v2.50.2 — Cloud/Auth-Tests (http-Mocks): LWW-Sync + Token-Ablauf-Pfade
## Testbarkeit (kein neues Package) - CloudService: http.Client injizierbar (Konstruktor-Parameter, Default unverändert) - AuthService: http.Client + TokenSpeicher injizierbar; SecureTokenSpeicher kapselt FlutterSecureStorage, @visibleForTesting AuthService.fuerTests - Alle HTTP-Calls über _client statt Top-Level http.get/post ## test/cloud_service_test.dart (22 Tests) - login: 200/401/Netzwerkfehler - verbinde() ohne Benutzer → Status fehler, kein Request - statusDaten: 200/401(Auth-Fehler)/Netzwerkfehler - syncChanges LWW-Konflikt-Pfade: updated_at bleibt für Client-Vergleich erhalten, leere/fehlende Changes, 401 → [], Netzwerkfehler → [], since-Body - syncAll (LWW-Schreibpfad): 200/401 - Playlists, Favoriten, History, listSongs, delete, globalList inkl. Fehlerpfade ## test/auth_service_test.dart (19 Tests) - initialisieren: 200 → eingeloggt, 401 → Logout + Speicher gelöscht, Netzwerkfehler → Offline-Trust, 5xx → Token bleibt, ohne Token → kein Request - tokenPruefen: 200/401/Netzwerkfehler/503 - login: ok mit Persistenz, 401, 200-ohne-Token (Fall-Through-Regression), Netzwerkfehler - logout löscht Speicher, authHeader mit/ohne Bearer
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import 'dart:convert';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:http/http.dart' as http;
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import 'package:http/testing.dart';
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import 'package:melo_app/services/cloud_service.dart';
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/// CloudService-Tests mit http-Mocks (package:http/testing.dart — Teil von
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/// http, kein neues Package). Abgedeckt: LWW-Sync-Konflikt-Pfade (updated_at
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/// bleibt für den Client-Vergleich erhalten), Auth-Fehler (401) und
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/// Netzwerkfehler (alle Pfade failen sauber statt zu crashen).
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void main() {
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TestWidgetsFlutterBinding.ensureInitialized();
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http.Response jsonOk(Map<String, dynamic> body) =>
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http.Response(jsonEncode(body), 200,
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headers: {'content-type': 'application/json'});
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group('login (Auth)', () {
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test('200 → verbunden (true)', () async {
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final cloud = CloudService(
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client: MockClient((req) async => http.Response('{}', 200)),
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);
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expect(await cloud.login('dustin'), isTrue);
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});
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test('401 (Auth-Fehler) → false', () async {
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final cloud = CloudService(
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client: MockClient((req) async => http.Response('{}', 401)),
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);
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expect(await cloud.login('dustin'), isFalse);
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});
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test('Netzwerkfehler → false (kein Crash)', () async {
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final cloud = CloudService(
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client: MockClient(
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(req) async => throw http.ClientException('Verbindung weg')),
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);
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expect(await cloud.login('dustin'), isFalse);
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});
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});
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group('verbinde()', () {
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test('ohne Benutzer → Status fehler (kein Request)', () async {
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var requests = 0;
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final cloud = CloudService(
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client: MockClient((req) async {
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requests++;
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return http.Response('{}', 200);
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}),
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);
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await cloud.verbinde();
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expect(cloud.verbindungGestartet, isTrue);
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expect(cloud.status, CloudStatus.fehler);
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expect(cloud.istVerbunden, isFalse);
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expect(requests, 0);
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});
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});
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group('statusDaten (Auth-Fehler)', () {
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test('200 → JSON-Map', () async {
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final cloud = CloudService(
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client: MockClient(
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(req) async => jsonOk({'songs': 5, 'users': 2})),
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);
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final d = await cloud.statusDaten();
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expect(d, isNotNull);
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expect(d!['songs'], 5);
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});
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test('401 → null (Token abgelaufen)', () async {
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final cloud = CloudService(
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client: MockClient((req) async => http.Response('{}', 401)),
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);
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expect(await cloud.statusDaten(), isNull);
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});
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test('Netzwerkfehler → null', () async {
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final cloud = CloudService(
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client: MockClient(
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(req) async => throw http.ClientException('offline')),
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);
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expect(await cloud.statusDaten(), isNull);
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});
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});
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group('syncChanges — LWW-Sync-Konflikt-Pfade', () {
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test('parst Changes inkl. updated_at (Grundlage für LWW-Vergleich)',
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() async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({
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'changes': [
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{
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'id': 'song-1',
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'title': 'Neu vom Server',
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'updated_at': '2026-08-04T10:00:00Z',
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},
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{
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'id': 'song-2',
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'title': 'Älterer Eintrag',
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'updated_at': '2026-08-04T09:00:00Z',
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},
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],
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})),
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);
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final changes = await cloud.syncChanges('2026-08-04T08:00:00Z');
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expect(changes, hasLength(2));
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// LWW-Vertrag: Timestamps bleiben unverändert erhalten, damit der
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// Client lokal neueren Stand (Upload via syncAll) von server-neuerem
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// Stand (Übernahme) unterscheiden kann.
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expect(changes[0]['updated_at'], '2026-08-04T10:00:00Z');
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expect(changes[1]['updated_at'], '2026-08-04T09:00:00Z');
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expect(changes[0]['title'], 'Neu vom Server');
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});
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test('leere Changes-Liste → []', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({'changes': []})),
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);
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expect(await cloud.syncChanges('2026-08-04T08:00:00Z'), isEmpty);
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});
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test('fehlendes changes-Feld → []', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({})),
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);
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expect(await cloud.syncChanges('2026-08-04T08:00:00Z'), isEmpty);
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});
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test('401 (Auth-Fehler) → []', () async {
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final cloud = CloudService(
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client: MockClient((req) async => http.Response('{}', 401)),
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);
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expect(await cloud.syncChanges('2026-08-04T08:00:00Z'), isEmpty);
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});
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test('Netzwerkfehler → []', () async {
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final cloud = CloudService(
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client: MockClient(
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(req) async => throw http.ClientException('offline')),
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);
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expect(await cloud.syncChanges('2026-08-04T08:00:00Z'), isEmpty);
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});
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test('sendet since-Timestamp als Body', () async {
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late Map<String, dynamic> gesendeterBody;
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final cloud = CloudService(
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client: MockClient((req) async {
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gesendeterBody = jsonDecode(req.body) as Map<String, dynamic>;
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return jsonOk({'changes': []});
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}),
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);
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await cloud.syncChanges('2026-08-04T08:00:00Z');
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expect(gesendeterBody['since'], '2026-08-04T08:00:00Z');
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});
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});
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group('syncAll (LWW-Schreibpfad)', () {
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test('200 → Status-Map', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({'status': 'ok'})),
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);
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final d = await cloud.syncAll();
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expect(d?['status'], 'ok');
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});
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test('401 → null (Auth-Fehler)', () async {
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final cloud = CloudService(
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client: MockClient((req) async => http.Response('{}', 401)),
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);
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expect(await cloud.syncAll(), isNull);
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});
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});
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group('Playlisten', () {
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test('getPlaylists parst Liste', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({
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'playlists': [
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{'id': 1, 'name': 'Workout'},
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],
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})),
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);
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final list = await cloud.getPlaylists();
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expect(list, hasLength(1));
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expect(list.first['name'], 'Workout');
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});
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test('createPlaylist 200 → Playlist-Objekt', () async {
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final cloud = CloudService(
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client: MockClient((req) async =>
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jsonOk({'playlist': {'id': 7, 'name': 'Neu'}})),
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);
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final p = await cloud.createPlaylist('Neu');
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expect(p?['id'], 7);
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});
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test('deletePlaylist 200 ohne status → false', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({'status': 'ok'})),
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);
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expect(await cloud.deletePlaylist(3), isTrue);
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});
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});
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group('Favoriten', () {
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test('getFavorites parst Liste', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({
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'favorites': [
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{'id': 's1'},
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],
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})),
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);
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final list = await cloud.getFavorites();
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expect(list, hasLength(1));
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expect(list.first['id'], 's1');
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});
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test('syncFavorites mit status ok → true', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({'status': 'ok'})),
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);
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expect(await cloud.syncFavorites(['s1', 's2']), isTrue);
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});
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test('syncFavorites 401 → false (Auth-Fehler)', () async {
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final cloud = CloudService(
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client: MockClient((req) async => http.Response('{}', 401)),
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);
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expect(await cloud.syncFavorites(['s1']), isFalse);
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});
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});
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group('History & Songs', () {
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test('getHistory parst history-Liste', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({
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'history': [
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{'song_id': 's1', 'played_at': '2026-08-04T10:00:00Z'},
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],
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})),
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);
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final list = await cloud.getHistory();
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expect(list, hasLength(1));
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expect(list.first['song_id'], 's1');
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});
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test('listSongs parst songs-Liste', () async {
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final cloud = CloudService(
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client: MockClient((req) async => jsonOk({
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'songs': [
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{'id': 's1', 'title': 'Titel'},
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],
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})),
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);
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final list = await cloud.listSongs();
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expect(list, hasLength(1));
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expect(list.first['title'], 'Titel');
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});
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});
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group('delete / globalList (Fehlerpfade)', () {
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test('delete 200 → true, 401 → false', () async {
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final cloudOk = CloudService(
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client: MockClient((req) async => http.Response('{}', 200)),
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);
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expect(await cloudOk.delete('s1'), isTrue);
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final cloud401 = CloudService(
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client: MockClient((req) async => http.Response('{}', 401)),
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);
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expect(await cloud401.delete('s1'), isFalse);
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});
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test('globalList 200 → Songs, 401 → []', () async {
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final cloudOk = CloudService(
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client: MockClient((req) async =>
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jsonOk({'songs': [{'id': 'g1'}]})),
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);
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expect(await cloudOk.globalList(), hasLength(1));
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final cloud401 = CloudService(
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client: MockClient((req) async => http.Response('{}', 401)),
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);
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expect(await cloud401.globalList(), isEmpty);
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});
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});
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}
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