import 'package:test/test.dart'; import 'package:tdd_katas/mars_rover.dart'; void main() { group('Mars Rover:', () { test('rover reports initial position and direction', () { final rover = Rover(x: 0, y: 0, direction: 'N'); expect(rover.x, equals(0)); expect(rover.y, equals(0)); expect(rover.direction, equals('N')); }); }); }