1 files changed, 434 insertions, 0 deletions
diff --git a/src/iface/interface/tests/sixlowpan.rs b/src/iface/interface/tests/sixlowpan.rs
new file mode 100644
index 0000000..676835e
--- /dev/null
+++ b/src/iface/interface/tests/sixlowpan.rs
@@ -0,0 +1,434 @@
+use super::*;
+
+#[rstest]
+#[case::ieee802154(Medium::Ieee802154)]
+#[cfg(feature = "medium-ieee802154")]
+fn ieee802154_wrong_pan_id(#[case] medium: Medium) {
+    let data = [
+        0x41, 0xcc, 0x3b, 0xff, 0xbe, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x0b, 0x1a, 0x62, 0x3a,
+        0xa6, 0x34, 0x57, 0x29, 0x1c, 0x26,
+    ];
+
+    let response = None;
+
+    let (mut iface, mut sockets, _device) = setup(medium);
+
+    assert_eq!(
+        iface.inner.process_ieee802154(
+            &mut sockets,
+            PacketMeta::default(),
+            &data[..],
+            &mut iface.fragments
+        ),
+        response,
+    );
+}
+
+#[rstest]
+#[case::ieee802154(Medium::Ieee802154)]
+#[cfg(feature = "medium-ieee802154")]
+fn icmp_echo_request(#[case] medium: Medium) {
+    let data = [
+        0x41, 0xcc, 0x3b, 0xef, 0xbe, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x0b, 0x1a, 0x62, 0x3a,
+        0xa6, 0x34, 0x57, 0x29, 0x1c, 0x26, 0x6a, 0x33, 0x0a, 0x62, 0x17, 0x3a, 0x80, 0x00, 0xb0,
+        0xe3, 0x00, 0x04, 0x00, 0x01, 0x82, 0xf2, 0x82, 0x64, 0x00, 0x00, 0x00, 0x00, 0x66, 0x23,
+        0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+        0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+        0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36,
+        0x37,
+    ];
+
+    let response = Some(Packet::new_ipv6(
+        Ipv6Repr {
+            src_addr: Ipv6Address::from_parts(&[0xfe80, 0, 0, 0, 0x180b, 0x4242, 0x4242, 0x4242]),
+            dst_addr: Ipv6Address::from_parts(&[0xfe80, 0, 0, 0, 0x241c, 0x2957, 0x34a6, 0x3a62]),
+            hop_limit: 64,
+            next_header: IpProtocol::Icmpv6,
+            payload_len: 64,
+        },
+        IpPayload::Icmpv6(Icmpv6Repr::EchoReply {
+            ident: 4,
+            seq_no: 1,
+            data: &[
+                0x82, 0xf2, 0x82, 0x64, 0x00, 0x00, 0x00, 0x00, 0x66, 0x23, 0x0c, 0x00, 0x00, 0x00,
+                0x00, 0x00, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
+                0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29,
+                0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+            ],
+        }),
+    ));
+
+    let (mut iface, mut sockets, _device) = setup(medium);
+    iface.update_ip_addrs(|ips| {
+        ips.push(IpCidr::Ipv6(Ipv6Cidr::new(
+            Ipv6Address::from_parts(&[0xfe80, 0, 0, 0, 0x180b, 0x4242, 0x4242, 0x4242]),
+            10,
+        )))
+        .unwrap();
+    });
+
+    assert_eq!(
+        iface.inner.process_ieee802154(
+            &mut sockets,
+            PacketMeta::default(),
+            &data[..],
+            &mut iface.fragments
+        ),
+        response,
+    );
+}
+
+#[test]
+#[cfg(feature = "proto-sixlowpan-fragmentation")]
+fn test_echo_request_sixlowpan_128_bytes() {
+    use crate::phy::Checksum;
+
+    let (mut iface, mut sockets, mut device) = setup(Medium::Ieee802154);
+    iface.update_ip_addrs(|ips| {
+        ips.push(IpCidr::Ipv6(Ipv6Cidr::new(
+            Ipv6Address::new(0xfe80, 0x0, 0x0, 0x0, 0x92fc, 0x48c2, 0xa441, 0xfc76),
+            10,
+        )))
+        .unwrap();
+    });
+    // TODO: modify the example, such that we can also test if the checksum is correctly
+    // computed.
+    iface.inner.caps.checksum.icmpv6 = Checksum::None;
+
+    assert_eq!(iface.inner.caps.medium, Medium::Ieee802154);
+    let now = iface.inner.now();
+
+    iface.inner.neighbor_cache.fill(
+        Ipv6Address([0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0x2, 0, 0, 0, 0, 0, 0, 0]).into(),
+        HardwareAddress::Ieee802154(Ieee802154Address::default()),
+        now,
+    );
+
+    let mut ieee802154_repr = Ieee802154Repr {
+        frame_type: Ieee802154FrameType::Data,
+        security_enabled: false,
+        frame_pending: false,
+        ack_request: false,
+        sequence_number: Some(5),
+        pan_id_compression: true,
+        frame_version: Ieee802154FrameVersion::Ieee802154_2003,
+        dst_pan_id: Some(Ieee802154Pan(0xbeef)),
+        dst_addr: Some(Ieee802154Address::Extended([
+            0x90, 0xfc, 0x48, 0xc2, 0xa4, 0x41, 0xfc, 0x76,
+        ])),
+        src_pan_id: Some(Ieee802154Pan(0xbeef)),
+        src_addr: Some(Ieee802154Address::Extended([
+            0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x0b, 0x1a,
+        ])),
+    };
+
+    // NOTE: this data is retrieved from tests with Contiki-NG
+
+    let request_first_part_packet = SixlowpanFragPacket::new_checked(&[
+        0xc0, 0xb0, 0x00, 0x8e, 0x6a, 0x33, 0x05, 0x25, 0x2c, 0x3a, 0x80, 0x00, 0xe0, 0x71, 0x00,
+        0x27, 0x00, 0x02, 0xa2, 0xc2, 0x2d, 0x63, 0x00, 0x00, 0x00, 0x00, 0xd9, 0x5e, 0x0c, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a,
+        0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29,
+        0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
+        0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+        0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+    ])
+    .unwrap();
+
+    let request_first_part_iphc_packet =
+        SixlowpanIphcPacket::new_checked(request_first_part_packet.payload()).unwrap();
+
+    let request_first_part_iphc_repr = SixlowpanIphcRepr::parse(
+        &request_first_part_iphc_packet,
+        ieee802154_repr.src_addr,
+        ieee802154_repr.dst_addr,
+        &iface.inner.sixlowpan_address_context,
+    )
+    .unwrap();
+
+    assert_eq!(
+        request_first_part_iphc_repr.src_addr,
+        Ipv6Address([
+            0xfe, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x42, 0x42, 0x42, 0x42, 0x42, 0xb,
+            0x1a,
+        ]),
+    );
+    assert_eq!(
+        request_first_part_iphc_repr.dst_addr,
+        Ipv6Address([
+            0xfe, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x92, 0xfc, 0x48, 0xc2, 0xa4, 0x41, 0xfc,
+            0x76,
+        ]),
+    );
+
+    let request_second_part = [
+        0xe0, 0xb0, 0x00, 0x8e, 0x10, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
+        0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
+        0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+        0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+    ];
+
+    assert_eq!(
+        iface.inner.process_sixlowpan(
+            &mut sockets,
+            PacketMeta::default(),
+            &ieee802154_repr,
+            &request_first_part_packet.into_inner()[..],
+            &mut iface.fragments
+        ),
+        None
+    );
+
+    ieee802154_repr.sequence_number = Some(6);
+
+    // data that was generated when using `ping -s 128`
+    let data = &[
+        0xa2, 0xc2, 0x2d, 0x63, 0x00, 0x00, 0x00, 0x00, 0xd9, 0x5e, 0x0c, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d,
+        0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c,
+        0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b,
+        0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a,
+        0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
+        0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
+        0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+        0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+    ];
+
+    let result = iface.inner.process_sixlowpan(
+        &mut sockets,
+        PacketMeta::default(),
+        &ieee802154_repr,
+        &request_second_part,
+        &mut iface.fragments,
+    );
+
+    assert_eq!(
+        result,
+        Some(Packet::new_ipv6(
+            Ipv6Repr {
+                src_addr: Ipv6Address([
+                    0xfe, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x92, 0xfc, 0x48, 0xc2, 0xa4, 0x41,
+                    0xfc, 0x76,
+                ]),
+                dst_addr: Ipv6Address([
+                    0xfe, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x42, 0x42, 0x42, 0x42, 0x42,
+                    0xb, 0x1a,
+                ]),
+                next_header: IpProtocol::Icmpv6,
+                payload_len: 136,
+                hop_limit: 64,
+            },
+            IpPayload::Icmpv6(Icmpv6Repr::EchoReply {
+                ident: 39,
+                seq_no: 2,
+                data,
+            })
+        ))
+    );
+
+    iface.inner.neighbor_cache.fill(
+        IpAddress::Ipv6(Ipv6Address([
+            0xfe, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x42, 0x42, 0x42, 0x42, 0x42, 0xb, 0x1a,
+        ])),
+        HardwareAddress::Ieee802154(Ieee802154Address::default()),
+        Instant::now(),
+    );
+
+    let tx_token = device.transmit(Instant::now()).unwrap();
+    iface.inner.dispatch_ieee802154(
+        Ieee802154Address::default(),
+        tx_token,
+        PacketMeta::default(),
+        result.unwrap(),
+        &mut iface.fragmenter,
+    );
+
+    assert_eq!(
+        device.queue.pop_front().unwrap(),
+        &[
+            0x41, 0xcc, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x2, 0x2, 0x2,
+            0x2, 0x2, 0x2, 0x2, 0xc0, 0xb0, 0x5, 0x4e, 0x7a, 0x11, 0x3a, 0x92, 0xfc, 0x48, 0xc2,
+            0xa4, 0x41, 0xfc, 0x76, 0x40, 0x42, 0x42, 0x42, 0x42, 0x42, 0xb, 0x1a, 0x81, 0x0, 0x0,
+            0x0, 0x0, 0x27, 0x0, 0x2, 0xa2, 0xc2, 0x2d, 0x63, 0x0, 0x0, 0x0, 0x0, 0xd9, 0x5e, 0xc,
+            0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
+            0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+            0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35,
+            0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43,
+            0x44, 0x45, 0x46, 0x47,
+        ]
+    );
+
+    iface.poll(Instant::now(), &mut device, &mut sockets);
+
+    assert_eq!(
+        device.queue.pop_front().unwrap(),
+        &[
+            0x41, 0xcc, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x2, 0x2, 0x2,
+            0x2, 0x2, 0x2, 0x2, 0xe0, 0xb0, 0x5, 0x4e, 0xf, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d,
+            0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b,
+            0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
+            0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+            0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+        ]
+    );
+}
+
+#[test]
+#[cfg(feature = "proto-sixlowpan-fragmentation")]
+fn test_sixlowpan_udp_with_fragmentation() {
+    use crate::phy::Checksum;
+
+    let mut ieee802154_repr = Ieee802154Repr {
+        frame_type: Ieee802154FrameType::Data,
+        security_enabled: false,
+        frame_pending: false,
+        ack_request: false,
+        sequence_number: Some(5),
+        pan_id_compression: true,
+        frame_version: Ieee802154FrameVersion::Ieee802154_2003,
+        dst_pan_id: Some(Ieee802154Pan(0xbeef)),
+        dst_addr: Some(Ieee802154Address::Extended([
+            0x90, 0xfc, 0x48, 0xc2, 0xa4, 0x41, 0xfc, 0x76,
+        ])),
+        src_pan_id: Some(Ieee802154Pan(0xbeef)),
+        src_addr: Some(Ieee802154Address::Extended([
+            0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x0b, 0x1a,
+        ])),
+    };
+
+    let (mut iface, mut sockets, mut device) = setup(Medium::Ieee802154);
+    iface.update_ip_addrs(|ips| {
+        ips.push(IpCidr::Ipv6(Ipv6Cidr::new(
+            Ipv6Address::new(0xfe80, 0x0, 0x0, 0x0, 0x92fc, 0x48c2, 0xa441, 0xfc76),
+            10,
+        )))
+        .unwrap();
+    });
+    iface.inner.caps.checksum.udp = Checksum::None;
+
+    let udp_rx_buffer = udp::PacketBuffer::new(vec![udp::PacketMetadata::EMPTY], vec![0; 1024 * 4]);
+    let udp_tx_buffer = udp::PacketBuffer::new(vec![udp::PacketMetadata::EMPTY], vec![0; 1024 * 4]);
+    let udp_socket = udp::Socket::new(udp_rx_buffer, udp_tx_buffer);
+    let udp_socket_handle = sockets.add(udp_socket);
+
+    {
+        let socket = sockets.get_mut::<udp::Socket>(udp_socket_handle);
+        assert_eq!(socket.bind(6969), Ok(()));
+        assert!(!socket.can_recv());
+        assert!(socket.can_send());
+    }
+
+    let udp_first_part = &[
+        0xc0, 0xbc, 0x00, 0x92, 0x6e, 0x33, 0x07, 0xe7, 0xdc, 0xf0, 0xd3, 0xc9, 0x1b, 0x39, 0xbf,
+        0xa0, 0x4c, 0x6f, 0x72, 0x65, 0x6d, 0x20, 0x69, 0x70, 0x73, 0x75, 0x6d, 0x20, 0x64, 0x6f,
+        0x6c, 0x6f, 0x72, 0x20, 0x73, 0x69, 0x74, 0x20, 0x61, 0x6d, 0x65, 0x74, 0x2c, 0x20, 0x63,
+        0x6f, 0x6e, 0x73, 0x65, 0x63, 0x74, 0x65, 0x74, 0x75, 0x72, 0x20, 0x61, 0x64, 0x69, 0x70,
+        0x69, 0x73, 0x63, 0x69, 0x6e, 0x67, 0x20, 0x65, 0x6c, 0x69, 0x74, 0x2e, 0x20, 0x49, 0x6e,
+        0x20, 0x61, 0x74, 0x20, 0x72, 0x68, 0x6f, 0x6e, 0x63, 0x75, 0x73, 0x20, 0x74, 0x6f, 0x72,
+        0x74, 0x6f, 0x72, 0x2e, 0x20, 0x43, 0x72, 0x61, 0x73, 0x20, 0x62, 0x6c, 0x61, 0x6e,
+    ];
+
+    assert_eq!(
+        iface.inner.process_sixlowpan(
+            &mut sockets,
+            PacketMeta::default(),
+            &ieee802154_repr,
+            udp_first_part,
+            &mut iface.fragments
+        ),
+        None
+    );
+
+    ieee802154_repr.sequence_number = Some(6);
+
+    let udp_second_part = &[
+        0xe0, 0xbc, 0x00, 0x92, 0x11, 0x64, 0x69, 0x74, 0x20, 0x74, 0x65, 0x6c, 0x6c, 0x75, 0x73,
+        0x20, 0x64, 0x69, 0x61, 0x6d, 0x2c, 0x20, 0x76, 0x61, 0x72, 0x69, 0x75, 0x73, 0x20, 0x76,
+        0x65, 0x73, 0x74, 0x69, 0x62, 0x75, 0x6c, 0x75, 0x6d, 0x20, 0x6e, 0x69, 0x62, 0x68, 0x20,
+        0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x64, 0x6f, 0x20, 0x6e, 0x65, 0x63, 0x2e,
+    ];
+
+    assert_eq!(
+        iface.inner.process_sixlowpan(
+            &mut sockets,
+            PacketMeta::default(),
+            &ieee802154_repr,
+            udp_second_part,
+            &mut iface.fragments
+        ),
+        None
+    );
+
+    let socket = sockets.get_mut::<udp::Socket>(udp_socket_handle);
+
+    let udp_data = b"Lorem ipsum dolor sit amet, consectetur adipiscing elit. \
+In at rhoncus tortor. Cras blandit tellus diam, varius vestibulum nibh commodo nec.";
+    assert_eq!(
+        socket.recv(),
+        Ok((
+            &udp_data[..],
+            IpEndpoint {
+                addr: IpAddress::Ipv6(Ipv6Address([
+                    0xfe, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40, 0x42, 0x42, 0x42, 0x42, 0x42,
+                    0xb, 0x1a,
+                ])),
+                port: 54217,
+            }
+            .into()
+        ))
+    );
+
+    let tx_token = device.transmit(Instant::now()).unwrap();
+    iface.inner.dispatch_ieee802154(
+        Ieee802154Address::default(),
+        tx_token,
+        PacketMeta::default(),
+        Packet::new_ipv6(
+            Ipv6Repr {
+                src_addr: Ipv6Address::default(),
+                dst_addr: Ipv6Address::default(),
+                next_header: IpProtocol::Udp,
+                payload_len: udp_data.len(),
+                hop_limit: 64,
+            },
+            IpPayload::Udp(
+                UdpRepr {
+                    src_port: 1234,
+                    dst_port: 1234,
+                },
+                udp_data,
+            ),
+        ),
+        &mut iface.fragmenter,
+    );
+
+    iface.poll(Instant::now(), &mut device, &mut sockets);
+
+    assert_eq!(
+        device.queue.pop_front().unwrap(),
+        &[
+            0x41, 0xcc, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x2, 0x2, 0x2,
+            0x2, 0x2, 0x2, 0x2, 0xc0, 0xb4, 0x5, 0x4e, 0x7e, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+            0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf0, 0x4, 0xd2, 0x4, 0xd2, 0x0, 0x0,
+            0x4c, 0x6f, 0x72, 0x65, 0x6d, 0x20, 0x69, 0x70, 0x73, 0x75, 0x6d, 0x20, 0x64, 0x6f,
+            0x6c, 0x6f, 0x72, 0x20, 0x73, 0x69, 0x74, 0x20, 0x61, 0x6d, 0x65, 0x74, 0x2c, 0x20,
+            0x63, 0x6f, 0x6e, 0x73, 0x65, 0x63, 0x74, 0x65, 0x74, 0x75, 0x72, 0x20, 0x61, 0x64,
+            0x69, 0x70, 0x69, 0x73, 0x63, 0x69, 0x6e, 0x67, 0x20, 0x65, 0x6c, 0x69, 0x74, 0x2e,
+            0x20, 0x49, 0x6e, 0x20, 0x61, 0x74, 0x20, 0x72, 0x68, 0x6f, 0x6e, 0x63, 0x75, 0x73,
+            0x20, 0x74,
+        ],
+    );
+
+    assert_eq!(
+        device.queue.pop_front().unwrap(),
+        &[
+            0x41, 0xcc, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x2, 0x2, 0x2,
+            0x2, 0x2, 0x2, 0x2, 0xe0, 0xb4, 0x5, 0x4e, 0xf, 0x6f, 0x72, 0x74, 0x6f, 0x72, 0x2e,
+            0x20, 0x43, 0x72, 0x61, 0x73, 0x20, 0x62, 0x6c, 0x61, 0x6e, 0x64, 0x69, 0x74, 0x20,
+            0x74, 0x65, 0x6c, 0x6c, 0x75, 0x73, 0x20, 0x64, 0x69, 0x61, 0x6d, 0x2c, 0x20, 0x76,
+            0x61, 0x72, 0x69, 0x75, 0x73, 0x20, 0x76, 0x65, 0x73, 0x74, 0x69, 0x62, 0x75, 0x6c,
+            0x75, 0x6d, 0x20, 0x6e, 0x69, 0x62, 0x68, 0x20, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x64,
+            0x6f, 0x20, 0x6e, 0x65, 0x63, 0x2e,
+        ]
+    );
+}