quickie 0.7.0

A simple, low-level, and customizable implementation of a QUIC P2P node.
Documentation 
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//! These tests concentrate on unidirectional streams.

mod common;

use std::time::Duration;

use deadline::deadline;
use quickie::*;
use tokio::time::sleep;

const NUM_MESSAGES: u8 = 3;

#[tokio::test]
async fn streams_uni() {
    // prepare the configs
    let (client_cfg, server_cfg) = common::client_and_server_config();

    // a node in client-only mode
    let node = common::TestNode(Node::new(Config::new(Some(client_cfg.clone()), None)));
    node.start("127.0.0.1:0".parse().unwrap()).await.unwrap();

    // a raw endpoint
    let raw_endpoint = common::raw_endpoint(client_cfg, server_cfg);
    let raw_endpoint_addr = raw_endpoint.local_addr().unwrap();

    // prepare to accept a connection
    let conn_handle = tokio::spawn(async move {
        if let Some(conn) = raw_endpoint.accept().await {
            conn.accept().unwrap().await.unwrap()
        } else {
            panic!("failed to accept a connection");
        }
    });

    // initiate a connection
    let conn_id = node
        .connect(raw_endpoint_addr, common::SERVER_NAME)
        .await
        .unwrap();

    // obtain the ready connection
    let connection = conn_handle.await.unwrap();

    // send messages to a uni stream
    {
        // open a uni stream
        let stream_id = node.open_uni(conn_id).await.unwrap();

        // send a few messages
        for i in 0..NUM_MESSAGES {
            node.send_msg(conn_id, stream_id, [i, i].to_vec().into())
                .unwrap();
        }

        let node_clone = node.clone();
        deadline!(Duration::from_secs(1), move || {
            let stats = node_clone.get_stream_stats(conn_id, stream_id).unwrap();
            stats.msgs_sent == NUM_MESSAGES as u64 && stats.bytes_sent == NUM_MESSAGES as u64 * 2
        });

        // get the corresponding uni stream on the raw endpoint side
        let mut raw_recv_stream = connection.accept_uni().await.unwrap();

        // check if the raw endpoint got all of the messages
        let mut recv_buf = [255u8, 255];
        for i in 0..NUM_MESSAGES {
            raw_recv_stream.read_exact(&mut recv_buf).await.unwrap();
            assert_eq!(recv_buf, [i, i]);
        }

        node.close_stream(conn_id, stream_id);
    }

    // receive messages from a uni stream
    {
        // start a uni stream
        let mut raw_send_stream = connection.open_uni().await.unwrap();

        // send a few messages
        for i in 0..NUM_MESSAGES {
            raw_send_stream.write_all(&[i, i]).await.unwrap();
            // a small delay so that the messages aren't stuck together
            sleep(Duration::from_millis(1)).await;
        }

        let mut stream_ids = node.get_stream_ids(conn_id).unwrap();
        assert_eq!(stream_ids.len(), 1);
        let stream_id = stream_ids.pop().unwrap();

        let node_clone = node.clone();
        deadline!(Duration::from_secs(1), move || {
            let stats = node_clone.get_stream_stats(conn_id, stream_id).unwrap();
            stats.msgs_recv == NUM_MESSAGES as u64 && stats.bytes_recv == NUM_MESSAGES as u64 * 2
        });
    }
}

#[tokio::test]
async fn streams_bi() {
    // prepare the configs
    let (client_cfg, server_cfg) = common::client_and_server_config();

    // a node in client-only mode
    let node = common::TestNode(Node::new(Config::new(Some(client_cfg.clone()), None)));
    node.start("127.0.0.1:0".parse().unwrap()).await.unwrap();

    // a raw endpoint
    let raw_endpoint = common::raw_endpoint(client_cfg, server_cfg);
    let raw_endpoint_addr = raw_endpoint.local_addr().unwrap();

    // prepare to accept a connection
    let conn_handle = tokio::spawn(async move {
        if let Some(conn) = raw_endpoint.accept().await {
            conn.accept().unwrap().await.unwrap()
        } else {
            panic!("failed to accept a connection");
        }
    });

    // initiate a connection
    let conn_id = node
        .connect(raw_endpoint_addr, common::SERVER_NAME)
        .await
        .unwrap();

    // obtain the ready connection
    let connection = conn_handle.await.unwrap();

    // send and receive messages in an outbound bi stream
    {
        // open a bi stream
        let stream_id = node.open_bi(conn_id).await.unwrap();

        // send a few messages
        for i in 0..NUM_MESSAGES {
            node.send_msg(conn_id, stream_id, [i, i].to_vec().into())
                .unwrap();
        }

        let node_clone = node.clone();
        deadline!(Duration::from_secs(1), move || {
            let stats = node_clone.get_stream_stats(conn_id, stream_id).unwrap();
            stats.msgs_sent == NUM_MESSAGES as u64 && stats.bytes_sent == NUM_MESSAGES as u64 * 2
        });

        // get the corresponding bi stream on the raw endpoint side
        let (mut raw_send_stream, mut raw_recv_stream) = connection.accept_bi().await.unwrap();

        // check if the raw endpoint got all of the messages
        let mut recv_buf = [255u8, 255];
        for i in 0..NUM_MESSAGES {
            raw_recv_stream.read_exact(&mut recv_buf).await.unwrap();
            assert_eq!(recv_buf, [i, i]);
        }

        // send a few messages
        for i in 0..NUM_MESSAGES {
            raw_send_stream.write_all(&[i, i]).await.unwrap();
            // a small delay so that the messages aren't stuck together
            sleep(Duration::from_millis(1)).await;
        }

        let node_clone = node.clone();
        deadline!(Duration::from_secs(1), move || {
            let stats = node_clone.get_stream_stats(conn_id, stream_id).unwrap();
            stats.msgs_recv == NUM_MESSAGES as u64 && stats.bytes_recv == NUM_MESSAGES as u64 * 2
        });

        node.close_stream(conn_id, stream_id);
    }

    // receive and send messages in an inbound bi stream
    {
        // start a bi stream
        let (mut raw_send_stream, mut raw_recv_stream) = connection.open_bi().await.unwrap();

        // send a few messages
        for i in 0..NUM_MESSAGES {
            raw_send_stream.write_all(&[i, i]).await.unwrap();
            // a small delay so that the messages aren't stuck together
            sleep(Duration::from_millis(1)).await;
        }

        let mut stream_ids = node.get_stream_ids(conn_id).unwrap();
        assert_eq!(stream_ids.len(), 1);
        let stream_id = stream_ids.pop().unwrap();

        let node_clone = node.clone();
        deadline!(Duration::from_secs(1), move || {
            let stats = node_clone.get_stream_stats(conn_id, stream_id).unwrap();
            stats.msgs_recv == NUM_MESSAGES as u64 && stats.bytes_recv == NUM_MESSAGES as u64 * 2
        });

        // send a few messages
        for i in 0..NUM_MESSAGES {
            node.send_msg(conn_id, stream_id, [i, i].to_vec().into())
                .unwrap();
        }

        let node_clone = node.clone();
        deadline!(Duration::from_secs(1), move || {
            let stats = node_clone.get_stream_stats(conn_id, stream_id).unwrap();
            stats.msgs_recv == NUM_MESSAGES as u64 && stats.bytes_recv == NUM_MESSAGES as u64 * 2
        });

        // check if the raw endpoint got all of the messages
        let mut recv_buf = [255u8, 255];
        for i in 0..NUM_MESSAGES {
            raw_recv_stream.read_exact(&mut recv_buf).await.unwrap();
            assert_eq!(recv_buf, [i, i]);
        }
    }
}

#[tokio::test]
async fn datagrams() {
    // prepare the configs
    let (client_cfg, server_cfg) = common::client_and_server_config();

    // a node in client-only mode
    let node = common::TestNode(Node::new(Config::new(Some(client_cfg.clone()), None)));
    node.start("127.0.0.1:0".parse().unwrap()).await.unwrap();

    // a raw endpoint
    let raw_endpoint = common::raw_endpoint(client_cfg, server_cfg);
    let raw_endpoint_addr = raw_endpoint.local_addr().unwrap();

    // prepare to accept a connection
    let conn_handle = tokio::spawn(async move {
        if let Some(conn) = raw_endpoint.accept().await {
            conn.accept().unwrap().await.unwrap()
        } else {
            panic!("failed to accept a connection");
        }
    });

    // initiate a connection
    let conn_id = node
        .connect(raw_endpoint_addr, common::SERVER_NAME)
        .await
        .unwrap();

    // obtain the ready connection
    let connection = conn_handle.await.unwrap();

    // outbound
    {
        // send a few datagrams from the node
        for i in 0..NUM_MESSAGES {
            node.send_datagram(conn_id, [i, i].to_vec().into()).unwrap();
        }

        // check if the node's stats were updated
        let node_clone = node.clone();
        deadline!(Duration::from_secs(1), move || {
            let stats = node_clone.get_datagram_stats(conn_id).unwrap();
            stats.msgs_sent == NUM_MESSAGES as u64 && stats.bytes_sent == NUM_MESSAGES as u64 * 2
        });

        // check if the raw endpoint got all of the datagrams
        for i in 0..NUM_MESSAGES {
            assert_eq!(&connection.read_datagram().await.unwrap(), &[i, i][..]);
        }
    }

    // inbound
    {
        // send a few datagrams to the node
        for i in 0..NUM_MESSAGES {
            connection.send_datagram([i, i].to_vec().into()).unwrap();
        }

        // check if the node got them
        let node_clone = node.clone();
        deadline!(Duration::from_secs(1), move || {
            let stats = node_clone.get_datagram_stats(conn_id).unwrap();
            stats.msgs_recv == NUM_MESSAGES as u64 && stats.bytes_recv == NUM_MESSAGES as u64 * 2
        });
    }
}