"""Tests for the Weixin platform adapter.""" import asyncio import base64 import json import os from unittest.mock import AsyncMock, Mock, patch import pytest from gateway.config import PlatformConfig from gateway.config import GatewayConfig, HomeChannel, Platform, _apply_env_overrides from gateway.platforms.base import SendResult from gateway.platforms.base import MessageEvent, MessageType from gateway.platforms import weixin from gateway.platforms.weixin import ContextTokenStore, WeixinAdapter from tools.send_message_tool import _parse_target_ref, _send_to_platform def _make_adapter() -> WeixinAdapter: return WeixinAdapter( PlatformConfig( enabled=True, token="test-token", extra={"account_id": "test-account"}, ) ) class TestWeixinInboundVoiceTranscript: def test_voice_transcript_keeps_voice_origin_marker(self): item_list = [ { "type": weixin.ITEM_VOICE, "voice_item": {"text": "帮我查一下今天天气"}, } ] assert weixin._extract_text(item_list) == ( "[Voice transcription provided by Weixin]\n" "帮我查一下今天天气" ) class TestWeixinFormatting: def test_format_message_preserves_markdown_tables(self): adapter = _make_adapter() content = ( "| Setting | Value |\n" "| --- | --- |\n" "| Timeout | 30s |\n" "| Retries | 3 |\n" ) assert adapter.format_message(content) == content.strip() def test_format_message_wraps_long_plain_lines_for_copying(self): adapter = _make_adapter() content = ( "Here is a long issue template line with many copyable fields " + " ".join(f"field_{idx}=value_{idx}" for idx in range(24)) ) formatted = adapter.format_message(content) assert "\n" in formatted assert all(len(line) <= weixin.WEIXIN_COPY_LINE_WIDTH for line in formatted.splitlines()) assert " ".join(formatted.split()) == " ".join(content.split()) class TestWeixinChunking: def test_split_text_keeps_four_line_structured_blocks_together(self): adapter = _make_adapter() content = adapter.format_message( "今天结论：\n" "- 留存下降 3%\n" "- 转化上涨 8%\n" "- 主要问题在首日激活" ) chunks = adapter._split_text(content) assert chunks == ["今天结论：\n- 留存下降 3%\n- 转化上涨 8%\n- 主要问题在首日激活"] def test_split_text_keeps_complete_code_block_together_when_possible(self): adapter = _make_adapter() adapter.MAX_MESSAGE_LENGTH = 80 content = adapter.format_message( "## Intro\n\nShort paragraph.\n\n```python\nprint('hello world')\nprint('again')\n```\n\nTail paragraph." ) chunks = adapter._split_text(content) assert len(chunks) >= 2 assert any( "```python\nprint('hello world')\nprint('again')\n```" in chunk for chunk in chunks ) assert all(chunk.count("```") % 2 == 0 for chunk in chunks) def test_split_text_can_restore_legacy_multiline_splitting_via_config(self): adapter = WeixinAdapter( PlatformConfig( enabled=True, extra={ "account_id": "acct", "token": "***", "split_multiline_messages": True, }, ) ) content = adapter.format_message("第一行\n第二行\n第三行") chunks = adapter._split_text(content) assert chunks == ["第一行", "第二行", "第三行"] class TestWeixinConfig: def test_get_connected_platforms_includes_weixin_with_token(self): config = GatewayConfig( platforms={ Platform.WEIXIN: PlatformConfig( enabled=True, token="bot-token", extra={"account_id": "bot-account"}, ) } ) assert config.get_connected_platforms() == [Platform.WEIXIN] class TestWeixinStatePersistence: def test_save_weixin_account_preserves_existing_file_on_replace_failure(self, tmp_path, monkeypatch): account_path = tmp_path / "weixin" / "accounts" / "acct.json" account_path.parent.mkdir(parents=True, exist_ok=True) original = {"token": "old-token", "base_url": "https://old.example.com"} account_path.write_text(json.dumps(original), encoding="utf-8") def _boom(_src, _dst): raise OSError("disk full") monkeypatch.setattr("utils.os.replace", _boom) try: weixin.save_weixin_account( str(tmp_path), account_id="acct", token="new-token", base_url="https://new.example.com", user_id="wxid_new", ) except OSError: pass else: raise AssertionError("expected save_weixin_account to propagate replace failure") assert json.loads(account_path.read_text(encoding="utf-8")) == original class TestWeixinQrLogin: @pytest.mark.asyncio async def test_qr_login_timeout_uses_monotonic_clock(self, tmp_path): first_qr = { "qrcode": "qr-1", "qrcode_img_content": "https://example.com/qr-1", } pending = {"status": "wait"} with patch("gateway.platforms.weixin._api_get", new_callable=AsyncMock) as api_get_mock, \ patch("gateway.platforms.weixin.time") as mock_time, \ patch("gateway.platforms.weixin.AIOHTTP_AVAILABLE", True), \ patch("gateway.platforms.weixin.aiohttp.ClientSession", create=True) as session_cls, \ patch("builtins.print"): api_get_mock.side_effect = [first_qr, pending] mock_time.monotonic.side_effect = [1000, 1000.2, 1001.1] mock_time.time.side_effect = [1000, 900, 901, 902] session = AsyncMock() session.__aenter__.return_value = session session.__aexit__.return_value = False session_cls.return_value = session result = await weixin.qr_login(str(tmp_path), timeout_seconds=1) assert result is None assert api_get_mock.await_count == 2 class TestWeixinSendMessageIntegration: def test_parse_target_ref_accepts_weixin_ids(self): assert _parse_target_ref("weixin", "wxid_test123") == ("wxid_test123", None, True) assert _parse_target_ref("weixin", "filehelper") == ("filehelper", None, True) assert _parse_target_ref("weixin", "group@chatroom") == ("group@chatroom", None, True) class TestWeixinChunkDelivery: def _connected_adapter(self) -> WeixinAdapter: adapter = _make_adapter() adapter._session = object() adapter._send_session = adapter._session adapter._token = "test-token" adapter._base_url = "https://weixin.example.com" adapter._token_store.get = lambda account_id, chat_id: "ctx-token" return adapter @patch("gateway.platforms.weixin.asyncio.sleep", new_callable=AsyncMock) @patch("gateway.platforms.weixin._send_message", new_callable=AsyncMock) def test_send_retries_failed_chunk_before_continuing(self, send_message_mock, sleep_mock): adapter = self._connected_adapter() adapter.MAX_MESSAGE_LENGTH = 12 calls = {"count": 0} async def flaky_send(*args, **kwargs): calls["count"] += 1 if calls["count"] == 2: raise RuntimeError("temporary iLink failure") send_message_mock.side_effect = flaky_send # Use double newlines so _pack_markdown_blocks splits into 3 blocks result = asyncio.run(adapter.send("wxid_test123", "first\n\nsecond\n\nthird")) assert result.success is True # 3 chunks, but chunk 2 fails once and retries → 4 _send_message calls total assert send_message_mock.await_count == 4 # The retried chunk should reuse the same client_id for deduplication first_try = send_message_mock.await_args_list[1].kwargs retry = send_message_mock.await_args_list[2].kwargs assert first_try["text"] == retry["text"] assert first_try["client_id"] == retry["client_id"] @patch("gateway.platforms.weixin.asyncio.sleep", new_callable=AsyncMock) @patch("gateway.platforms.weixin._send_message", new_callable=AsyncMock) def test_repeated_rate_limits_open_circuit_for_followup_sends(self, send_message_mock, sleep_mock): adapter = self._connected_adapter() adapter._send_chunk_retries = 3 adapter._send_chunk_retry_delay_seconds = 0 adapter._rate_limit_circuit_threshold = 2 adapter._rate_limit_circuit_window_seconds = 60 adapter._rate_limit_circuit_open_seconds = 60 send_message_mock.return_value = { "ret": weixin.RATE_LIMIT_ERRCODE, "errcode": weixin.RATE_LIMIT_ERRCODE, "errmsg": "frequency limit", } first = asyncio.run(adapter.send("wxid_test123", "first")) second = asyncio.run(adapter.send("wxid_test123", "second")) assert first.success is False assert "cooldown" in (first.error or "") assert second.success is False assert "cooldown" in (second.error or "") # The first rate-limit response is retried once. The second response # crosses the sliding-window threshold, opens the breaker, and both the # rest of the current chunk and follow-up sends fail fast. assert send_message_mock.await_count == 2 assert sleep_mock.await_count == 1 class TestWeixinOutboundMedia: def test_send_file_uses_post_for_upload_full_url_and_hex_encoded_aes_key(self, tmp_path): class _UploadResponse: def __init__(self): self.status = 200 self.headers = {"x-encrypted-param": "enc-param"} async def __aenter__(self): return self async def __aexit__(self, exc_type, exc, tb): return False async def read(self): return b"" async def text(self): return "" class _RecordingSession: def __init__(self): self.post_calls = [] def post(self, url, **kwargs): self.post_calls.append((url, kwargs)) return _UploadResponse() def put(self, *_args, **_kwargs): raise AssertionError("upload_full_url branch should use POST") image_path = tmp_path / "demo.png" image_path.write_bytes(b"fake-png-bytes") adapter = _make_adapter() session = _RecordingSession() adapter._session = session adapter._send_session = session adapter._token = "test-token" adapter._base_url = "https://weixin.example.com" adapter._cdn_base_url = "https://cdn.example.com/c2c" adapter._token_store.get = lambda account_id, chat_id: None aes_key = bytes(range(16)) expected_aes_key = base64.b64encode(aes_key.hex().encode("ascii")).decode("ascii") with patch("gateway.platforms.weixin._get_upload_url", new=AsyncMock(return_value={"upload_full_url": "https://upload.example.com/media"})), \ patch("gateway.platforms.weixin._api_post", new_callable=AsyncMock) as api_post_mock, \ patch("gateway.platforms.weixin.secrets.token_hex", return_value="filekey-123"), \ patch("gateway.platforms.weixin.secrets.token_bytes", return_value=aes_key): message_id = asyncio.run(adapter._send_file("wxid_test123", str(image_path), "")) assert message_id.startswith("hermes-weixin-") assert len(session.post_calls) == 1 upload_url, upload_kwargs = session.post_calls[0] assert upload_url == "https://upload.example.com/media" assert upload_kwargs["headers"] == {"Content-Type": "application/octet-stream"} assert upload_kwargs["data"] # Timeout is now enforced externally via asyncio.wait_for() rather than # aiohttp.ClientTimeout, so it no longer appears as a post() kwarg. assert "timeout" not in upload_kwargs payload = api_post_mock.await_args.kwargs["payload"] media = payload["msg"]["item_list"][0]["image_item"]["media"] assert media["encrypt_query_param"] == "enc-param" assert media["aes_key"] == expected_aes_key class TestWeixinRemoteMediaSafety: def test_download_remote_media_blocks_unsafe_urls(self): adapter = _make_adapter() with patch("tools.url_safety.is_safe_url", return_value=False): try: asyncio.run(adapter._download_remote_media("http://127.0.0.1/private.png")) except ValueError as exc: assert "Blocked unsafe URL" in str(exc) else: raise AssertionError("expected ValueError for unsafe URL") class TestWeixinMarkdownLinks: """Markdown links should be preserved so WeChat can render them natively.""" def test_format_message_preserves_links_inside_code_blocks(self): adapter = _make_adapter() content = "See below:\n\n```\n[link](https://example.com)\n```\n\nDone." result = adapter.format_message(content) assert "[link](https://example.com)" in result class TestWeixinBlankMessagePrevention: """Regression tests for the blank-bubble bugs. Three separate guards now prevent a blank WeChat message from ever being dispatched: 1. ``_split_text_for_weixin_delivery("")`` returns ``[]`` — not ``[""]``. 2. ``send()`` filters out empty/whitespace-only chunks before calling ``_send_text_chunk``. 3. ``_send_message()`` raises ``ValueError`` for empty text as a last-resort safety net. """ def test_split_text_returns_empty_list_for_empty_string_split_per_line(self): adapter = WeixinAdapter( PlatformConfig( enabled=True, extra={ "account_id": "acct", "token": "test-tok", "split_multiline_messages": True, }, ) ) assert adapter._split_text("") == [] class TestWeixinStreamingCursorSuppression: """WeChat doesn't support message editing — cursor must be suppressed.""" def test_supports_message_editing_is_false(self): adapter = _make_adapter() assert adapter.SUPPORTS_MESSAGE_EDITING is False class TestWeixinMediaBuilder: """Media builder uses base64(hex_key), not base64(raw_bytes) for aes_key.""" def test_voice_builder_for_audio_files_uses_file_attachment_type(self): adapter = _make_adapter() media_type, builder = adapter._outbound_media_builder("note.mp3") assert media_type == weixin.MEDIA_FILE item = builder( encrypt_query_param="eq", aes_key_for_api="fakekey", ciphertext_size=512, plaintext_size=500, filename="note.mp3", rawfilemd5="abc", ) assert item["type"] == weixin.ITEM_FILE assert item["file_item"]["file_name"] == "note.mp3" class TestWeixinSendImageFileParameterName: """Regression test for send_image_file parameter name mismatch. The gateway calls send_image_file(chat_id=..., image_path=...) but the WeixinAdapter previously used 'path' as the parameter name, causing image sending to fail. This test ensures the interface stays correct. """ @patch.object(WeixinAdapter, "send_document", new_callable=AsyncMock) def test_send_image_file_uses_image_path_parameter(self, send_document_mock): """Verify send_image_file accepts image_path and forwards to send_document.""" adapter = _make_adapter() adapter._session = object() adapter._send_session = adapter._session adapter._token = "test-token" send_document_mock.return_value = weixin.SendResult(success=True, message_id="test-id") # This is the call pattern used by gateway/run.py extract_media result = asyncio.run( adapter.send_image_file( chat_id="wxid_test123", image_path="/tmp/test_image.png", caption="Test caption", metadata={"thread_id": "thread-123"}, ) ) assert result.success is True send_document_mock.assert_awaited_once_with( chat_id="wxid_test123", file_path="/tmp/test_image.png", caption="Test caption", metadata={"thread_id": "thread-123"}, ) class TestWeixinVoiceSending: def _connected_adapter(self) -> WeixinAdapter: adapter = _make_adapter() adapter._session = object() adapter._send_session = adapter._session adapter._token = "test-token" adapter._base_url = "https://weixin.example.com" adapter._token_store.get = lambda account_id, chat_id: "ctx-token" return adapter @patch.object(weixin, "_api_post", new_callable=AsyncMock) @patch.object(weixin, "_upload_ciphertext", new_callable=AsyncMock) @patch.object(weixin, "_get_upload_url", new_callable=AsyncMock) def test_send_file_sets_voice_metadata_for_silk_payload( self, get_upload_url_mock, upload_ciphertext_mock, api_post_mock, tmp_path, ): adapter = self._connected_adapter() silk = tmp_path / "voice.silk" silk.write_bytes(b"\x02#!SILK_V3\x01\x00") get_upload_url_mock.return_value = {"upload_full_url": "https://cdn.example.com/upload"} upload_ciphertext_mock.return_value = "enc-q" api_post_mock.return_value = {"success": True} asyncio.run(adapter._send_file("wxid_test123", str(silk), "")) payload = api_post_mock.await_args.kwargs["payload"] voice_item = payload["msg"]["item_list"][0]["voice_item"] assert voice_item.get("playtime", 0) == 0 assert voice_item["encode_type"] == 6 assert voice_item["sample_rate"] == 24000 assert voice_item["bits_per_sample"] == 16 class TestIsStaleSessionRet: """Regression test for #17228: distinguish stale-session ret=-2 from rate-limit ret=-2.""" def test_ret_minus_2_with_freq_limit_is_not_stale(self): # Genuine rate limit — must NOT be treated as stale session. assert weixin._is_stale_session_ret(-2, None, "freq limit") is False def test_errcode_minus_14_is_not_matched_here(self): # -14 is handled by the separate SESSION_EXPIRED_ERRCODE path; the # helper only disambiguates -2 from a genuine rate limit. assert weixin._is_stale_session_ret(-14, None, "session expired") is False class TestWeixinContentDedup: """Regression tests for Issue #16182 — upstream API sends duplicate content with different message_ids, bypassing message_id deduplication. """ def test_duplicate_content_with_different_message_ids_is_dropped(self): adapter = _make_adapter() adapter._poll_session = object() adapter.handle_message = AsyncMock() # Tighten the text-debounce delay so the flush completes quickly. adapter._text_batch_delay_seconds = 0.05 adapter._text_batch_split_delay_seconds = 0.05 base_msg = { "from_user_id": "wxid_user1", "item_list": [{"type": 1, "text_item": {"text": "hello world"}}], } async def _drive(): # Both inbound messages share the same event loop so the debounce # task created by the first one survives to be flushed. await adapter._process_message({**base_msg, "message_id": "msg-1"}) await adapter._process_message({**base_msg, "message_id": "msg-2"}) # Wait out the quiet period so the buffered text batch flushes. await asyncio.sleep(0.2) asyncio.run(_drive()) # Content-dedup drops the second (duplicate) message before it is even # enqueued, so only one combined dispatch reaches handle_message. assert adapter.handle_message.await_count == 1 event = adapter.handle_message.await_args[0][0] assert event.text == "hello world" class TestWeixinTextDebounce: """Text-debounce batching for rapid multi-message bursts (issue #35301). Delays are read from ``config.extra`` (config.yaml), not env vars. """ def test_batch_delays_overridden_via_config_extra(self): adapter = WeixinAdapter( PlatformConfig( enabled=True, token="test-token", extra={ "account_id": "test-account", "text_batch_delay_seconds": "0.5", "text_batch_split_delay_seconds": 1.5, }, ) ) assert adapter._text_batch_delay_seconds == 0.5 assert adapter._text_batch_split_delay_seconds == 1.5 class _StubResponse: def __init__(self, *, status=200, body="{}", delay=0.0): self.status = status self.ok = 200 <= status < 300 self._body = body self._delay = delay async def __aenter__(self): return self async def __aexit__(self, *_exc): return False async def text(self): if self._delay: await asyncio.sleep(self._delay) return self._body class _StubSession: """Records request kwargs and returns a configurable async-CM response. Unlike aiohttp.ClientSession it installs no TimerContext, so it cannot reproduce aiohttp's cross-loop crash directly; these tests instead pin the observable contract of the asyncio.wait_for migration. """ def __init__(self, response): self._response = response self.post_calls = [] self.get_calls = [] def post(self, url, **kwargs): self.post_calls.append((url, kwargs)) return self._response def get(self, url, **kwargs): self.get_calls.append((url, kwargs)) return self._response class TestWeixinApiTimeout: def test_api_post_does_not_pass_aiohttp_timeout_kwarg(self): session = _StubSession(_StubResponse(body='{"ret": 0}')) result = asyncio.run( weixin._api_post( session, base_url="https://weixin.example.com", endpoint="ep", payload={"k": "v"}, token="tok", timeout_ms=5000, ) ) assert result == {"ret": 0} # The fix enforces the timeout via asyncio.wait_for, so ClientTimeout is # gone and `timeout` is no longer forwarded to session.post(). [(_url, kwargs)] = session.post_calls assert "timeout" not in kwargs def test_get_updates_returns_empty_sentinel_on_timeout(self): # wait_for raises asyncio.TimeoutError, which _get_updates swallows into # an empty long-poll batch rather than propagating. session = _StubSession(_StubResponse(delay=1.0)) result = asyncio.run( weixin._get_updates( session, base_url="https://weixin.example.com", token="tok", sync_buf="buf-123", timeout_ms=1, ) ) assert result == {"ret": 0, "msgs": [], "get_updates_buf": "buf-123"} class TestWeixinVoiceAlwaysDownloaded: """Regression tests for #27300: when WeChat (Weixin) returns a ``voice_item.text`` (Tencent Cloud's STT) we must still download the raw audio and route it through Hermes' own STT pipeline. Non-Chinese users currently see garbled transcriptions because the existing code short-circuits in two places: ``_download_voice`` returns ``None`` whenever Tencent provided *any* text (even incorrect), and ``_extract_text`` returns that text as the message body. The fix is to always download and never return Tencent's text — the central STT pipeline in ``gateway/run.py`` produces the actual body from the downloaded audio. """ def _make_voice_item(self, text: str = "") -> dict: """Build a minimal voice item with media + optional Tencent text.""" return { "type": weixin.ITEM_VOICE, "voice_item": { "text": text, "media": { "encrypt_query_param": "q", "aes_key": "a" * 32, "full_url": "https://example.invalid/voice.silk", }, }, } @pytest.mark.asyncio async def test_download_voice_returns_path_when_tencent_text_set(self, tmp_path, monkeypatch): """#27300 PRIMARY: ``_download_voice`` must not short-circuit on ``voice_item.text``. The audio is needed so Hermes' own STT can re-transcribe when Tencent's text is in the wrong language. """ adapter = _make_adapter() adapter._cdn_base_url = "https://example.invalid" adapter._poll_session = Mock() fake_audio_bytes = b"\\x00\\x01\\x02FAKE_SILK" monkeypatch.setattr(weixin, "cache_audio_from_bytes", lambda data, ext: str(tmp_path / f"voice.{ext.lstrip('.')}")) async def _fake_download(session, *, cdn_base_url, encrypted_query_param, aes_key_b64, full_url, timeout_seconds): return fake_audio_bytes monkeypatch.setattr(weixin, "_download_and_decrypt_media", _fake_download) item = self._make_voice_item(text="garbled-tencent-transcript") result = await adapter._download_voice(item) # Currently broken: returns None when voice_item.text is set. # After fix: returns a local path so the central STT pipeline # can pick it up and re-transcribe. assert result is not None, ( "_download_voice returned None even though raw audio is " "available — Hermes' STT pipeline needs the audio to handle " "non-Chinese voice messages (#27300)." ) assert result.endswith(".silk") def test_extract_text_does_not_return_tencent_voice_text(self): """#27300 SECONDARY: ``_extract_text`` must not return ``voice_item.text`` verbatim. That text is Tencent Cloud's STT output, which is wrong for non-Chinese audio and the whole reason #27300 was filed. Returning empty forces the central STT pipeline's transcript to become the body. """ item_list = [self._make_voice_item(text="garbled-tencent-transcript")] result = weixin._extract_text(item_list) # Currently broken: returns "garbled-tencent-transcript". # After fix: returns "" (empty string) so the central pipeline # transcript replaces it as the user-visible body. assert result != "garbled-tencent-transcript", ( "_extract_text returned Tencent's text directly — for " "non-Chinese audio this is garbage; the central STT " "pipeline's transcript should be the body (#27300)." ) @pytest.mark.asyncio async def test_collect_media_includes_voice_when_tencent_text_set(self, tmp_path, monkeypatch): """#27300 INTEGRATION: ``_collect_media`` should add a ``.silk`` path to ``media_paths`` even when Tencent returned text, so the central STT pipeline can re-transcribe. Currently the short-circuit in ``_download_voice`` means the audio is never downloaded, and the message body is whatever Tencent wrote (garbled for non-Chinese audio). """ adapter = _make_adapter() adapter._cdn_base_url = "https://example.invalid" adapter._poll_session = Mock() monkeypatch.setattr(weixin, "cache_audio_from_bytes", lambda data, ext: str(tmp_path / f"voice.{ext.lstrip('.')}")) async def _fake_download(session, *, cdn_base_url, encrypted_query_param, aes_key_b64, full_url, timeout_seconds): return b"\\x00FAKE" monkeypatch.setattr(weixin, "_download_and_decrypt_media", _fake_download) media_paths: list = [] media_types: list = [] item = self._make_voice_item(text="какой-то текст") await adapter._collect_media(item, media_paths, media_types) assert len(media_paths) == 1, ( "_collect_media dropped the voice attachment because " "voice_item.text was set — Hermes' STT never gets a " "chance to re-transcribe (#27300)." ) assert media_types == ["audio/silk"] class TestWeixinVoiceGatewayHandoff: """#27300 integration-level regression: the routing fix must not only download the audio and drop Tencent's text at the adapter level — the inbound voice item must surface as a VOICE ``MessageEvent`` carrying the ``audio/silk`` media, and that event must reach the runner's central STT pipeline (``_enrich_message_with_transcription``) instead of being trusted as already-transcribed text. This covers the gateway-runner handoff that the adapter-only tests above do not exercise. """ def _inbound_voice_message(self, text: str) -> dict: return { "from_user_id": "user-123", "to_user_id": "test-account", "message_id": "msg-voice-1", "msg_type": 1, "item_list": [ { "type": weixin.ITEM_VOICE, "voice_item": { "text": text, "media": { "encrypt_query_param": "q", "aes_key": "a" * 32, "full_url": "https://example.invalid/voice.silk", }, }, } ], } @pytest.mark.asyncio async def test_voice_event_body_is_not_tencent_text(self, tmp_path, monkeypatch): """The VOICE event handed to the runner must NOT carry Tencent's STT text as its body — the central pipeline's transcript replaces it. """ adapter = _make_adapter() adapter._poll_session = Mock() adapter._token = None adapter._cdn_base_url = "https://example.invalid" monkeypatch.setattr(weixin, "cache_audio_from_bytes", lambda data, ext: str(tmp_path / f"voice.{ext.lstrip('.')}")) async def _fake_download(*a, **k): return b"\x00\x01FAKE_SILK" monkeypatch.setattr(weixin, "_download_and_decrypt_media", _fake_download) captured = {} async def _capture(event): captured["event"] = event adapter.handle_message = _capture tencent_text = "garbled English phonemes for a Russian voice" await adapter._process_message(self._inbound_voice_message(tencent_text)) assert "event" in captured event = captured["event"] # The text field must be empty (Tencent text dropped) so the runner # has no pre-filled body and routes the audio to STT. assert event.text != tencent_text, ( "VOICE event body leaked Tencent's STT text — runner would trust " "the wrong transcript instead of re-transcribing (#27300)." )