assertThat(cipher1.decryptText(encrypted1), is(original));
        assertThat(cipher2.decryptText(encrypted2), is(original));
    }

    @Test
    public void testEmptyString() {
        final CachedCipher cipher = new CachedCipher();
        cipher.setKey("mySecretKey");

        final String original = "";
        final String encrypted = cipher.encryptText(original);