"""质检物料批次列表：剩余库存过滤语义。"""
import unittest
from decimal import Decimal

from app.crud.qc_material_batch_stock_status import (
    batch_matches_stock_status,
    normalize_batch_stock_status,
)


class TestNormalizeBatchStockStatus(unittest.TestCase):
    def test_available_and_exhausted(self):
        self.assertEqual(normalize_batch_stock_status("available"), "available")
        self.assertEqual(normalize_batch_stock_status("exhausted"), "exhausted")
        self.assertEqual(normalize_batch_stock_status(" Available "), "available")

    def test_all_empty_invalid_map_to_none(self):
        self.assertIsNone(normalize_batch_stock_status(None))
        self.assertIsNone(normalize_batch_stock_status(""))
        self.assertIsNone(normalize_batch_stock_status("all"))
        self.assertIsNone(normalize_batch_stock_status("bogus"))


class TestBatchMatchesStockStatus(unittest.TestCase):
    def test_all_always_true(self):
        self.assertTrue(batch_matches_stock_status(0, "all"))
        self.assertTrue(batch_matches_stock_status(1, None))

    def test_available_gt_zero(self):
        self.assertTrue(batch_matches_stock_status(Decimal("0.1"), "available"))
        self.assertFalse(batch_matches_stock_status(0, "available"))
        self.assertFalse(batch_matches_stock_status(Decimal("0"), "available"))

    def test_exhausted_eq_zero(self):
        self.assertTrue(batch_matches_stock_status(0, "exhausted"))
        self.assertTrue(batch_matches_stock_status(Decimal("0.0000"), "exhausted"))
        self.assertFalse(batch_matches_stock_status(1, "exhausted"))