added categories, import export, settings

test/backup_format_test.dart

@@ -0,0 +1,78 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:receipity/services/backup_format.dart';
+
+void main() {
+  test('round-trips a backup document', () {
+    final original = const BackupDocument(
+      version: 1,
+      exportedAt: '2026-08-29T12:00:00.000',
+      darkMode: true,
+      supermarkets: [
+        {'id': 1, 'name': 'Jumbo', 'color': 0xFFEEC21B, 'sort_order': 0},
+      ],
+      products: [
+        {
+          'id': 1,
+          'name': 'Milk',
+          'normalized_name': 'MILK',
+          'last_price': 1.5,
+          'times_seen': 2,
+          'favourite': 1,
+          'image_path': 'products/product_1.jpg',
+          'supermarket': 'Jumbo',
+          'notes': 'Organic',
+          'created_at': '2026-08-29T12:00:00.000',
+          'updated_at': '2026-08-29T12:00:00.000',
+        },
+      ],
+      shops: [
+        {
+          'id': 8,
+          'supermarket': 'Jumbo',
+          'shopped_at': '2026-08-29T12:00:00.000',
+          'receipt_image_path': 'receipts/shop_8.jpg',
+          'total': 1.5,
+          'created_at': '2026-08-29T12:00:00.000',
+        },
+      ],
+      shopItems: [
+        {
+          'id': 1,
+          'shop_id': 8,
+          'product_id': 1,
+          'name': 'Milk',
+          'price': 1.5,
+          'quantity': 1,
+          'unit_price': 1.5,
+        },
+      ],
+      images: {'products/product_1.jpg': 'abc123'},
+    );
+
+    final parsed = BackupDocument.parse(original.encode());
+    expect(parsed.darkMode, isTrue);
+    expect(parsed.products.single['name'], 'Milk');
+    expect(parsed.shops.single['id'], 8);
+    expect(parsed.shopItems.single['product_id'], 1);
+    expect(parsed.images['products/product_1.jpg'], 'abc123');
+  });
+
+  test('rejects a file that is not a Receipity backup', () {
+    expect(
+      () => BackupDocument.parse('{"hello":"world"}'),
+      throwsFormatException,
+    );
+  });
+
+  test('maps stored photo paths to backup keys', () {
+    expect(
+      backupImageKey('/data/app_flutter/products/product_12.jpg'),
+      'products/product_12.jpg',
+    );
+    expect(
+      backupImageKey('/data/app_flutter/receipts/shop_3.jpg'),
+      'receipts/shop_3.jpg',
+    );
+    expect(backupImageKey(null), isNull);
+  });
+}

test/fuzzy_test.dart

@@ -0,0 +1,15 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:receipity/utils/fuzzy.dart';
+
+void main() {
+  test('matches substrings and character subsequences', () {
+    expect(fuzzyMatch('melk', 'JUMBO BIO VOLLE MELK'), isTrue);
+    expect(fuzzyMatch('jb melk', 'JUMBO BIO VOLLE MELK'), isTrue);
+    expect(fuzzyMatch('aard', 'AARDBEIEN'), isTrue);
+    expect(fuzzyMatch('xyz', 'AARDBEIEN'), isFalse);
+  });
+
+  test('ranks closer matches higher', () {
+    expect(fuzzyScore('melk', 'MELK')! > fuzzyScore('melk', 'JUMBO BIO VOLLE MELK')!, isTrue);
+  });
+}

test/supermarket_test.dart

@@ -0,0 +1,23 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:receipity/utils/supermarkets.dart';
+
+void main() {
+  test('detects Jumbo and Lidl from receipt text', () {
+    expect(detectSupermarket('Jumbo\nMelk 1,50'), 'Jumbo');
+    expect(
+      detectSupermarket('Dekamarkt\nMelk 1,50', names: ['Dekamarkt']),
+      'Dekamarkt',
+    );
+    expect(detectSupermarket('LIDL SUPERMARKT\nBananas 1.20'), 'Lidl');
+  });
+
+  test('detects Albert Heijn aliases', () {
+    expect(detectSupermarket('Albert Heijn\nKaas 2,00'), 'Albert Heijn');
+    expect(detectSupermarket('AH TO GO\nCoffee 1,80'), 'Albert Heijn');
+    expect(detectSupermarket('AH\nMilk 1.00'), 'Albert Heijn');
+  });
+
+  test('returns null when no supermarket is present', () {
+    expect(detectSupermarket('Milk 1.50\nBread 2.00'), isNull);
+  });
+}

test/widget_test.dart

@@ -6,7 +6,9 @@ import 'package:receipity/review_screen.dart';
 import 'package:receipity/services/product_repository.dart';
 
 void main() {
-  testWidgets('scan screen shows capture actions', (tester) async {
+  testWidgets('scan screen shows capture actions and bottom navigation', (
+    tester,
+  ) async {
     await tester.pumpWidget(ReceipityApp());
 
     expect(find.text('Receipity'), findsOneWidget);
@@ -17,6 +19,9 @@ void main() {
       find.textContaining('Take a photo of a shopping receipt'),
       findsOneWidget,
     );
+    expect(find.text('Products'), findsOneWidget);
+    expect(find.text('Scan'), findsOneWidget);
+    expect(find.text('Shop log'), findsOneWidget);
   });
 
   testWidgets('review screen lists items and can delete one', (tester) async {
@@ -28,7 +33,7 @@ void main() {
             LineItem(id: '2', name: 'Bread', price: 2),
           ],
           rawText: 'Milk 1.50\nBread 2.00',
-          repository: ProductRepository(),
+          repository: ProductRepository(databasePath: ':memory:'),
         ),
       ),
     );
@@ -36,11 +41,28 @@ void main() {
     expect(find.text('Milk'), findsOneWidget);
     expect(find.text('Bread'), findsOneWidget);
     expect(find.text('Add item'), findsOneWidget);
-    expect(find.text('Confirm'), findsOneWidget);
+    expect(find.textContaining('Save trip'), findsOneWidget);
+    expect(find.text('Supermarket'), findsOneWidget);
 
     await tester.drag(find.text('Milk'), const Offset(-500, 0));
     await tester.pumpAndSettle();
     expect(find.text('Milk'), findsNothing);
     expect(find.text('Bread'), findsOneWidget);
   });
+
+  testWidgets('review screen preselects a supermarket from OCR text', (
+    tester,
+  ) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        home: ReviewScreen(
+          items: [LineItem(id: '1', name: 'Milk', price: 1.5)],
+          rawText: 'Jumbo\nMilk 1.50',
+          repository: ProductRepository(databasePath: ':memory:'),
+        ),
+      ),
+    );
+
+    expect(find.text('Jumbo'), findsWidgets);
+  });
 }