test: widget test per il layer di presentazione

Prima era esercitato solo dall'integration test su emulatore: - converter_page: ricerca, stati vuoti, selezione, calcolo, swap, reset - shopping_list_page: aggiunta, contatore, sezione completati, dialog svuota - meal_planner_page: 7 card, giorno espanso, genera lista, dialog svuota, stato del pulsante Condividi - qr_share_sheet: QR per piano valido, errore oltre il limite, chiusura - app (BitePlanApp): navigazione fra i tab, bottom sheet informazioni - guide_page e info_bottom_sheet: contenuti e navigazione alla guida - empty_state: icona, titolo, sottotitolo opzionale - coverage_helper: importa tutta lib/ così lcov include anche i file non toccati da alcun test Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-12 20:08:49 +02:00
parent 9384bd6117
commit d94bd5fdf7
9 changed files with 623 additions and 0 deletions
@@ -0,0 +1,134 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:biteplan/features/meal_planner/presentation/pages/meal_planner_page.dart';
+import 'package:biteplan/features/meal_planner/presentation/widgets/meal_card.dart';
+import 'package:biteplan/features/meal_planner/providers/meal_planner_provider.dart';
+import 'package:biteplan/features/shopping_list/providers/shopping_list_provider.dart';
+import '../../../helpers/pump_app.dart';
+
+Widget _page({
+  required MealPlannerProvider meals,
+  required ShoppingListProvider shopping,
+  VoidCallback? onGoShopping,
+}) =>
+    MultiProvider(
+      providers: [
+        ChangeNotifierProvider.value(value: meals),
+        ChangeNotifierProvider.value(value: shopping),
+      ],
+      child: Scaffold(
+        body: MealPlannerPage(onGoShopping: onGoShopping ?? () {}),
+      ),
+    );
+
+String get _todayId {
+  const ids = [
+    '',
+    'lunedi',
+    'martedi',
+    'mercoledi',
+    'giovedi',
+    'venerdi',
+    'sabato',
+    'domenica',
+  ];
+  return ids[DateTime.now().weekday];
+}
+
+void main() {
+  late MealPlannerProvider meals;
+  late ShoppingListProvider shopping;
+
+  setUp(() async {
+    SharedPreferences.setMockInitialValues({});
+    meals = MealPlannerProvider();
+    shopping = ShoppingListProvider();
+    await meals.load();
+    await shopping.load();
+  });
+
+  Future<void> pumpPage(WidgetTester tester, {VoidCallback? onGoShopping}) async {
+    await tester.binding.setSurfaceSize(const Size(800, 1800));
+    addTearDown(() => tester.binding.setSurfaceSize(null));
+    await tester.pumpApp(
+        _page(meals: meals, shopping: shopping, onGoShopping: onGoShopping));
+  }
+
+  group('MealPlannerPage', () {
+    testWidgets('mostra le 7 card dei giorni', (tester) async {
+      await pumpPage(tester);
+      expect(find.byType(MealCard), findsNWidgets(7));
+    });
+
+    testWidgets('solo la card di oggi è inizialmente espansa', (tester) async {
+      await pumpPage(tester);
+      for (final card in
+          tester.widgetList<MealCard>(find.byType(MealCard))) {
+        expect(card.initiallyExpanded, card.dayId == _todayId,
+            reason: card.dayId);
+      }
+    });
+
+    testWidgets('"Condividi" è disabilitato con piano vuoto', (tester) async {
+      await pumpPage(tester);
+      final button = tester.widget<OutlinedButton>(
+          find.widgetWithText(OutlinedButton, 'Condividi'));
+      expect(button.onPressed, isNull);
+    });
+
+    testWidgets('"Condividi" è abilitato con almeno un pasto', (tester) async {
+      meals.addItem('lunedi', 'pranzo', 'pasta');
+      await pumpPage(tester);
+      final button = tester.widget<OutlinedButton>(
+          find.widgetWithText(OutlinedButton, 'Condividi'));
+      expect(button.onPressed, isNotNull);
+    });
+
+    testWidgets('"Svuota piano" appare solo con pasti presenti',
+        (tester) async {
+      await pumpPage(tester);
+      expect(find.text('Svuota piano'), findsNothing);
+
+      meals.addItem('lunedi', 'pranzo', 'pasta');
+      await tester.pump();
+      expect(find.text('Svuota piano'), findsOneWidget);
+    });
+
+    testWidgets('"Genera lista" popola la spesa e chiama onGoShopping',
+        (tester) async {
+      meals.addItem('lunedi', 'pranzo', 'pasta');
+      meals.addItem('martedi', 'cena', 'pollo');
+      var navigated = false;
+      await pumpPage(tester, onGoShopping: () => navigated = true);
+
+      await tester.tap(find.text('Genera lista della spesa'));
+      await tester.pump();
+
+      expect(navigated, isTrue);
+      expect(shopping.items.map((i) => i.name),
+          containsAll(['pasta', 'pollo']));
+    });
+
+    testWidgets('"Svuota piano" con Annulla mantiene i pasti', (tester) async {
+      meals.addItem('lunedi', 'pranzo', 'pasta');
+      await pumpPage(tester);
+      await tester.tap(find.widgetWithText(OutlinedButton, 'Svuota piano'));
+      await tester.pumpAndSettle();
+      await tester.tap(find.text('Annulla'));
+      await tester.pumpAndSettle();
+      expect(meals.plan.hasAnyMeal, isTrue);
+    });
+
+    testWidgets('"Svuota piano" con Svuota azzera il piano', (tester) async {
+      meals.addItem('lunedi', 'pranzo', 'pasta');
+      await pumpPage(tester);
+      await tester.tap(find.widgetWithText(OutlinedButton, 'Svuota piano'));
+      await tester.pumpAndSettle();
+      await tester.tap(find.text('Svuota'));
+      await tester.pumpAndSettle();
+      expect(meals.plan.hasAnyMeal, isFalse);
+    });
+  });
+}