test: Regressionstests für Soft-Logout-Guard und Power-Levels-Schutz
Erste Testsuite des Projekts, gezielt für die zwei heiligsten Codepfade: guardedSoftLogoutRefresh (wirft nie -> kein SDK-logout()+clear(), Uta-Bug) und updatePowerLevelsSafely (Selbst-Aussperr-Schutz, Server-Stand bleibt erhalten). 10 Tests, alle gruen auf dem Pi (flutter test laeuft headless). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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import 'package:flutter_test/flutter_test.dart';
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import 'package:matrix/matrix.dart';
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import 'package:pyramid/features/spaces/space_admin_dialog.dart';
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/// Fake-Client für `updatePowerLevelsSafely`: liefert einen vorgegebenen
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/// Server-Stand des power_levels-Events und zeichnet auf, was (wenn
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/// überhaupt) zurückgeschrieben wird. Alles andere → NoSuchMethodError.
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class _FakeClient implements Client {
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_FakeClient({required this.serverState, this.getError});
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Map<String, Object?> serverState;
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MatrixException? getError;
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Map<String, Object?>? written;
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@override
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String? get userID => '@me:pyramid.example';
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@override
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Future<Map<String, Object?>> getRoomStateWithKey(
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String roomId,
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String eventType,
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String stateKey, {
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Format? format,
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}) async {
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final err = getError;
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if (err != null) throw err;
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return serverState;
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}
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@override
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Future<String> setRoomStateWithKey(
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String roomId,
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String eventType,
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String stateKey,
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Map<String, Object?> body,
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) async {
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written = body;
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return r'$neuesEvent';
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}
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@override
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dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
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}
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class _FakeRoom implements Room {
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_FakeRoom(this.client);
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@override
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final Client client;
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@override
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String get id => '!raum:pyramid.example';
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@override
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dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
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}
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void main() {
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test('Server-Stand bleibt erhalten: fremde Einträge werden nie überschrieben '
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'(genau der Bug, der schon einmal Admins ausgesperrt hat)', () async {
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final client = _FakeClient(serverState: {
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'users': {'@me:pyramid.example': 100, '@uta:pyramid.example': 50},
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'users_default': 0,
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'state_default': 50,
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});
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final room = _FakeRoom(client);
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await updatePowerLevelsSafely(room, (content) {
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(content['users'] as Map<String, dynamic>)['@neu:pyramid.example'] = 50;
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});
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final users = client.written!['users'] as Map;
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expect(users['@uta:pyramid.example'], 50,
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reason: 'bestehender Server-Eintrag muss überleben');
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expect(users['@me:pyramid.example'], 100);
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expect(users['@neu:pyramid.example'], 50);
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});
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test('Selbst-Degradierung unter das nötige Level wird abgebrochen, '
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'nichts wird geschrieben', () async {
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final client = _FakeClient(serverState: {
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'users': {'@me:pyramid.example': 100},
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'state_default': 50,
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});
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final room = _FakeRoom(client);
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await expectLater(
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updatePowerLevelsSafely(room, (content) {
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(content['users'] as Map<String, dynamic>)['@me:pyramid.example'] = 0;
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}),
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throwsException,
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);
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expect(client.written, isNull);
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});
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test('eigener Eintrag entfernt → Fallback auf users_default greift und '
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'schützt ebenfalls', () async {
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final client = _FakeClient(serverState: {
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'users': {'@me:pyramid.example': 100},
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'users_default': 0,
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});
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final room = _FakeRoom(client);
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await expectLater(
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updatePowerLevelsSafely(room, (content) {
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(content['users'] as Map<String, dynamic>)
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.remove('@me:pyramid.example');
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}),
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throwsException,
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);
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expect(client.written, isNull);
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});
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test('explizites events[m.room.power_levels]-Erfordernis wird respektiert',
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() async {
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final client = _FakeClient(serverState: {
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'users': {'@me:pyramid.example': 60},
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'events': {'m.room.power_levels': 75},
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'state_default': 50,
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});
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final room = _FakeRoom(client);
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// 60 < 75 → muss abbrechen, obwohl state_default (50) erfüllt wäre.
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await expectLater(
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updatePowerLevelsSafely(room, (_) {}),
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throwsException,
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);
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expect(client.written, isNull);
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});
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test('fehlendes power_levels-Event (M_NOT_FOUND): Start mit leerem Event, '
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'Schreiben nur wenn man sich selbst hoch genug setzt', () async {
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final client = _FakeClient(
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serverState: {},
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getError: MatrixException.fromJson(
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{'errcode': 'M_NOT_FOUND', 'error': 'Event not found.'}),
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);
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final room = _FakeRoom(client);
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// Ohne eigenen Eintrag: users_default 0 < state_default-Fallback 50 → Abbruch.
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await expectLater(
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updatePowerLevelsSafely(room, (_) {}),
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throwsException,
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);
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expect(client.written, isNull);
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// Setzt man sich selbst auf 100, darf geschrieben werden.
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await updatePowerLevelsSafely(room, (content) {
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(content['users'] as Map<String, dynamic>)['@me:pyramid.example'] = 100;
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});
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final users = client.written!['users'] as Map;
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expect(users['@me:pyramid.example'], 100);
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});
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test('andere Serverfehler (z. B. M_FORBIDDEN) werden durchgereicht, '
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'nichts wird geschrieben', () async {
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final client = _FakeClient(
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serverState: {},
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getError: MatrixException.fromJson(
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{'errcode': 'M_FORBIDDEN', 'error': 'Nope.'}),
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);
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final room = _FakeRoom(client);
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await expectLater(
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updatePowerLevelsSafely(room, (_) {}),
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throwsA(isA<MatrixException>()),
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);
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expect(client.written, isNull);
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});
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}
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@@ -0,0 +1,67 @@
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import 'package:flutter_test/flutter_test.dart';
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import 'package:matrix/matrix.dart';
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import 'package:pyramid/core/soft_logout_guard.dart';
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/// Fake-Client: nur `refreshAccessToken` ist implementiert. Jeder andere
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/// SDK-Aufruf (insbesondere `logout()`/`clear()`!) schlägt laut mit
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/// NoSuchMethodError fehl – so würde der Test es sofort merken, wenn der
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/// Guard je etwas anderes am Client aufriefe als den Refresh.
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class _FakeClient implements Client {
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_FakeClient(this._onRefresh);
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final Future<void> Function(int attempt) _onRefresh;
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int attempts = 0;
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@override
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Future<void> refreshAccessToken({Duration? customRefreshTokenLifetime}) {
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attempts++;
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return _onRefresh(attempts);
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}
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@override
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dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
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}
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void main() {
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test('erfolgreicher Refresh beim ersten Versuch: genau 1 Aufruf', () async {
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final client = _FakeClient((_) async {});
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await guardedSoftLogoutRefresh(client);
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expect(client.attempts, 1);
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});
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test(
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'transienter Fehler (z. B. Netz weg / Token-Rotations-Race mit dem '
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'Push-Isolate): Retry heilt, kein Fehler nach außen',
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() async {
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final client = _FakeClient((attempt) async {
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if (attempt == 1) throw Exception('Netzwerkfehler');
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});
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await guardedSoftLogoutRefresh(client);
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expect(client.attempts, 2);
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},
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);
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test(
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'dauerhafter Fehler: genau 3 Versuche, und der Guard wirft NIE '
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'(CLAUDE.md: Fehlerpfade dürfen nie in einem stillen Logout enden – '
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'ein Throw hier würde im SDK zu logout()+clear() eskalieren)',
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() async {
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final client = _FakeClient((_) async {
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throw Exception('Server dauerhaft nicht erreichbar');
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});
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// Darf trotz 3 Fehlversuchen normal (ohne Exception) zurückkehren.
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await guardedSoftLogoutRefresh(client);
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expect(client.attempts, 3);
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},
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// Der Guard wartet real 2s+4s zwischen den Versuchen.
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timeout: const Timeout(Duration(seconds: 30)),
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);
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test('auch ein Error (nicht nur Exception) im Refresh entkommt nie', () async {
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final client = _FakeClient((_) async {
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throw StateError('unerwarteter Zustand');
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});
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await guardedSoftLogoutRefresh(client);
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expect(client.attempts, 3);
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}, timeout: const Timeout(Duration(seconds: 30)));
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}
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