mirror of
https://github.com/bytedance/deer-flow.git
synced 2026-04-25 19:28:23 +00:00
6beea682d2
Tail-end of Phase 2: - Migrate ~70 remaining test sites off AppConfig.current(): drop dead monkey-patches (production no longer calls current), hoist the mocked config into a local variable and pass it explicitly. Verified with `grep -rn 'AppConfig\.current' backend/tests` → empty. - Delete the AppConfig.current() classmethod entirely. The transitional raise-only shim is no longer needed now that no test references it. - Update docs: plan marked shipped (P2-6..P2-10 in commit 84dccef2); backend/CLAUDE.md Config Lifecycle rewritten to describe the explicit-parameter design; gateway/deps.py docstrings no longer point at the removed current() surface. AppConfig is now a pure Pydantic value object. Every consumer holds its own captured instance — Gateway (app.state.config via Depends(get_config)), DeerFlowClient (self._app_config), agent runtime (DeerFlowContext.app_config), LangGraph Server bootstrap (AppConfig.from_file() inside make_lead_agent). 2337 non-e2e tests pass.
225 lines
8.8 KiB
Python
225 lines
8.8 KiB
Python
"""Unit tests for checkpointer config and singleton factory."""
|
|
|
|
import sys
|
|
from unittest.mock import AsyncMock, MagicMock, patch
|
|
|
|
import pytest
|
|
|
|
from deerflow.config.app_config import AppConfig
|
|
from deerflow.config.checkpointer_config import CheckpointerConfig
|
|
from deerflow.config.sandbox_config import SandboxConfig
|
|
from deerflow.runtime.checkpointer import get_checkpointer, reset_checkpointer
|
|
|
|
|
|
def _make_config(checkpointer: CheckpointerConfig | None = None) -> AppConfig:
|
|
return AppConfig(sandbox=SandboxConfig(use="test"), checkpointer=checkpointer)
|
|
|
|
|
|
@pytest.fixture(autouse=True)
|
|
def reset_state():
|
|
"""Reset singleton state before each test."""
|
|
reset_checkpointer()
|
|
yield
|
|
reset_checkpointer()
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Config tests
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
class TestCheckpointerConfig:
|
|
def test_memory_config(self):
|
|
config = CheckpointerConfig(type="memory")
|
|
assert config.type == "memory"
|
|
assert config.connection_string is None
|
|
|
|
def test_sqlite_config(self):
|
|
config = CheckpointerConfig(type="sqlite", connection_string="/tmp/test.db")
|
|
assert config.type == "sqlite"
|
|
assert config.connection_string == "/tmp/test.db"
|
|
|
|
def test_postgres_config(self):
|
|
config = CheckpointerConfig(type="postgres", connection_string="postgresql://localhost/db")
|
|
assert config.type == "postgres"
|
|
assert config.connection_string == "postgresql://localhost/db"
|
|
|
|
def test_default_connection_string_is_none(self):
|
|
config = CheckpointerConfig(type="memory")
|
|
assert config.connection_string is None
|
|
|
|
def test_invalid_type_raises(self):
|
|
with pytest.raises(Exception):
|
|
CheckpointerConfig(type="unknown")
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Factory tests
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
class TestGetCheckpointer:
|
|
def test_returns_in_memory_saver_when_not_configured(self):
|
|
"""get_checkpointer should return InMemorySaver when not configured."""
|
|
from langgraph.checkpoint.memory import InMemorySaver
|
|
|
|
cfg = _make_config()
|
|
cp = get_checkpointer(cfg)
|
|
assert cp is not None
|
|
assert isinstance(cp, InMemorySaver)
|
|
|
|
def test_memory_returns_in_memory_saver(self):
|
|
from langgraph.checkpoint.memory import InMemorySaver
|
|
|
|
cfg = _make_config(CheckpointerConfig(type="memory"))
|
|
cp = get_checkpointer(cfg)
|
|
assert isinstance(cp, InMemorySaver)
|
|
|
|
def test_memory_singleton(self):
|
|
cfg = _make_config(CheckpointerConfig(type="memory"))
|
|
cp1 = get_checkpointer(cfg)
|
|
cp2 = get_checkpointer(cfg)
|
|
assert cp1 is cp2
|
|
|
|
def test_reset_clears_singleton(self):
|
|
cfg = _make_config(CheckpointerConfig(type="memory"))
|
|
cp1 = get_checkpointer(cfg)
|
|
reset_checkpointer()
|
|
cp2 = get_checkpointer(cfg)
|
|
assert cp1 is not cp2
|
|
|
|
def test_sqlite_raises_when_package_missing(self):
|
|
cfg = _make_config(CheckpointerConfig(type="sqlite", connection_string="/tmp/test.db"))
|
|
with patch.dict(sys.modules, {"langgraph.checkpoint.sqlite": None}):
|
|
reset_checkpointer()
|
|
with pytest.raises(ImportError, match="langgraph-checkpoint-sqlite"):
|
|
get_checkpointer(cfg)
|
|
|
|
def test_postgres_raises_when_package_missing(self):
|
|
cfg = _make_config(CheckpointerConfig(type="postgres", connection_string="postgresql://localhost/db"))
|
|
with patch.dict(sys.modules, {"langgraph.checkpoint.postgres": None}):
|
|
reset_checkpointer()
|
|
with pytest.raises(ImportError, match="langgraph-checkpoint-postgres"):
|
|
get_checkpointer(cfg)
|
|
|
|
def test_postgres_raises_when_connection_string_missing(self):
|
|
cfg = _make_config(CheckpointerConfig(type="postgres"))
|
|
mock_saver = MagicMock()
|
|
mock_module = MagicMock()
|
|
mock_module.PostgresSaver = mock_saver
|
|
with patch.dict(sys.modules, {"langgraph.checkpoint.postgres": mock_module}):
|
|
reset_checkpointer()
|
|
with pytest.raises(ValueError, match="connection_string is required"):
|
|
get_checkpointer(cfg)
|
|
|
|
def test_sqlite_creates_saver(self):
|
|
"""SQLite checkpointer is created when package is available."""
|
|
cfg = _make_config(CheckpointerConfig(type="sqlite", connection_string="/tmp/test.db"))
|
|
|
|
mock_saver_instance = MagicMock()
|
|
mock_cm = MagicMock()
|
|
mock_cm.__enter__ = MagicMock(return_value=mock_saver_instance)
|
|
mock_cm.__exit__ = MagicMock(return_value=False)
|
|
|
|
mock_saver_cls = MagicMock()
|
|
mock_saver_cls.from_conn_string = MagicMock(return_value=mock_cm)
|
|
|
|
mock_module = MagicMock()
|
|
mock_module.SqliteSaver = mock_saver_cls
|
|
|
|
with patch.dict(sys.modules, {"langgraph.checkpoint.sqlite": mock_module}):
|
|
reset_checkpointer()
|
|
cp = get_checkpointer(cfg)
|
|
|
|
assert cp is mock_saver_instance
|
|
mock_saver_cls.from_conn_string.assert_called_once()
|
|
mock_saver_instance.setup.assert_called_once()
|
|
|
|
def test_postgres_creates_saver(self):
|
|
"""Postgres checkpointer is created when packages are available."""
|
|
cfg = _make_config(CheckpointerConfig(type="postgres", connection_string="postgresql://localhost/db"))
|
|
|
|
mock_saver_instance = MagicMock()
|
|
mock_cm = MagicMock()
|
|
mock_cm.__enter__ = MagicMock(return_value=mock_saver_instance)
|
|
mock_cm.__exit__ = MagicMock(return_value=False)
|
|
|
|
mock_saver_cls = MagicMock()
|
|
mock_saver_cls.from_conn_string = MagicMock(return_value=mock_cm)
|
|
|
|
mock_pg_module = MagicMock()
|
|
mock_pg_module.PostgresSaver = mock_saver_cls
|
|
|
|
with patch.dict(sys.modules, {"langgraph.checkpoint.postgres": mock_pg_module}):
|
|
reset_checkpointer()
|
|
cp = get_checkpointer(cfg)
|
|
|
|
assert cp is mock_saver_instance
|
|
mock_saver_cls.from_conn_string.assert_called_once_with("postgresql://localhost/db")
|
|
mock_saver_instance.setup.assert_called_once()
|
|
|
|
|
|
class TestAsyncCheckpointer:
|
|
@pytest.mark.anyio
|
|
async def test_sqlite_creates_parent_dir_via_to_thread(self):
|
|
"""Async SQLite setup should move mkdir off the event loop."""
|
|
from deerflow.runtime.checkpointer.async_provider import make_checkpointer
|
|
|
|
mock_config = MagicMock()
|
|
mock_config.checkpointer = CheckpointerConfig(type="sqlite", connection_string="relative/test.db")
|
|
|
|
mock_saver = AsyncMock()
|
|
mock_cm = AsyncMock()
|
|
mock_cm.__aenter__.return_value = mock_saver
|
|
mock_cm.__aexit__.return_value = False
|
|
|
|
mock_saver_cls = MagicMock()
|
|
mock_saver_cls.from_conn_string.return_value = mock_cm
|
|
|
|
mock_module = MagicMock()
|
|
mock_module.AsyncSqliteSaver = mock_saver_cls
|
|
|
|
with (
|
|
patch.dict(sys.modules, {"langgraph.checkpoint.sqlite.aio": mock_module}),
|
|
patch("deerflow.runtime.checkpointer.async_provider.asyncio.to_thread", new_callable=AsyncMock) as mock_to_thread,
|
|
patch(
|
|
"deerflow.runtime.checkpointer.async_provider.resolve_sqlite_conn_str",
|
|
return_value="/tmp/resolved/test.db",
|
|
),
|
|
):
|
|
async with make_checkpointer(mock_config) as saver:
|
|
assert saver is mock_saver
|
|
|
|
mock_to_thread.assert_awaited_once()
|
|
called_fn, called_path = mock_to_thread.await_args.args
|
|
assert called_fn.__name__ == "ensure_sqlite_parent_dir"
|
|
assert called_path == "/tmp/resolved/test.db"
|
|
mock_saver_cls.from_conn_string.assert_called_once_with("/tmp/resolved/test.db")
|
|
mock_saver.setup.assert_awaited_once()
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# app_config.py integration
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
class TestAppConfigLoadsCheckpointer:
|
|
def test_load_checkpointer_section(self):
|
|
"""AppConfig with checkpointer section has the correct config."""
|
|
cfg = _make_config(CheckpointerConfig(type="memory"))
|
|
assert cfg.checkpointer is not None
|
|
assert cfg.checkpointer.type == "memory"
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# DeerFlowClient falls back to config checkpointer
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
class TestClientCheckpointerFallback:
|
|
def test_client_uses_config_checkpointer_when_none_provided(self):
|
|
"""DeerFlowClient._ensure_agent falls back to get_checkpointer(app_config) when checkpointer=None."""
|
|
# This is a structural test — verifying the fallback path exists.
|
|
cfg = _make_config(CheckpointerConfig(type="memory"))
|
|
assert cfg.checkpointer is not None
|