Files
hkuds--lightrag/tests/kg/postgres_impl/test_postgres_client_manager.py
T
2026-07-13 12:08:54 +08:00

74 lines
2.4 KiB
Python

from unittest.mock import AsyncMock, MagicMock, patch
import pytest
from lightrag.kg.postgres_impl import ClientManager
@pytest.fixture(autouse=True)
def reset_client_manager_state() -> None:
ClientManager._instances = {"db": None, "ref_count": 0, "vector_signature": None}
def test_pg_vector_storage_enables_vector() -> None:
config = ClientManager.get_config("PGVectorStorage")
assert config["enable_vector"] is True
def test_non_pg_vector_storage_disables_vector() -> None:
config = ClientManager.get_config("NanoVectorDBStorage")
assert config["enable_vector"] is False
def test_milvus_storage_disables_vector() -> None:
config = ClientManager.get_config("MilvusVectorDBStorage")
assert config["enable_vector"] is False
def test_qdrant_storage_disables_vector() -> None:
config = ClientManager.get_config("QdrantVectorDBStorage")
assert config["enable_vector"] is False
def test_none_vector_storage_defaults_to_true() -> None:
# Backward compatibility: when vector_storage is unknown (None), default to True.
config = ClientManager.get_config(None)
assert config["enable_vector"] is True
def test_no_args_defaults_to_true() -> None:
# Backward compatibility: calling without arguments preserves prior behavior.
config = ClientManager.get_config()
assert config["enable_vector"] is True
@pytest.mark.asyncio
async def test_get_client_reuses_shared_pool_for_same_vector_settings() -> None:
db = MagicMock()
db.initdb = AsyncMock()
db.check_tables = AsyncMock()
with patch("lightrag.kg.postgres_impl.PostgreSQLDB", return_value=db) as db_cls:
first = await ClientManager.get_client("PGVectorStorage")
second = await ClientManager.get_client("PGVectorStorage")
assert first is db
assert second is db
assert ClientManager._instances["ref_count"] == 2
db_cls.assert_called_once()
db.initdb.assert_awaited_once()
db.check_tables.assert_awaited_once()
@pytest.mark.asyncio
async def test_get_client_rejects_conflicting_vector_storage_settings() -> None:
db = MagicMock()
db.initdb = AsyncMock()
db.check_tables = AsyncMock()
with patch("lightrag.kg.postgres_impl.PostgreSQLDB", return_value=db):
await ClientManager.get_client("NanoVectorDBStorage")
with pytest.raises(RuntimeError, match="process-wide"):
await ClientManager.get_client("PGVectorStorage")