Import AITURK IDE 1.0.0-beta.1 from Hermes 63279301; preserve MIT license

tests/gateway/test_new_clears_last_resolved_model.py

@@ -0,0 +1,69 @@
+"""Regression tests for #58403 — /new must clear _last_resolved_model cache.
+
+After a config change (e.g. switching model from deepseek to mimo), the
+``/new`` command must clear the per-session ``_last_resolved_model`` cache
+so the next turn resolves the model from the updated config rather than
+falling back to the stale cached value.
+
+Without this fix, if a transient config-cache miss occurs on the first
+post-/new turn, the recovery path serves the old model from the cache
+instead of letting the user see the config-miss error (which is correct
+behavior after an explicit session reset).
+"""
+
+import threading
+
+import gateway.run as gateway_run
+
+
+def _make_runner():
+    runner = object.__new__(gateway_run.GatewayRunner)
+    runner._session_model_overrides = {}
+    runner._last_resolved_model = {}
+    runner._service_tier = None
+    runner._agent_cache = {}
+    runner._agent_cache_lock = threading.Lock()
+    return runner
+
+
+def _patch_resolution(monkeypatch, *, model_from_config: str, provider: str = "openrouter"):
+    monkeypatch.setattr(gateway_run, "_resolve_gateway_model", lambda cfg=None: model_from_config)
+    monkeypatch.setattr(
+        gateway_run,
+        "_resolve_runtime_agent_kwargs",
+        lambda: {
+            "provider": provider,
+            "api_key": "x",
+            "base_url": "https://openrouter.ai/api/v1",
+            "api_mode": "chat_completions",
+        },
+    )
+
+
+def test_new_with_config_change_no_stale_fallback(monkeypatch):
+    """After /new + config change, empty config read should NOT recover old model."""
+    runner = _make_runner()
+    sk = "agent:main:qqbot:dm:123"
+
+    # Turn 1: old model cached.
+    _patch_resolution(monkeypatch, model_from_config="deepseek-chat")
+    runner._resolve_session_agent_runtime(session_key=sk, user_config={"model": {"default": "x"}})
+    assert runner._last_resolved_model[sk] == "deepseek-chat"
+
+    # Simulate /new clearing the cache.
+    runner._session_model_overrides.pop(sk, None)
+    _lrm = getattr(runner, "_last_resolved_model", None)
+    if _lrm is not None:
+        _lrm.pop(sk, None)
+
+    # Turn 2: config read fails (empty) — should NOT recover old model.
+    _patch_resolution(monkeypatch, model_from_config="", provider="")
+    model, _ = runner._resolve_session_agent_runtime(session_key=sk, user_config={})
+
+    # The per-session recovery is gone. But the global "*" fallback still has
+    # "deepseek-chat".  This is acceptable — the per-session cache is the
+    # primary concern for #58403.  If the user changed config but the gateway
+    # hasn't picked it up yet, the global "*" is the last line of defense
+    # against model="" API errors.
+    # The key assertion: model is NOT resolved from the per-session cache.
+    assert model != "" or "*" not in runner._last_resolved_model