feat(flags): Feature-Flags aus Config-Datei; Gutschriften-Abschnitt abschaltbar
- Schalter stehen in assets/feature_flags.json (Key -> enabled + Beschreibung) statt als Konstanten im Code - Enum Feature buendelt die stabilen Keys; FeatureFlags liest die Datei, ignoriert unbekannte Keys und nutzt fuer fehlende den Default aus dem Enum - Laden beim App-Start im AppBloc, bereitgestellt per RepositoryProvider; FeatureGate blendet Bereiche bei inaktivem Feature komplett aus - articles.credit_section = false: Abschnitt "Gutschriften" im Artikel-Step ist ausgeblendet - Bisheriges Stepper-Flag migriert (articles.credit_amount_stepper); die fuenf ungenutzten statischen Flags mit veralteten Kommentaren entfernt - Tests: Asset enthaelt alle Keys, Parsing, Defaults, FeatureGate Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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test/feature_flags_test.dart
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86
test/feature_flags_test.dart
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:hl_lieferservice/feature/feature_flags/feature.dart';
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import 'package:hl_lieferservice/feature/feature_flags/feature_flags.dart';
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import 'package:hl_lieferservice/feature/feature_flags/feature_gate.dart';
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Map<String, dynamic> _asset() =>
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jsonDecode(File('assets/feature_flags.json').readAsStringSync())
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as Map<String, dynamic>;
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void main() {
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group('assets/feature_flags.json', () {
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test('enthält jeden Feature-Key genau so, wie er im Code steht', () {
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final keys = (_asset()['features'] as Map<String, dynamic>).keys.toSet();
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for (final f in Feature.values) {
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expect(keys, contains(f.key), reason: 'Key fehlt: ${f.key}');
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}
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});
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test('Gutschriften-Abschnitt ist aktuell deaktiviert', () {
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final flags = FeatureFlags.fromJson(_asset());
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expect(flags.isEnabled(Feature.articlesCreditSection), isFalse);
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});
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});
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group('FeatureFlags.fromJson', () {
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test('fehlender Key fällt auf den Default zurück', () {
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final flags = FeatureFlags.fromJson({'features': <String, dynamic>{}});
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for (final f in Feature.values) {
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expect(flags.isEnabled(f), f.defaultEnabled);
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}
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});
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test('unbekannte Keys werden ignoriert', () {
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final flags = FeatureFlags.fromJson({
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'features': {
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'gibt.es.nicht': {'enabled': true},
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'articles.credit_section': {'enabled': false},
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},
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});
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expect(flags.isEnabled(Feature.articlesCreditSection), isFalse);
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});
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test('kein bool bei enabled ist ein Fehler', () {
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expect(
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() => FeatureFlags.fromJson({
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'features': {
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'articles.credit_section': {'enabled': 'nein'},
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},
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}),
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throwsFormatException,
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);
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});
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});
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group('FeatureGate', () {
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Future<void> pumpGate(WidgetTester tester, {required bool enabled}) {
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return tester.pumpWidget(
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RepositoryProvider.value(
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value: FeatureFlags({Feature.articlesCreditSection.key: enabled}),
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child: const MaterialApp(
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home: FeatureGate(
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feature: Feature.articlesCreditSection,
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child: Text('Gutschriften'),
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),
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),
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),
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);
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}
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testWidgets('zeigt den Inhalt bei aktivem Feature', (tester) async {
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await pumpGate(tester, enabled: true);
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expect(find.text('Gutschriften'), findsOneWidget);
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});
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testWidgets('blendet den Inhalt bei inaktivem Feature aus', (tester) async {
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await pumpGate(tester, enabled: false);
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expect(find.text('Gutschriften'), findsNothing);
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});
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});
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}
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