Files
plezy/test/services/track_selection_service_test.dart
T
2026-08-10 20:28:41 +02:00

1403 lines
59 KiB
Dart

import 'package:flutter_test/flutter_test.dart';
import 'package:plezy/media/media_backend.dart';
import 'package:plezy/media/media_item.dart';
import 'package:plezy/media/media_kind.dart';
import 'package:plezy/media/media_server_user_profile.dart';
import 'package:plezy/media/media_source_info.dart';
import 'package:plezy/models/jellyfin/jellyfin_user_profile.dart';
import 'package:plezy/models/plex/plex_user_profile.dart';
import 'package:plezy/mpv/mpv.dart';
import 'package:plezy/services/subtitle_preference.dart';
import 'package:plezy/services/track_selection_service.dart';
import '../test_helpers/media_items.dart';
// Covers the pure language, track-matching, and audio/subtitle priority helpers,
// including fallback and ambiguity rules. `selectAndApplyTracks` is excluded
// because it requires a real Player and SettingsService singleton.
MediaItem _meta({MediaBackend backend = MediaBackend.plex, String? audioLanguage, String? subtitleLanguage}) =>
testMediaItem(
id: 'rk1',
backend: backend,
kind: MediaKind.movie,
audioLanguage: audioLanguage,
subtitleLanguage: subtitleLanguage,
);
PlexUserProfile _profile({
bool autoSelectAudio = true,
String? defaultAudioLanguage,
List<String>? defaultAudioLanguages,
String? defaultSubtitleLanguage,
List<String>? defaultSubtitleLanguages,
int autoSelectSubtitle = 0,
}) {
return PlexUserProfile(
autoSelectAudio: autoSelectAudio,
defaultAudioAccessibility: 0,
defaultAudioLanguage: defaultAudioLanguage,
defaultAudioLanguages: defaultAudioLanguages,
defaultSubtitleLanguage: defaultSubtitleLanguage,
defaultSubtitleLanguages: defaultSubtitleLanguages,
autoSelectSubtitle: autoSelectSubtitle,
defaultSubtitleAccessibility: 0,
defaultSubtitleForced: 1,
watchedIndicator: 1,
mediaReviewsVisibility: 0,
);
}
JellyfinUserProfile _jellyfinProfile({
String? defaultAudioLanguage,
String? defaultSubtitleLanguage,
SubtitlePlaybackMode? subtitleMode,
}) {
return JellyfinUserProfile(
autoSelectAudio: true,
defaultAudioLanguage: defaultAudioLanguage,
defaultSubtitleLanguage: defaultSubtitleLanguage,
subtitleMode: subtitleMode,
);
}
AudioTrack _audio(String id, {String? lang, String? title, String? codec, int? channels, bool isDefault = false}) =>
AudioTrack(id: id, language: lang, title: title, codec: codec, channels: channels, isDefault: isDefault);
SubtitleTrack _sub(
String id, {
String? lang,
String? title,
String? codec,
bool isDefault = false,
bool isForced = false,
bool isExternal = false,
bool isContainer = false,
}) => SubtitleTrack(
id: id,
language: lang,
title: title,
codec: codec,
isDefault: isDefault,
isForced: isForced,
isExternal: isExternal,
isContainer: isContainer,
);
MediaAudioTrack _plexAudio(
int id, {
int? index,
String? language,
String? languageCode,
String? title,
int? channels,
bool selected = false,
String? codec,
}) {
return MediaAudioTrack(
id: id,
index: index,
language: language,
languageCode: languageCode ?? language,
title: title,
channels: channels,
selected: selected,
codec: codec,
);
}
MediaSubtitleTrack _plexSub(
int id, {
int? index,
String? language,
String? languageCode,
String? title,
bool selected = false,
bool forced = false,
String? codec,
bool external = false,
String? key,
}) {
return MediaSubtitleTrack(
id: id,
index: index,
language: language,
languageCode: languageCode ?? language,
title: title,
selected: selected,
forced: forced,
codec: codec,
external: external,
key: key,
);
}
MediaSourceInfo _info({
List<MediaAudioTrack>? audio,
List<MediaSubtitleTrack>? subs,
int? defaultAudioStreamIndex,
int? defaultSubtitleStreamIndex,
}) => MediaSourceInfo(
videoUrl: '',
audioTracks: audio ?? const [],
subtitleTracks: subs ?? const [],
chapters: const [],
defaultAudioStreamIndex: defaultAudioStreamIndex,
defaultSubtitleStreamIndex: defaultSubtitleStreamIndex,
);
/// Minimal Player stub — TrackSelectionService never reads from the player
/// in any of the public-pure helpers we test.
class _StubPlayer implements Player {
@override
dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
}
TrackSelectionService _svc({MediaItem? metadata, MediaServerUserProfile? profile, MediaSourceInfo? info}) {
return TrackSelectionService(
player: _StubPlayer(),
metadata: metadata ?? _meta(),
profileSettings: profile,
plexMediaInfo: info,
);
}
void main() {
group('languageMatches', () {
final svc = _svc();
test('null on either side never matches', () {
expect(svc.languageMatches(null, 'eng'), isFalse);
expect(svc.languageMatches('eng', null), isFalse);
expect(svc.languageMatches(null, null), isFalse);
});
test('case-insensitive direct match', () {
expect(svc.languageMatches('ENG', 'eng'), isTrue);
expect(svc.languageMatches('en', 'EN'), isTrue);
});
test('strips region suffix on both sides', () {
expect(svc.languageMatches('en-US', 'en'), isTrue);
expect(svc.languageMatches('en', 'en-AU'), isTrue);
expect(svc.languageMatches('en-GB', 'en-US'), isTrue);
});
test('matches across ISO 639-1 ↔ 639-2 variations', () {
// "en" ↔ "eng"
expect(svc.languageMatches('en', 'eng'), isTrue);
expect(svc.languageMatches('eng', 'en'), isTrue);
});
test('different languages do not match', () {
expect(svc.languageMatches('en', 'fr'), isFalse);
expect(svc.languageMatches('eng', 'fre'), isFalse);
});
});
group('findBestSubtitleMatch', () {
final svc = _svc();
test('preferred id="no" returns SubtitleTrack.off', () {
// Even with non-empty available tracks, "no" preference always means off.
final result = svc.findBestSubtitleMatch([_sub('1', lang: 'eng')], const SubtitleTrack(id: 'no'));
expect(identical(result, SubtitleTrack.off), isTrue);
});
test('matches by language when title differs', () {
final tracks = [_sub('1', lang: 'eng', title: 'English')];
expect(svc.findBestSubtitleMatch(tracks, _sub('999', lang: 'eng', title: 'Other')), tracks[0]);
});
test('returns null on no match', () {
expect(svc.findBestSubtitleMatch([_sub('1', lang: 'fre')], _sub('1', lang: 'eng')), isNull);
});
});
group('findAudioTrackByProfile', () {
final svc = _svc();
test('returns null when autoSelectAudio is false', () {
final profile = _profile(autoSelectAudio: false, defaultAudioLanguage: 'eng');
expect(svc.findAudioTrackByProfile([_audio('1', lang: 'eng')], profile), isNull);
});
test('returns null when no preferred languages are configured', () {
final profile = _profile(); // autoSelect=true, but no languages.
expect(svc.findAudioTrackByProfile([_audio('1', lang: 'eng')], profile), isNull);
});
test('matches the primary defaultAudioLanguage first', () {
final tracks = [_audio('1', lang: 'fre'), _audio('2', lang: 'eng')];
final profile = _profile(defaultAudioLanguage: 'eng', defaultAudioLanguages: const ['fre']);
expect(svc.findAudioTrackByProfile(tracks, profile), tracks[1]);
});
test('falls back to next language in list when primary is missing', () {
final tracks = [_audio('1', lang: 'spa')];
final profile = _profile(defaultAudioLanguage: 'eng', defaultAudioLanguages: const ['spa']);
expect(svc.findAudioTrackByProfile(tracks, profile), tracks[0]);
});
test('returns null when none of the preferred languages match', () {
final tracks = [_audio('1', lang: 'jpn')];
final profile = _profile(defaultAudioLanguage: 'eng', defaultAudioLanguages: const ['fre']);
expect(svc.findAudioTrackByProfile(tracks, profile), isNull);
});
test('returns null on empty available tracks', () {
final profile = _profile(defaultAudioLanguage: 'eng');
expect(svc.findAudioTrackByProfile(const [], profile), isNull);
});
});
group('selectAudioTrack', () {
test('returns null on empty available tracks', () {
expect(_svc().selectAudioTrack(const [], _audio('1', lang: 'eng')), isNull);
});
test('Priority 1: preferred-from-navigation wins when matching', () {
final tracks = [_audio('1', lang: 'fre'), _audio('2', lang: 'eng')];
final result = _svc().selectAudioTrack(tracks, _audio('2', lang: 'eng'));
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.navigation);
expect(result.track, tracks[1]);
});
test('Priority 1: a cross-item semantic carry matches through the evidence bands', () {
// The carried track's id belongs to the previous episode; language and
// title must still find the equivalent native track here.
final tracks = [_audio('1', lang: 'eng', title: 'Main'), _audio('2', lang: 'eng', title: 'Commentary')];
final carried = _audio('source:99', lang: 'eng', title: 'Commentary');
final result = _svc().selectAudioTrack(tracks, carried);
expect(result!.priority, TrackSelectionPriority.navigation);
expect(result.track, tracks[1]);
});
test('Priority 1: a declined audio carry falls to the server-selected track', () {
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre')];
final info = _info(
audio: [
_plexAudio(1, language: 'eng', languageCode: 'eng', selected: true),
_plexAudio(2, language: 'fre', languageCode: 'fre'),
],
);
// Swedish is gone on this episode: the carry declines instead of
// latching onto an arbitrary row, and the server's pick plays.
final result = _svc(info: info).selectAudioTrack(tracks, _audio('source:9', lang: 'swe'));
expect(result!.priority, TrackSelectionPriority.serverSelected);
expect(result.track.language, 'eng');
});
test('a demoted cross-item carry cannot latch a reused native id', () {
// Native ids are per-item ordinals: the previous episode's id '2' names
// a DIFFERENT track here. The boundary demotes the carry to semantics
// only; an indistinguishable same-language pair then declines to the
// server's choice instead of silently keeping the old ordinal.
final tracks = [
_audio('1', lang: 'eng', codec: 'aac', channels: 2),
_audio('2', lang: 'eng', codec: 'aac', channels: 2),
];
final info = _info(
audio: [
_plexAudio(1, language: 'eng', languageCode: 'eng', selected: true),
_plexAudio(2, language: 'eng', languageCode: 'eng'),
],
);
final carriedRaw = _audio('2', lang: 'eng', codec: 'aac', channels: 2);
final carried = itemAgnosticAudioCarry(carriedRaw);
// Demotion swaps only the identity; the semantics stay intact.
expect(carried.id, carriedAudioTrackId);
expect(carried.language, 'eng');
expect(carried.channels, 2);
final result = _svc(info: info).selectAudioTrack(tracks, carried);
expect(result!.priority, TrackSelectionPriority.serverSelected);
// Control: the raw (un-demoted) carry would have identity-latched the
// reused id — the exact bypass the boundary demotion exists to prevent.
final latched = _svc(info: info).selectAudioTrack(tracks, carriedRaw);
expect(latched!.priority, TrackSelectionPriority.navigation);
expect(latched.track.id, '2');
});
test('Priority 2: Plex-selected track from media info', () {
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre')];
final info = _info(
audio: [
_plexAudio(1, language: 'eng', languageCode: 'eng', selected: false),
_plexAudio(2, language: 'fre', languageCode: 'fre', selected: true), // selected by Plex
],
);
// No preferred → Priority 1 misses; per-media + profile not provided →
// matcher resolves on Plex's selected (French).
final result = _svc(info: info).selectAudioTrack(tracks, null);
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.serverSelected);
expect(result.track.language, 'fre');
});
test('Jellyfin selected audio stream wins over DefaultAudioStreamIndex', () {
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre')];
final info = _info(
defaultAudioStreamIndex: 1,
audio: [
_plexAudio(1, index: 1, language: 'eng', languageCode: 'eng'),
_plexAudio(2, index: 2, language: 'fre', languageCode: 'fre', selected: true),
],
);
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
).selectAudioTrack(tracks, null);
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.serverSelected);
expect(result.track.language, 'fre');
});
test('Jellyfin DefaultAudioStreamIndex selects audio when selected flag is missing', () {
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre')];
final info = _info(
defaultAudioStreamIndex: 2,
audio: [
_plexAudio(1, index: 1, language: 'eng', languageCode: 'eng'),
_plexAudio(2, index: 2, language: 'fre', languageCode: 'fre'),
],
);
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
).selectAudioTrack(tracks, null);
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.serverSelected);
expect(result.track.language, 'fre');
});
test('Priority 3: per-media audioLanguage from metadata', () {
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre')];
final result = _svc(metadata: _meta(audioLanguage: 'fre')).selectAudioTrack(tracks, null);
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.perMedia);
expect(result.track.language, 'fre');
});
test('Priority 4: user profile when nothing higher matches', () {
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre')];
final profile = _profile(defaultAudioLanguage: 'eng');
final result = _svc(profile: profile).selectAudioTrack(tracks, null);
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.profile);
expect(result.track.language, 'eng');
});
test('Priority 5: default-flagged track as last resort', () {
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre', isDefault: true)];
final result = _svc().selectAudioTrack(tracks, null);
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.defaultTrack);
expect(result.track.id, 'B');
});
test('Priority 5: first track when none flagged default', () {
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre')];
final result = _svc().selectAudioTrack(tracks, null);
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.defaultTrack);
expect(result.track.id, 'A');
});
test('preferred mismatch falls through to lower priority', () {
// preferred has a language that is NOT in the available tracks — Priority 1
// misses; Priority 5 picks the first track.
final tracks = [_audio('A', lang: 'eng'), _audio('B', lang: 'fre')];
final result = _svc().selectAudioTrack(tracks, _audio('Z', lang: 'jpn'));
expect(result, isNotNull);
expect(result!.priority, TrackSelectionPriority.defaultTrack);
});
});
group('selectSubtitleTrack', () {
test('Priority 1: preferred id="no" forces subtitles off', () {
final tracks = [_sub('1', lang: 'eng', isDefault: true)];
final result = _svc().selectSubtitleTrack(tracks, const SubtitlePreference.off(), null)!;
expect(result.priority, TrackSelectionPriority.navigation);
expect(result.track.id, 'no');
});
test('Priority 1: preferred subtitle from navigation matches by language', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'fre')];
final result = _svc().selectSubtitleTrack(tracks, SubtitlePreference.track(_sub('99', lang: 'fre')), null)!;
expect(result.priority, TrackSelectionPriority.navigation);
expect(result.track.id, '2');
});
test('Priority 2: Plex server-selected subtitle wins', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'fre')];
final info = _info(
subs: [
_plexSub(10, language: 'eng', languageCode: 'eng'),
_plexSub(11, language: 'fre', languageCode: 'fre', selected: true),
],
);
final result = _svc(info: info).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.serverSelected);
expect(result.track.language, 'fre');
});
test('complete metadata-free direct catalog selects its unique native subtitle', () {
final sourceTrack = _plexSub(20, codec: 'ass', selected: true);
final info = _info(subs: [sourceTrack]);
final nativeTrack = _sub('native-ass', codec: 'ass');
final service = _svc(info: info);
final preferredResult = service.selectSubtitleTrack(
[nativeTrack],
const SubtitlePreference.track(SubtitleTrack(id: 'source:20', codec: 'ass')),
null,
)!;
final serverResult = service.selectSubtitleTrack([nativeTrack], null, null)!;
expect(preferredResult.priority, TrackSelectionPriority.navigation);
expect(preferredResult.track, same(nativeTrack));
expect(serverResult.priority, TrackSelectionPriority.serverSelected);
expect(serverResult.track, same(nativeTrack));
expect(findMpvTrackForPlexSubtitle(sourceTrack, [nativeTrack], allPlexTracks: [sourceTrack]), same(nativeTrack));
expect(findPlexTrackForMpvSubtitle(nativeTrack, [sourceTrack], allMpvTracks: [nativeTrack]), same(sourceTrack));
});
test('complete low-metadata direct catalog uses facts instead of ordinal order', () {
final sourceAss = _plexSub(30, codec: 'ass', selected: true);
final sourceSrt = _plexSub(31, codec: 'srt');
final plexTracks = [sourceAss, sourceSrt];
final nativeSrt = _sub('native-srt', codec: 'srt');
final nativeAss = _sub('native-ass', codec: 'ass');
final nativeTracks = [nativeSrt, nativeAss];
expect(findMpvTrackForPlexSubtitle(sourceAss, nativeTracks, allPlexTracks: plexTracks), same(nativeAss));
expect(findPlexTrackForMpvSubtitle(nativeAss, plexTracks, allMpvTracks: nativeTracks), same(sourceAss));
});
test('ambiguous metadata-free direct catalog does not use ordinal fallback', () {
final selectedSource = _plexSub(40, codec: 'ass', selected: true);
final otherSource = _plexSub(41, codec: 'ass');
final plexTracks = [selectedSource, otherSource];
final nativeTracks = [_sub('native-second', codec: 'ass'), _sub('native-first', codec: 'ass')];
final service = _svc(info: _info(subs: plexTracks));
expect(findMpvTrackForPlexSubtitle(selectedSource, nativeTracks, allPlexTracks: plexTracks), isNull);
expect(findPlexTrackForMpvSubtitle(nativeTracks.first, plexTracks, allMpvTracks: nativeTracks), isNull);
final preferredResult = service.selectSubtitleTrack(
nativeTracks,
const SubtitlePreference.track(SubtitleTrack(id: 'source:40', codec: 'ass')),
null,
)!;
final serverResult = service.selectSubtitleTrack(nativeTracks, null, null)!;
expect(preferredResult.priority, TrackSelectionPriority.off);
expect(preferredResult.track.id, SubtitleTrack.off.id);
expect(serverResult.priority, TrackSelectionPriority.off);
expect(serverResult.track.id, SubtitleTrack.off.id);
});
test('ambiguous complete direct catalog falls through to native default', () {
final plexTracks = [_plexSub(50, codec: 'ass', selected: true), _plexSub(51, codec: 'ass')];
final nativeTracks = [_sub('native-first', codec: 'ass'), _sub('native-default', codec: 'ass', isDefault: true)];
final result = _svc(info: _info(subs: plexTracks)).selectSubtitleTrack(
nativeTracks,
const SubtitlePreference.track(SubtitleTrack(id: 'source:50', codec: 'ass')),
null,
)!;
expect(result.priority, TrackSelectionPriority.defaultTrack);
expect(result.track.id, 'native-default');
});
test('partial metadata-free direct catalog remains pending', () {
final plexTracks = [_plexSub(60, codec: 'ass', selected: true), _plexSub(61, codec: 'ass')];
final nativeTracks = [_sub('native-only', codec: 'ass', isDefault: true)];
final service = _svc(info: _info(subs: plexTracks));
expect(
service.selectSubtitleTrack(
nativeTracks,
const SubtitlePreference.track(SubtitleTrack(id: 'source:60', codec: 'ass')),
null,
),
isNull,
);
expect(service.selectSubtitleTrack(nativeTracks, null, null), isNull);
});
test('partial native catalog stays undetermined until the selected Plex track arrives', () {
final info = _info(
subs: [
_plexSub(10, language: 'eng', selected: true),
_plexSub(11, language: 'fre'),
],
);
final result = _svc(info: info).selectSubtitleTrack([_sub('2', lang: 'fre')], null, null);
expect(result, isNull);
});
test('preferred source waits for its ordinal in a partial identical container catalog', () {
final info = _info(
subs: [
_plexSub(30, index: 0, language: 'eng', title: 'English', codec: 'ass'),
_plexSub(31, index: 1, language: 'eng', title: 'English', codec: 'ass', selected: true),
],
);
const preferred = SubtitleTrack(
id: 'source:31',
language: 'eng',
title: 'English',
codec: 'ass',
isExternal: true,
isContainer: true,
uri: 'https://example.test/video.mkv',
);
const first = SubtitleTrack(
id: 'native-0',
language: 'eng',
title: 'English',
codec: 'ass',
isExternal: true,
isContainer: true,
uri: 'https://example.test/video.mkv',
);
const second = SubtitleTrack(
id: 'native-1',
language: 'eng',
title: 'English',
codec: 'ass',
isExternal: true,
isContainer: true,
uri: 'https://example.test/video.mkv',
);
final service = _svc(info: info);
expect(service.selectSubtitleTrack(const [first], SubtitlePreference.track(preferred), null), isNull);
expect(
service.selectSubtitleTrack(const [first, second], SubtitlePreference.track(preferred), null)?.track.id,
'native-1',
);
});
test('preferred keyed source does not fuzzy-match an early same-language container track', () {
final info = _info(
subs: [
_plexSub(10, language: 'eng', codec: 'srt', external: true, key: '/library/streams/10'),
_plexSub(11, language: 'eng', codec: 'srt'),
],
);
const preferred = SubtitleTrack(
id: 'source:10',
language: 'eng',
codec: 'srt',
isExternal: true,
uri: 'https://example.test/library/streams/10.srt',
);
const earlyContainer = SubtitleTrack(
id: 'native-0',
language: 'eng',
codec: 'srt',
isExternal: true,
isContainer: true,
uri: 'https://example.test/video.mkv',
);
expect(
_svc(info: info).selectSubtitleTrack(const [earlyContainer], SubtitlePreference.track(preferred), null),
isNull,
);
});
test('Jellyfin selected subtitle stream wins over DefaultSubtitleStreamIndex', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'fre')];
final info = _info(
defaultSubtitleStreamIndex: 10,
subs: [
_plexSub(10, index: 10, language: 'eng', languageCode: 'eng'),
_plexSub(11, index: 11, language: 'fre', languageCode: 'fre', selected: true),
],
);
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.serverSelected);
expect(result.track.language, 'fre');
});
test('Priority 2: Plex media info has subs but none selected → off', () {
// Server's explicit decision: there ARE subs but the user opted out.
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'fre')];
final info = _info(
subs: [
_plexSub(10, language: 'eng'),
_plexSub(11, language: 'fre'),
],
);
final result = _svc(info: info).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.serverSelected);
expect(result.track.id, 'no');
});
test('Jellyfin media info with subs but none selected falls through to default fallback', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'fre', isDefault: true)];
final info = _info(
subs: [
_plexSub(10, language: 'eng'),
_plexSub(11, language: 'fre'),
],
);
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.defaultTrack);
expect(result.track.id, '2');
});
test('Jellyfin DefaultSubtitleStreamIndex selects subtitle when selected flag is missing', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'fre')];
final info = _info(
defaultSubtitleStreamIndex: 11,
subs: [
_plexSub(10, index: 10, language: 'eng', languageCode: 'eng'),
_plexSub(11, index: 11, language: 'fre', languageCode: 'fre'),
],
);
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.serverSelected);
expect(result.track.language, 'fre');
});
group('Jellyfin direct play (issue #1696)', () {
// JellyfinClient strips sidecar identity from rows it did not fetch, so
// a direct-played embedded stream reaches selection as a plain row.
MediaSourceInfo directPlayInfo() => _info(
defaultSubtitleStreamIndex: 3,
subs: [
_plexSub(
3,
index: 3,
languageCode: 'eng',
title: 'English Forced',
codec: 'ass',
selected: true,
forced: true,
),
_plexSub(4, index: 4, languageCode: 'eng', title: 'English', codec: 'ass'),
],
);
final nativeTracks = [
_sub('1', lang: 'eng', title: 'English Forced', codec: 'ass', isForced: true),
_sub('2', lang: 'eng', title: 'English', codec: 'ass'),
];
test('applies the server default instead of waiting for a sidecar', () {
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: directPlayInfo(),
).selectSubtitleTrack(nativeTracks, null, null);
expect(result?.priority, TrackSelectionPriority.serverSelected);
expect(result?.track.id, '1');
});
test('resolves a source preference carried over from the open', () {
final result =
_svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: directPlayInfo(),
).selectSubtitleTrack(
nativeTracks,
SubtitlePreference.track(
_sub('source:3', lang: 'eng', title: 'English Forced', codec: 'ass', isForced: true, isDefault: true),
),
null,
);
expect(result?.priority, TrackSelectionPriority.navigation);
expect(result?.track.id, '1');
});
test('an unmatched source preference stops waiting once the catalog is complete', () {
// Both source rows are present natively, so nothing more can arrive:
// the unresolvable preference must fall through, not defer forever.
final result =
_svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: directPlayInfo(),
).selectSubtitleTrack(
nativeTracks,
SubtitlePreference.track(_sub('source:9', lang: 'kor', codec: 'srt')),
null,
);
expect(result, isNotNull);
expect(result!.track.id, '1');
});
test('waits for a server-selected sidecar even when another native track has arrived', () {
// Transcode: the selected row is delivered as a sidecar and has not
// attached yet, while a different sidecar already has. Committing that
// unrelated track would also mark the pass ready and retire the
// listener, so the real selection could never land.
final info = _info(
defaultSubtitleStreamIndex: 3,
subs: [
_plexSub(3, index: 3, languageCode: 'eng', codec: 'srt', key: '/Subtitles/3', selected: true),
_plexSub(4, index: 4, languageCode: 'swe', codec: 'srt', key: '/Subtitles/4'),
],
);
final arrivedTracks = [_sub('sw', lang: 'swe', codec: 'srt', isDefault: true, isExternal: true)];
final service = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
);
expect(service.selectSubtitleTrack(arrivedTracks, null, null), isNull);
// Once the selected sidecar attaches, its keyed identity resolves.
final selectedNative = SubtitleTrack(
id: 'en',
language: 'eng',
codec: 'srt',
isExternal: true,
uri: 'https://jf.example.com/Subtitles/3?api_key=tok',
);
final resolved = service.selectSubtitleTrack([...arrivedTracks, selectedNative], null, null);
expect(resolved?.priority, TrackSelectionPriority.serverSelected);
expect(resolved?.track.id, 'en');
});
});
group('deadline resolution', () {
test('waitForPendingSource: false resolves a source that never arrived', () {
// A sidecar-delivered catalog can never prove completeness, so this
// stays pending until the caller gives up on it.
final info = _info(
subs: [
_plexSub(3, index: 3, languageCode: 'eng', codec: 'srt', key: '/Subtitles/3', selected: true),
_plexSub(4, index: 4, languageCode: 'swe', codec: 'srt', key: '/Subtitles/4'),
],
);
final nativeTracks = [_sub('1', lang: 'eng', codec: 'srt', isDefault: true)];
final service = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
);
final preferred = SubtitlePreference.track(_sub('source:3', lang: 'eng', codec: 'srt'));
expect(service.selectSubtitleTrack(nativeTracks, preferred, null), isNull);
final resolved = service.selectSubtitleTrack(nativeTracks, preferred, null, waitForPendingSource: false);
expect(resolved?.priority, TrackSelectionPriority.defaultTrack);
expect(resolved?.track.id, '1');
});
test('waitForPendingSource: false turns an empty native catalog into an explicit off', () {
final info = _info(
subs: [_plexSub(3, index: 3, languageCode: 'eng', codec: 'srt', key: '/Subtitles/3')],
);
final service = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
);
expect(service.selectSubtitleTrack(const [], null, null), isNull);
expect(
service.selectSubtitleTrack(const [], null, null, waitForPendingSource: false)?.track.id,
SubtitleTrack.off.id,
);
});
});
test('Jellyfin explicit DefaultSubtitleStreamIndex=-1 forces subtitles off', () {
final tracks = [_sub('1', lang: 'eng', isDefault: true), _sub('2', lang: 'fre')];
final info = _info(
defaultSubtitleStreamIndex: -1,
subs: [
_plexSub(10, language: 'eng'),
_plexSub(11, language: 'fre'),
],
);
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
info: info,
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.serverSelected);
expect(result.track.id, 'no');
});
test('Jellyfin SubtitleMode.None forces subtitles off', () {
final tracks = [_sub('1', lang: 'eng', isDefault: true)];
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
profile: _jellyfinProfile(defaultSubtitleLanguage: 'eng', subtitleMode: SubtitlePlaybackMode.none),
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.profile);
expect(result.track.id, 'no');
});
test('Jellyfin SubtitleMode.OnlyForced selects matching forced subtitle', () {
final tracks = [
_sub('1', lang: 'eng'),
_sub('2', lang: 'eng', isForced: true),
_sub('3', lang: 'jpn', isForced: true),
];
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
profile: _jellyfinProfile(defaultSubtitleLanguage: 'eng', subtitleMode: SubtitlePlaybackMode.onlyForced),
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.profile);
expect(result.track.id, '2');
});
test('Jellyfin SubtitleMode.OnlyForced honors a title-only forced subtitle (#1716)', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'eng', title: 'English Forced')];
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
profile: _jellyfinProfile(defaultSubtitleLanguage: 'eng', subtitleMode: SubtitlePlaybackMode.onlyForced),
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.profile);
expect(result.track.id, '2');
});
test('Jellyfin SubtitleMode.OnlyForced turns off when no forced subtitle exists', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'jpn')];
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
profile: _jellyfinProfile(defaultSubtitleLanguage: 'eng', subtitleMode: SubtitlePlaybackMode.onlyForced),
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.profile);
expect(result.track.id, 'no');
});
test('Jellyfin SubtitleMode.Always selects preferred subtitle language', () {
final tracks = [_sub('1', lang: 'jpn'), _sub('2', lang: 'eng')];
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
profile: _jellyfinProfile(defaultSubtitleLanguage: 'eng', subtitleMode: SubtitlePlaybackMode.always),
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.profile);
expect(result.track.id, '2');
});
test('Jellyfin SubtitleMode.Always falls back to default then first subtitle', () {
final tracks = [_sub('1', lang: 'jpn'), _sub('2', lang: 'fre', isDefault: true)];
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
profile: _jellyfinProfile(defaultSubtitleLanguage: 'eng', subtitleMode: SubtitlePlaybackMode.always),
).selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.profile);
expect(result.track.id, '2');
});
test('Jellyfin SubtitleMode.Smart uses forced subtitle when audio matches preferred language', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'eng', isForced: true)];
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
profile: _jellyfinProfile(
defaultAudioLanguage: 'eng',
defaultSubtitleLanguage: 'eng',
subtitleMode: SubtitlePlaybackMode.smart,
),
).selectSubtitleTrack(tracks, null, _audio('A', lang: 'eng'))!;
expect(result.priority, TrackSelectionPriority.profile);
expect(result.track.id, '2');
});
test('Jellyfin SubtitleMode.Smart uses preferred subtitle when audio differs', () {
final tracks = [_sub('1', lang: 'jpn'), _sub('2', lang: 'eng')];
final result = _svc(
metadata: _meta(backend: MediaBackend.jellyfin),
profile: _jellyfinProfile(
defaultAudioLanguage: 'eng',
defaultSubtitleLanguage: 'eng',
subtitleMode: SubtitlePlaybackMode.smart,
),
).selectSubtitleTrack(tracks, null, _audio('A', lang: 'jpn'))!;
expect(result.priority, TrackSelectionPriority.profile);
expect(result.track.id, '2');
});
test('Priority 3: default-flagged track when no Plex info', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'fre', isDefault: true)];
final result = _svc().selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.defaultTrack);
expect(result.track.id, '2');
});
test('Priority 4: off when no default and no info', () {
final tracks = [_sub('1', lang: 'eng'), _sub('2', lang: 'fre')];
final result = _svc().selectSubtitleTrack(tracks, null, null)!;
expect(result.priority, TrackSelectionPriority.off);
expect(result.track.id, 'no');
});
test('Priority 4: off when no available tracks at all', () {
final result = _svc().selectSubtitleTrack(const [], null, null)!;
expect(result.priority, TrackSelectionPriority.off);
expect(result.track.id, 'no');
});
test('empty native track list remains undetermined when Plex advertises subtitles', () {
final info = _info(subs: [_plexSub(10, language: 'eng', selected: true)]);
final result = _svc(info: info).selectSubtitleTrack(const [], null, null);
expect(result, isNull);
});
test('empty native track list is also undetermined when Plex selected no subtitle', () {
final info = _info(subs: [_plexSub(10, language: 'eng')]);
final result = _svc(info: info).selectSubtitleTrack(const [], null, null);
expect(result, isNull);
});
test('selected keyed sidecar remains pending when only a same-language container has arrived', () {
final info = _info(
subs: [_plexSub(10, language: 'eng', selected: true, external: true, key: '/library/streams/10')],
);
final earlyContainer = _sub('20', lang: 'eng', isExternal: true, isContainer: true);
final result = _svc(info: info).selectSubtitleTrack([earlyContainer], null, null);
expect(result, isNull);
});
});
group('findPlexTrackForMpvSubtitle - forced disambiguation', () {
// Disposition-flagged forced track: forced is set in the container, so both
// Plex and the player carry forced=true on the forced track.
test('disposition-flagged forced track maps via the forced flag', () {
final plexTracks = [
_plexSub(10, index: 0, languageCode: 'fre', codec: 'ass', forced: false),
_plexSub(11, index: 1, languageCode: 'fre', codec: 'ass', forced: true),
];
final mpvNonForced = _sub('2_0', lang: 'fre', codec: 'ass');
final mpvForced = _sub('2_1', lang: 'fre', codec: 'ass', isForced: true);
final allMpv = [mpvNonForced, mpvForced];
expect(findPlexTrackForMpvSubtitle(mpvForced, plexTracks, allMpvTracks: allMpv)?.id, 11);
expect(findPlexTrackForMpvSubtitle(mpvNonForced, plexTracks, allMpvTracks: allMpv)?.id, 10);
});
// Title-only "forced" track — the exact #1443 file (MKVToolNix screenshot):
// the forced sub is NOT flagged forced in the container, it only carries the
// name "Forced"; the regular French sub has an empty name. Both sides report
// forced=false, so disambiguation rides on title (forced sub) and ordinal
// position (the empty-title regular sub).
test('title-only forced track and empty-title regular track stay distinct (#1443)', () {
final plexTracks = [
_plexSub(30, index: 0, languageCode: 'fre', title: 'Forced', codec: 'ass', forced: false),
_plexSub(31, index: 1, languageCode: 'fre', codec: 'ass', forced: false),
_plexSub(32, index: 2, languageCode: 'eng', title: 'SDH', codec: 'ass', forced: false),
];
final mpvForcedByName = _sub('2_0', lang: 'fre', title: 'Forced', codec: 'ass');
final mpvRegular = _sub('2_1', lang: 'fre', codec: 'ass');
final mpvSdh = _sub('2_2', lang: 'eng', title: 'SDH', codec: 'ass');
final allMpv = [mpvForcedByName, mpvRegular, mpvSdh];
expect(findPlexTrackForMpvSubtitle(mpvForcedByName, plexTracks, allMpvTracks: allMpv)?.id, 30);
expect(findPlexTrackForMpvSubtitle(mpvRegular, plexTracks, allMpvTracks: allMpv)?.id, 31);
});
// Cross-form pairs: one side flags forced in the container, the other only
// says it in the title. Effective-forced semantics (#1716) treat both forms
// as the same class, so the pair still gets the +2 agreement nudge.
test('flag-forced native track maps to a title-only forced row', () {
final plexTracks = [
_plexSub(50, index: 0, languageCode: 'fre', title: 'FR Forced', codec: 'ass', forced: false),
_plexSub(51, index: 1, languageCode: 'fre', codec: 'ass', forced: false),
];
final mpvForced = _sub('2_0', lang: 'fre', codec: 'ass', isForced: true);
final mpvRegular = _sub('2_1', lang: 'fre', codec: 'ass');
final allMpv = [mpvForced, mpvRegular];
expect(findPlexTrackForMpvSubtitle(mpvForced, plexTracks, allMpvTracks: allMpv)?.id, 50);
expect(findPlexTrackForMpvSubtitle(mpvRegular, plexTracks, allMpvTracks: allMpv)?.id, 51);
});
test('title-only forced native track maps to a flag-forced row', () {
final plexTracks = [
_plexSub(60, index: 0, languageCode: 'fre', codec: 'ass', forced: true),
_plexSub(61, index: 1, languageCode: 'fre', codec: 'ass', forced: false),
];
final mpvForcedByName = _sub('2_0', lang: 'fre', title: 'FR Forced [ASS]', codec: 'ass');
final mpvRegular = _sub('2_1', lang: 'fre', codec: 'ass');
final allMpv = [mpvForcedByName, mpvRegular];
expect(findPlexTrackForMpvSubtitle(mpvForcedByName, plexTracks, allMpvTracks: allMpv)?.id, 60);
expect(findPlexTrackForMpvSubtitle(mpvRegular, plexTracks, allMpvTracks: allMpv)?.id, 61);
});
});
group('findSourceTrackForIntent', () {
const forcedIntent = SubtitleIntent(language: 'fre', forced: true, title: 'FR Forced [ASS]', codec: 'ass');
const fullIntent = SubtitleIntent(language: 'fre', forced: false, title: 'French', codec: 'srt');
test('forced intent picks the title-only forced row over the full row', () {
final rows = [
_plexSub(1, languageCode: 'fre', title: 'French', codec: 'srt'),
_plexSub(2, languageCode: 'fre', title: 'FR Forced', codec: 'ass'),
];
expect(findSourceTrackForIntent(forcedIntent, rows)?.id, 2);
});
test('forced intent picks a flag-forced row (cross-form)', () {
final rows = [
_plexSub(1, languageCode: 'fre', title: 'French', codec: 'srt'),
_plexSub(2, languageCode: 'fre', codec: 'ass', forced: true),
];
expect(findSourceTrackForIntent(forcedIntent, rows)?.id, 2);
});
test('forced intent declines when only full same-language rows exist', () {
final rows = [
_plexSub(1, languageCode: 'fre', title: 'French', codec: 'srt'),
_plexSub(2, languageCode: 'eng', title: 'English', codec: 'srt'),
];
expect(findSourceTrackForIntent(forcedIntent, rows), isNull);
});
test('full intent declines when only forced rows share the language', () {
final rows = [
_plexSub(1, languageCode: 'fre', title: 'FR Forced', codec: 'srt'),
_plexSub(2, languageCode: 'fre', codec: 'ass', forced: true),
];
expect(findSourceTrackForIntent(fullIntent, rows), isNull);
});
test('codec and title break ties between same-class rows', () {
final rows = [
_plexSub(1, languageCode: 'fre', title: 'Commentary', codec: 'ass'),
_plexSub(2, languageCode: 'fre', title: 'French', codec: 'srt'),
];
expect(findSourceTrackForIntent(fullIntent, rows)?.id, 2);
});
test('language-less intent declines when no row carries a matching title', () {
const intent = SubtitleIntent(forced: false, title: 'French', codec: 'srt');
expect(findSourceTrackForIntent(intent, [_plexSub(1, languageCode: 'fre')]), isNull);
});
test('title-only intent matches the row with the same title when tags are missing (#1785)', () {
const intent = SubtitleIntent(forced: false, title: 'Swedish', codec: 'subrip');
final rows = [_plexSub(1, title: 'English', codec: 'subrip'), _plexSub(2, title: 'Swedish', codec: 'subrip')];
expect(findSourceTrackForIntent(intent, rows)?.id, 2);
});
test('tagged intent reaches an untagged row through its title (#1785)', () {
const intent = SubtitleIntent(language: 'swe', forced: false, title: 'Swedish', codec: 'subrip');
expect(findSourceTrackForIntent(intent, [_plexSub(1, title: 'Swedish', codec: 'subrip')])?.id, 1);
});
test('title-only intent reaches a tagged row through its title (#1785)', () {
const intent = SubtitleIntent(forced: false, title: 'Swedish', codec: 'subrip');
final rows = [
_plexSub(1, languageCode: 'eng', title: 'English'),
_plexSub(2, languageCode: 'swe', title: 'Swedish'),
];
expect(findSourceTrackForIntent(intent, rows)?.id, 2);
});
test('declared languages stay authoritative over a coincidental title', () {
const intent = SubtitleIntent(language: 'swe', forced: false, title: 'Swedish', codec: 'subrip');
expect(findSourceTrackForIntent(intent, [_plexSub(1, languageCode: 'eng', title: 'Swedish')]), isNull);
});
test('codec parity alone never vouches for an untagged row', () {
const intent = SubtitleIntent(forced: false, title: 'Swedish', codec: 'subrip');
expect(findSourceTrackForIntent(intent, [_plexSub(1, codec: 'subrip')]), isNull);
});
test('an ambiguous same-title untagged pair declines rather than guesses', () {
const intent = SubtitleIntent(forced: false, title: 'Swedish', codec: 'subrip');
final rows = [_plexSub(1, title: 'Swedish', codec: 'subrip'), _plexSub(2, title: 'Swedish', codec: 'subrip')];
expect(findSourceTrackForIntent(intent, rows), isNull);
});
test('codec separates same-titled untagged rows before declining', () {
const intent = SubtitleIntent(forced: false, title: 'Swedish', codec: 'ass');
final rows = [_plexSub(1, title: 'Swedish', codec: 'subrip'), _plexSub(2, title: 'Swedish', codec: 'ass')];
expect(findSourceTrackForIntent(intent, rows)?.id, 2);
});
test('forced parity still gates title-evidence matches', () {
const intent = SubtitleIntent(forced: false, title: 'Swedish', codec: 'subrip');
expect(findSourceTrackForIntent(intent, [_plexSub(1, title: 'Swedish Forced', codec: 'subrip')]), isNull);
});
test('a language-parity match outranks a title-evidence match', () {
const intent = SubtitleIntent(language: 'swe', forced: false, title: 'Swedish', codec: 'subrip');
final rows = [
// Title-evidence candidate (untagged, matching title + codec).
_plexSub(1, title: 'Swedish', codec: 'subrip'),
// Language-parity candidate with a non-matching title.
_plexSub(2, languageCode: 'swe', title: 'Svenska full'),
];
expect(findSourceTrackForIntent(intent, rows)?.id, 2);
});
test('the semantic title outranks a retained codec across a codec flip', () {
// The signs track was re-encoded srt on this episode while the full
// dialogue track kept the old codec: the row NAMED by the carried
// title must win — technical parity only breaks ties the semantic
// tiers left.
const intent = SubtitleIntent(language: 'eng', forced: false, title: 'Signs/OP/ED', codec: 'ass');
final rows = [
_plexSub(1, languageCode: 'eng', title: 'Full Subtitles', codec: 'ass'),
_plexSub(2, languageCode: 'eng', title: 'Signs/OP/ED', codec: 'subrip'),
];
expect(findSourceTrackForIntent(intent, rows)?.id, 2);
});
test('an indistinguishable same-language pair declines rather than latching by order', () {
// A titleless carry cannot tell two equal same-language rows apart:
// guessing the first row would recreate the #1717 order latch.
const intent = SubtitleIntent(language: 'eng', forced: false, codec: 'subrip');
final rows = [
_plexSub(1, languageCode: 'eng', codec: 'subrip'),
_plexSub(2, languageCode: 'eng', codec: 'subrip'),
];
expect(findSourceTrackForIntent(intent, rows), isNull);
});
});
group('findNativeTrackForIntent', () {
const forcedIntent = SubtitleIntent(language: 'fre', forced: true, title: 'FR Forced [ASS]', codec: 'ass');
test('forced intent picks the forced native track in either form', () {
final byTitle = [
_sub('1', lang: 'fre', title: 'French', codec: 'srt'),
_sub('2', lang: 'fre', title: 'FR Forced', codec: 'ass'),
];
final byFlag = [
_sub('1', lang: 'fre', title: 'French', codec: 'srt'),
_sub('2', lang: 'fre', codec: 'ass', isForced: true),
];
expect(findNativeTrackForIntent(forcedIntent, byTitle)?.id, '2');
expect(findNativeTrackForIntent(forcedIntent, byFlag)?.id, '2');
});
test('declines symmetrically and skips the auto/off sentinels', () {
final fullOnly = [SubtitleTrack.auto, SubtitleTrack.off, _sub('1', lang: 'fre', title: 'French', codec: 'srt')];
expect(findNativeTrackForIntent(forcedIntent, fullOnly), isNull);
const fullIntent = SubtitleIntent(language: 'fre', forced: false);
final forcedOnly = [_sub('1', lang: 'fre', title: 'FR Forced', codec: 'ass')];
expect(findNativeTrackForIntent(fullIntent, forcedOnly), isNull);
});
test('an untagged native track with the matching title serves the intent (#1785)', () {
// The server catalog may lack tags while mpv reads them from the
// container — and vice versa: a tagged intent must still reach an
// untagged native track through its title.
const intent = SubtitleIntent(language: 'swe', forced: false, title: 'Swedish', codec: 'subrip');
final tracks = [SubtitleTrack.auto, SubtitleTrack.off, _sub('3', title: 'Swedish', codec: 'subrip')];
expect(findNativeTrackForIntent(intent, tracks)?.id, '3');
});
test('an ambiguous untagged native pair declines rather than guesses', () {
const intent = SubtitleIntent(forced: false, title: 'Swedish', codec: 'subrip');
final tracks = [_sub('1', title: 'Swedish', codec: 'subrip'), _sub('2', title: 'Swedish', codec: 'subrip')];
expect(findNativeTrackForIntent(intent, tracks), isNull);
});
});
group('audio carry evidence bands', () {
test('bridges two- and three-letter language codes across episodes', () {
// The old carry compared languages with raw equality, so a 'sv' pick
// never found a 'swe'-tagged row on the next episode.
final rows = [_plexAudio(1, languageCode: 'eng'), _plexAudio(2, languageCode: 'swe')];
expect(findSourceAudioTrackForIntent(_audio('x', lang: 'sv'), rows)?.id, 2);
});
test('keeps the commentary/main distinction between same-language tracks', () {
// The old language-only tier returned the FIRST same-language row,
// flipping a commentary pick back to the main mix every episode.
final rows = [
_plexAudio(1, languageCode: 'eng', title: 'Main'),
_plexAudio(2, languageCode: 'eng', title: 'Commentary'),
];
expect(findSourceAudioTrackForIntent(_audio('x', lang: 'eng', title: 'Commentary'), rows)?.id, 2);
});
test('a unique title vouches for untagged tracks', () {
final rows = [_plexAudio(1, title: 'Main'), _plexAudio(2, title: 'Commentary')];
expect(findSourceAudioTrackForIntent(_audio('x', title: 'Commentary'), rows)?.id, 2);
});
test('codec parity alone never vouches for an untagged track', () {
final rows = [_plexAudio(1, codec: 'ac3')];
expect(findSourceAudioTrackForIntent(_audio('x', title: 'Commentary', codec: 'ac3'), rows), isNull);
});
test('an ambiguous same-title untagged pair declines rather than guesses', () {
final rows = [_plexAudio(1, title: 'Stereo'), _plexAudio(2, title: 'Stereo')];
expect(findSourceAudioTrackForIntent(_audio('x', title: 'Stereo'), rows), isNull);
});
test('a declared language contradiction is never rescued by a title', () {
final rows = [_plexAudio(1, languageCode: 'eng', title: 'Commentary')];
expect(findSourceAudioTrackForIntent(_audio('x', lang: 'swe', title: 'Commentary'), rows), isNull);
});
test('channel count breaks ties between otherwise equal rows', () {
final rows = [
_plexAudio(1, languageCode: 'eng', channels: 2, codec: 'aac'),
_plexAudio(2, languageCode: 'eng', channels: 6, codec: 'aac'),
];
expect(findSourceAudioTrackForIntent(_audio('x', lang: 'eng', channels: 6, codec: 'aac'), rows)?.id, 2);
});
test('the native twin skips the auto and off sentinels', () {
final tracks = [AudioTrack.auto, AudioTrack.off, _audio('3', lang: 'eng')];
expect(findNativeAudioTrackForIntent(_audio('x', lang: 'eng'), tracks)?.id, '3');
});
test('a commentary title outranks a retained codec across a codec flip', () {
final rows = [
_plexAudio(1, languageCode: 'eng', title: 'Main', codec: 'ac3'),
_plexAudio(2, languageCode: 'eng', title: 'Commentary', codec: 'aac'),
];
final carried = _audio('x', lang: 'eng', title: 'Commentary', codec: 'ac3');
expect(findSourceAudioTrackForIntent(carried, rows)?.id, 2);
});
test('an indistinguishable same-language pair declines rather than latching by order', () {
final rows = [
_plexAudio(1, languageCode: 'eng', codec: 'aac', channels: 2),
_plexAudio(2, languageCode: 'eng', codec: 'aac', channels: 2),
];
expect(findSourceAudioTrackForIntent(_audio('x', lang: 'eng', codec: 'aac'), rows), isNull);
});
});
group('selectSubtitleTrack - intent preferences (#1716/#1717)', () {
const forcedIntent = SubtitlePreference.intent(
SubtitleIntent(language: 'fre', forced: true, title: 'FR Forced [ASS]', codec: 'ass'),
);
test('a class-preserving intent match carries navigation priority', () {
final tracks = [_sub('1', lang: 'fre', codec: 'ass'), _sub('2', lang: 'fre', title: 'FR Forced', codec: 'ass')];
final result = _svc().selectSubtitleTrack(tracks, forcedIntent, null)!;
expect(result.priority, TrackSelectionPriority.navigation);
expect(result.track.id, '2');
});
test('a declined forced intent falls to the server-selected full track', () {
final tracks = [_sub('1', lang: 'fre', codec: 'ass')];
final info = _info(
subs: [_plexSub(10, languageCode: 'fre', codec: 'ass', selected: true)],
);
final result = _svc(info: info).selectSubtitleTrack(tracks, forcedIntent, null)!;
expect(result.priority, TrackSelectionPriority.serverSelected);
expect(result.track.id, '1');
});
test("a declined forced intent honors the server's subtitles-off state", () {
// #1717 headline: the next episode has no forced track and no selected
// stream — the server's own decision (off) wins over the full track.
final tracks = [_sub('1', lang: 'fre', codec: 'ass')];
final info = _info(
subs: [_plexSub(10, languageCode: 'fre', codec: 'ass')],
);
final result = _svc(info: info).selectSubtitleTrack(tracks, forcedIntent, null)!;
expect(result.priority, TrackSelectionPriority.serverSelected);
expect(result.track.id, 'no');
});
test('a servable intent stays pending until its native track arrives', () {
final info = _info(
subs: [
_plexSub(10, languageCode: 'fre', codec: 'ass'),
_plexSub(11, languageCode: 'fre', title: 'FR Forced', codec: 'ass'),
],
);
final service = _svc(info: info);
final arrived = [_sub('1', lang: 'fre', codec: 'ass')];
expect(service.selectSubtitleTrack(arrived, forcedIntent, null), isNull);
final complete = [...arrived, _sub('2', lang: 'fre', title: 'FR Forced', codec: 'ass')];
final resolved = service.selectSubtitleTrack(complete, forcedIntent, null)!;
expect(resolved.priority, TrackSelectionPriority.navigation);
expect(resolved.track.id, '2');
});
test('a deadline pass resolves a pending intent through the ladder', () {
final info = _info(
subs: [
_plexSub(10, languageCode: 'fre', codec: 'ass', selected: true),
_plexSub(11, languageCode: 'fre', title: 'FR Forced', codec: 'ass'),
],
);
final arrived = [_sub('1', lang: 'fre', codec: 'ass', isDefault: true)];
final result = _svc(info: info).selectSubtitleTrack(arrived, forcedIntent, null, waitForPendingSource: false)!;
expect(result.priority, TrackSelectionPriority.serverSelected);
expect(result.track.id, '1');
});
test('a full intent does not grab a forced-only catalog (symmetric decline)', () {
const fullIntent = SubtitlePreference.intent(
SubtitleIntent(language: 'fre', forced: false, title: 'French', codec: 'ass'),
);
final tracks = [_sub('1', lang: 'fre', title: 'FR Forced', codec: 'ass')];
final result = _svc().selectSubtitleTrack(tracks, fullIntent, null)!;
expect(result.priority, TrackSelectionPriority.off);
expect(result.track.id, 'no');
});
});
group('container-sidecar ordinal fallback', () {
final plexTracks = [_plexSub(40, index: 0), _plexSub(41, index: 1)];
final nativeTracks = [
_sub('2_0', isExternal: true, isContainer: true),
_sub('2_1', isExternal: true, isContainer: true),
];
test('maps a metadata-free Plex stream to its container track', () {
expect(findMpvTrackForPlexSubtitle(plexTracks[1], nativeTracks, allPlexTracks: plexTracks), nativeTracks[1]);
});
test('maps a metadata-free container track back to its Plex stream', () {
expect(findPlexTrackForMpvSubtitle(nativeTracks[0], plexTracks, allMpvTracks: nativeTracks)?.id, 40);
});
});
group('findPlexTrackForMpvAudio - same-language disambiguation', () {
// Two French audio tracks differing only by channel count, titles null.
final plexTracks = [
_plexAudio(20, index: 0, languageCode: 'fre', codec: 'ac3', channels: 2),
_plexAudio(21, index: 1, languageCode: 'fre', codec: 'ac3', channels: 6),
];
final mpvStereo = _audio('1_0', lang: 'fre', codec: 'ac3', channels: 2);
final mpvSurround = _audio('1_1', lang: 'fre', codec: 'ac3', channels: 6);
final allMpv = [mpvStereo, mpvSurround];
test('surround player track maps to the 6-channel Plex stream', () {
final match = findPlexTrackForMpvAudio(mpvSurround, plexTracks, allMpvTracks: allMpv);
expect(match?.id, 21);
});
test('stereo player track maps to the 2-channel Plex stream', () {
final match = findPlexTrackForMpvAudio(mpvStereo, plexTracks, allMpvTracks: allMpv);
expect(match?.id, 20);
});
});
}