244 lines
7.7 KiB
Rust
244 lines
7.7 KiB
Rust
// Copyright 2015-2020 Parity Technologies (UK) Ltd.
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// This file is part of OpenEthereum.
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// OpenEthereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// OpenEthereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
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//! State snapshotting tests.
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use hash::{keccak, KECCAK_NULL_RLP};
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use std::sync::{atomic::AtomicBool, Arc};
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use super::helpers::StateProducer;
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use snapshot::{
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account, chunk_state,
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io::{PackedReader, PackedWriter, SnapshotReader, SnapshotWriter},
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Error as SnapshotError, Progress, StateRebuilder, SNAPSHOT_SUBPARTS,
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};
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use types::basic_account::BasicAccount;
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use error::{Error, ErrorKind};
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use ethereum_types::H256;
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use journaldb::{self, Algorithm};
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use kvdb_rocksdb::{Database, DatabaseConfig};
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use parking_lot::Mutex;
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use rand::{SeedableRng, XorShiftRng};
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use tempdir::TempDir;
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#[test]
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fn snap_and_restore() {
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use hash_db::HashDB;
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let mut producer = StateProducer::new();
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let mut rng = XorShiftRng::from_seed([1, 2, 3, 4]);
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let mut old_db = journaldb::new_memory_db();
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let db_cfg = DatabaseConfig::with_columns(::db::NUM_COLUMNS);
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for _ in 0..150 {
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producer.tick(&mut rng, &mut old_db);
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}
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let tempdir = TempDir::new("").unwrap();
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let snap_file = tempdir.path().join("SNAP");
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let state_root = producer.state_root();
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let writer = Mutex::new(PackedWriter::new(&snap_file).unwrap());
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let mut state_hashes = Vec::new();
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for part in 0..SNAPSHOT_SUBPARTS {
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let mut hashes = chunk_state(
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&old_db,
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&state_root,
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&writer,
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&Progress::default(),
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Some(part),
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0,
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)
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.unwrap();
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state_hashes.append(&mut hashes);
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}
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writer
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.into_inner()
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.finish(::snapshot::ManifestData {
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version: 2,
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state_hashes: state_hashes,
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block_hashes: Vec::new(),
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state_root: state_root,
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block_number: 1000,
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block_hash: H256::default(),
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})
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.unwrap();
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let db_path = tempdir.path().join("db");
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let db = {
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let new_db = Database::open(&db_cfg, &db_path.to_string_lossy()).unwrap();
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let new_db_with_metrics: Arc<dyn ethcore_db::KeyValueDB> =
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Arc::new(ethcore_db::DatabaseWithMetrics::new(new_db));
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let mut rebuilder =
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StateRebuilder::new(new_db_with_metrics.clone(), Algorithm::OverlayRecent);
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let reader = PackedReader::new(&snap_file).unwrap().unwrap();
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let flag = AtomicBool::new(true);
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for chunk_hash in &reader.manifest().state_hashes {
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let raw = reader.chunk(*chunk_hash).unwrap();
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let chunk = ::snappy::decompress(&raw).unwrap();
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rebuilder.feed(&chunk, &flag).unwrap();
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}
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assert_eq!(rebuilder.state_root(), state_root);
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rebuilder.finalize(1000, H256::default()).unwrap();
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new_db_with_metrics
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};
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let new_db = journaldb::new(db, Algorithm::OverlayRecent, ::db::COL_STATE);
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assert_eq!(new_db.earliest_era(), Some(1000));
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let keys = old_db.keys();
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for key in keys.keys() {
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assert_eq!(
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old_db.get(&key).unwrap(),
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new_db.as_hash_db().get(&key).unwrap()
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);
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}
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}
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#[test]
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fn get_code_from_prev_chunk() {
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use ethereum_types::{H256, U256};
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use hash_db::HashDB;
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use rlp::RlpStream;
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use std::collections::HashSet;
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use account_db::{AccountDB, AccountDBMut};
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let code = b"this is definitely code";
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let mut used_code = HashSet::new();
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let mut acc_stream = RlpStream::new_list(4);
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acc_stream
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.append(&U256::default())
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.append(&U256::default())
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.append(&KECCAK_NULL_RLP)
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.append(&keccak(code));
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let (h1, h2) = (H256::random(), H256::random());
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// two accounts with the same code, one per chunk.
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// first one will have code inlined,
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// second will just have its hash.
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let thin_rlp = acc_stream.out();
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let acc: BasicAccount = ::rlp::decode(&thin_rlp).expect("error decoding basic account");
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let mut make_chunk = |acc, hash| {
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let mut db = journaldb::new_memory_db();
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AccountDBMut::from_hash(&mut db, hash).insert(&code[..]);
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let p = Progress::default();
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let fat_rlp = account::to_fat_rlps(
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&hash,
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&acc,
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&AccountDB::from_hash(&db, hash),
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&mut used_code,
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usize::max_value(),
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usize::max_value(),
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&p,
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)
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.unwrap();
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let mut stream = RlpStream::new_list(1);
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stream.append_raw(&fat_rlp[0], 1);
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stream.out()
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};
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let chunk1 = make_chunk(acc.clone(), h1);
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let chunk2 = make_chunk(acc, h2);
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let tempdir = TempDir::new("").unwrap();
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let db_cfg = DatabaseConfig::with_columns(::db::NUM_COLUMNS);
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let new_db = Database::open(&db_cfg, tempdir.path().to_str().unwrap()).unwrap();
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let new_db_with_metrics = Arc::new(db::DatabaseWithMetrics::new(new_db));
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{
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let mut rebuilder =
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StateRebuilder::new(new_db_with_metrics.clone(), Algorithm::OverlayRecent);
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let flag = AtomicBool::new(true);
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rebuilder.feed(&chunk1, &flag).unwrap();
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rebuilder.feed(&chunk2, &flag).unwrap();
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rebuilder.finalize(1000, H256::random()).unwrap();
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}
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let state_db = journaldb::new(
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new_db_with_metrics,
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Algorithm::OverlayRecent,
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::db::COL_STATE,
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);
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assert_eq!(state_db.earliest_era(), Some(1000));
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}
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#[test]
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fn checks_flag() {
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let mut producer = StateProducer::new();
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let mut rng = XorShiftRng::from_seed([5, 6, 7, 8]);
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let mut old_db = journaldb::new_memory_db();
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let db_cfg = DatabaseConfig::with_columns(::db::NUM_COLUMNS);
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for _ in 0..10 {
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producer.tick(&mut rng, &mut old_db);
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}
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let tempdir = TempDir::new("").unwrap();
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let snap_file = tempdir.path().join("SNAP");
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let state_root = producer.state_root();
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let writer = Mutex::new(PackedWriter::new(&snap_file).unwrap());
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let state_hashes =
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chunk_state(&old_db, &state_root, &writer, &Progress::default(), None, 0).unwrap();
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writer
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.into_inner()
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.finish(::snapshot::ManifestData {
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version: 2,
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state_hashes,
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block_hashes: Vec::new(),
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state_root,
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block_number: 0,
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block_hash: H256::default(),
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})
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.unwrap();
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let tempdir = TempDir::new("").unwrap();
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let db_path = tempdir.path().join("db");
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{
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let new_db = Database::open(&db_cfg, &db_path.to_string_lossy()).unwrap();
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let new_db_with_metrics = Arc::new(db::DatabaseWithMetrics::new(new_db));
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let mut rebuilder =
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StateRebuilder::new(new_db_with_metrics.clone(), Algorithm::OverlayRecent);
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let reader = PackedReader::new(&snap_file).unwrap().unwrap();
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let flag = AtomicBool::new(false);
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for chunk_hash in &reader.manifest().state_hashes {
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let raw = reader.chunk(*chunk_hash).unwrap();
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let chunk = ::snappy::decompress(&raw).unwrap();
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match rebuilder.feed(&chunk, &flag) {
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Err(Error(ErrorKind::Snapshot(SnapshotError::RestorationAborted), _)) => {}
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_ => panic!("unexpected result when feeding with flag off"),
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}
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}
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}
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}
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