Files
voculinux/tests/test_capture_recovery.py
T
e66bd218d9 fix(audio): prevent dictation hangs on stalled microphones (#974)
* fix(audio): bound capture reads and support cancellation

* fix(recognition): bound and serialize capture shutdown

* fix(recognition): cancel retries and report stalled microphones

* fix(audio): prefer pulse when the ALSA default is unavailable

* fix(recognition): guard late callbacks and finalize capture tests

* docs(audio): explain input selection and stall recovery

* fix(speech): enforce auto-pause across buffered reload timeouts

* fix(speech): recover auto-resume after reload timeout

* test(speech): fix auto-pause follow-up test regressions

* fix(speech): retain auto-resume after reconfigure timeout

* fix(tray): preserve auto-pause recovery across suspend

* test(capture-shutdown): give the bare tray the suspend path's shortcut managers

_on_system_suspend now releases the main and per-language hotkey
listeners before sleep (#1025); the fixture builds TrayIndicator without
__init__, so it needs the two attributes present.

* fix(tray): release hotkey listeners on suspend even while auto-paused

Merging #1025's suspend cleanup with this branch's auto-pause handoff
left an early return that skipped shortcut_manager.stop() whenever a
configured game was active, keeping EVIOCGRABs held through sleep. The
paused branch now only owns the model-lifecycle work; listener release
and stopping active recognition run for every suspend.

* fix(tray): hold the apply lock only around the download's verify and save

Wrapping the whole recommended-model download in _apply_settings_lock
blocked every GTK-thread settings apply (e.g. Test Dictation) for the
length of the transfer. The engine already serializes reconfigures, so
the lock only needs to cover verifying the download still owns the
receipt and saving it; an apply that lands mid-download now proceeds
instead of freezing the app.

---------

Co-authored-by: Jatin K Malik <jatinkrmalik@gmail.com>
2026-10-26 21:25:50 -07:00

388 lines
14 KiB
Python

"""Capture recovery must honor stop and leave failed dictation restartable."""
import sys
import threading
from collections.abc import Generator
from typing import Callable
from unittest.mock import Mock
import pytest
from vocalinux.audio import capture
from vocalinux.common_types import RecognitionState
from vocalinux.speech_recognition import recognition_manager as rm
@pytest.fixture
def manager(monkeypatch: pytest.MonkeyPatch) -> Generator[rm.SpeechRecognitionManager, None, None]:
monkeypatch.setattr(rm.SpeechRecognitionManager, "_init_vosk", lambda self: None)
monkeypatch.setattr(rm, "load_silero_vad", lambda: None)
monkeypatch.setitem(sys.modules, "numpy", sys._vocalinux_real_numpy)
for name in ("play_start_sound", "play_stop_sound", "play_error_sound"):
monkeypatch.setattr(rm, name, Mock())
# Close this patch before the autouse notification patch exits.
with monkeypatch.context() as patcher:
patcher.setattr(rm, "_show_notification", Mock())
instance = rm.SpeechRecognitionManager(engine="vosk")
instance.model = object()
instance._model_initialized = True
instance._reconnection_delay = 0
instance.stop_sound_guard_ms = 0
yield instance
instance._session.cancel.set()
if instance.should_record:
instance.stop_recognition()
for worker in (instance.audio_thread, instance.recognition_thread):
if worker is not None:
worker.join(2)
assert not worker.is_alive()
@pytest.fixture
def source(manager: rm.SpeechRecognitionManager, monkeypatch: pytest.MonkeyPatch) -> Mock:
source = Mock(
requires_pyaudio=False,
sample_rate=16000,
channels=1,
audio=None,
resolved_device_name="Webcam (hw:1,0)",
last_error=None,
)
source.reopen.return_value = False
monkeypatch.setattr(manager, "_new_capture_source", lambda: source)
manager.should_record = True
manager.state = RecognitionState.LISTENING
return source
@pytest.mark.parametrize("entry", ["open", "read_chunk"])
def test_stop_after_failure_prevents_recovery_and_error_reporting(
manager: rm.SpeechRecognitionManager, source: Mock, entry: str
) -> None:
def fail_after_stop(*_args: object, **_kwargs: object) -> None:
manager.stop_recognition()
raise capture.CaptureStalledError("stopped device")
getattr(source, entry).side_effect = fail_after_stop
manager._record_audio()
source.reopen.assert_not_called()
source.close.assert_called_once()
rm.play_error_sound.assert_not_called()
rm._show_notification.assert_not_called()
assert manager.state == RecognitionState.IDLE
def test_stop_interrupts_backoff_before_reopen(
manager: rm.SpeechRecognitionManager, source: Mock, monkeypatch: pytest.MonkeyPatch
) -> None:
manager._capture_source = source
manager._reconnection_delay = 60
entered = threading.Event()
wait = manager._session.cancel.wait
results = []
def backoff(seconds: float) -> bool:
entered.set()
return wait(seconds)
monkeypatch.setattr(manager._session.cancel, "wait", backoff)
worker = threading.Thread(
target=lambda: results.append(
manager._attempt_audio_reconnection(None, should_continue=lambda: manager.should_record)
)
)
worker.start()
try:
assert entered.wait(1)
manager.stop_recognition()
finally:
manager._session.cancel.set()
worker.join(1)
assert not worker.is_alive()
assert results == [False]
source.reopen.assert_not_called()
def test_cancellation_after_backoff_prevents_reopen(
manager: rm.SpeechRecognitionManager, source: Mock, monkeypatch: pytest.MonkeyPatch
) -> None:
manager._capture_source = source
def backoff(_seconds: float) -> bool:
manager.should_record = False
return False
monkeypatch.setattr(manager._session.cancel, "wait", backoff)
assert not manager._attempt_audio_reconnection(
None, should_continue=lambda: manager.should_record
)
source.reopen.assert_not_called()
def test_cancellation_after_validation_prevents_capture_state_publication(
manager: rm.SpeechRecognitionManager, source: Mock, monkeypatch: pytest.MonkeyPatch
) -> None:
manager._capture_source = source
sync = Mock()
monkeypatch.setattr(manager, "_sync_capture_state", sync)
def reopen(_audio: object, should_continue: Callable[[], bool]) -> bool:
assert should_continue()
manager.should_record = False
return True
source.reopen.side_effect = reopen
assert not manager._attempt_audio_reconnection(
None, should_continue=lambda: manager.should_record
)
sync.assert_not_called()
@pytest.mark.parametrize("entry", ["open", "read_chunk"])
def test_only_one_stall_recovery_and_original_device_is_reported(
manager: rm.SpeechRecognitionManager, source: Mock, caplog: pytest.LogCaptureFixture, entry: str
) -> None:
errors = iter(
[capture.CaptureStalledError("first stall"), capture.CaptureStalledError("again")]
)
states = []
closed_on = []
timeline = []
manager.state_callbacks.append(states.append)
def read(**_kwargs: object) -> bytes:
manager._last_audio_error_time = 0 # Exercise the limit, not the time throttle.
raise next(errors)
if entry == "open":
def fail_open(_audio: object) -> None:
raise next(errors)
source.open.side_effect = fail_open
source.read_chunk.side_effect = read
source.reopen.return_value = True
def close() -> None:
closed_on.append(threading.current_thread())
timeline.append("closed")
source.close.side_effect = close
rm.play_error_sound.side_effect = lambda: timeline.append("error cue")
manager._record_audio()
assert timeline == ["closed", "error cue"]
source.reopen.assert_called_once()
assert closed_on == [threading.current_thread()]
rm.play_error_sound.assert_called_once()
rm.play_stop_sound.assert_not_called()
rm._show_notification.assert_called_once()
notification = rm._show_notification.call_args.args
assert notification[0] == "Microphone Stalled"
assert "Webcam (hw:1,0)" in notification[1] and "Settings" in notification[1]
assert any(
record.levelname == "ERROR"
and "first stall" in record.message
and "Webcam (hw:1,0)" in record.message
for record in caplog.records
)
assert RecognitionState.ERROR in states
assert states[-1] == RecognitionState.IDLE
assert not manager.should_record
@pytest.mark.parametrize("initial_stall", [False, True])
def test_validation_stall_preserves_cause_and_resolved_device(
manager: rm.SpeechRecognitionManager,
monkeypatch: pytest.MonkeyPatch,
initial_stall: bool,
caplog: pytest.LogCaptureFixture,
) -> None:
source = capture.PortAudioCaptureSource()
audio = Mock()
audio.get_device_count.return_value = 0
audio.get_default_input_device_info.return_value = {"index": 9, "name": "Original microphone"}
first_stream = Mock()
stream = Mock()
monkeypatch.setitem(sys.modules, "pyaudio", Mock(PyAudio=lambda: audio, paInt16=8))
monkeypatch.setattr(manager, "_new_capture_source", lambda: source)
monkeypatch.setattr(
capture,
"_open_capture_stream",
Mock(side_effect=[(1, 16000, first_stream), (1, 16000, stream)]),
)
first_error = (
capture.CaptureStalledError("original stall") if initial_stall else OSError("lost")
)
validation_error = capture.CaptureStalledError("validation stall")
def read(**_kwargs: object) -> bytes:
audio.get_default_input_device_info.return_value = {"index": 5, "name": "Changed default"}
raise first_error
def validate(*_args: object, **_kwargs: object) -> bytes:
raise validation_error
monkeypatch.setattr(source, "read_chunk", read)
monkeypatch.setattr(capture, "_read_frames_bounded", validate)
manager.should_record = True
manager.state = RecognitionState.LISTENING
manager._record_audio()
assert manager._session.stall_error is (first_error if initial_stall else validation_error)
assert source.last_error is validation_error
first_stream.close.assert_called_once()
audio.terminate.assert_called_once()
assert "Original microphone" in rm._show_notification.call_args.args[1]
assert "original stall" in caplog.text if initial_stall else "validation stall" in caplog.text
assert manager.state == RecognitionState.IDLE
stream.close.assert_called_once()
def test_real_validation_honors_stop_without_error_cue(
manager: rm.SpeechRecognitionManager, monkeypatch: pytest.MonkeyPatch
) -> None:
source = capture.PortAudioCaptureSource()
stream = Mock()
audio = Mock()
audio.get_default_input_device_info.return_value = {"name": "Microphone"}
monkeypatch.setitem(sys.modules, "pyaudio", Mock(PyAudio=lambda: audio, paInt16=8))
monkeypatch.setattr(source, "open", lambda _audio: None)
monkeypatch.setattr(
source, "read_chunk", Mock(side_effect=capture.CaptureStalledError("stalled"))
)
monkeypatch.setattr(manager, "_new_capture_source", lambda: source)
monkeypatch.setattr(capture, "_open_capture_stream", lambda *_args: (1, 16000, stream))
def validate(*_args: object, should_continue: Callable[[], bool]) -> bytes:
assert should_continue()
manager.stop_recognition()
assert not should_continue()
return b"validation data"
monkeypatch.setattr(capture, "_read_frames_bounded", validate)
manager.should_record = True
manager.state = RecognitionState.LISTENING
manager._record_audio()
rm.play_error_sound.assert_not_called()
rm._show_notification.assert_not_called()
stream.close.assert_called_once()
assert manager.state == RecognitionState.IDLE
def test_failed_buffered_reload_reports_once_and_subsequent_dictation_succeeds(
manager: rm.SpeechRecognitionManager, source: Mock, monkeypatch: pytest.MonkeyPatch
) -> None:
manager.should_record = False
manager.state = RecognitionState.IDLE
manager._idle_unloaded = True
manager._model_initialized = False
manager.buffer_during_reload = True
loading = threading.Event()
release = threading.Event()
failed = threading.Event()
source.read_chunk.side_effect = capture.CaptureStalledError("stalled")
def load() -> None:
loading.set()
assert release.wait(2)
manager._model_initialized = True
monkeypatch.setattr(manager, "_init_selected_engine", load)
manager.state_callbacks.append(
lambda state: failed.set() if state == RecognitionState.ERROR else None
)
assert manager.start_recognition()
try:
assert loading.wait(1) and failed.wait(1)
finally:
release.set()
manager.audio_thread.join(2)
manager.recognition_thread.join(2)
assert manager.state == RecognitionState.IDLE
assert not manager._buffered_reload_session
rm.play_error_sound.assert_called_once()
rm._show_notification.assert_called_once()
source.read_chunk.side_effect = None
source.read_chunk.return_value = b"\xe8\x03" * 1024
transcribed = []
monkeypatch.setattr(
manager, "_process_audio_buffer", lambda audio, language: transcribed.append(audio)
)
manager._audio_level_callbacks.append(lambda _level: manager.stop_recognition())
assert manager.start_recognition()
manager.audio_thread.join(2)
manager.recognition_thread.join(2)
assert manager.state == RecognitionState.IDLE
assert len(transcribed) == 1
@pytest.mark.parametrize("reconnecting", [False, True])
def test_stop_during_audio_initialization_keeps_teardown_owned(
manager: rm.SpeechRecognitionManager, monkeypatch: pytest.MonkeyPatch, reconnecting: bool
) -> None:
source = capture.PortAudioCaptureSource()
audio = Mock()
open_stream = Mock()
monkeypatch.setattr(source, "open", open_stream)
monkeypatch.setattr(source, "reopen", open_stream)
monkeypatch.setattr(manager, "_new_capture_source", lambda: source)
manager.should_record = True
manager.state = RecognitionState.LISTENING
def create_audio() -> Mock:
manager.stop_recognition()
return audio
monkeypatch.setitem(sys.modules, "pyaudio", Mock(PyAudio=create_audio))
if reconnecting:
manager._capture_source = source
assert not manager._attempt_audio_reconnection(None)
source.close() # The caller remains responsible for owner-thread teardown.
else:
manager._record_audio()
open_stream.assert_not_called()
audio.terminate.assert_called_once()
rm.play_error_sound.assert_not_called()
def test_successful_reopen_updates_identity_for_a_later_stall(
manager: rm.SpeechRecognitionManager, monkeypatch: pytest.MonkeyPatch
) -> None:
source = capture.PortAudioCaptureSource()
audio = Mock()
audio.get_device_count.return_value = 0
audio.get_default_input_device_info.return_value = {"index": 2, "name": "Old microphone"}
monkeypatch.setitem(sys.modules, "pyaudio", Mock(PyAudio=lambda: audio, paInt16=8))
monkeypatch.setattr(manager, "_new_capture_source", lambda: source)
streams = [Mock(), Mock(), Mock()]
monkeypatch.setattr(
capture,
"_open_capture_stream",
Mock(side_effect=[(1, 16000, stream) for stream in streams]),
)
monkeypatch.setattr(
capture,
"_read_frames_bounded",
Mock(side_effect=[b"valid samples", OSError("validation failed")]),
)
failures = iter([OSError("old device lost"), capture.CaptureStalledError("new device stalled")])
def read(**_kwargs: object) -> bytes:
audio.get_default_input_device_info.return_value = {"index": 7, "name": "New microphone"}
manager._last_audio_error_time = 0
raise next(failures)
monkeypatch.setattr(source, "read_chunk", read)
manager.should_record = True
manager.state = RecognitionState.LISTENING
manager._record_audio()
notification = rm._show_notification.call_args.args[1]
assert "New microphone" in notification
assert "Old microphone" not in notification
assert source.resolved_device_name == "New microphone"
assert str(manager._session.stall_error) == "new device stalled"
assert manager.state == RecognitionState.IDLE
for stream in streams:
stream.close.assert_called_once()
audio.terminate.assert_called_once()