static Class<?> getCommandClass(String request) {
    try {
      return Class.forName("com.iluwatar.front.controller." + request + "Command");
    } catch (ClassNotFoundException e) {
      return UnknownCommand.class;
    }
  }
@Test
  void testGetCommandClassKnown() {
    Class<?> commandClass = Dispatcher.getCommandClass("Archer");
    assertNotNull(commandClass);
    assertEquals(ArcherCommand.class, commandClass);
  }