aioesphomeapi/tests/test_reconnect_logic.py

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import asyncio
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import logging
from ipaddress import ip_address
from unittest.mock import AsyncMock, MagicMock, patch
import pytest
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from zeroconf import (
DNSAddress,
DNSPointer,
DNSRecord,
RecordUpdate,
Zeroconf,
current_time_millis,
)
from zeroconf.asyncio import AsyncZeroconf
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from zeroconf.const import _CLASS_IN, _TYPE_A, _TYPE_PTR
from aioesphomeapi import APIConnectionError
from aioesphomeapi.client import APIClient
from aioesphomeapi.reconnect_logic import ReconnectLogic, ReconnectLogicState
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logging.getLogger("aioesphomeapi").setLevel(logging.DEBUG)
def _get_mock_zeroconf() -> MagicMock:
return MagicMock(spec=Zeroconf)
@pytest.mark.asyncio
async def test_reconnect_logic_name_from_host():
"""Test that the name is set correctly from the host."""
cli = APIClient(
address="mydevice.local",
port=6052,
password=None,
)
async def on_disconnect(expected_disconnect: bool) -> None:
pass
async def on_connect() -> None:
pass
rl = ReconnectLogic(
client=cli,
on_disconnect=on_disconnect,
on_connect=on_connect,
zeroconf_instance=MagicMock(spec=AsyncZeroconf),
)
assert rl._log_name == "mydevice"
assert cli._log_name == "mydevice"
@pytest.mark.asyncio
async def test_reconnect_logic_name_from_host_and_set():
"""Test that the name is set correctly from the host."""
cli = APIClient(
address="mydevice.local",
port=6052,
password=None,
)
async def on_disconnect(expected_disconnect: bool) -> None:
pass
async def on_connect() -> None:
pass
rl = ReconnectLogic(
client=cli,
on_disconnect=on_disconnect,
on_connect=on_connect,
zeroconf_instance=_get_mock_zeroconf(),
name="mydevice",
)
assert rl._log_name == "mydevice"
assert cli._log_name == "mydevice"
@pytest.mark.asyncio
async def test_reconnect_logic_name_from_address():
"""Test that the name is set correctly from the address."""
cli = APIClient(
address="1.2.3.4",
port=6052,
password=None,
)
async def on_disconnect(expected_disconnect: bool) -> None:
pass
async def on_connect() -> None:
pass
rl = ReconnectLogic(
client=cli,
on_disconnect=on_disconnect,
on_connect=on_connect,
zeroconf_instance=_get_mock_zeroconf(),
)
assert rl._log_name == "1.2.3.4"
assert cli._log_name == "1.2.3.4"
@pytest.mark.asyncio
async def test_reconnect_logic_name_from_name():
"""Test that the name is set correctly from the address."""
cli = APIClient(
address="1.2.3.4",
port=6052,
password=None,
)
async def on_disconnect(expected_disconnect: bool) -> None:
pass
async def on_connect() -> None:
pass
rl = ReconnectLogic(
client=cli,
on_disconnect=on_disconnect,
on_connect=on_connect,
zeroconf_instance=_get_mock_zeroconf(),
name="mydevice",
)
assert rl._log_name == "mydevice @ 1.2.3.4"
assert cli._log_name == "mydevice @ 1.2.3.4"
@pytest.mark.asyncio
async def test_reconnect_logic_state():
"""Test that reconnect logic state changes."""
on_disconnect_called = []
on_connect_called = []
on_connect_fail_called = []
class PatchableAPIClient(APIClient):
pass
cli = PatchableAPIClient(
address="1.2.3.4",
port=6052,
password=None,
)
async def on_disconnect(expected_disconnect: bool) -> None:
nonlocal on_disconnect_called
on_disconnect_called.append(expected_disconnect)
async def on_connect() -> None:
nonlocal on_connect_called
on_connect_called.append(True)
async def on_connect_fail(connect_exception: Exception) -> None:
nonlocal on_connect_called
on_connect_fail_called.append(connect_exception)
rl = ReconnectLogic(
client=cli,
on_disconnect=on_disconnect,
on_connect=on_connect,
zeroconf_instance=_get_mock_zeroconf(),
name="mydevice",
on_connect_error=on_connect_fail,
)
assert rl._log_name == "mydevice @ 1.2.3.4"
assert cli._log_name == "mydevice @ 1.2.3.4"
with patch.object(cli, "start_connection", side_effect=APIConnectionError):
await rl.start()
await asyncio.sleep(0)
await asyncio.sleep(0)
assert len(on_disconnect_called) == 0
assert len(on_connect_called) == 0
assert len(on_connect_fail_called) == 1
assert isinstance(on_connect_fail_called[-1], APIConnectionError)
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
with patch.object(cli, "start_connection"), patch.object(
cli, "finish_connection", side_effect=APIConnectionError
):
await rl.start()
await asyncio.sleep(0)
await asyncio.sleep(0)
assert len(on_disconnect_called) == 0
assert len(on_connect_called) == 0
assert len(on_connect_fail_called) == 2
assert isinstance(on_connect_fail_called[-1], APIConnectionError)
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
with patch.object(cli, "start_connection"), patch.object(cli, "finish_connection"):
await rl.start()
await asyncio.sleep(0)
await asyncio.sleep(0)
assert len(on_disconnect_called) == 0
assert len(on_connect_called) == 1
assert len(on_connect_fail_called) == 2
assert rl._connection_state is ReconnectLogicState.READY
await rl.stop()
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
@pytest.mark.asyncio
async def test_reconnect_retry():
"""Test that reconnect logic retry."""
on_disconnect_called = []
on_connect_called = []
on_connect_fail_called = []
class PatchableAPIClient(APIClient):
pass
cli = PatchableAPIClient(
address="1.2.3.4",
port=6052,
password=None,
)
async def on_disconnect(expected_disconnect: bool) -> None:
nonlocal on_disconnect_called
on_disconnect_called.append(expected_disconnect)
async def on_connect() -> None:
nonlocal on_connect_called
on_connect_called.append(True)
async def on_connect_fail(connect_exception: Exception) -> None:
nonlocal on_connect_called
on_connect_fail_called.append(connect_exception)
rl = ReconnectLogic(
client=cli,
on_disconnect=on_disconnect,
on_connect=on_connect,
zeroconf_instance=_get_mock_zeroconf(),
name="mydevice",
on_connect_error=on_connect_fail,
)
assert rl._log_name == "mydevice @ 1.2.3.4"
assert cli._log_name == "mydevice @ 1.2.3.4"
with patch.object(cli, "start_connection", side_effect=APIConnectionError):
await rl.start()
await asyncio.sleep(0)
await asyncio.sleep(0)
await asyncio.sleep(0)
assert len(on_disconnect_called) == 0
assert len(on_connect_called) == 0
assert len(on_connect_fail_called) == 1
assert isinstance(on_connect_fail_called[-1], APIConnectionError)
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
with patch.object(cli, "start_connection"), patch.object(cli, "finish_connection"):
# Should now retry
assert rl._connect_timer is not None
rl._connect_timer._run()
await asyncio.sleep(0)
await asyncio.sleep(0)
assert len(on_disconnect_called) == 0
assert len(on_connect_called) == 1
assert len(on_connect_fail_called) == 1
assert rl._connection_state is ReconnectLogicState.READY
await rl.stop()
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
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@pytest.mark.parametrize(
("record", "should_trigger_zeroconf", "log_text"),
(
(
DNSPointer(
"_esphomelib._tcp.local.",
_TYPE_PTR,
_CLASS_IN,
1000,
"mydevice._esphomelib._tcp.local.",
),
True,
"received mDNS record",
),
(
DNSPointer(
"_esphomelib._tcp.local.",
_TYPE_PTR,
_CLASS_IN,
1000,
"wrong_name._esphomelib._tcp.local.",
),
False,
"",
),
(
DNSAddress(
"mydevice.local.",
_TYPE_A,
_CLASS_IN,
1000,
ip_address("1.2.3.4").packed,
),
True,
"received mDNS record",
),
),
)
@pytest.mark.asyncio
async def test_reconnect_zeroconf(
caplog: pytest.LogCaptureFixture,
record: DNSRecord,
should_trigger_zeroconf: bool,
log_text: str,
) -> None:
"""Test that reconnect logic retry."""
class PatchableAPIClient(APIClient):
pass
cli = PatchableAPIClient(
address="1.2.3.4",
port=6052,
password=None,
)
mock_zeroconf = MagicMock(spec=Zeroconf)
rl = ReconnectLogic(
client=cli,
on_disconnect=AsyncMock(),
on_connect=AsyncMock(),
zeroconf_instance=mock_zeroconf,
name="mydevice",
on_connect_error=AsyncMock(),
)
assert rl._log_name == "mydevice @ 1.2.3.4"
assert cli._log_name == "mydevice @ 1.2.3.4"
async def slow_connect_fail(*args, **kwargs):
await asyncio.sleep(10)
raise APIConnectionError
async def quick_connect_fail(*args, **kwargs):
raise APIConnectionError
with patch.object(
cli, "start_connection", side_effect=quick_connect_fail
) as mock_start_connection:
await rl.start()
await asyncio.sleep(0)
assert mock_start_connection.call_count == 1
with patch.object(
cli, "start_connection", side_effect=slow_connect_fail
) as mock_start_connection:
await asyncio.sleep(0)
assert mock_start_connection.call_count == 0
rl.async_update_records(
mock_zeroconf, current_time_millis(), [RecordUpdate(record, None)]
)
await asyncio.sleep(0)
assert mock_start_connection.call_count == int(should_trigger_zeroconf)
assert log_text in caplog.text
await rl.stop()
assert rl._is_stopped is True
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
@pytest.mark.asyncio
async def test_reconnect_logic_stop_callback():
"""Test that the stop_callback stops the ReconnectLogic."""
cli = APIClient(
address="1.2.3.4",
port=6052,
password=None,
)
rl = ReconnectLogic(
client=cli,
on_disconnect=AsyncMock(),
on_connect=AsyncMock(),
zeroconf_instance=_get_mock_zeroconf(),
name="mydevice",
)
await rl.start()
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
await asyncio.sleep(0)
assert rl._connection_state is ReconnectLogicState.CONNECTING
assert rl._is_stopped is False
rl.stop_callback()
# Wait for cancellation to propagate
for _ in range(4):
await asyncio.sleep(0)
assert rl._is_stopped is True
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
@pytest.mark.asyncio
async def test_reconnect_logic_stop_callback_waits_for_handshake():
"""Test that the stop_callback waits for a handshake."""
class PatchableAPIClient(APIClient):
pass
cli = PatchableAPIClient(
address="1.2.3.4",
port=6052,
password=None,
)
rl = ReconnectLogic(
client=cli,
on_disconnect=AsyncMock(),
on_connect=AsyncMock(),
zeroconf_instance=_get_mock_zeroconf(),
name="mydevice",
)
assert rl._connection_state is ReconnectLogicState.DISCONNECTED
async def slow_connect_fail(*args, **kwargs):
await asyncio.sleep(10)
raise APIConnectionError
with patch.object(cli, "start_connection"), patch.object(
cli, "finish_connection", side_effect=slow_connect_fail
):
await rl.start()
for _ in range(3):
await asyncio.sleep(0)
assert rl._connection_state is ReconnectLogicState.HANDSHAKING
assert rl._is_stopped is False
rl.stop_callback()
# Wait for cancellation to propagate
for _ in range(4):
await asyncio.sleep(0)
assert rl._is_stopped is False
assert rl._connection_state is ReconnectLogicState.HANDSHAKING
rl._cancel_connect("forced cancel in test")
# Wait for cancellation to propagate
for _ in range(4):
await asyncio.sleep(0)
assert rl._is_stopped is True
assert rl._connection_state is ReconnectLogicState.DISCONNECTED