### Question:
App { public static void main(String[] args) { var commander = new Commander( new Sergeant(new Soldier(), new Soldier(), new Soldier()), new Sergeant(new Soldier(), new Soldier(), new Soldier()) ); commander.accept(new SoldierVisitor()); commander.accept(new SergeantVisitor()); commander.accept(new CommanderVisitor()); }  static void main(String[] args);  }### Answer:
@Test void shouldExecuteWithoutException() { assertDoesNotThrow(() -> App.main(new String[]{})); }