Files
hkuds--lightrag/tests/llm/test_utils_llm_cache.py
T
2026-07-13 12:08:54 +08:00

98 lines
2.6 KiB
Python

from unittest.mock import AsyncMock
import pytest
from lightrag.utils import use_llm_func_with_cache
class _FakeKVStorage:
def __init__(self):
self.global_config = {"enable_llm_cache_for_entity_extract": True}
self._store = {}
async def get_by_id(self, key):
return self._store.get(key)
async def upsert(self, entries):
self._store.update(entries)
@pytest.mark.offline
@pytest.mark.asyncio
async def test_use_llm_func_with_cache_partitions_cache_by_response_format():
cache = _FakeKVStorage()
llm_func = AsyncMock(side_effect=["plain-text", '{"answer":"json"}'])
plain_result, _ = await use_llm_func_with_cache(
"same prompt",
llm_func,
llm_response_cache=cache,
)
json_result, _ = await use_llm_func_with_cache(
"same prompt",
llm_func,
llm_response_cache=cache,
response_format={"type": "json_object"},
)
assert plain_result == "plain-text"
assert json_result == '{"answer":"json"}'
assert llm_func.await_count == 2
assert len(cache._store) == 2
@pytest.mark.offline
@pytest.mark.asyncio
async def test_use_llm_func_with_cache_partitions_cache_by_llm_identity():
cache = _FakeKVStorage()
llm_func = AsyncMock(side_effect=["model-a", "model-b"])
first_result, _ = await use_llm_func_with_cache(
"same prompt",
llm_func,
llm_response_cache=cache,
llm_cache_identity={
"role": "query",
"binding": "openai",
"model": "model-a",
"host": "https://api.example.com/v1",
},
)
second_result, _ = await use_llm_func_with_cache(
"same prompt",
llm_func,
llm_response_cache=cache,
llm_cache_identity={
"role": "query",
"binding": "openai",
"model": "model-b",
"host": "https://api.example.com/v1",
},
)
assert first_result == "model-a"
assert second_result == "model-b"
assert llm_func.await_count == 2
assert len(cache._store) == 2
@pytest.mark.offline
@pytest.mark.asyncio
async def test_use_llm_func_with_cache_rejects_json_schema_response_format():
llm_func = AsyncMock()
with pytest.raises(ValueError, match="json_schema"):
await use_llm_func_with_cache(
"same prompt",
llm_func,
response_format={
"type": "json_schema",
"json_schema": {
"name": "answer_payload",
"schema": {"type": "object"},
},
},
)
llm_func.assert_not_awaited()