Melo/test/library/song_media_test.dart

import 'package:flutter_test/flutter_test.dart';
import 'package:melo/library/database.dart';
import 'package:melo/library/song_media.dart';

Song _song({String? coverPath}) => Song(
      id: 'song-1',
      path: '/a.mp3',
      title: 'A',
      coverPath: coverPath,
      dateAddedMs: 0,
      updatedAtMs: 0,
      deleted: false,
      playCount: 0,
      categoriesEdited: false,
    );

void main() {
  test('songToMediaItem trägt die Song-UUID in extras', () {
    final song = Song(
      id: 'song-1',
      path: '/a.mp3',
      title: 'A',
      artist: null,
      album: null,
      durationMs: null,
      coverPath: null,
      dateAddedMs: 0,
      updatedAtMs: 0,
      deleted: false,
      playCount: 0,
      categoriesEdited: false,
    );

    final item = songToMediaItem(song);

    expect(item.extras?['songId'], song.id);
  });

  test('ohne Cover-Vorgabe gilt das eigene Cover des Songs', () {
    final item = songToMediaItem(_song(coverPath: '/eigen.img'));

    expect(item.artUri, Uri.file('/eigen.img'));
  });

  test('Cover-Vorgabe (z. B. aus der Kategorie) gewinnt — auch auf dem '
      'Sperrbildschirm', () {
    final item =
        songToMediaItem(_song(coverPath: '/eigen.img'), cover: '/kategorie.img');

    expect(item.artUri, Uri.file('/kategorie.img'));
  });

  test('ohne jedes Cover bleibt artUri leer', () {
    expect(songToMediaItem(_song()).artUri, isNull);
  });
}