feat: 百度通用文字识别提取供应商/日期（config api_key 持久化）

tests/test_order_metadata_db.py

@@ -0,0 +1,60 @@
+"""OrderMetadataDB 单元测试。"""
+import unittest
+import sys
+import tempfile
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__).parent.parent))
+
+from app.core.db.order_metadata_db import OrderMetadataDB
+
+
+class TestOrderMetadataDB(unittest.TestCase):
+    def setUp(self):
+        self.tmpdir = tempfile.mkdtemp()
+        self.db_path = str(Path(self.tmpdir) / "test_cache.db")
+        self.db = OrderMetadataDB(self.db_path)
+
+    def test_save_and_get(self):
+        ok = self.db.save("hash001", supplier="永辉超市", bill_date="20260717",
+                          total_amount=656.00, raw_supplier_text="永辉超市供货单")
+        self.assertTrue(ok)
+        row = self.db.get("hash001")
+        self.assertIsNotNone(row)
+        self.assertEqual(row["supplier"], "永辉超市")
+        self.assertEqual(row["bill_date"], "20260717")
+        self.assertAlmostEqual(row["total_amount"], 656.00)
+
+    def test_upsert(self):
+        self.db.save("hash001", supplier="永辉", bill_date="20260717", total_amount=100)
+        self.db.save("hash001", supplier="永辉2", bill_date="20260718", total_amount=200)
+        row = self.db.get("hash001")
+        self.assertEqual(row["supplier"], "永辉2")
+        self.assertEqual(row["bill_date"], "20260718")
+        self.assertAlmostEqual(row["total_amount"], 200)
+
+    def test_get_missing(self):
+        self.assertIsNone(self.db.get("nonexistent"))
+
+    def test_list_all(self):
+        for i in range(3):
+            self.db.save(f"hash{i}", supplier=f"s{i}")
+        rows = self.db.list_all()
+        self.assertEqual(len(rows), 3)
+
+    def test_count(self):
+        self.assertEqual(self.db.count(), 0)
+        self.db.save("h1")
+        self.db.save("h2")
+        self.assertEqual(self.db.count(), 2)
+
+    def test_empty_hash_skipped(self):
+        self.assertFalse(self.db.save("", supplier="x"))
+
+    def test_delete(self):
+        self.db.save("h1")
+        self.db.delete("h1")
+        self.assertIsNone(self.db.get("h1"))
+
+
+if __name__ == '__main__':
+    unittest.main()