import 'package:flutter_test/flutter_test.dart';
import 'package:spotiflac_android/utils/lyrics_parser.dart';
import 'package:spotiflac_android/utils/lyrics_timeline.dart';
void main() {
List<(int, int)> gaps(String text) =>
lyricsTimelineWithGaps(LyricsParser.parse(text).lines)
.where((line) => line.text.isEmpty)
.map((line) => (line.time.inMilliseconds, line.end!.inMilliseconds))
.toList();
test('intro and explicit LRC breaks count down, never the outro', () {
const text = '''
[00:00.00]
[00:09.00]First
[00:12.00]
[00:14.00]
[00:21.00]Second
[00:25.00]
[00:30.00]
''';
expect(gaps(text), [(0, 9000), (12000, 21000)]);
expect(
lyricsTimelineWithGaps(LyricsParser.parse(text).lines).last.text,
'Second',
);
});
test('TTML line ends identify breaks without empty timestamps', () {
expect(
gaps('''
'''),
[(0, 9000), (12000, 21000)],
);
});
test('enhanced LRC word ends retain held vocals before a break', () {
expect(
gaps('''
[00:00.00]<00:00.00>Held<00:16.00>
[00:20.00]<00:20.00>Last<00:24.00>
'''),
[(16000, 20000)],
);
});
test('overlapping lines cannot start a countdown during a held vocal', () {
expect(
gaps('''
'''),
[(16000, 20000)],
);
});
test('plain LRC does not invent an end time from distance between lines', () {
expect(gaps('[00:00]Held\n[00:30]Last'), isEmpty);
expect(gaps('[00:00]\n[00:30]'), isEmpty);
expect(gaps('Unsynced text'), isEmpty);
});
test('short rests and immediate vocals have no flashing countdown', () {
expect(gaps('[00:02]First\n[00:04]\n[00:06]Last'), isEmpty);
expect(gaps('[00:00]First\n[00:04]\n[00:07]Last'), [(4000, 7000)]);
});
test('offset correction also moves the countdown boundaries', () {
expect(gaps('[offset:500]\n[00:09]First\n[00:12]\n[00:21]Last'), [
(0, 8500),
(11500, 20500),
]);
});
test('word ends protect against an early or invalid paragraph end', () {
expect(
gaps('''
'''),
[(8000, 12000)],
);
expect(
gaps('''
'''),
isEmpty,
);
});
}