"""职位列表 boundUserNames enrichment。"""
import inspect

from app.crud import post as post_crud


class _DummySession:
    def query(self, *args, **kwargs):  # pragma: no cover
        raise AssertionError("空入参不应访问数据库")


def test_bound_user_names_by_post_ids_empty():
    db = _DummySession()
    assert post_crud._bound_user_names_by_post_ids(db, [], "zkxw") == {}
    assert post_crud._bound_user_names_by_post_ids(db, ["p1"], "") == {}


def test_user_display_name_prefers_nick():
    assert post_crud._user_display_name("张三", "zhangsan") == "张三"
    assert post_crud._user_display_name("", "zhangsan") == "zhangsan"
    assert post_crud._user_display_name("  ", "u1") == "u1"
    assert post_crud._user_display_name(None, None) == ""


def test_list_posts_enriches_bound_user_names():
    source = inspect.getsource(post_crud.list_posts)
    assert "_bound_user_names_by_post_ids" in source
    assert "bound_user_names" in source or "boundUserNames" in source