def send(self, *args, **kwargs):
raise OSError
assert not bus.connected
await bus.connect()
assert bus.connected
with (
patch.object(bus._writer, "_write_without_remove_writer"),
patch.object(bus._writer, "sock", FakeSocket()),
):
ping = bus.call(
Message(
destination="org.freedesktop.DBus",
path="/org/freedesktop/DBus",
interface="org.freedesktop.DBus",
member="Ping",
)
)
with pytest.raises(OSError):
await ping
assert bus._disconnected
assert not bus.connected
with pytest.raises(OSError):
await asyncio.wait_for(bus.wait_for_disconnect(), timeout=1)
bus.disconnect()
with pytest.raises(OSError):
await asyncio.wait_for(bus.wait_for_disconnect(), timeout=1)
|
