### Question:
App { public static void main(String[] args) { var filters = new Pipeline<>(new RemoveAlphabetsHandler()) .addHandler(new RemoveDigitsHandler()) .addHandler(new ConvertToCharArrayHandler()); filters.execute("GoYankees123!"); }  static void main(String[] args);  }### Answer:
@Test void shouldExecuteApplicationWithoutException() { assertDoesNotThrow(() -> App.main(new String[]{})); }