Melo/test/library/count_songs_test.dart

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

Future<void> _insert(MeloDb db, String id, {bool deleted = false}) {
  return db.into(db.songs).insert(SongsCompanion.insert(
        id: id,
        path: '/$id.mp3',
        title: id,
        dateAddedMs: 0,
        updatedAtMs: 0,
        deleted: Value(deleted),
      ));
}

void main() {
  test('countSongs zählt nur die Titel, die noch da sind', () async {
    final db = MeloDb(NativeDatabase.memory());
    await _insert(db, 'a');
    await _insert(db, 'b');
    await _insert(db, 'c', deleted: true);

    expect(await db.countSongs(), 2);

    await db.close();
  });
}