test: espandi copertura a 110 test e organizza in gruppi

- Aggiunto converter_provider_test.dart (nuovo): stato iniziale, select, setGrams, result, swapDirection, reset, search - Aggiunto qr_test.dart (nuovo): buildQrPayload e parseMealPlanFromQr con round-trip e casi di errore - meal_planner_provider_test: group(), importPlan(), fallback JSON corrotto - shopping_list_provider_test: group(), addAll con aggregazione quantity, fallback JSON corrotto - shopping_item_test: campi quantity (default, copyWith, JSON round-trip) - shopping_item_tile_test: group(), visualizzazione (xN) - conversion_entry_test: caso limite yieldFactor=0 - meal_card_test: group() - Rimosso widget_test.dart (boilerplate obsoleto) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-17 23:27:19 +02:00
parent 9fcaae9687
commit 65214ac34e
8 changed files with 703 additions and 259 deletions
@@ -0,0 +1,104 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:biteplan/features/meal_planner/qr_codec.dart';
+import 'package:biteplan/features/meal_planner/models/meal_plan.dart';
+import 'package:biteplan/core/constants/app_constants.dart';
+
+void main() {
+  group('buildQrPayload', () {
+    test('genera payload non nullo per piano vuoto', () {
+      final plan = MealPlan.empty(kDayIds);
+      expect(buildQrPayload(plan), isNotNull);
+    });
+
+    test('il payload contiene versione e dati pasti', () {
+      final plan = MealPlan.empty(kDayIds);
+      final payload = buildQrPayload(plan)!;
+      expect(payload, contains('"v":1'));
+      expect(payload, contains('"meals"'));
+    });
+
+    test('il payload include i dati inseriti', () {
+      final plan = MealPlan({
+        ...Map.fromEntries(kDayIds.map((d) => MapEntry(d, DayPlan()))),
+        'lunedi': DayPlan(colazione: ['latte', 'biscotti'], pranzo: ['pasta']),
+      });
+      final payload = buildQrPayload(plan)!;
+      expect(payload, contains('latte'));
+      expect(payload, contains('biscotti'));
+      expect(payload, contains('pasta'));
+    });
+
+    test('restituisce null se payload supera 2953 byte', () {
+      final longName = 'a' * 400;
+      final plan = MealPlan(Map.fromEntries(kDayIds.map((d) => MapEntry(
+        d,
+        DayPlan(
+          colazione: List.generate(5, (_) => longName),
+          pranzo: List.generate(5, (_) => longName),
+          cena: List.generate(5, (_) => longName),
+        ),
+      ))));
+      expect(buildQrPayload(plan), isNull);
+    });
+  });
+
+  group('parseMealPlanFromQr', () {
+    test('round-trip: parse di payload generato da buildQrPayload', () {
+      final plan = MealPlan.empty(kDayIds);
+      final payload = buildQrPayload(plan)!;
+      final (parsed, error) = parseMealPlanFromQr(payload);
+      expect(error, isNull);
+      expect(parsed, isNotNull);
+      for (final day in kDayIds) {
+        expect(parsed!.days.containsKey(day), true);
+      }
+    });
+
+    test('round-trip preserva tutti i pasti', () {
+      final original = MealPlan({
+        ...Map.fromEntries(kDayIds.map((d) => MapEntry(d, DayPlan()))),
+        'lunedi': DayPlan(colazione: ['latte'], pranzo: ['pasta'], cena: ['pollo']),
+        'martedi': DayPlan(cena: ['pesce']),
+      });
+      final payload = buildQrPayload(original)!;
+      final (parsed, error) = parseMealPlanFromQr(payload);
+
+      expect(error, isNull);
+      expect(parsed!.days['lunedi']!.colazione, ['latte']);
+      expect(parsed.days['lunedi']!.pranzo, ['pasta']);
+      expect(parsed.days['lunedi']!.cena, ['pollo']);
+      expect(parsed.days['martedi']!.cena, ['pesce']);
+      expect(parsed.days['mercoledi']!.colazione, isEmpty);
+    });
+
+    test('errore su stringa non JSON', () {
+      final (plan, error) = parseMealPlanFromQr('testo non json');
+      expect(plan, isNull);
+      expect(error, isNotNull);
+    });
+
+    test('errore se versione non è 1', () {
+      final (plan, error) = parseMealPlanFromQr('{"v":2,"meals":{}}');
+      expect(plan, isNull);
+      expect(error, contains('non valido'));
+    });
+
+    test('errore se meals è una lista invece di una mappa', () {
+      final (plan, error) = parseMealPlanFromQr('{"v":1,"meals":[]}');
+      expect(plan, isNull);
+      expect(error, isNotNull);
+    });
+
+    test('errore se struttura di un giorno non è valida', () {
+      final (plan, error) = parseMealPlanFromQr('{"v":1,"meals":{"lunedi":"stringa"}}');
+      expect(plan, isNull);
+      expect(error, isNotNull);
+    });
+
+    test('errore se campo v è assente', () {
+      final (plan, error) = parseMealPlanFromQr('{"meals":{}}');
+      expect(plan, isNull);
+      expect(error, isNotNull);
+    });
+  });
+}