修复 Pipecat 实时链路并补齐网页测试

app/tests/test_transport.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python3
+"""传输适配层的无硬件回归测试。"""
+
+from __future__ import annotations
+
+import asyncio
+import tempfile
+import time
+import wave
+from pathlib import Path
+import sys
+
+import numpy as np
+from av import AudioFrame
+
+ROOT = Path(__file__).resolve().parent.parent.parent
+sys.path.insert(0, str(ROOT))
+
+from client.test_client import FileAudioTrack, ReplyRecorder
+from services.bot_server import SimpleVAD
+
+
+def _write_test_wav(path: Path) -> None:
+    samples = np.ones(1600, dtype=np.int16) * 1000  # 100ms 语音
+    with wave.open(str(path), "wb") as output:
+        output.setnchannels(1)
+        output.setsampwidth(2)
+        output.setframerate(16000)
+        output.writeframes(samples.tobytes())
+
+
+async def test_file_track_clock() -> None:
+    with tempfile.TemporaryDirectory(prefix="transport_test_") as directory:
+        path = Path(directory) / "input.wav"
+        _write_test_wav(path)
+        track = FileAudioTrack(path, tail_silence_s=0.8)
+        track._t0 = time.perf_counter() - 10  # 测试不需要真实等待
+        pts = []
+        while not track.finished:
+            pts.append((await track.recv()).pts)
+
+    assert len(pts) == 90, len(pts)  # 100ms 音频 + 800ms 静音
+    assert all(after > before for before, after in zip(pts, pts[1:])), pts[-5:]
+
+
+def test_vad_tail_silence() -> None:
+    vad = SimpleVAD()
+    events = [vad.feed(np.ones(320, dtype=np.int16) * 1000, 20) for _ in range(20)]
+    events += [vad.feed(np.zeros(320, dtype=np.int16), 20) for _ in range(40)]
+    assert "end" in events
+
+
+def test_reply_requires_non_silent_audio() -> None:
+    recorder = ReplyRecorder(Path("/tmp/unused-transport-test.wav"))
+    silence = AudioFrame(format="s16", layout="mono", samples=320)
+    silence.planes[0].update(np.zeros(320, dtype=np.int16).tobytes())
+    silence.sample_rate = 48000
+    recorder.feed(silence)
+    assert not recorder.has_speech
+    assert recorder.sample_rate == 48000
+
+    speech = AudioFrame(format="s16", layout="mono", samples=320)
+    speech.planes[0].update((np.ones(320, dtype=np.int16) * 500).tobytes())
+    speech.sample_rate = 48000
+    recorder.feed(speech)
+    assert recorder.has_speech
+
+
+async def main() -> int:
+    await test_file_track_clock()
+    test_vad_tail_silence()
+    test_reply_requires_non_silent_audio()
+    print("传输适配层回归测试：3/3 PASS")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(asyncio.run(main()))