fix: persist ASR model in models API

tests/test_models_handler.py

@@ -0,0 +1,59 @@
+# encoding:utf-8
+import json
+import os
+import sys
+import types
+import unittest
+from unittest.mock import patch
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
+
+if "web" not in sys.modules:
+    web_stub = types.ModuleType("web")
+    web_stub.HTTPError = type("HTTPError", (Exception,), {})
+    web_stub.cookies = lambda: {}
+    web_stub.header = lambda *args, **kwargs: None
+    web_stub.data = lambda: b"{}"
+    web_stub.input = lambda **kwargs: types.SimpleNamespace(**kwargs)
+    web_stub.setcookie = lambda *args, **kwargs: None
+    web_stub.seeother = lambda *args, **kwargs: Exception("seeother")
+    web_stub.notfound = lambda *args, **kwargs: Exception("notfound")
+    web_stub.badrequest = lambda *args, **kwargs: Exception("badrequest")
+    web_stub.application = lambda *args, **kwargs: types.SimpleNamespace(wsgifunc=lambda: None)
+    web_stub.httpserver = types.SimpleNamespace(
+        LogMiddleware=type("LogMiddleware", (), {"log": lambda *args, **kwargs: None}),
+        StaticMiddleware=lambda app: app,
+        WSGIServer=lambda *args, **kwargs: types.SimpleNamespace(serve_forever=lambda: None),
+    )
+    sys.modules["web"] = web_stub
+
+
+class TestModelsHandler(unittest.TestCase):
+    def test_set_asr_capability_persists_provider_and_model(self):
+        from channel.web.web_channel import ModelsHandler
+
+        local_config = {}
+        file_config = {}
+        handler = ModelsHandler()
+
+        with patch("channel.web.web_channel.conf", return_value=local_config):
+            with patch.object(ModelsHandler, "_read_file_config", return_value=file_config):
+                with patch.object(ModelsHandler, "_write_file_config") as write_file:
+                    with patch.object(ModelsHandler, "_refresh_voice_routing") as refresh_voice:
+                        result = json.loads(handler._handle_set_capability({
+                            "capability": "asr",
+                            "provider_id": "dashscope",
+                            "model": "qwen3-asr-flash",
+                        }))
+
+        self.assertEqual(result["status"], "success")
+        self.assertEqual(local_config["voice_to_text"], "dashscope")
+        self.assertEqual(local_config["voice_to_text_model"], "qwen3-asr-flash")
+        self.assertEqual(file_config["voice_to_text"], "dashscope")
+        self.assertEqual(file_config["voice_to_text_model"], "qwen3-asr-flash")
+        write_file.assert_called_once_with(file_config)
+        refresh_voice.assert_called_once()
+
+
+if __name__ == "__main__":
+    unittest.main()