Fix normalized quantity basis

tests/test_enrich_giant.py

@@ -111,9 +111,25 @@ class EnrichGiantTests(unittest.TestCase):
         self.assertEqual("weight", row["measure_type"])
         self.assertEqual("6", row["pack_qty"])
         self.assertEqual("7.5", row["size_value"])
+        self.assertEqual("90", row["normalized_quantity"])
+        self.assertEqual("oz", row["normalized_quantity_unit"])
         self.assertEqual("0.0667", row["price_per_oz"])
         self.assertEqual("1.0667", row["price_per_lb"])
 
+    def test_derive_normalized_quantity_handles_count_volume_and_each(self):
+        self.assertEqual(
+            ("18", "count"),
+            enrich_giant.derive_normalized_quantity("1", "", "", "18", "count"),
+        )
+        self.assertEqual(
+            ("3.48", "qt"),
+            enrich_giant.derive_normalized_quantity("2", "1.74", "qt", "", "volume"),
+        )
+        self.assertEqual(
+            ("2", "each"),
+            enrich_giant.derive_normalized_quantity("2", "", "", "", "each"),
+        )
+
     def test_build_items_enriched_reads_raw_order_files_and_writes_csv(self):
         with tempfile.TemporaryDirectory() as tmpdir:
             raw_dir = Path(tmpdir) / "raw"