"""子案跨主案挂载（0018）服务层载荷契约。

仅覆盖不依赖数据库与请求上下文的入参校验分支：
_bind_payload 与 _version 均在 get_auth_context/事务之前执行。
"""

from __future__ import annotations

import pytest

from dms.common.errors import InvalidArgumentError
from dms.services.sub_plan_binding_service import bind_sub_plans, unbind_sub_plan


def test_bind_rejects_missing_main_plan_row_version():
    with pytest.raises(InvalidArgumentError) as excinfo:
        bind_sub_plans(1, {"subPlanIds": ["2"]})
    assert excinfo.value.code == "INVALID_ARGUMENT"


def test_bind_rejects_extra_fields():
    with pytest.raises(InvalidArgumentError):
        bind_sub_plans(
            1,
            {"subPlanIds": ["2"], "mainPlanRowVersion": 0, "extra": 1},
        )


def test_bind_rejects_empty_sub_plan_ids():
    with pytest.raises(InvalidArgumentError) as excinfo:
        bind_sub_plans(1, {"subPlanIds": [], "mainPlanRowVersion": 0})
    assert "subPlanIds必须是非空数组" in excinfo.value.message


def test_bind_rejects_non_string_sub_plan_id():
    with pytest.raises(InvalidArgumentError) as excinfo:
        bind_sub_plans(1, {"subPlanIds": [2], "mainPlanRowVersion": 0})
    assert "subPlanIds[0]" in excinfo.value.message


def test_bind_rejects_non_numeric_sub_plan_id():
    with pytest.raises(InvalidArgumentError):
        bind_sub_plans(
            1, {"subPlanIds": ["abc"], "mainPlanRowVersion": 0}
        )


def test_bind_rejects_negative_row_version():
    with pytest.raises(InvalidArgumentError) as excinfo:
        bind_sub_plans(1, {"subPlanIds": ["2"], "mainPlanRowVersion": -1})
    assert "mainPlanRowVersion" in excinfo.value.message


def test_unbind_rejects_negative_row_version():
    with pytest.raises(InvalidArgumentError) as excinfo:
        unbind_sub_plan(1, 2, -1)
    assert "mainPlanRowVersion" in excinfo.value.message