@Override
    public String toString() {
        return "SymmetricEncryptionConfig{"
                + "enabled=" + enabled
                + ", algorithm='" + algorithm + '\''
                + ", password='***'"
                + ", salt='***'"
                + ", iterationCount=***"
                + ", key=***"
                + '}';
    }
@Test
    public void testToString() {
        assertContains(config.toString(), "SymmetricEncryptionConfig");
    }