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esphome/tests/integration/test_defer_stress.py
J. Nick Koston cd2b50c27f stress test
2025-07-04 08:49:12 -05:00

91 lines
3.5 KiB
Python

"""Stress test for defer() thread safety with multiple threads."""
import asyncio
from aioesphomeapi import EntityState, Event, EventInfo, UserService
import pytest
from .types import APIClientConnectedFactory, RunCompiledFunction
@pytest.mark.asyncio
async def test_defer_stress(
yaml_config: str,
run_compiled: RunCompiledFunction,
api_client_connected: APIClientConnectedFactory,
) -> None:
"""Test that defer() doesn't crash when called rapidly from multiple threads."""
async with run_compiled(yaml_config), api_client_connected() as client:
# Verify we can connect
device_info = await client.device_info()
assert device_info is not None
assert device_info.name == "defer-stress-test"
# List entities and services
entity_info, services = await asyncio.wait_for(
client.list_entities_services(), timeout=5.0
)
# Find our test entities
test_complete_entity: EventInfo | None = None
test_result_entity: EventInfo | None = None
for entity in entity_info:
if isinstance(entity, EventInfo):
if entity.object_id == "test_complete":
test_complete_entity = entity
elif entity.object_id == "test_result":
test_result_entity = entity
assert test_complete_entity is not None, "test_complete event not found"
assert test_result_entity is not None, "test_result event not found"
# Find our test service
run_stress_test_service: UserService | None = None
for service in services:
if service.name == "run_stress_test":
run_stress_test_service = service
break
assert run_stress_test_service is not None, "run_stress_test service not found"
# Get the event loop
loop = asyncio.get_running_loop()
# Subscribe to states (events are delivered as EventStates through subscribe_states)
test_complete_future: asyncio.Future[bool] = loop.create_future()
test_result_future: asyncio.Future[bool] = loop.create_future()
def on_state(state: EntityState) -> None:
if isinstance(state, Event):
if state.key == test_complete_entity.key:
if (
state.event_type == "test_finished"
and not test_complete_future.done()
):
test_complete_future.set_result(True)
elif state.key == test_result_entity.key:
if not test_result_future.done():
if state.event_type == "passed":
test_result_future.set_result(True)
elif state.event_type == "failed":
test_result_future.set_result(False)
client.subscribe_states(on_state)
# Call the run_stress_test service to start the test
client.execute_service(run_stress_test_service, {})
# Wait for test completion with a longer timeout (threads run for 100ms + processing time)
try:
await asyncio.wait_for(test_complete_future, timeout=10.0)
test_passed = await asyncio.wait_for(test_result_future, timeout=1.0)
except asyncio.TimeoutError:
pytest.fail("Stress test did not complete within 10 seconds")
# Verify the test passed
assert test_passed is True, (
"Stress test failed - defer() crashed or failed under thread pressure"
)