Melo/test/player/play_count_test.dart

import 'package:drift/native.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:melo/library/database.dart';
import 'package:melo/player/audio_handler.dart';

void main() {
  group('shouldCountPlay', () {
    test('zählt einen neu gestarteten Titel', () {
      expect(shouldCountPlay(0, null), isTrue);
      expect(shouldCountPlay(3, 2), isTrue);
    });

    test('zählt denselben Titel nicht mehrfach', () {
      expect(shouldCountPlay(2, 2), isFalse);
    });

    test('zählt nicht ohne aktuellen Titel', () {
      expect(shouldCountPlay(null, 1), isFalse);
    });
  });

  group('MeloDb.incrementPlayCount', () {
    late MeloDb db;
    setUp(() => db = MeloDb(NativeDatabase.memory()));
    tearDown(() => db.close());

    test('erhöht den Zähler des Songs um eins', () async {
      await db.upsertSongs([
        SongsCompanion.insert(
          id: '1',
          path: '/a.mp3',
          title: 'Song A',
          dateAddedMs: 0,
          updatedAtMs: 0,
        ),
      ]);

      await db.incrementPlayCount('1');
      await db.incrementPlayCount('1');

      final song = (await db.watchSongs().first).single;
      expect(song.playCount, 2);
    });

    test('lässt andere Songs unberührt', () async {
      await db.upsertSongs([
        SongsCompanion.insert(
          id: '1', path: '/a.mp3', title: 'A', dateAddedMs: 0, updatedAtMs: 0),
        SongsCompanion.insert(
          id: '2', path: '/b.mp3', title: 'B', dateAddedMs: 0, updatedAtMs: 0),
      ]);

      await db.incrementPlayCount('1');

      final songs = await db.watchSongs().first;
      expect(songs.firstWhere((s) => s.id == '1').playCount, 1);
      expect(songs.firstWhere((s) => s.id == '2').playCount, 0);
    });
  });
}