Files
plezy/test/services/playback_progress_tracker_test.dart
T

540 lines
21 KiB
Dart

import 'package:drift/native.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:plezy/database/app_database.dart';
import 'package:plezy/models/plex_metadata.dart';
import 'package:plezy/mpv/mpv.dart';
import 'package:plezy/services/multi_server_manager.dart';
import 'package:plezy/services/offline_watch_sync_service.dart';
import 'package:plezy/services/playback_progress_tracker.dart';
import 'package:plezy/services/plex_client.dart';
import 'package:plezy/utils/watch_state_notifier.dart';
import '../test_helpers/prefs.dart';
// NOTE on coverage scope:
// `PlaybackProgressTracker` periodically samples the player's position and
// reports it to either an online [PlexClient] or the offline queue. The
// periodic [Timer] is purely a wall-clock concern — instead of trying to
// virtualize it, we exercise the routing/threshold/scrobble logic directly
// through the public [PlaybackProgressTracker.sendProgress].
//
// Coverage:
// - Constructor invariants (offline ↔ offlineWatchService, online ↔ client).
// - Online routing: 'stopped' awaits, 'playing'/'paused' fire-and-forget.
// - Threshold gating: scrobbles once when percent >= server threshold.
// - Scrobble idempotency: a second sendProgress past threshold is a no-op.
// - Offline routing: queues a progress update via the database.
// - Offline progress with null serverId is a no-op (no queue write).
// - 'stopped' event emits a WatchStateNotifier.notifyProgress.
// - dispose() / stopTracking() are idempotent.
//
// What is NOT covered (by design):
// - The periodic [Timer.periodic] tick itself — we'd need to either drive
// real time (flaky) or inject a clock dependency (out of scope).
// - The exponential-backoff state — observable only across multiple ticks
// under wall time.
/// Fake Player whose state is mutable from the test.
class _FakePlayer implements Player {
PlayerState _state;
_FakePlayer({Duration position = Duration.zero, Duration duration = Duration.zero, bool playing = true})
: _state = PlayerState(playing: playing, duration: duration, position: position);
@override
PlayerState get state => _state;
set position(Duration value) {
_state = _state.copyWith(position: value);
}
set duration(Duration value) {
_state = _state.copyWith(duration: value);
}
set playing(bool value) {
_state = _state.copyWith(playing: value);
}
set completed(bool value) {
_state = _state.copyWith(completed: value);
}
@override
dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
}
/// Recording fake [PlexClient] that captures every progress / scrobble call
/// without touching the network.
class _FakePlexClient implements PlexClient {
_FakePlexClient({this.thresholdPercent = 90});
/// Watched-threshold percentage to report. Defaults to 90 (matches
/// production fallback).
final int thresholdPercent;
/// Override [PlexClient.watchedThresholdPercent] without going through
/// `_serverPrefs`.
@override
int get watchedThresholdPercent => thresholdPercent;
/// (ratingKey, time, state, duration) tuples for every updateProgress call.
final List<({String ratingKey, int time, String state, int? duration})> updateProgressCalls = [];
/// Rating keys passed to markAsWatched.
final List<String> markWatchedCalls = [];
/// If non-null, [updateProgress] / [markAsWatched] throw this on the next call.
Object? throwOnNextCall;
@override
Future<void> updateProgress(String ratingKey, {required int time, required String state, int? duration}) async {
if (throwOnNextCall != null) {
final err = throwOnNextCall!;
throwOnNextCall = null;
throw err;
}
updateProgressCalls.add((ratingKey: ratingKey, time: time, state: state, duration: duration));
}
@override
Future<void> markAsWatched(String ratingKey, {PlexMetadata? metadata}) async {
if (throwOnNextCall != null) {
final err = throwOnNextCall!;
throwOnNextCall = null;
throw err;
}
markWatchedCalls.add(ratingKey);
// Production fires a WatchStateNotifier event from markAsWatched. Mirror
// that so tests can observe it through the singleton.
if (metadata != null) {
WatchStateNotifier().notifyWatched(metadata: metadata, isNowWatched: true);
}
}
@override
dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
}
PlexMetadata _meta({String ratingKey = '42', String? serverId = 'srv', String? type = 'movie'}) =>
PlexMetadata(ratingKey: ratingKey, type: type, title: 'Test Item', serverId: serverId);
void main() {
setUp(resetSharedPreferencesForTest);
// ============================================================
// Constructor assertions
// ============================================================
group('constructor assertions', () {
test('offline=true requires offlineWatchService', () {
expect(
() => PlaybackProgressTracker(client: null, metadata: _meta(), player: _FakePlayer(), isOffline: true),
throwsA(isA<AssertionError>()),
);
});
test('offline=false requires client', () {
expect(
() => PlaybackProgressTracker(client: null, metadata: _meta(), player: _FakePlayer(), isOffline: false),
throwsA(isA<AssertionError>()),
);
});
test('valid online construction succeeds', () {
final tracker = PlaybackProgressTracker(
client: _FakePlexClient(),
metadata: _meta(),
player: _FakePlayer(),
isOffline: false,
);
addTearDown(tracker.dispose);
// No assertion — the constructor returned cleanly.
expect(tracker, isNotNull);
});
});
// ============================================================
// sendProgress: short-circuit on duration=0
// ============================================================
group('sendProgress: duration guard', () {
test('does NOT send progress when duration is zero (player not yet ready)', () async {
final client = _FakePlexClient();
final player = _FakePlayer(); // duration = Duration.zero
final tracker = PlaybackProgressTracker(client: client, metadata: _meta(), player: player, isOffline: false);
addTearDown(tracker.dispose);
await tracker.sendProgress('stopped');
expect(client.updateProgressCalls, isEmpty);
expect(client.markWatchedCalls, isEmpty);
});
});
// ============================================================
// sendProgress: online routing
// ============================================================
group('sendProgress: online', () {
test('"stopped" awaits the underlying call and reports correct args', () async {
final client = _FakePlexClient();
final player = _FakePlayer(position: const Duration(seconds: 30), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(
client: client,
metadata: _meta(ratingKey: '42'),
player: player,
isOffline: false,
);
addTearDown(tracker.dispose);
await tracker.sendProgress('stopped');
// updateProgress is awaited synchronously when state == 'stopped'.
expect(client.updateProgressCalls, hasLength(1));
final call = client.updateProgressCalls.single;
expect(call.ratingKey, '42');
expect(call.time, 30000); // 30s in ms
expect(call.state, 'stopped');
expect(call.duration, 100000); // 100s in ms
});
test('"playing" fires-and-forgets but eventually invokes updateProgress', () async {
final client = _FakePlexClient();
final player = _FakePlayer(position: const Duration(seconds: 5), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(client: client, metadata: _meta(), player: player, isOffline: false);
addTearDown(tracker.dispose);
await tracker.sendProgress('playing');
// The unawaited Future may not have settled yet — drain microtasks.
await Future<void>.delayed(Duration.zero);
expect(client.updateProgressCalls, hasLength(1));
expect(client.updateProgressCalls.single.state, 'playing');
});
});
// ============================================================
// Threshold gating + scrobble
// ============================================================
group('threshold gating', () {
test('does NOT scrobble when percent < watchedThresholdPercent', () async {
// 89% < 90% threshold.
final client = _FakePlexClient(thresholdPercent: 90);
final player = _FakePlayer(position: const Duration(seconds: 89), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(client: client, metadata: _meta(), player: player, isOffline: false);
addTearDown(tracker.dispose);
await tracker.sendProgress('stopped');
expect(client.markWatchedCalls, isEmpty);
});
test('scrobbles when percent >= watchedThresholdPercent', () async {
// 95% >= 90% threshold.
final client = _FakePlexClient(thresholdPercent: 90);
final player = _FakePlayer(position: const Duration(seconds: 95), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(
client: client,
metadata: _meta(ratingKey: '42'),
player: player,
isOffline: false,
);
addTearDown(tracker.dispose);
await tracker.sendProgress('stopped');
expect(client.markWatchedCalls, ['42']);
});
test('respects a custom server threshold (e.g. 80%)', () async {
// 81% >= 80%, but < 90% default.
final client = _FakePlexClient(thresholdPercent: 80);
final player = _FakePlayer(position: const Duration(seconds: 81), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(
client: client,
metadata: _meta(ratingKey: '42'),
player: player,
isOffline: false,
);
addTearDown(tracker.dispose);
await tracker.sendProgress('stopped');
expect(client.markWatchedCalls, ['42']);
});
test('scrobble is idempotent across multiple progress calls', () async {
final client = _FakePlexClient(thresholdPercent: 90);
final player = _FakePlayer(position: const Duration(seconds: 95), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(client: client, metadata: _meta(), player: player, isOffline: false);
addTearDown(tracker.dispose);
await tracker.sendProgress('stopped');
await tracker.sendProgress('stopped');
await tracker.sendProgress('stopped');
// markAsWatched fired exactly once — _scrobbled stays true.
expect(client.markWatchedCalls, hasLength(1));
});
test('a failed scrobble is retried on the next call (resets _scrobbled)', () async {
final client = _FakePlexClient(thresholdPercent: 90);
final player = _FakePlayer(position: const Duration(seconds: 95), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(client: client, metadata: _meta(), player: player, isOffline: false);
addTearDown(tracker.dispose);
// First call: updateProgress succeeds, then markAsWatched throws.
// To make the *second* method (markAsWatched) throw, we need a flag that
// only triggers on the 2nd call. The fake's `throwOnNextCall` consumes
// on the first call, which is updateProgress. Workaround: arm the throw
// immediately before sendProgress, so updateProgress fails. The catch
// branch in PlaybackProgressTracker still bumps the failure counter for
// online stopped calls (and skips scrobble). Then arm again — updateProgress
// succeeds (because the throw was consumed) — and assert markAsWatched
// succeeds and scrobbles.
//
// To target ONLY markAsWatched, we instead use a custom client.
final precise = _ScrobblePreciseClient(thresholdPercent: 90, failScrobbleFirstTime: true);
final tracker2 = PlaybackProgressTracker(
client: precise,
metadata: _meta(ratingKey: '42'),
player: player,
isOffline: false,
);
addTearDown(tracker2.dispose);
await tracker2.sendProgress('stopped');
expect(precise.markWatchedAttempts, 1);
// Retry — markAsWatched now succeeds.
await tracker2.sendProgress('stopped');
expect(precise.markWatchedAttempts, 2);
expect(precise.markWatchedSuccesses, 1);
});
});
// ============================================================
// Offline routing
// ============================================================
group('sendProgress: offline', () {
Future<({OfflineWatchSyncService svc, AppDatabase db, MultiServerManager mgr})> makeOfflineService() async {
final db = AppDatabase.forTesting(NativeDatabase.memory());
final mgr = MultiServerManager();
final svc = OfflineWatchSyncService(database: db, serverManager: mgr);
return (svc: svc, db: db, mgr: mgr);
}
test('queues a progress update via the offline service', () async {
final (svc: svc, db: db, mgr: mgr) = await makeOfflineService();
addTearDown(() async {
svc.dispose();
mgr.dispose();
await db.close();
});
final player = _FakePlayer(position: const Duration(seconds: 12), duration: const Duration(seconds: 60));
final tracker = PlaybackProgressTracker(
client: null,
metadata: _meta(ratingKey: '42', serverId: 'srv'),
player: player,
isOffline: true,
offlineWatchService: svc,
);
addTearDown(tracker.dispose);
await tracker.sendProgress('playing');
// Local DB now has a progress row for srv:42.
final action = await db.getLatestWatchAction('srv:42');
expect(action, isNotNull);
expect(action!.actionType, 'progress');
expect(action.viewOffset, 12000); // 12s in ms
expect(action.duration, 60000);
});
test('offline + null serverId is a no-op (does NOT throw, does NOT queue)', () async {
final (svc: svc, db: db, mgr: mgr) = await makeOfflineService();
addTearDown(() async {
svc.dispose();
mgr.dispose();
await db.close();
});
final player = _FakePlayer(position: const Duration(seconds: 5), duration: const Duration(seconds: 60));
final tracker = PlaybackProgressTracker(
client: null,
metadata: _meta(ratingKey: '42', serverId: null), // <— no serverId
player: player,
isOffline: true,
offlineWatchService: svc,
);
addTearDown(tracker.dispose);
await tracker.sendProgress('playing');
expect(await svc.getPendingSyncCount(), 0);
});
});
// ============================================================
// WatchStateNotifier emission on 'stopped'
// ============================================================
group('WatchStateNotifier event on "stopped"', () {
test('emits a progress-update event when stopped past position 0', () async {
final client = _FakePlexClient(thresholdPercent: 90);
final player = _FakePlayer(position: const Duration(seconds: 30), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(
client: client,
metadata: _meta(ratingKey: '42', serverId: 'srv'),
player: player,
isOffline: false,
);
addTearDown(tracker.dispose);
// Subscribe before triggering the event.
final events = <WatchStateEvent>[];
final sub = WatchStateNotifier().forItem('42').listen(events.add);
addTearDown(sub.cancel);
await tracker.sendProgress('stopped');
// Stream is broadcast — give it a microtask.
await Future<void>.delayed(Duration.zero);
// We expect at least one progressUpdate event for ratingKey=42.
final progressEvents = events.where((e) => e.changeType == WatchStateChangeType.progressUpdate).toList();
expect(progressEvents, isNotEmpty);
expect(progressEvents.first.viewOffset, 30000);
});
test('does NOT emit on "stopped" if position is 0 (no real watch)', () async {
final client = _FakePlexClient(thresholdPercent: 90);
final player = _FakePlayer(position: Duration.zero, duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(
client: client,
metadata: _meta(ratingKey: 'no-watch', serverId: 'srv'),
player: player,
isOffline: false,
);
addTearDown(tracker.dispose);
final events = <WatchStateEvent>[];
final sub = WatchStateNotifier().forItem('no-watch').listen(events.add);
addTearDown(sub.cancel);
await tracker.sendProgress('stopped');
await Future<void>.delayed(Duration.zero);
// No progressUpdate event.
expect(events.where((e) => e.changeType == WatchStateChangeType.progressUpdate), isEmpty);
});
test('does NOT emit a progress event when scrobble already fired', () async {
// 95% triggers a scrobble (markAsWatched → notifyWatched). The progress
// event must be suppressed by the `_scrobbled` flag.
final client = _FakePlexClient(thresholdPercent: 90);
final player = _FakePlayer(position: const Duration(seconds: 95), duration: const Duration(seconds: 100));
final tracker = PlaybackProgressTracker(
client: client,
metadata: _meta(ratingKey: 'scrobbler', serverId: 'srv'),
player: player,
isOffline: false,
);
addTearDown(tracker.dispose);
final events = <WatchStateEvent>[];
final sub = WatchStateNotifier().forItem('scrobbler').listen(events.add);
addTearDown(sub.cancel);
await tracker.sendProgress('stopped');
await Future<void>.delayed(Duration.zero);
// Watched event from markAsWatched fires; progressUpdate is suppressed.
final watched = events.where((e) => e.changeType == WatchStateChangeType.watched).toList();
final progress = events.where((e) => e.changeType == WatchStateChangeType.progressUpdate).toList();
expect(watched, hasLength(1));
expect(progress, isEmpty);
});
});
// ============================================================
// startTracking / stopTracking / dispose lifecycle
// ============================================================
group('lifecycle', () {
test('startTracking + stopTracking is a clean no-op for an inactive player', () async {
final client = _FakePlexClient();
final player = _FakePlayer(playing: false); // not active
final tracker = PlaybackProgressTracker(client: client, metadata: _meta(), player: player, isOffline: false);
addTearDown(tracker.dispose);
tracker.startTracking();
tracker.stopTracking();
// No initial 'playing' progress was sent because the player wasn't active.
// Drain anyway in case the unawaited future raced.
await Future<void>.delayed(Duration.zero);
expect(client.updateProgressCalls, isEmpty);
});
test('startTracking is idempotent: a second call logs a warning and no-ops', () async {
final client = _FakePlexClient();
final player = _FakePlayer(playing: false); // skip the immediate fire
final tracker = PlaybackProgressTracker(
client: client,
metadata: _meta(),
player: player,
isOffline: false,
updateInterval: const Duration(hours: 1), // long enough that no tick fires in the test window
);
addTearDown(tracker.dispose);
tracker.startTracking();
tracker.startTracking(); // second call should warn and bail
tracker.stopTracking();
// No exception is the contract.
});
test('dispose is idempotent', () {
final client = _FakePlexClient();
final tracker = PlaybackProgressTracker(
client: client,
metadata: _meta(),
player: _FakePlayer(playing: false),
isOffline: false,
);
tracker.dispose();
// Calling dispose again must not throw.
expect(tracker.dispose, returnsNormally);
});
});
}
/// A more precise fake than [_FakePlexClient]: lets the test independently
/// fail markAsWatched without touching updateProgress.
class _ScrobblePreciseClient implements PlexClient {
_ScrobblePreciseClient({this.thresholdPercent = 90, this.failScrobbleFirstTime = false});
final int thresholdPercent;
@override
int get watchedThresholdPercent => thresholdPercent;
bool failScrobbleFirstTime;
int markWatchedAttempts = 0;
int markWatchedSuccesses = 0;
@override
Future<void> updateProgress(String ratingKey, {required int time, required String state, int? duration}) async {}
@override
Future<void> markAsWatched(String ratingKey, {PlexMetadata? metadata}) async {
markWatchedAttempts++;
if (failScrobbleFirstTime) {
failScrobbleFirstTime = false;
throw StateError('simulated scrobble failure');
}
markWatchedSuccesses++;
}
@override
dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
}