AES128Cryptor extends AESCryptorAbstract { @Override public String newKey() { return GEN(128); } AES128Cryptor(); @Override String encrypt(String str); @Override String decrypt(String str); @Override String newKey();  }
@Test public void testNewKey() throws Exception{ System.out.println("newKey"); AES128Cryptor instance = new AES128Cryptor(); String result = instance.newKey(); assertNotNull(result); }