dbus-fast/tests/test_disconnect.py
2022-09-23 21:47:17 -10:00

67 lines
1.7 KiB
Python

import functools
import os
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(event_loop):
"""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",
)
)
event_loop.call_soon(bus.disconnect)
with pytest.raises((EOFError, BrokenPipeError)):
await ping
assert bus._disconnected
assert not bus.connected
assert (await bus.wait_for_disconnect()) is None
@pytest.mark.asyncio
async def test_unexpected_disconnect(event_loop):
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",
)
)
event_loop.call_soon(functools.partial(os.close, bus._fd))
with pytest.raises(OSError):
await ping
assert bus._disconnected
assert not bus.connected
with pytest.raises(OSError):
await bus.wait_for_disconnect()