fav_model_act_test.dart

void main() {
  group("Favorites class test", () {
    test('testing add function', () {
      var note = Note(description: 'description', title: 'title');
      final fav = Favorites();
      fav.add(note);
      expect(fav.items.length, 1);
      expect(fav.items.contains(note), true);
    });

    test('removing a note', () {
      var note = Note(description: 'description', title: 'title');
      final fav = Favorites();
      fav.add(note);
      expect(fav.items.length, 1);
      expect(fav.items.contains(note), true);
      fav.remove(fav.items.indexOf(note));
      expect(fav.items.length, 0);
      expect(fav.items.contains(note), false);
    });
  });
}