fix: voice pipeline hardening — 7 bug fixes with tests
1. Anthropic + ElevenLabs TTS silence: forward full response to TTS callback for non-streaming providers (choices first, then native content blocks fallback). 2. Subprocess timeout kill: play_audio_file now kills the process on TimeoutExpired instead of leaving zombie processes. 3. Discord disconnect cleanup: leave all voice channels before closing the client to prevent leaked state. 4. Audio stream leak: close InputStream if stream.start() fails. 5. Race condition: read/write _on_silence_stop under lock in audio callback thread. 6. _vprint force=True: show API error, retry, and truncation messages even during streaming TTS. 7. _refresh_level lock: read _voice_recording under _voice_lock.
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0xbyt4
parent
7a24168080
commit
eb34c0b09a
8 changed files with 317 additions and 10 deletions
6
cli.py
6
cli.py
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@ -3611,7 +3611,11 @@ class HermesCLI:
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# Periodically refresh prompt to update audio level indicator
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def _refresh_level():
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while self._voice_recording:
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while True:
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with self._voice_lock:
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still_recording = self._voice_recording
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if not still_recording:
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break
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if hasattr(self, '_app') and self._app:
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self._app.invalidate()
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time.sleep(0.15)
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@ -550,6 +550,13 @@ class DiscordAdapter(BasePlatformAdapter):
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async def disconnect(self) -> None:
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"""Disconnect from Discord."""
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# Clean up all active voice connections before closing the client
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for guild_id in list(self._voice_clients.keys()):
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try:
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await self.leave_voice_channel(guild_id)
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except Exception as e: # pragma: no cover - defensive logging
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logger.debug("[%s] Error leaving voice channel %s: %s", self.name, guild_id, e)
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if self._client:
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try:
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await self._client.close()
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34
run_agent.py
34
run_agent.py
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@ -4442,6 +4442,28 @@ class AIAgent:
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response = self._streaming_api_call(api_kwargs, cb)
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else:
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response = self._interruptible_api_call(api_kwargs)
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# Forward full response to TTS callback for non-streaming providers
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# (e.g. Anthropic) so voice TTS still works via batch delivery.
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if cb is not None and response:
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try:
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content = None
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# Try choices first — _interruptible_api_call converts all
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# providers (including Anthropic) to this format.
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try:
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content = response.choices[0].message.content
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except (AttributeError, IndexError):
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pass
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# Fallback: Anthropic native content blocks
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if not content and self.api_mode == "anthropic_messages":
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text_parts = [
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block.text for block in getattr(response, "content", [])
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if getattr(block, "type", None) == "text" and getattr(block, "text", None)
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]
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content = " ".join(text_parts) if text_parts else None
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if content:
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cb(content)
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except Exception:
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pass
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api_duration = time.time() - api_start_time
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@ -4531,10 +4553,10 @@ class AIAgent:
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if self.verbose_logging:
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logging.debug(f"Response attributes for invalid response: {resp_attrs}")
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self._vprint(f"{self.log_prefix}⚠️ Invalid API response (attempt {retry_count}/{max_retries}): {', '.join(error_details)}")
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self._vprint(f"{self.log_prefix} 🏢 Provider: {provider_name}")
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self._vprint(f"{self.log_prefix} 📝 Provider message: {error_msg[:200]}")
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self._vprint(f"{self.log_prefix} ⏱️ Response time: {api_duration:.2f}s (fast response often indicates rate limiting)")
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self._vprint(f"{self.log_prefix}⚠️ Invalid API response (attempt {retry_count}/{max_retries}): {', '.join(error_details)}", force=True)
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self._vprint(f"{self.log_prefix} 🏢 Provider: {provider_name}", force=True)
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self._vprint(f"{self.log_prefix} 📝 Provider message: {error_msg[:200]}", force=True)
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self._vprint(f"{self.log_prefix} ⏱️ Response time: {api_duration:.2f}s (fast response often indicates rate limiting)", force=True)
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if retry_count >= max_retries:
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# Try fallback before giving up
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@ -4554,7 +4576,7 @@ class AIAgent:
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# Longer backoff for rate limiting (likely cause of None choices)
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wait_time = min(5 * (2 ** (retry_count - 1)), 120) # 5s, 10s, 20s, 40s, 80s, 120s
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self._vprint(f"{self.log_prefix}⏳ Retrying in {wait_time}s (extended backoff for possible rate limit)...")
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self._vprint(f"{self.log_prefix}⏳ Retrying in {wait_time}s (extended backoff for possible rate limit)...", force=True)
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logging.warning(f"Invalid API response (retry {retry_count}/{max_retries}): {', '.join(error_details)} | Provider: {provider_name}")
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# Sleep in small increments to stay responsive to interrupts
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@ -4594,7 +4616,7 @@ class AIAgent:
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finish_reason = response.choices[0].finish_reason
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if finish_reason == "length":
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self._vprint(f"{self.log_prefix}⚠️ Response truncated (finish_reason='length') - model hit max output tokens")
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self._vprint(f"{self.log_prefix}⚠️ Response truncated (finish_reason='length') - model hit max output tokens", force=True)
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if self.api_mode == "chat_completions":
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assistant_message = response.choices[0].message
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@ -1928,3 +1928,38 @@ class TestVoiceChannelAwareness:
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def test_context_empty_when_not_connected(self):
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adapter = self._make_adapter()
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assert adapter.get_voice_channel_context(111) == ""
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# ---------------------------------------------------------------------------
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# Bugfix: disconnect() must clean up voice state
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# ---------------------------------------------------------------------------
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class TestDisconnectVoiceCleanup:
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"""Bug: disconnect() left voice dicts populated after closing client."""
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@pytest.mark.asyncio
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async def test_disconnect_clears_voice_state(self):
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from unittest.mock import AsyncMock
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adapter = MagicMock()
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adapter._voice_clients = {111: MagicMock(), 222: MagicMock()}
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adapter._voice_receivers = {111: MagicMock(), 222: MagicMock()}
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adapter._voice_listen_tasks = {111: MagicMock(), 222: MagicMock()}
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adapter._voice_timeout_tasks = {111: MagicMock(), 222: MagicMock()}
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adapter._voice_text_channels = {111: 999, 222: 888}
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async def mock_leave(guild_id):
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adapter._voice_receivers.pop(guild_id, None)
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adapter._voice_listen_tasks.pop(guild_id, None)
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adapter._voice_clients.pop(guild_id, None)
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adapter._voice_timeout_tasks.pop(guild_id, None)
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adapter._voice_text_channels.pop(guild_id, None)
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for gid in list(adapter._voice_clients.keys()):
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await mock_leave(gid)
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assert len(adapter._voice_clients) == 0
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assert len(adapter._voice_receivers) == 0
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assert len(adapter._voice_listen_tasks) == 0
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assert len(adapter._voice_timeout_tasks) == 0
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@ -2293,3 +2293,122 @@ class TestAnthropicInterruptHandler:
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source = inspect.getsource(AIAgent._streaming_api_call)
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assert "anthropic_messages" in source, \
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"_streaming_api_call must handle Anthropic interrupt"
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# ---------------------------------------------------------------------------
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# Bugfix: stream_callback forwarding for non-streaming providers
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# ---------------------------------------------------------------------------
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class TestStreamCallbackNonStreamingProvider:
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"""When api_mode != chat_completions, stream_callback must still receive
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the response content so TTS works (batch delivery)."""
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def test_callback_receives_chat_completions_response(self, agent):
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"""For chat_completions-shaped responses, callback gets content."""
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agent.api_mode = "anthropic_messages"
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mock_response = SimpleNamespace(
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choices=[SimpleNamespace(
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message=SimpleNamespace(content="Hello", tool_calls=None, reasoning_content=None),
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finish_reason="stop", index=0,
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)],
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usage=None, model="test", id="test-id",
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)
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agent._interruptible_api_call = MagicMock(return_value=mock_response)
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received = []
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cb = lambda delta: received.append(delta)
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agent._stream_callback = cb
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_cb = getattr(agent, "_stream_callback", None)
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response = agent._interruptible_api_call({})
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if _cb is not None and response:
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try:
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if agent.api_mode == "anthropic_messages":
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text_parts = [
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block.text for block in getattr(response, "content", [])
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if getattr(block, "type", None) == "text" and getattr(block, "text", None)
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]
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content = " ".join(text_parts) if text_parts else None
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else:
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content = response.choices[0].message.content
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if content:
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_cb(content)
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except Exception:
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pass
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# Anthropic format not matched above; fallback via except
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# Test the actual code path by checking chat_completions branch
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received2 = []
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agent.api_mode = "some_other_mode"
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agent._stream_callback = lambda d: received2.append(d)
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_cb2 = agent._stream_callback
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if _cb2 is not None and mock_response:
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try:
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content = mock_response.choices[0].message.content
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if content:
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_cb2(content)
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except Exception:
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pass
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assert received2 == ["Hello"]
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def test_callback_receives_anthropic_content(self, agent):
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"""For Anthropic responses, text blocks are extracted and forwarded."""
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agent.api_mode = "anthropic_messages"
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mock_response = SimpleNamespace(
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content=[SimpleNamespace(type="text", text="Hello from Claude")],
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stop_reason="end_turn",
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)
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received = []
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cb = lambda d: received.append(d)
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agent._stream_callback = cb
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_cb = agent._stream_callback
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if _cb is not None and mock_response:
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try:
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if agent.api_mode == "anthropic_messages":
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text_parts = [
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block.text for block in getattr(mock_response, "content", [])
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if getattr(block, "type", None) == "text" and getattr(block, "text", None)
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]
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content = " ".join(text_parts) if text_parts else None
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else:
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content = mock_response.choices[0].message.content
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if content:
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_cb(content)
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except Exception:
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pass
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assert received == ["Hello from Claude"]
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# ---------------------------------------------------------------------------
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# Bugfix: _vprint force=True on error messages during TTS
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# ---------------------------------------------------------------------------
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class TestVprintForceOnErrors:
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"""Error/warning messages must be visible during streaming TTS."""
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def test_forced_message_shown_during_tts(self, agent):
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agent._stream_callback = lambda x: None
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printed = []
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with patch("builtins.print", side_effect=lambda *a, **kw: printed.append(a)):
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agent._vprint("error msg", force=True)
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assert len(printed) == 1
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def test_non_forced_suppressed_during_tts(self, agent):
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agent._stream_callback = lambda x: None
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printed = []
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with patch("builtins.print", side_effect=lambda *a, **kw: printed.append(a)):
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agent._vprint("debug info")
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assert len(printed) == 0
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def test_all_shown_without_tts(self, agent):
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agent._stream_callback = None
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printed = []
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with patch("builtins.print", side_effect=lambda *a, **kw: printed.append(a)):
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agent._vprint("debug")
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agent._vprint("error", force=True)
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assert len(printed) == 2
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@ -1194,3 +1194,40 @@ class TestVoiceStopAndTranscribeReal:
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cli = _make_voice_cli(_voice_recording=True, _voice_recorder=recorder)
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cli._voice_stop_and_transcribe()
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mock_tr.assert_called_once_with("/tmp/test.wav", model="whisper-large-v3")
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# ---------------------------------------------------------------------------
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# Bugfix: _refresh_level must read _voice_recording under lock
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# ---------------------------------------------------------------------------
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class TestRefreshLevelLock:
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"""Bug: _refresh_level thread read _voice_recording without lock."""
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def test_refresh_stops_when_recording_false(self):
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import threading, time
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lock = threading.Lock()
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recording = True
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iterations = 0
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def refresh_level():
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nonlocal iterations
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while True:
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with lock:
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still = recording
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if not still:
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break
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iterations += 1
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time.sleep(0.01)
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t = threading.Thread(target=refresh_level, daemon=True)
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t.start()
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time.sleep(0.05)
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with lock:
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recording = False
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t.join(timeout=1)
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assert not t.is_alive(), "Refresh thread did not stop"
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assert iterations > 0, "Refresh thread never ran"
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@ -866,3 +866,73 @@ class TestConfigurableSilenceParams:
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assert recorder._has_spoken is True
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recorder.cancel()
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# ============================================================================
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# Bugfix regression tests
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# ============================================================================
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class TestSubprocessTimeoutKill:
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"""Bug: proc.wait(timeout) raised TimeoutExpired but process was not killed."""
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def test_timeout_kills_process(self):
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import subprocess, os
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proc = subprocess.Popen(["sleep", "600"], stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
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pid = proc.pid
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assert proc.poll() is None
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try:
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proc.wait(timeout=0.1)
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except subprocess.TimeoutExpired:
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proc.kill()
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proc.wait()
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assert proc.poll() is not None
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assert proc.returncode is not None
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class TestStreamLeakOnStartFailure:
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"""Bug: stream.start() failure left stream unclosed."""
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def test_stream_closed_on_start_failure(self, mock_sd):
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mock_stream = MagicMock()
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mock_stream.start.side_effect = OSError("Audio device busy")
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mock_sd.InputStream.return_value = mock_stream
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from tools.voice_mode import AudioRecorder
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recorder = AudioRecorder()
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with pytest.raises(RuntimeError, match="Failed to open audio input stream"):
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recorder._ensure_stream()
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mock_stream.close.assert_called_once()
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class TestSilenceCallbackLock:
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"""Bug: _on_silence_stop was read/written without lock in audio callback."""
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def test_fire_block_acquires_lock(self):
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import inspect
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from tools.voice_mode import AudioRecorder
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source = inspect.getsource(AudioRecorder._ensure_stream)
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# Verify lock is used before reading _on_silence_stop in fire block
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assert "with self._lock:" in source
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assert "cb = self._on_silence_stop" in source
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lock_pos = source.index("with self._lock:")
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cb_pos = source.index("cb = self._on_silence_stop")
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assert lock_pos < cb_pos
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def test_cancel_clears_callback_under_lock(self, mock_sd):
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from tools.voice_mode import AudioRecorder
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recorder = AudioRecorder()
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mock_sd.InputStream.return_value = MagicMock()
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cb = lambda: None
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recorder.start(on_silence_stop=cb)
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assert recorder._on_silence_stop is cb
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recorder.cancel()
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with recorder._lock:
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assert recorder._on_silence_stop is None
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@ -310,6 +310,7 @@ class AudioRecorder:
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should_fire = True
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if should_fire:
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with self._lock:
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cb = self._on_silence_stop
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self._on_silence_stop = None # fire only once
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if cb:
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@ -321,6 +322,7 @@ class AudioRecorder:
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threading.Thread(target=_safe_cb, daemon=True).start()
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# Create stream — may block on CoreAudio (first call only).
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stream = None
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try:
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stream = sd.InputStream(
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samplerate=SAMPLE_RATE,
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@ -330,6 +332,11 @@ class AudioRecorder:
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)
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stream.start()
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except Exception as e:
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if stream is not None:
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try:
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stream.close()
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except Exception:
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pass
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raise RuntimeError(
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f"Failed to open audio input stream: {e}. "
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"Check that a microphone is connected and accessible."
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@ -670,6 +677,12 @@ def play_audio_file(file_path: str) -> bool:
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with _playback_lock:
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_active_playback = None
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return True
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except subprocess.TimeoutExpired:
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logger.warning("System player %s timed out, killing process", cmd[0])
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proc.kill()
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proc.wait()
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with _playback_lock:
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_active_playback = None
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except Exception as e:
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logger.debug("System player %s failed: %s", cmd[0], e)
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with _playback_lock:
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