mirror of
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138 lines
4.9 KiB
Python
138 lines
4.9 KiB
Python
"""Stress test for defer() thread safety with multiple threads."""
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import asyncio
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from pathlib import Path
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import re
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from aioesphomeapi import UserService
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import pytest
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from .types import APIClientConnectedFactory, RunCompiledFunction
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@pytest.mark.asyncio
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async def test_scheduler_defer_stress(
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yaml_config: str,
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run_compiled: RunCompiledFunction,
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api_client_connected: APIClientConnectedFactory,
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) -> None:
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"""Test that defer() doesn't crash when called rapidly from multiple threads."""
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# Get the absolute path to the external components directory
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external_components_path = str(
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Path(__file__).parent / "fixtures" / "external_components"
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)
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# Replace the placeholder in the YAML config with the actual path
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yaml_config = yaml_config.replace(
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"EXTERNAL_COMPONENT_PATH", external_components_path
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)
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# Create a future to signal test completion
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loop = asyncio.get_event_loop()
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test_complete_future: asyncio.Future[None] = loop.create_future()
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# Track executed defers and their order
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executed_defers: set[int] = set()
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thread_executions: dict[
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int, list[int]
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] = {} # thread_id -> list of indices in execution order
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fifo_violations: list[str] = []
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def on_log_line(line: str) -> None:
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# Track all executed defers with thread and index info
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match = re.search(r"Executed defer (\d+) \(thread (\d+), index (\d+)\)", line)
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if not match:
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return
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defer_id = int(match.group(1))
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thread_id = int(match.group(2))
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index = int(match.group(3))
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executed_defers.add(defer_id)
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# Track execution order per thread
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if thread_id not in thread_executions:
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thread_executions[thread_id] = []
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# Check FIFO ordering within thread
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if thread_executions[thread_id] and thread_executions[thread_id][-1] >= index:
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fifo_violations.append(
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f"Thread {thread_id}: index {index} executed after "
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f"{thread_executions[thread_id][-1]}"
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)
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thread_executions[thread_id].append(index)
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# Check if we've executed all 1000 defers (0-999)
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if len(executed_defers) == 1000 and not test_complete_future.done():
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test_complete_future.set_result(None)
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async with (
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run_compiled(yaml_config, line_callback=on_log_line),
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api_client_connected() as client,
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):
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# Verify we can connect
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device_info = await client.device_info()
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assert device_info is not None
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assert device_info.name == "scheduler-defer-stress-test"
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# List entities and services
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entity_info, services = await asyncio.wait_for(
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client.list_entities_services(), timeout=5.0
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)
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# Find our test service
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run_stress_test_service: UserService | None = None
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for service in services:
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if service.name == "run_stress_test":
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run_stress_test_service = service
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break
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assert run_stress_test_service is not None, "run_stress_test service not found"
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# Call the run_stress_test service to start the test
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client.execute_service(run_stress_test_service, {})
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# Wait for all defers to execute (should be quick)
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try:
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await asyncio.wait_for(test_complete_future, timeout=5.0)
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except asyncio.TimeoutError:
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# Report how many we got
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pytest.fail(
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f"Stress test timed out. Only {len(executed_defers)} of "
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f"1000 defers executed. Missing IDs: "
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f"{sorted(set(range(1000)) - executed_defers)[:10]}..."
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)
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# Verify all defers executed
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assert len(executed_defers) == 1000, (
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f"Expected 1000 defers, got {len(executed_defers)}"
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)
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# Verify we have all IDs from 0-999
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expected_ids = set(range(1000))
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missing_ids = expected_ids - executed_defers
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assert not missing_ids, f"Missing defer IDs: {sorted(missing_ids)}"
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# Verify FIFO ordering was maintained within each thread
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assert not fifo_violations, "FIFO ordering violations detected:\n" + "\n".join(
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fifo_violations[:10]
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)
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# Verify each thread executed all its defers in order
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for thread_id, indices in thread_executions.items():
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assert len(indices) == 100, (
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f"Thread {thread_id} executed {len(indices)} defers, expected 100"
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)
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# Indices should be 0-99 in ascending order
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assert indices == list(range(100)), (
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f"Thread {thread_id} executed indices out of order: {indices[:10]}..."
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)
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# If we got here without crashing and with proper ordering, the test passed
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assert True, (
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"Test completed successfully - all 1000 defers executed with "
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"FIFO ordering preserved"
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)
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