fix: update audio devices test to mock sounddevice instead of pactl

tests/test_api.py

@@ -100,22 +100,23 @@ def test_login_rejects_wrong_credentials():
 
 
 def test_audio_devices_returns_list(monkeypatch):
-    import subprocess
+    import sounddevice as sd
     from main import app
     from api.router import current_user
-    pactl_output = (
-        "1\talsa_input.pci.analog-stereo\tPipeWire\ts32le 2ch 48000Hz\tRUNNING\n"
-        "2\talsa_output.pci.analog-stereo.monitor\tPipeWire\ts32le 2ch 48000Hz\tIDLE\n"
-    )
-    monkeypatch.setattr(subprocess, "check_output", lambda *a, **kw: pactl_output.encode())
+    fake_devices = [
+        {"name": "Fake Mic", "max_input_channels": 1, "max_output_channels": 0},
+        {"name": "Fake Monitor", "max_input_channels": 2, "max_output_channels": 0},
+        {"name": "Fake Speaker", "max_input_channels": 0, "max_output_channels": 2},
+    ]
+    monkeypatch.setattr(sd, "query_devices", lambda: fake_devices)
     app.dependency_overrides[current_user] = lambda: {"username": "u", "output_dir": "/tmp", "is_admin": True}
     try:
         client = TestClient(app)
         r = client.get("/audio/devices", headers={"Authorization": "Bearer fake"})
         assert r.status_code == 200
         devices = r.json()
-        assert len(devices) == 2
-        assert devices[0]["name"] == "alsa_input.pci.analog-stereo"
+        assert len(devices) == 2  # only input devices
+        assert devices[0]["name"] == "Fake Mic"
     finally:
         app.dependency_overrides.pop(current_user, None)