2fbb9c3ad2
Fixes namespace collision with Reticulum's own RNS.Interfaces package. When both packages were installed, the collision caused import issues and prevented BLE discovery between devices. Changes: - Rename src/RNS/Interfaces/ to src/ble_reticulum/ - Update pyproject.toml package configuration - Update all imports in source and test files 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
791 lines
26 KiB
Python
791 lines
26 KiB
Python
"""
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Tests for HCI Error Fixes (Event-Driven D-Bus Monitoring)
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Tests the fixes for HCI errors on BCM43xx single-radio Bluetooth chips.
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The root cause was D-Bus monitoring threads polling every 0.5s, causing
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radio contention with advertising/scanning operations.
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Fixes tested:
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1. Event-driven D-Bus monitor: Uses asyncio.Event instead of polling
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2. Stale poll improvements: Uses threading.Event.wait() instead of busy-wait
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3. Stop() shutdown behavior: Uses call_soon_threadsafe for immediate stop
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Reference: /tmp/hci_error_analysis.md
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"""
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import pytest
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import sys
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import os
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import asyncio
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import threading
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import time
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from unittest.mock import Mock, MagicMock, AsyncMock, patch, PropertyMock
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# Add src to path
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '../src'))
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# Mock RNS module before importing
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import RNS
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if not hasattr(RNS, 'LOG_INFO'):
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RNS.LOG_CRITICAL = 0
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RNS.LOG_ERROR = 1
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RNS.LOG_WARNING = 2
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RNS.LOG_NOTICE = 3
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RNS.LOG_INFO = 4
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RNS.LOG_VERBOSE = 5
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RNS.LOG_DEBUG = 6
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RNS.LOG_EXTREME = 7
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RNS.log = Mock()
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class TestEventDrivenDBusMonitor:
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"""Test event-driven D-Bus monitoring (replaces polling)."""
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@pytest.fixture
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def mock_driver(self):
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"""Create mock driver with required attributes."""
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driver = Mock()
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driver._peers = {}
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driver._peers_lock = threading.RLock()
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driver._log = Mock()
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driver._handle_peripheral_disconnected = Mock()
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return driver
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@pytest.fixture
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def mock_gatt_server(self, mock_driver):
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"""Create mock GATT server with event-driven monitoring setup."""
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from ble_reticulum.linux_bluetooth_driver import BluezeroGATTServer
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server = Mock(spec=BluezeroGATTServer)
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server.driver = mock_driver
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server.stop_event = threading.Event()
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server.connected_centrals = {}
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server.centrals_lock = threading.RLock()
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server._log = Mock()
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server._handle_central_disconnected = Mock()
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server.log_prefix = "[TEST]"
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# Event-driven shutdown attributes
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server._monitor_loop = None
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server._async_stop_event = None
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return server
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def test_async_stop_event_initialized(self, mock_gatt_server):
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"""Test that _async_stop_event is initialized to None before monitoring starts."""
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assert mock_gatt_server._async_stop_event is None
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assert mock_gatt_server._monitor_loop is None
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def test_async_event_setup_in_monitor_loop(self):
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"""Test that asyncio.Event and loop reference are set up correctly in monitor_loop."""
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async def async_test():
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loop = asyncio.get_running_loop()
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async_stop = asyncio.Event()
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# These would be set on self in the real implementation
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_monitor_loop = loop
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_async_stop_event = async_stop
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# Verify they're set correctly
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assert _monitor_loop is loop
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assert _async_stop_event is async_stop
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assert isinstance(_async_stop_event, asyncio.Event)
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assert not _async_stop_event.is_set()
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asyncio.run(async_test())
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def test_async_event_wait_blocks_until_set(self):
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"""Test that await async_stop.wait() blocks until event is set."""
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async def async_test():
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async_stop = asyncio.Event()
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wait_completed = False
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async def wait_for_stop():
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nonlocal wait_completed
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await async_stop.wait()
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wait_completed = True
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# Start waiting
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wait_task = asyncio.create_task(wait_for_stop())
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# Should still be waiting
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await asyncio.sleep(0.1)
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assert not wait_completed
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# Set the event
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async_stop.set()
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# Should complete quickly
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await asyncio.wait_for(wait_task, timeout=1.0)
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assert wait_completed
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asyncio.run(async_test())
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def test_async_event_wakes_immediately_when_set(self):
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"""Test that async event wakes immediately (no 5s delay like polling)."""
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async def async_test():
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async_stop = asyncio.Event()
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wake_time = None
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async def wait_for_stop():
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nonlocal wake_time
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await async_stop.wait()
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wake_time = time.time()
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# Start waiting
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wait_task = asyncio.create_task(wait_for_stop())
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await asyncio.sleep(0.01) # Let task start
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# Set event and measure response time
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set_time = time.time()
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async_stop.set()
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await asyncio.wait_for(wait_task, timeout=1.0)
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# Response should be immediate (< 100ms vs 5000ms polling)
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response_time = wake_time - set_time
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assert response_time < 0.1, f"Response time {response_time}s should be < 0.1s"
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asyncio.run(async_test())
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def test_call_soon_threadsafe_sets_event(self):
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"""Test that call_soon_threadsafe can set async event from another thread."""
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async def async_test():
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async_stop = asyncio.Event()
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loop = asyncio.get_running_loop()
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event_was_set = False
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async def wait_for_stop():
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nonlocal event_was_set
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await async_stop.wait()
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event_was_set = True
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# Start waiting in async context
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wait_task = asyncio.create_task(wait_for_stop())
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await asyncio.sleep(0.01)
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# Set event from sync code (simulating stop() call)
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# In real implementation this would be from another thread
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loop.call_soon_threadsafe(async_stop.set)
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await asyncio.wait_for(wait_task, timeout=1.0)
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assert event_was_set
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asyncio.run(async_test())
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def test_call_soon_threadsafe_from_thread(self):
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"""Test that call_soon_threadsafe works from a separate thread."""
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event_set_in_loop = threading.Event()
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loop_started = threading.Event()
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stored_loop = None
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stored_event = None
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async def async_main():
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nonlocal stored_loop, stored_event
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async_stop = asyncio.Event()
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loop = asyncio.get_running_loop()
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# Store for cross-thread access
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stored_loop = loop
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stored_event = async_stop
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loop_started.set()
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# Wait for signal
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await async_stop.wait()
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event_set_in_loop.set()
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# Run async code in thread
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async_thread = threading.Thread(
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target=lambda: asyncio.run(async_main()),
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daemon=True
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)
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async_thread.start()
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# Wait for loop to start
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loop_started.wait(timeout=2.0)
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assert stored_loop is not None
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assert stored_event is not None
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# Signal from main thread
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stored_loop.call_soon_threadsafe(stored_event.set)
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# Verify event was set
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event_set_in_loop.wait(timeout=2.0)
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assert event_set_in_loop.is_set()
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async_thread.join(timeout=1.0)
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def test_no_polling_loop_in_monitor(self):
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"""Test that there's no periodic polling - just event wait."""
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async def async_test():
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# The implementation should NOT have this pattern:
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# while not self.stop_event.is_set():
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# await asyncio.sleep(0.5) # BAD - polling
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# Instead it should use:
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# await async_stop.wait() # GOOD - event-driven
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async_stop = asyncio.Event()
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iterations = 0
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async def event_driven_wait():
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nonlocal iterations
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# This is the correct pattern - single wait, no loop iterations
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await async_stop.wait()
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iterations = 1 # Only one "iteration" - the wait itself
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# Test event-driven pattern
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async_stop.set() # Set immediately for test
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await event_driven_wait()
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# Event-driven should only have 1 "iteration"
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assert iterations == 1
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asyncio.run(async_test())
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class TestStalePollImprovements:
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"""Test stale connection polling improvements."""
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@pytest.fixture
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def mock_gatt_server(self):
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"""Create mock GATT server with polling setup."""
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server = Mock()
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server.stop_event = threading.Event()
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server.connected_centrals = {}
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server.centrals_lock = threading.RLock()
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server._log = Mock()
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server._handle_central_disconnected = Mock()
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server.log_prefix = "[TEST]"
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return server
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def test_event_wait_used_instead_of_busy_loop(self):
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"""Test that threading.Event.wait(timeout) is used instead of busy-wait."""
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stop_event = threading.Event()
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wait_called = False
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# The implementation should use:
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# if self.stop_event.wait(timeout=300.0):
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# break
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# Not the old pattern:
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# for _ in range(240):
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# if self.stop_event.is_set():
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# break
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# time.sleep(0.5)
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def proper_wait_pattern():
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nonlocal wait_called
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if stop_event.wait(timeout=0.1): # Short timeout for test
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wait_called = True
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return True
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return False
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# Should return False when not set
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result = proper_wait_pattern()
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assert not result
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assert not wait_called
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# Should return True when set
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stop_event.set()
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result = proper_wait_pattern()
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assert result
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assert wait_called
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def test_immediate_stop_response(self):
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"""Test that stop signal is responded to immediately (not after 0.5s polls)."""
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stop_event = threading.Event()
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response_time = None
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thread_exited = threading.Event()
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def wait_loop():
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nonlocal response_time
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start = time.time()
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# Using Event.wait() pattern
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stop_event.wait(timeout=300.0)
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response_time = time.time() - start
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thread_exited.set()
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thread = threading.Thread(target=wait_loop, daemon=True)
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thread.start()
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# Let thread start waiting
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time.sleep(0.05)
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# Signal stop
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stop_event.set()
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# Wait for thread to respond
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thread_exited.wait(timeout=1.0)
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# Response should be immediate (< 100ms vs old 500ms polling interval)
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assert response_time is not None
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assert response_time < 0.15, f"Response time {response_time}s should be < 0.15s"
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def test_poll_interval_is_300_seconds(self):
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"""Test that stale poll interval is 300 seconds (5 minutes)."""
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# The implementation uses:
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# if self.stop_event.wait(timeout=300.0):
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# Verify the constant value (we can't easily test 5 min wait in unit test)
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EXPECTED_INTERVAL = 300.0
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# This would be tested by reading the actual code value
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# For now, we simulate what the implementation should do
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stop_event = threading.Event()
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poll_count = 0
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def poll_loop():
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nonlocal poll_count
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while not stop_event.is_set():
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# In real code, this is 300.0
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if stop_event.wait(timeout=0.01): # Short for test
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break
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poll_count += 1
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if poll_count >= 5: # Limit iterations for test
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break
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thread = threading.Thread(target=poll_loop, daemon=True)
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thread.start()
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time.sleep(0.1)
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stop_event.set()
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thread.join(timeout=1.0)
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# Thread should have exited cleanly
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assert not thread.is_alive()
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def test_single_wait_call_per_interval(self):
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"""Test that each interval uses single wait() call, not 600 iterations."""
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stop_event = threading.Event()
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wait_call_count = 0
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original_wait = threading.Event.wait
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def counting_wait(self, timeout=None):
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nonlocal wait_call_count
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wait_call_count += 1
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return original_wait(self, timeout=0.01 if timeout else timeout)
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with patch.object(threading.Event, 'wait', counting_wait):
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# Simulate one "poll cycle"
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stop_event.wait(timeout=300.0) # This is the new pattern
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# Should be just 1 wait call, not 600+ like the old busy-loop
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assert wait_call_count == 1
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def test_no_busy_loop_iterations(self):
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"""Test that the old busy-loop pattern is not used."""
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stop_event = threading.Event()
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sleep_count = 0
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# Old pattern would have 600 sleep calls per 5-minute interval:
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# for _ in range(600):
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# if self.stop_event.is_set():
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# break
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# time.sleep(0.5)
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# New pattern has zero sleep calls:
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# if self.stop_event.wait(timeout=300.0):
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# break
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def new_poll_pattern():
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nonlocal sleep_count
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# New pattern - no sleep calls
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if stop_event.wait(timeout=0.01):
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return True
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# No time.sleep() here!
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return False
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new_poll_pattern()
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# No explicit sleep calls in new pattern
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assert sleep_count == 0
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class TestStopShutdownBehavior:
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"""Test stop() method shutdown behavior."""
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@pytest.fixture
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def mock_gatt_server(self):
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"""Create mock GATT server for stop() testing."""
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server = Mock()
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server.stop_event = threading.Event()
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server.running = True
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server._log = Mock()
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server._monitor_loop = None
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server._async_stop_event = None
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server.server_thread = None
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server.disconnect_monitor_thread = None
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server.stale_poll_thread = None
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server.ble_agent = None
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server.connected_centrals = {}
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server.centrals_lock = threading.RLock()
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return server
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def test_stop_sets_stop_event(self, mock_gatt_server):
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"""Test that stop() sets the stop_event."""
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assert not mock_gatt_server.stop_event.is_set()
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# Simulate stop() behavior
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mock_gatt_server.stop_event.set()
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assert mock_gatt_server.stop_event.is_set()
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def test_stop_signals_async_event(self):
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"""Test that stop() signals async event via call_soon_threadsafe."""
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async def async_test():
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async_stop = asyncio.Event()
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loop = asyncio.get_running_loop()
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# Simulate stop() calling call_soon_threadsafe
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loop.call_soon_threadsafe(async_stop.set)
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# Give event loop a chance to process
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await asyncio.sleep(0.01)
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assert async_stop.is_set()
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asyncio.run(async_test())
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def test_stop_handles_runtime_error_gracefully(self):
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"""Test that stop() handles RuntimeError when loop is already stopped."""
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# Create a mock loop that raises RuntimeError
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mock_loop = Mock()
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mock_loop.call_soon_threadsafe = Mock(side_effect=RuntimeError("Loop is closed"))
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mock_async_stop = Mock()
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# Simulate the stop() error handling code
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_monitor_loop = mock_loop
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_async_stop_event = mock_async_stop
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try:
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_monitor_loop.call_soon_threadsafe(_async_stop_event.set)
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except RuntimeError:
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pass # Should be caught and ignored
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# Test passes if no exception is raised
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def test_stop_checks_for_none_references(self):
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"""Test that stop() checks for None before calling call_soon_threadsafe."""
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_monitor_loop = None
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_async_stop_event = None
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# Simulate the stop() check
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if _monitor_loop and _async_stop_event:
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# This should NOT be reached
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pytest.fail("Should not call when references are None")
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# Test passes - no error when refs are None
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def test_shutdown_latency_improvement(self):
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"""Test that shutdown responds immediately (not up to 5s delay)."""
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stop_event = threading.Event()
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async_stop_triggered = threading.Event()
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thread_exited = threading.Event()
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stored_loop = None
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stored_async_stop = None
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async def mock_monitor_loop():
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nonlocal stored_loop, stored_async_stop
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async_stop = asyncio.Event()
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loop = asyncio.get_running_loop()
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# Store refs for "stop()" to access
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stored_loop = loop
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stored_async_stop = async_stop
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async_stop_triggered.set() # Signal refs are ready
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# Wait for stop signal
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await async_stop.wait()
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def run_async():
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try:
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asyncio.run(mock_monitor_loop())
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except Exception:
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pass
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thread_exited.set()
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# Start monitor thread
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thread = threading.Thread(target=run_async, daemon=True)
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thread.start()
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# Wait for async loop to be ready
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async_stop_triggered.wait(timeout=2.0)
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assert stored_loop is not None
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# Measure shutdown time
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start = time.time()
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# Simulate stop() calling call_soon_threadsafe
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stop_event.set()
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stored_loop.call_soon_threadsafe(stored_async_stop.set)
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# Wait for thread to exit
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thread_exited.wait(timeout=2.0)
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shutdown_time = time.time() - start
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# Shutdown should be fast (< 500ms vs old 5000ms max)
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assert shutdown_time < 0.5, f"Shutdown took {shutdown_time}s, should be < 0.5s"
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def test_stop_waits_for_threads_with_timeout(self, mock_gatt_server):
|
|
"""Test that stop() waits for threads with reasonable timeouts."""
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|
# Create mock threads
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|
mock_server_thread = Mock()
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|
mock_server_thread.is_alive = Mock(return_value=True)
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|
mock_server_thread.join = Mock()
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|
|
|
mock_monitor_thread = Mock()
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|
mock_monitor_thread.is_alive = Mock(return_value=True)
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|
mock_monitor_thread.join = Mock()
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|
|
|
mock_poll_thread = Mock()
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|
mock_poll_thread.is_alive = Mock(return_value=True)
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|
mock_poll_thread.join = Mock()
|
|
|
|
# Simulate stop() thread joins
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|
mock_gatt_server.server_thread = mock_server_thread
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|
mock_gatt_server.disconnect_monitor_thread = mock_monitor_thread
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|
mock_gatt_server.stale_poll_thread = mock_poll_thread
|
|
|
|
# Verify join is called with appropriate timeouts
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|
if mock_gatt_server.server_thread and mock_gatt_server.server_thread.is_alive():
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|
mock_gatt_server.server_thread.join(timeout=5.0)
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|
|
|
if mock_gatt_server.disconnect_monitor_thread and mock_gatt_server.disconnect_monitor_thread.is_alive():
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|
mock_gatt_server.disconnect_monitor_thread.join(timeout=2.0)
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|
|
|
if mock_gatt_server.stale_poll_thread and mock_gatt_server.stale_poll_thread.is_alive():
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|
mock_gatt_server.stale_poll_thread.join(timeout=2.0)
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|
|
|
# Verify joins were called with timeouts
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|
mock_server_thread.join.assert_called_once_with(timeout=5.0)
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|
mock_monitor_thread.join.assert_called_once_with(timeout=2.0)
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|
mock_poll_thread.join.assert_called_once_with(timeout=2.0)
|
|
|
|
|
|
class TestIntegrationScenarios:
|
|
"""Integration tests for HCI error fix scenarios."""
|
|
|
|
def test_full_lifecycle_start_to_stop(self):
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|
"""Test complete lifecycle with event-driven monitoring."""
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|
stop_event = threading.Event()
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|
monitor_started = threading.Event()
|
|
monitor_stopped = threading.Event()
|
|
|
|
stored_loop = None
|
|
stored_async_stop = None
|
|
|
|
async def mock_monitor():
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|
nonlocal stored_loop, stored_async_stop
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|
async_stop = asyncio.Event()
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|
loop = asyncio.get_running_loop()
|
|
|
|
stored_loop = loop
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|
stored_async_stop = async_stop
|
|
|
|
monitor_started.set()
|
|
|
|
# Event-driven wait (not polling)
|
|
await async_stop.wait()
|
|
|
|
def run_monitor():
|
|
try:
|
|
asyncio.run(mock_monitor())
|
|
except Exception:
|
|
pass
|
|
monitor_stopped.set()
|
|
|
|
# Start monitoring
|
|
thread = threading.Thread(target=run_monitor, daemon=True)
|
|
thread.start()
|
|
|
|
# Wait for start
|
|
monitor_started.wait(timeout=2.0)
|
|
assert stored_loop is not None
|
|
assert stored_async_stop is not None
|
|
|
|
# Simulate stop()
|
|
stop_event.set()
|
|
stored_loop.call_soon_threadsafe(stored_async_stop.set)
|
|
|
|
# Wait for clean shutdown
|
|
monitor_stopped.wait(timeout=2.0)
|
|
thread.join(timeout=1.0)
|
|
|
|
assert not thread.is_alive()
|
|
assert monitor_stopped.is_set()
|
|
|
|
def test_multiple_stop_calls_safe(self):
|
|
"""Test that multiple stop() calls don't cause issues."""
|
|
stop_event = threading.Event()
|
|
|
|
# First stop
|
|
stop_event.set()
|
|
assert stop_event.is_set()
|
|
|
|
# Second stop (should be safe)
|
|
stop_event.set()
|
|
assert stop_event.is_set()
|
|
|
|
# Clear and set again (simulating restart + stop)
|
|
stop_event.clear()
|
|
assert not stop_event.is_set()
|
|
stop_event.set()
|
|
assert stop_event.is_set()
|
|
|
|
def test_dbus_signals_still_processed_during_wait(self):
|
|
"""Test that D-Bus signals are processed while waiting for stop."""
|
|
async def async_test():
|
|
async_stop = asyncio.Event()
|
|
signal_received = False
|
|
|
|
def handle_signal():
|
|
nonlocal signal_received
|
|
signal_received = True
|
|
|
|
# Start wait task
|
|
wait_task = asyncio.create_task(async_stop.wait())
|
|
|
|
# Simulate D-Bus signal (would be scheduled via event loop)
|
|
await asyncio.sleep(0.01)
|
|
handle_signal() # Signal handler runs
|
|
|
|
# Verify signal was processed
|
|
assert signal_received
|
|
|
|
# Stop wait
|
|
async_stop.set()
|
|
await wait_task
|
|
|
|
asyncio.run(async_test())
|
|
|
|
|
|
class TestNoPollingVerification:
|
|
"""Verify that no polling patterns exist in the fixes."""
|
|
|
|
def test_no_05_second_sleep_in_monitor(self):
|
|
"""Verify the old 0.5s sleep pattern is not used in D-Bus monitor."""
|
|
# The old pattern was:
|
|
# await asyncio.sleep(0.5) # BAD
|
|
|
|
# New pattern:
|
|
# await async_stop.wait() # GOOD
|
|
|
|
# This test verifies the concept
|
|
async def no_polling_pattern():
|
|
async_stop = asyncio.Event()
|
|
# No periodic sleep!
|
|
async_stop.set() # Immediately set for test
|
|
await async_stop.wait()
|
|
|
|
# Should complete without any sleep delays
|
|
start = time.time()
|
|
asyncio.run(no_polling_pattern())
|
|
elapsed = time.time() - start
|
|
|
|
# Should complete in < 100ms (no 500ms sleeps)
|
|
assert elapsed < 0.1
|
|
|
|
def test_no_busy_loop_in_stale_poll(self):
|
|
"""Verify the old busy-loop pattern is not used in stale poll."""
|
|
stop_event = threading.Event()
|
|
iterations = 0
|
|
|
|
# Old pattern (BAD):
|
|
# for _ in range(240): # 240 * 0.5s = 120s
|
|
# if self.stop_event.is_set():
|
|
# break
|
|
# time.sleep(0.5)
|
|
|
|
# New pattern (GOOD):
|
|
def new_pattern():
|
|
nonlocal iterations
|
|
if stop_event.wait(timeout=0.01): # Short timeout for test
|
|
return True
|
|
iterations += 1
|
|
return False
|
|
|
|
# Run the new pattern
|
|
new_pattern()
|
|
|
|
# Should only have 1 iteration (the wait call itself)
|
|
assert iterations == 1
|
|
|
|
|
|
class TestCodeVerification:
|
|
"""Tests that verify the actual implementation has correct patterns."""
|
|
|
|
def test_verify_poll_interval_in_code(self):
|
|
"""Verify that the actual code uses 300s poll interval."""
|
|
import re
|
|
|
|
# Read the actual source file
|
|
source_path = os.path.join(
|
|
os.path.dirname(__file__),
|
|
'../src/RNS/Interfaces/linux_bluetooth_driver.py'
|
|
)
|
|
|
|
with open(source_path, 'r') as f:
|
|
source = f.read()
|
|
|
|
# Find the poll_stale_connections method and verify it uses 300.0 timeout
|
|
# Pattern: stop_event.wait(timeout=300.0)
|
|
poll_pattern = r'self\.stop_event\.wait\(timeout=(\d+\.?\d*)\)'
|
|
matches = re.findall(poll_pattern, source)
|
|
|
|
assert '300.0' in matches, f"Expected 300.0 second timeout, found: {matches}"
|
|
|
|
def test_verify_event_driven_wait_in_code(self):
|
|
"""Verify that the actual code uses async_stop.wait() not polling."""
|
|
import re
|
|
|
|
source_path = os.path.join(
|
|
os.path.dirname(__file__),
|
|
'../src/RNS/Interfaces/linux_bluetooth_driver.py'
|
|
)
|
|
|
|
with open(source_path, 'r') as f:
|
|
source = f.read()
|
|
|
|
# The code should have: await async_stop.wait()
|
|
assert 'await async_stop.wait()' in source, "Should use event-driven wait"
|
|
|
|
# The code should NOT have the old polling pattern in the monitor loop
|
|
# Look for the monitor_loop function and check it doesn't have asyncio.sleep polling
|
|
monitor_section_match = re.search(
|
|
r'async def monitor_loop\(\):(.*?)(?=\n def |\n async def |\Z)',
|
|
source,
|
|
re.DOTALL
|
|
)
|
|
|
|
if monitor_section_match:
|
|
monitor_section = monitor_section_match.group(1)
|
|
# Should not have: while not stop_event... asyncio.sleep pattern
|
|
polling_pattern = r'while.*stop_event.*\n.*asyncio\.sleep\(0\.5\)'
|
|
assert not re.search(polling_pattern, monitor_section), \
|
|
"Monitor loop should not use 0.5s polling pattern"
|
|
|
|
def test_verify_call_soon_threadsafe_in_stop(self):
|
|
"""Verify that stop() uses call_soon_threadsafe."""
|
|
source_path = os.path.join(
|
|
os.path.dirname(__file__),
|
|
'../src/RNS/Interfaces/linux_bluetooth_driver.py'
|
|
)
|
|
|
|
with open(source_path, 'r') as f:
|
|
source = f.read()
|
|
|
|
# The stop() method should use call_soon_threadsafe
|
|
assert 'call_soon_threadsafe' in source, "stop() should use call_soon_threadsafe"
|
|
assert '_async_stop_event.set' in source, "Should signal async stop event"
|
|
|
|
|
|
if __name__ == "__main__":
|
|
pytest.main([__file__, "-v"])
|