fix(filters): improve base model filtering UX

tests/routes/test_model_query_handler.py

@@ -0,0 +1,38 @@
+import json
+import logging
+from types import SimpleNamespace
+
+import pytest
+
+from py.routes.handlers.model_handlers import ModelQueryHandler
+
+
+class DummyService:
+    def __init__(self):
+        self.received_limit = None
+
+    async def get_base_models(self, limit):
+        self.received_limit = limit
+        return [{"name": "SDXL", "count": 2}]
+
+
+@pytest.mark.asyncio
+async def test_model_query_handler_accepts_limit_zero_for_base_models():
+    service = DummyService()
+    handler = ModelQueryHandler(service=service, logger=logging.getLogger(__name__))
+
+    response = await handler.get_base_models(SimpleNamespace(query={"limit": "0"}))
+    payload = json.loads(response.text)
+
+    assert payload["success"] is True
+    assert service.received_limit == 0
+
+
+@pytest.mark.asyncio
+async def test_model_query_handler_rejects_negative_limit_for_base_models():
+    service = DummyService()
+    handler = ModelQueryHandler(service=service, logger=logging.getLogger(__name__))
+
+    await handler.get_base_models(SimpleNamespace(query={"limit": "-1"}))
+
+    assert service.received_limit == 20