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53 lines
2.0 KiB
Python
53 lines
2.0 KiB
Python
"""Regression test: agent must tolerate providers that return usage=None.
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The OpenAI SDK response object always HAS a `usage` attribute (pydantic
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field), but it deserializes as None when the provider omits token accounting.
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The old `hasattr(response, 'usage')` guard was therefore ineffective and
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`response.usage.total_tokens` raised AttributeError, crashing execute_task.
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"""
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import os
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import sys
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from types import SimpleNamespace
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os.environ.setdefault("OPENAI_API_KEY", "test-key") # OpenAI() requires a key at construction
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sys.path.insert(0, os.path.dirname(__file__))
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from agent import ActiveToolAgent, RetrievalToolAgent, PassiveToolAgent
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from tool_knowledge_base import ToolDefinition, ServerDefinition
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AGENT_CLASSES = [ActiveToolAgent, RetrievalToolAgent, PassiveToolAgent]
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def _catalog():
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tool = ToolDefinition(
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name="demo_tool",
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description="demo tool",
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parameters={"type": "object", "properties": {}},
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server="demo",
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)
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return [ServerDefinition(name="demo", description="demo server", tools=[tool])]
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def _client_with_usage(usage):
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"""Fake OpenAI client; response mimics the SDK object (usage attr always present)."""
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message = SimpleNamespace(content="final answer", tool_calls=None)
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response = SimpleNamespace(choices=[SimpleNamespace(message=message)], usage=usage)
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completions = SimpleNamespace(create=lambda **kwargs: response)
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return SimpleNamespace(chat=SimpleNamespace(completions=completions))
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def test_usage_none_does_not_crash():
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for cls in AGENT_CLASSES:
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agent = cls(servers=_catalog())
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agent.client = _client_with_usage(None)
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result = agent.execute_task("do something trivial")
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assert result["metrics"]["tokens_used"] == 0, cls.__name__
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def test_usage_still_accumulated_when_present():
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for cls in AGENT_CLASSES:
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agent = cls(servers=_catalog())
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agent.client = _client_with_usage(SimpleNamespace(total_tokens=42))
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result = agent.execute_task("do something trivial")
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assert result["metrics"]["tokens_used"] == 42, cls.__name__
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