from app.services.pl_personnel_user_bind import assert_sys_user_bind_available


class FakeRow:
    def __init__(self, id, sys_user_id, del_flag=0):
        self.id = id
        self.sys_user_id = sys_user_id
        self.del_flag = del_flag


def test_bind_ok_when_empty():
    assert_sys_user_bind_available(
        existing=[], personnel_id="p1", sys_user_id="u1"
    )


def test_bind_rejects_other_personnel():
    try:
        assert_sys_user_bind_available(
            existing=[FakeRow("p2", "u1")],
            personnel_id="p1",
            sys_user_id="u1",
        )
        assert False, "expected ValueError"
    except ValueError as e:
        assert "已关联" in str(e)


def test_bind_allows_self():
    assert_sys_user_bind_available(
        existing=[FakeRow("p1", "u1")],
        personnel_id="p1",
        sys_user_id="u1",
    )