import 'package:test/test.dart';
import 'package:tdd_katas/string_calculator.dart';

void main() {
  group('String Calculator - Bug Hunt', () {
    late StringCalculator calculator;

    setUp(() {
      calculator = StringCalculator();
    });

    test('empty string returns 0', () {
      expect(calculator.add(''), equals(0));
    });

    test('single number returns that number', () {
      expect(calculator.add('5'), equals(5));
      expect(calculator.add('42'), equals(42));
    });
  });
}