"""临时质检对象：系统产品 / 外部编号互斥归一化。"""

import unittest

from app.crud.temp_qc_target import resolve_temp_qc_target


class TestResolveTempQcTarget(unittest.TestCase):
    def test_cell_product_only(self):
        cp, ext = resolve_temp_qc_target(
            cell_product_id="  pid-1  ", external_target_code="  "
        )
        self.assertEqual(cp, "pid-1")
        self.assertIsNone(ext)

    def test_external_only(self):
        cp, ext = resolve_temp_qc_target(
            cell_product_id="", external_target_code="  EXT-1  "
        )
        self.assertIsNone(cp)
        self.assertEqual(ext, "EXT-1")

    def test_both_raises(self):
        with self.assertRaises(ValueError) as ctx:
            resolve_temp_qc_target(
                cell_product_id="pid", external_target_code="EXT"
            )
        self.assertIn("不能同时", str(ctx.exception))

    def test_neither_raises(self):
        with self.assertRaises(ValueError) as ctx:
            resolve_temp_qc_target(cell_product_id="", external_target_code="")
        self.assertIn("质检对象", str(ctx.exception))

    def test_external_too_long(self):
        with self.assertRaises(ValueError) as ctx:
            resolve_temp_qc_target(
                cell_product_id="", external_target_code="x" * 65
            )
        self.assertIn("64", str(ctx.exception))


if __name__ == "__main__":
    unittest.main()