fixes before build

test/catalog_test.dart

@@ -6,8 +6,29 @@ import 'test_helpers.dart';
 void main() {
   ensureTestSqlite();
 
-  test('deleting a product keeps the trip line and drops the catalog row',
-      () async {
+  test(
+    'deleting a product keeps the trip line and drops the catalog row',
+    () async {
+      final repository = memoryRepository();
+      final shopId = await repository.saveShop(
+        supermarket: 'Jumbo',
+        shoppedAt: DateTime(2026, 8, 12),
+        items: [LineItem(id: '1', name: 'Milk', price: 1.5)],
+      );
+
+      final products = await repository.getAll();
+      expect(products, hasLength(1));
+      await repository.deleteProduct(products.single.id);
+
+      expect(await repository.getAll(), isEmpty);
+      final items = await repository.getShopItems(shopId);
+      expect(items, hasLength(1));
+      expect(items.single.name, 'Milk');
+      expect(items.single.productId, isNull);
+    },
+  );
+
+  test('addShopItem appends a line and updates the trip total', () async {
     final repository = memoryRepository();
     final shopId = await repository.saveShop(
       supermarket: 'Jumbo',
@@ -15,15 +36,20 @@ void main() {
       items: [LineItem(id: '1', name: 'Milk', price: 1.5)],
     );
 
-    final products = await repository.getAll();
-    expect(products, hasLength(1));
-    await repository.deleteProduct(products.single.id);
+    await repository.addShopItem(
+      shopId: shopId,
+      item: LineItem(id: '2', name: 'Bread', price: 2),
+    );
 
-    expect(await repository.getAll(), isEmpty);
+    final shop = (await repository.getShop(shopId))!;
+    expect(shop.total, 3.5);
     final items = await repository.getShopItems(shopId);
-    expect(items, hasLength(1));
-    expect(items.single.name, 'Milk');
-    expect(items.single.productId, isNull);
+    expect(items, hasLength(2));
+    expect(items.map((item) => item.name), ['Milk', 'Bread']);
+    expect((await repository.getAll()).map((product) => product.name).toSet(), {
+      'Milk',
+      'Bread',
+    });
   });
 
   test('deleting all products leaves shopping trips in place', () async {