mirror of
https://github.com/jxxghp/MoviePilot.git
synced 2026-06-26 10:12:13 +08:00
93 lines
2.9 KiB
Python
93 lines
2.9 KiB
Python
"""Agent 图缓存行为测试。"""
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from datetime import datetime
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from types import SimpleNamespace
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from unittest.mock import AsyncMock, patch
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import pytest
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from langchain_core.messages import AIMessage, HumanMessage
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from app.agent import MoviePilotAgent, ReplyMode, _CompiledAgentBundle
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@pytest.fixture
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def anyio_backend():
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"""使用 asyncio 后端运行 anyio 异步测试。"""
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return "asyncio"
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class _FakeGraphState:
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"""提供 LangGraph get_state 测试替身。"""
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def __init__(self, messages):
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"""保存测试消息状态。"""
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self.values = {"messages": messages}
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class _CapturingAgent:
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"""捕获传入消息的非流式 Agent 测试替身。"""
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def __init__(self):
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"""初始化捕获容器。"""
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self.payload = None
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async def ainvoke(self, payload, config=None):
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"""记录 Agent 调用输入。"""
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self.payload = payload
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def get_state(self, _config):
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"""返回包含最终 AI 回复的图状态。"""
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return _FakeGraphState([AIMessage(content="ok")])
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@pytest.mark.anyio
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async def test_create_agent_reuses_cached_graph_when_signature_matches():
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"""构造签名一致时应直接复用已编译 Agent 图。"""
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cached_graph = object()
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agent = MoviePilotAgent(session_id="cache-hit", user_id="user-1")
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agent._compiled_agent_bundle = _CompiledAgentBundle(
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signature=("sig",),
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agent=cached_graph,
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streaming=False,
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created_at=datetime.now(),
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)
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with patch.object(
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agent,
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"_agent_bundle_signature",
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new=AsyncMock(return_value=("sig",)),
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), patch("app.agent.create_agent") as create_agent:
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graph = await agent._create_agent(streaming=False)
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assert graph is cached_graph
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assert agent._last_agent_cache_hit is True
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create_agent.assert_not_called()
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@pytest.mark.anyio
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async def test_execute_agent_sends_only_latest_message_on_cache_hit():
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"""缓存命中时只把本轮新消息交给 LangGraph，避免重复提交历史。"""
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fake_graph = _CapturingAgent()
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agent = MoviePilotAgent(session_id="cache-hit", user_id="user-1")
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agent.reply_mode = ReplyMode.CAPTURE_ONLY
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agent._tool_context = {"user_reply_sent": False}
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agent._streamed_output = ""
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agent._should_stream = lambda: False
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agent.stream_handler = SimpleNamespace(
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stop_streaming=AsyncMock(return_value=(False, ""))
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)
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async def _create_agent(streaming=False):
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"""模拟缓存命中后的 Agent 创建结果。"""
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agent._last_agent_cache_hit = True
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return fake_graph
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agent._create_agent = _create_agent
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messages = [HumanMessage(content="上一轮"), HumanMessage(content="本轮")]
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with patch("app.agent.eventmanager.send_event"):
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await agent._execute_agent(messages)
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assert agent._streamed_output == "ok"
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assert fake_graph.payload["messages"] == [messages[-1]]
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