// SPDX-License-Identifier: MIT

use netlink_packet_core::{Emitable, Parseable};

use crate::{
    link::{
        link_flag::LinkFlags, InfoData, InfoIpVtap, InfoKind, IpVtapFlags,
        IpVtapMode, LinkAttribute, LinkHeader, LinkInfo, LinkLayerType,
        LinkMessage, LinkMessageBuffer,
    },
    AddressFamily,
};

#[test]
fn test_ipvtap_link_info() {
    let raw: Vec<u8> = vec![
        0x00, 0x00, 0x01, 0x00, 0x12, 0x00, 0x00, 0x00, 0x02, 0x10, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x24, 0x00, 0x12, 0x00, 0x0b, 0x00, 0x01, 0x00,
        0x69, 0x70, 0x76, 0x74, 0x61, 0x70, 0x00, 0x00, 0x14, 0x00, 0x02, 0x00,
        0x06, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x02, 0x00,
        0x02, 0x00, 0x00, 0x00,
    ];

    let expected = LinkMessage {
        header: LinkHeader {
            interface_family: AddressFamily::Unspec,
            index: 18,
            link_layer_type: LinkLayerType::Ether,
            flags: LinkFlags::Broadcast | LinkFlags::Multicast,
            change_mask: LinkFlags::empty(),
        },
        attributes: vec![LinkAttribute::LinkInfo(vec![
            LinkInfo::Kind(InfoKind::IpVtap),
            LinkInfo::Data(InfoData::IpVtap(vec![
                InfoIpVtap::Mode(IpVtapMode::L2),
                InfoIpVtap::Flags(IpVtapFlags::Vepa),
            ])),
        ])],
    };

    assert_eq!(
        expected,
        LinkMessage::parse(&LinkMessageBuffer::new(&raw)).unwrap()
    );

    let mut buf = vec![0; expected.buffer_len()];

    expected.emit(&mut buf);

    assert_eq!(buf, raw);
}
