public byte[] getAuthenticationPluginData() {
        return Bytes.concat(authenticationPluginDataPart1, authenticationPluginDataPart2);
    }
@Test
    void assertGetAuthPluginDataWithoutArguments() {
        MySQLAuthenticationPluginData actual = new MySQLAuthenticationPluginData();
        assertThat(actual.getAuthenticationPluginDataPart1().length, is(8));
        assertThat(actual.getAuthenticationPluginDataPart2().length, is(12));
        assertThat(actual.getAuthenticationPluginData().length, is(20));
    }