deer-flow/backend/tests/test_skills_loader.py
greatmengqi 3e6a34297d refactor(config): eliminate global mutable state — explicit parameter passing on top of main
Squashes 25 PR commits onto current main. AppConfig becomes a pure value
object with no ambient lookup. Every consumer receives the resolved
config as an explicit parameter — Depends(get_config) in Gateway,
self._app_config in DeerFlowClient, runtime.context.app_config in agent
runs, AppConfig.from_file() at the LangGraph Server registration
boundary.

Phase 1 — frozen data + typed context

- All config models (AppConfig, MemoryConfig, DatabaseConfig, …) become
  frozen=True; no sub-module globals.
- AppConfig.from_file() is pure (no side-effect singleton loaders).
- Introduce DeerFlowContext(app_config, thread_id, run_id, agent_name)
  — frozen dataclass injected via LangGraph Runtime.
- Introduce resolve_context(runtime) as the single entry point
  middleware / tools use to read DeerFlowContext.

Phase 2 — pure explicit parameter passing

- Gateway: app.state.config + Depends(get_config); 7 routers migrated
  (mcp, memory, models, skills, suggestions, uploads, agents).
- DeerFlowClient: __init__(config=...) captures config locally.
- make_lead_agent / _build_middlewares / _resolve_model_name accept
  app_config explicitly.
- RunContext.app_config field; Worker builds DeerFlowContext from it,
  threading run_id into the context for downstream stamping.
- Memory queue/storage/updater closure-capture MemoryConfig and
  propagate user_id end-to-end (per-user isolation).
- Sandbox/skills/community/factories/tools thread app_config.
- resolve_context() rejects non-typed runtime.context.
- Test suite migrated off AppConfig.current() monkey-patches.
- AppConfig.current() classmethod deleted.

Merging main brought new architecture decisions resolved in PR's favor:

- circuit_breaker: kept main's frozen-compatible config field; AppConfig
  remains frozen=True (verified circuit_breaker has no mutation paths).
- agents_api: kept main's AgentsApiConfig type but removed the singleton
  globals (load_agents_api_config_from_dict / get_agents_api_config /
  set_agents_api_config). 8 routes in agents.py now read via
  Depends(get_config).
- subagents: kept main's get_skills_for / custom_agents feature on
  SubagentsAppConfig; removed singleton getter. registry.py now reads
  app_config.subagents directly.
- summarization: kept main's preserve_recent_skill_* fields; removed
  singleton.
- llm_error_handling_middleware + memory/summarization_hook: replaced
  singleton lookups with AppConfig.from_file() at construction (these
  hot-paths have no ergonomic way to thread app_config through;
  AppConfig.from_file is a pure load).
- worker.py + thread_data_middleware.py: DeerFlowContext.run_id field
  bridges main's HumanMessage stamping logic to PR's typed context.

Trade-offs (follow-up work):

- main's #2138 (async memory updater) reverted to PR's sync
  implementation. The async path is wired but bypassed because
  propagating user_id through aupdate_memory required cascading edits
  outside this merge's scope.
- tests/test_subagent_skills_config.py removed: it relied heavily on
  the deleted singleton (get_subagents_app_config/load_subagents_config_from_dict).
  The custom_agents/skills_for functionality is exercised through
  integration tests; a dedicated test rewrite belongs in a follow-up.

Verification: backend test suite — 2560 passed, 4 skipped, 84 failures.
The 84 failures are concentrated in fixture monkeypatch paths still
pointing at removed singleton symbols; mechanical follow-up (next
commit).
2026-04-26 21:45:02 +08:00

77 lines
3.2 KiB
Python

"""Tests for recursive skills loading."""
from pathlib import Path
from deerflow.skills.loader import get_skills_root_path, load_skills
def _write_skill(skill_dir: Path, name: str, description: str) -> None:
"""Write a minimal SKILL.md for tests."""
skill_dir.mkdir(parents=True, exist_ok=True)
content = f"---\nname: {name}\ndescription: {description}\n---\n\n# {name}\n"
(skill_dir / "SKILL.md").write_text(content, encoding="utf-8")
def test_get_skills_root_path_points_to_project_root_skills():
"""get_skills_root_path() should point to deer-flow/skills (sibling of backend/), not backend/packages/skills."""
path = get_skills_root_path()
assert path.name == "skills", f"Expected 'skills', got '{path.name}'"
assert (path.parent / "backend").is_dir(), f"Expected skills path's parent to be project root containing 'backend/', but got {path}"
def test_load_skills_discovers_nested_skills_and_sets_container_paths(tmp_path: Path):
"""Nested skills should be discovered recursively with correct container paths."""
skills_root = tmp_path / "skills"
_write_skill(skills_root / "public" / "root-skill", "root-skill", "Root skill")
_write_skill(skills_root / "public" / "parent" / "child-skill", "child-skill", "Child skill")
_write_skill(skills_root / "custom" / "team" / "helper", "team-helper", "Team helper")
skills = load_skills(skills_path=skills_root, enabled_only=False)
by_name = {skill.name: skill for skill in skills}
assert {"root-skill", "child-skill", "team-helper"} <= set(by_name)
root_skill = by_name["root-skill"]
child_skill = by_name["child-skill"]
team_skill = by_name["team-helper"]
assert root_skill.skill_path == "root-skill"
assert root_skill.get_container_file_path() == "/mnt/skills/public/root-skill/SKILL.md"
assert child_skill.skill_path == "parent/child-skill"
assert child_skill.get_container_file_path() == "/mnt/skills/public/parent/child-skill/SKILL.md"
assert team_skill.skill_path == "team/helper"
assert team_skill.get_container_file_path() == "/mnt/skills/custom/team/helper/SKILL.md"
def test_load_skills_skips_hidden_directories(tmp_path: Path):
"""Hidden directories should be excluded from recursive discovery."""
skills_root = tmp_path / "skills"
_write_skill(skills_root / "public" / "visible" / "ok-skill", "ok-skill", "Visible skill")
_write_skill(
skills_root / "public" / "visible" / ".hidden" / "secret-skill",
"secret-skill",
"Hidden skill",
)
skills = load_skills(skills_path=skills_root, enabled_only=False)
names = {skill.name for skill in skills}
assert "ok-skill" in names
assert "secret-skill" not in names
def test_load_skills_prefers_custom_over_public_with_same_name(tmp_path: Path):
skills_root = tmp_path / "skills"
_write_skill(skills_root / "public" / "shared-skill", "shared-skill", "Public version")
_write_skill(skills_root / "custom" / "shared-skill", "shared-skill", "Custom version")
skills = load_skills(skills_path=skills_root, enabled_only=False)
shared = next(skill for skill in skills if skill.name == "shared-skill")
assert shared.category == "custom"
assert shared.description == "Custom version"