import 'package:flutter_test/flutter_test.dart';
import 'package:uvok_epaper_badge/extensions/list_ext.dart';

void main() {
  group('ListExt.addOrReplaceWhere', () {
    test('adds element when predicate returns false for all', () {
      final list = [1, 2, 3];
      list.addOrReplaceWhere(4, (x) => x == 5);
      expect(list, equals([1, 2, 3, 4]));
    });

    test('replaces element when predicate matches and no replaceCondition', () {
      final list = [1, 2, 3];
      list.addOrReplaceWhere(99, (x) => x == 2);
      expect(list, equals([1, 99, 3]));
    });

    test('does not replace if replaceCondition returns false', () {
      final list = [1, 2, 3];
      list.addOrReplaceWhere(99, (x) => x == 2, replaceCondition: (x) => false);
      expect(list, equals([1, 2, 3]));
    });

    test('replaces if replaceCondition returns true', () {
      final list = [1, 2, 3];
      list.addOrReplaceWhere(99, (x) => x == 2, replaceCondition: (x) => true);
      expect(list, equals([1, 99, 3]));
    });

    test('only replaces the first matching element', () {
      final list = [2, 2, 3];
      list.addOrReplaceWhere(99, (x) => x == 2);
      expect(list, equals([99, 2, 3]));
    });
  });
}