20 lines
705 B
Python
20 lines
705 B
Python
import os
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from app.rag import rerank
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def test_rerank_disabled_is_stable(monkeypatch):
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monkeypatch.delenv("RAG_RERANKER_MODEL", raising=False)
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rows = [{"id": "a", "text": "第一"}, {"id": "b", "text": "第二"}]
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assert rerank.rerank(rows, "问题") == rows
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metric = rerank.last_metric()
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assert metric["fallback"] is True
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assert metric["reranked_count"] == 0
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def test_rerank_local_model_missing_falls_back(monkeypatch, tmp_path):
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monkeypatch.setenv("RAG_RERANKER_MODEL", str(tmp_path / "missing"))
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rows = [{"id": "a", "text": "第一"}, {"id": "b", "text": "第二"}]
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assert rerank.rerank(rows, "问题") == rows
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assert rerank.last_metric()["fallback"] is True
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