Hermes-agent

tests/run_agent/test_init_fallback_on_exhausted_pool.py

@@ -0,0 +1,69 @@
+"""Regression test for #17929: AIAgent.__init__ should try fallback_model
+when primary provider credentials are exhausted."""
+import pytest
+from unittest.mock import patch, MagicMock
+from run_agent import AIAgent
+
+
+def _make_tool_defs():
+    return [{"type": "function", "function": {"name": "web_search",
+             "description": "search", "parameters": {"type": "object", "properties": {}}}}]
+
+
+def _mock_client(api_key="fb-key-1234567890", base_url="https://fb.example.com/v1"):
+    c = MagicMock()
+    c.api_key = api_key
+    c.base_url = base_url
+    c._default_headers = None
+    return c
+
+
+def test_init_tries_fallback_when_primary_returns_none():
+    """When resolve_provider_client returns None for primary but succeeds for
+    a fallback entry, __init__ should NOT raise RuntimeError."""
+    fb = _mock_client()
+
+    def fake_resolve(provider, model=None, raw_codex=False,
+                     explicit_base_url=None, explicit_api_key=None):
+        if provider == "tencent-token-plan":
+            return fb, "kimi2.5"
+        return None, None  # primary exhausted
+
+    with patch("agent.auxiliary_client.resolve_provider_client", side_effect=fake_resolve), \
+         patch("run_agent.get_tool_definitions", return_value=_make_tool_defs()), \
+         patch("run_agent.check_toolset_requirements", return_value={}), \
+         patch("run_agent.OpenAI", return_value=MagicMock()):
+
+        agent = AIAgent(
+            provider="alibaba-coding-plan",
+            model="qwen3.6-plus",
+            api_key=None,
+            base_url=None,
+            quiet_mode=True,
+            skip_context_files=True,
+            skip_memory=True,
+            fallback_model=[{"provider": "tencent-token-plan", "model": "kimi2.5"}],
+        )
+        assert agent.provider == "tencent-token-plan"
+        assert agent.model == "kimi2.5"
+        assert agent._fallback_activated is True
+
+
+def test_init_raises_when_no_fallback_configured():
+    """When primary returns None and no fallback is set, should raise."""
+    with patch("agent.auxiliary_client.resolve_provider_client", return_value=(None, None)), \
+         patch("run_agent.get_tool_definitions", return_value=_make_tool_defs()), \
+         patch("run_agent.check_toolset_requirements", return_value={}), \
+         patch("run_agent.OpenAI", return_value=MagicMock()):
+
+        with pytest.raises(RuntimeError, match="no API key was found"):
+            AIAgent(
+                provider="alibaba-coding-plan",
+                model="qwen3.6-plus",
+                api_key=None,
+                base_url=None,
+                quiet_mode=True,
+                skip_context_files=True,
+                skip_memory=True,
+                fallback_model=None,
+            )