@HighFrequencyInvocation
    public Optional<EncryptAlgorithm> findQueryEncryptor(final String columnName) {
        if (!isEncryptColumn(columnName)) {
            return Optional.empty();
        }
        return Optional.of(getEncryptColumn(columnName).getQueryEncryptor());
    }
@Test
    void assertFindQueryEncryptorWithNotEncryptColumn() {
        assertThat(encryptTable.findQueryEncryptor("invalidColumn"), is(Optional.empty()));
    }