"""运输计划解析司机：车辆未关联司机时允许为空。"""
from __future__ import annotations

from unittest.mock import MagicMock

from app.services.pl_plan_service import _resolve_driver


def test_resolve_driver_without_vehicle_link_returns_none():
    """未显式选司机、车辆也无关联司机时，应返回空三元组而非 400。"""
    db = MagicMock()
    db.query.return_value.filter.return_value.order_by.return_value.first.return_value = None

    result = _resolve_driver(db, "tenant-1", "vehicle-1", None)

    assert result == (None, None, None)


def test_resolve_driver_with_explicit_id_returns_personnel():
    db = MagicMock()
    personnel = MagicMock()
    personnel.id = "driver-1"
    personnel.personnel_name = "张三"
    personnel.phone_no = "13800000000"
    db.query.return_value.filter.return_value.first.return_value = personnel

    result = _resolve_driver(db, "tenant-1", "vehicle-1", "driver-1")

    assert result == ("driver-1", "张三", "13800000000")