rust-ipfs 0.16.0

IPFS node implementation
Documentation 
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use ipld_core::cid::Cid;
use multihash_codetable::{Code, MultihashDigest};
use rust_ipfs::Block;
use std::time::Duration;

mod common;
use common::{Topology, spawn_nodes};
use rust_ipfs::block::BlockCodec;

fn create_block() -> Block {
    let data = b"hello block\n".to_vec();
    let cid = Cid::new_v1(BlockCodec::Raw.into(), Code::Sha2_256.digest(&data));

    Block::new_unchecked(cid, data)
}

// verify that a put block can be received via get_block and the data matches
#[tokio::test]
async fn two_node_put_get() {
    let nodes = spawn_nodes::<2>(Topology::Line).await;
    let block = create_block();

    nodes[0].put_block(&block).await.unwrap();
    let found_block = nodes[1]
        .get_block(block.cid())
        .timeout(Duration::from_secs(10))
        .await
        .expect("get_block did not complete in time");

    assert_eq!(block.data(), found_block.data());
}

// check that a long line of nodes still works with get_block
#[tokio::test]
async fn long_get_block() {
    const N: usize = 10;
    let nodes = spawn_nodes::<N>(Topology::Line).await;
    let block = create_block();

    // the first node should get the block from the last one...
    nodes[N - 1].put_block(&block).await.unwrap();
    nodes[0].get_block(block.cid()).await.unwrap();

    // ...and the last one from the first one
    nodes[0].put_block(&block).await.unwrap();
    nodes[N - 1].get_block(block.cid()).await.unwrap();
}