import 'package:flutter_test/flutter_test.dart';
import 'package:cashumit/services/invoice_number_service.dart';

void main() {
  test('generate menghasilkan 6 digit hex uppercase', () {
    for (var i = 0; i < 100; i++) {
      final number = InvoiceNumberService.generate();
      expect(number, matches(RegExp(r'^[0-9A-F]{6}$')));
    }
  });

  test('nextNumber menghasilkan 6 digit hex uppercase', () {
    final number = InvoiceNumberService.nextNumber();
    expect(number, matches(RegExp(r'^[0-9A-F]{6}$')));
  });
}