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>
This commit is contained in:
2026-07-12 20:08:49 +02:00
parent 9384bd6117
commit d94bd5fdf7
9 changed files with 623 additions and 0 deletions
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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);
});
});
}
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import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:qr_flutter/qr_flutter.dart';
import 'package:biteplan/core/constants/app_constants.dart';
import 'package:biteplan/features/meal_planner/models/meal_plan.dart';
import 'package:biteplan/features/meal_planner/presentation/widgets/qr_share_sheet.dart';
import '../../../helpers/pump_app.dart';
MealPlan _planWith(Map<String, DayPlan> overrides) => MealPlan({
...Map.fromEntries(kDayIds.map((d) => MapEntry(d, DayPlan()))),
...overrides,
});
Future<void> _openSheet(WidgetTester tester, MealPlan plan) async {
await tester.pumpApp(Scaffold(
body: Builder(
builder: (context) => Center(
child: FilledButton(
onPressed: () => showQrShareSheet(context, plan),
child: const Text('apri'),
),
),
),
));
await tester.tap(find.text('apri'));
await tester.pumpAndSettle();
}
void main() {
group('QrShareSheet', () {
testWidgets('piano valido mostra il QR code', (tester) async {
final plan = _planWith({
'lunedi': DayPlan(pranzo: ['pasta'])
});
await _openSheet(tester, plan);
expect(find.text('Condividi piano'), findsOneWidget);
expect(find.byType(QrImageView), findsOneWidget);
});
testWidgets('piano troppo grande mostra il messaggio di errore',
(tester) async {
final plan = _planWith({
for (final d in kDayIds)
d: DayPlan(
colazione: List.generate(
30, (i) => 'alimento molto lungo numero $i della colazione'),
pranzo: List.generate(
30, (i) => 'alimento molto lungo numero $i del pranzo'),
),
});
await _openSheet(tester, plan);
expect(find.textContaining('Dati troppo grandi'), findsOneWidget);
expect(find.byType(QrImageView), findsNothing);
});
testWidgets('il pulsante chiudi fa scomparire il foglio', (tester) async {
final plan = _planWith({
'lunedi': DayPlan(pranzo: ['pasta'])
});
await _openSheet(tester, plan);
await tester.tap(find.byIcon(Icons.close));
await tester.pumpAndSettle();
expect(find.text('Condividi piano'), findsNothing);
});
});
}