openethereum/sync/src/tests/chain.rs
2017-07-29 22:49:10 +02:00

271 lines
8.5 KiB
Rust

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use std::sync::Arc;
use ethcore::client::{TestBlockChainClient, BlockChainClient, BlockId, EachBlockWith};
use chain::{SyncState};
use super::helpers::*;
use SyncConfig;
#[test]
fn two_peers() {
::env_logger::init().ok();
let mut net = TestNet::new(3);
net.peer(1).chain.add_blocks(1000, EachBlockWith::Uncle);
net.peer(2).chain.add_blocks(1000, EachBlockWith::Uncle);
net.sync();
assert!(net.peer(0).chain.block(BlockId::Number(1000)).is_some());
assert_eq!(*net.peer(0).chain.blocks.read(), *net.peer(1).chain.blocks.read());
}
#[test]
fn long_chain() {
::env_logger::init().ok();
let mut net = TestNet::new(2);
net.peer(1).chain.add_blocks(50000, EachBlockWith::Nothing);
net.sync();
assert!(net.peer(0).chain.block(BlockId::Number(50000)).is_some());
assert_eq!(*net.peer(0).chain.blocks.read(), *net.peer(1).chain.blocks.read());
}
#[test]
fn status_after_sync() {
::env_logger::init().ok();
let mut net = TestNet::new(3);
net.peer(1).chain.add_blocks(1000, EachBlockWith::Uncle);
net.peer(2).chain.add_blocks(1000, EachBlockWith::Uncle);
net.sync();
let status = net.peer(0).sync.read().status();
assert_eq!(status.state, SyncState::Idle);
}
#[test]
fn takes_few_steps() {
let mut net = TestNet::new(3);
net.peer(1).chain.add_blocks(100, EachBlockWith::Uncle);
net.peer(2).chain.add_blocks(100, EachBlockWith::Uncle);
let total_steps = net.sync();
assert!(total_steps < 20);
}
#[test]
fn empty_blocks() {
::env_logger::init().ok();
let mut net = TestNet::new(3);
for n in 0..200 {
let with = if n % 2 == 0 { EachBlockWith::Nothing } else { EachBlockWith::Uncle };
net.peer(1).chain.add_blocks(5, with.clone());
net.peer(2).chain.add_blocks(5, with);
}
net.sync();
assert!(net.peer(0).chain.block(BlockId::Number(1000)).is_some());
assert_eq!(*net.peer(0).chain.blocks.read(), *net.peer(1).chain.blocks.read());
}
#[test]
fn forked() {
::env_logger::init().ok();
let mut net = TestNet::new(3);
net.peer(0).chain.add_blocks(30, EachBlockWith::Uncle);
net.peer(1).chain.add_blocks(30, EachBlockWith::Uncle);
net.peer(2).chain.add_blocks(30, EachBlockWith::Uncle);
net.peer(0).chain.add_blocks(10, EachBlockWith::Nothing); //fork
net.peer(1).chain.add_blocks(20, EachBlockWith::Uncle);
net.peer(2).chain.add_blocks(20, EachBlockWith::Uncle);
net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle); //fork between 1 and 2
net.peer(2).chain.add_blocks(1, EachBlockWith::Nothing);
// peer 1 has the best chain of 601 blocks
let peer1_chain = net.peer(1).chain.numbers.read().clone();
net.sync();
assert_eq!(*net.peer(0).chain.difficulty.read(), *net.peer(1).chain.difficulty.read());
assert_eq!(&*net.peer(0).chain.numbers.read(), &peer1_chain);
assert_eq!(&*net.peer(1).chain.numbers.read(), &peer1_chain);
assert_eq!(&*net.peer(2).chain.numbers.read(), &peer1_chain);
}
#[test]
fn forked_with_misbehaving_peer() {
::env_logger::init().ok();
let mut net = TestNet::new(3);
let mut alt_spec = ::ethcore::spec::Spec::new_test();
alt_spec.extra_data = b"fork".to_vec();
// peer 0 is on a totally different chain with higher total difficulty
net.peer_mut(0).chain = Arc::new(TestBlockChainClient::new_with_spec(alt_spec));
net.peer(0).chain.add_blocks(50, EachBlockWith::Nothing);
net.peer(1).chain.add_blocks(10, EachBlockWith::Nothing);
net.peer(2).chain.add_blocks(10, EachBlockWith::Nothing);
net.peer(1).chain.add_blocks(10, EachBlockWith::Nothing);
net.peer(2).chain.add_blocks(20, EachBlockWith::Uncle);
// peer 1 should sync to peer 2, others should not change
let peer0_chain = net.peer(0).chain.numbers.read().clone();
let peer2_chain = net.peer(2).chain.numbers.read().clone();
net.sync();
assert_eq!(&*net.peer(0).chain.numbers.read(), &peer0_chain);
assert_eq!(&*net.peer(1).chain.numbers.read(), &peer2_chain);
assert_eq!(&*net.peer(2).chain.numbers.read(), &peer2_chain);
}
#[test]
fn net_hard_fork() {
::env_logger::init().ok();
let ref_client = TestBlockChainClient::new();
ref_client.add_blocks(50, EachBlockWith::Uncle);
{
let mut net = TestNet::new_with_fork(2, Some((50, ref_client.block_hash(BlockId::Number(50)).unwrap())));
net.peer(0).chain.add_blocks(100, EachBlockWith::Uncle);
net.sync();
assert_eq!(net.peer(1).chain.chain_info().best_block_number, 100);
}
{
let mut net = TestNet::new_with_fork(2, Some((50, ref_client.block_hash(BlockId::Number(50)).unwrap())));
net.peer(0).chain.add_blocks(100, EachBlockWith::Nothing);
net.sync();
assert_eq!(net.peer(1).chain.chain_info().best_block_number, 0);
}
}
#[test]
fn restart() {
::env_logger::init().ok();
let mut net = TestNet::new(3);
net.peer(1).chain.add_blocks(1000, EachBlockWith::Uncle);
net.peer(2).chain.add_blocks(1000, EachBlockWith::Uncle);
net.sync();
// make sure that sync has actually happened
assert!(net.peer(0).chain.chain_info().best_block_number > 100);
net.restart_peer(0);
let status = net.peer(0).sync.read().status();
assert_eq!(status.state, SyncState::Idle);
}
#[test]
fn status_empty() {
let net = TestNet::new(2);
assert_eq!(net.peer(0).sync.read().status().state, SyncState::Idle);
let mut config = SyncConfig::default();
config.warp_sync = true;
let net = TestNet::new_with_config(2, config);
assert_eq!(net.peer(0).sync.read().status().state, SyncState::WaitingPeers);
}
#[test]
fn status_packet() {
let mut net = TestNet::new(2);
net.peer(0).chain.add_blocks(100, EachBlockWith::Uncle);
net.peer(1).chain.add_blocks(1, EachBlockWith::Uncle);
net.start();
net.sync_step_peer(0);
assert_eq!(1, net.peer(0).queue.read().len());
assert_eq!(0x00, net.peer(0).queue.read()[0].packet_id);
}
#[test]
fn propagate_hashes() {
let mut net = TestNet::new(6);
net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle);
net.sync();
net.peer(0).chain.add_blocks(10, EachBlockWith::Uncle);
net.sync();
net.trigger_chain_new_blocks(0); //first event just sets the marker
net.trigger_chain_new_blocks(0);
// 5 peers with NewHahses, 4 with blocks
assert_eq!(9, net.peer(0).queue.read().len());
let mut hashes = 0;
let mut blocks = 0;
for i in 0..net.peer(0).queue.read().len() {
if net.peer(0).queue.read()[i].packet_id == 0x1 {
hashes += 1;
}
if net.peer(0).queue.read()[i].packet_id == 0x7 {
blocks += 1;
}
}
assert_eq!(blocks, 4);
assert_eq!(hashes, 5);
}
#[test]
fn propagate_blocks() {
let mut net = TestNet::new(20);
net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle);
net.sync();
net.peer(0).chain.add_blocks(10, EachBlockWith::Uncle);
net.trigger_chain_new_blocks(0); //first event just sets the marker
net.trigger_chain_new_blocks(0);
assert!(!net.peer(0).queue.read().is_empty());
// NEW_BLOCK_PACKET
let blocks = net.peer(0).queue.read().iter().filter(|p| p.packet_id == 0x7).count();
assert!(blocks > 0);
}
#[test]
fn restart_on_malformed_block() {
let mut net = TestNet::new(2);
net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle);
net.peer(1).chain.corrupt_block(6);
net.sync_steps(20);
assert_eq!(net.peer(0).chain.chain_info().best_block_number, 5);
}
#[test]
fn restart_on_broken_chain() {
let mut net = TestNet::new(2);
net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle);
net.peer(1).chain.corrupt_block_parent(6);
net.sync_steps(20);
assert_eq!(net.peer(0).chain.chain_info().best_block_number, 5);
}
#[test]
fn high_td_attach() {
let mut net = TestNet::new(2);
net.peer(1).chain.add_blocks(10, EachBlockWith::Uncle);
net.peer(1).chain.corrupt_block_parent(6);
net.sync_steps(20);
assert_eq!(net.peer(0).chain.chain_info().best_block_number, 5);
}
#[test]
fn disconnect_on_unrelated_chain() {
::env_logger::init().ok();
let mut net = TestNet::new(2);
net.peer(0).chain.set_history(Some(20));
net.peer(1).chain.set_history(Some(20));
net.restart_peer(0);
net.restart_peer(1);
net.peer(0).chain.add_blocks(500, EachBlockWith::Uncle);
net.peer(1).chain.add_blocks(300, EachBlockWith::Nothing);
net.sync();
assert_eq!(net.disconnect_events, vec![(0, 0)]);
}