import sys
from pathlib import Path

import pytest

sys.path.insert(0, str(Path(__file__).resolve().parent.parent))

from router_system.router import build_router


@pytest.fixture()
def router():
    """共享的 mock 全链路路由实例（零依赖、离线可跑）"""
    return build_router()

@pytest.fixture()
def kb():
    """v2 验证接地用的知识库实例（facts 对照）。"""
    from router_system.knowledge import KnowledgeBase
    return KnowledgeBase()