826 lines
26 KiB
Rust
826 lines
26 KiB
Rust
#![cfg(not(debug_assertions))]
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#[macro_use]
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extern crate lazy_static;
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use beacon_chain::test_utils::{
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AttestationStrategy, BeaconChainHarness, BlockStrategy, DiskHarnessType,
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};
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use beacon_chain::AttestationProcessingOutcome;
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use rand::Rng;
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use sloggers::{null::NullLoggerBuilder, Build};
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use std::sync::Arc;
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use store::{
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iter::{BlockRootsIterator, StateRootsIterator},
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DiskStore, Store, StoreConfig,
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};
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use tempfile::{tempdir, TempDir};
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use tree_hash::TreeHash;
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use types::test_utils::{SeedableRng, XorShiftRng};
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use types::*;
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// Should ideally be divisible by 3.
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pub const LOW_VALIDATOR_COUNT: usize = 24;
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pub const HIGH_VALIDATOR_COUNT: usize = 64;
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lazy_static! {
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/// A cached set of keys.
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static ref KEYPAIRS: Vec<Keypair> = types::test_utils::generate_deterministic_keypairs(HIGH_VALIDATOR_COUNT);
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}
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type E = MinimalEthSpec;
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type TestHarness = BeaconChainHarness<DiskHarnessType<E>>;
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fn get_store(db_path: &TempDir) -> Arc<DiskStore<E>> {
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let spec = MinimalEthSpec::default_spec();
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let hot_path = db_path.path().join("hot_db");
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let cold_path = db_path.path().join("cold_db");
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let config = StoreConfig::default();
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let log = NullLoggerBuilder.build().expect("logger should build");
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Arc::new(
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DiskStore::open(&hot_path, &cold_path, config, spec, log)
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.expect("disk store should initialize"),
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)
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}
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fn get_harness(store: Arc<DiskStore<E>>, validator_count: usize) -> TestHarness {
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let harness = BeaconChainHarness::new_with_disk_store(
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MinimalEthSpec,
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store,
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KEYPAIRS[0..validator_count].to_vec(),
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);
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harness.advance_slot();
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harness
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}
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#[test]
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fn full_participation_no_skips() {
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let num_blocks_produced = E::slots_per_epoch() * 5;
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let db_path = tempdir().unwrap();
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let store = get_store(&db_path);
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let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
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harness.extend_chain(
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num_blocks_produced as usize,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::AllValidators,
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);
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check_finalization(&harness, num_blocks_produced);
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check_split_slot(&harness, store);
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check_chain_dump(&harness, num_blocks_produced + 1);
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check_iterators(&harness);
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}
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#[test]
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fn randomised_skips() {
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let num_slots = E::slots_per_epoch() * 5;
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let mut num_blocks_produced = 0;
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let db_path = tempdir().unwrap();
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let store = get_store(&db_path);
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let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
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let rng = &mut XorShiftRng::from_seed([42; 16]);
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let mut head_slot = 0;
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for slot in 1..=num_slots {
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if rng.gen_bool(0.8) {
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harness.extend_chain(
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1,
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BlockStrategy::ForkCanonicalChainAt {
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previous_slot: Slot::new(head_slot),
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first_slot: Slot::new(slot),
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},
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AttestationStrategy::AllValidators,
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);
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harness.advance_slot();
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num_blocks_produced += 1;
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head_slot = slot;
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} else {
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harness.advance_slot();
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}
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}
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let state = &harness.chain.head().expect("should get head").beacon_state;
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assert_eq!(state.slot, num_slots, "head should be at the current slot");
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check_split_slot(&harness, store);
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check_chain_dump(&harness, num_blocks_produced + 1);
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check_iterators(&harness);
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}
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#[test]
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fn long_skip() {
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let db_path = tempdir().unwrap();
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let store = get_store(&db_path);
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let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
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// Number of blocks to create in the first run, intentionally not falling on an epoch
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// boundary in order to check that the DB hot -> cold migration is capable of reaching
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// back across the skip distance, and correctly migrating those extra non-finalized states.
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let initial_blocks = E::slots_per_epoch() * 5 + E::slots_per_epoch() / 2;
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let skip_slots = E::slots_per_historical_root() as u64 * 8;
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// Create the minimum ~2.5 epochs of extra blocks required to re-finalize the chain.
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// Having this set lower ensures that we start justifying and finalizing quickly after a skip.
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let final_blocks = 2 * E::slots_per_epoch() + E::slots_per_epoch() / 2;
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harness.extend_chain(
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initial_blocks as usize,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::AllValidators,
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);
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check_finalization(&harness, initial_blocks);
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// 2. Skip slots
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for _ in 0..skip_slots {
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harness.advance_slot();
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}
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// 3. Produce more blocks, establish a new finalized epoch
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harness.extend_chain(
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final_blocks as usize,
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BlockStrategy::ForkCanonicalChainAt {
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previous_slot: Slot::new(initial_blocks),
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first_slot: Slot::new(initial_blocks + skip_slots as u64 + 1),
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},
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AttestationStrategy::AllValidators,
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);
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check_finalization(&harness, initial_blocks + skip_slots + final_blocks);
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check_split_slot(&harness, store);
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check_chain_dump(&harness, initial_blocks + final_blocks + 1);
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check_iterators(&harness);
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}
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/// Go forward to the point where the genesis randao value is no longer part of the vector.
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///
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/// This implicitly checks that:
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/// 1. The chunked vector scheme doesn't attempt to store an incorrect genesis value
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/// 2. We correctly load the genesis value for all required slots
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/// NOTE: this test takes about a minute to run
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#[test]
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fn randao_genesis_storage() {
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let validator_count = 8;
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let db_path = tempdir().unwrap();
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let store = get_store(&db_path);
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let harness = get_harness(store.clone(), validator_count);
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let num_slots = E::slots_per_epoch() * (E::epochs_per_historical_vector() - 1) as u64;
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// Check we have a non-trivial genesis value
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let genesis_value = *harness
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.chain
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.head()
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.expect("should get head")
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.beacon_state
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.get_randao_mix(Epoch::new(0))
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.expect("randao mix ok");
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assert!(!genesis_value.is_zero());
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harness.extend_chain(
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num_slots as usize - 1,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::AllValidators,
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);
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// Check that genesis value is still present
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assert!(harness
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.chain
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.head()
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.expect("should get head")
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.beacon_state
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.randao_mixes
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.iter()
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.find(|x| **x == genesis_value)
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.is_some());
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// Then upon adding one more block, it isn't
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harness.advance_slot();
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harness.extend_chain(
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1,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::AllValidators,
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);
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assert!(harness
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.chain
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.head()
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.expect("should get head")
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.beacon_state
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.randao_mixes
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.iter()
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.find(|x| **x == genesis_value)
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.is_none());
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check_finalization(&harness, num_slots);
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check_split_slot(&harness, store);
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check_chain_dump(&harness, num_slots + 1);
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check_iterators(&harness);
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}
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// Check that closing and reopening a freezer DB restores the split slot to its correct value.
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#[test]
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fn split_slot_restore() {
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let db_path = tempdir().unwrap();
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let split_slot = {
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let store = get_store(&db_path);
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let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
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let num_blocks = 4 * E::slots_per_epoch();
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harness.extend_chain(
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num_blocks as usize,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::AllValidators,
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);
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store.get_split_slot()
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};
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assert_ne!(split_slot, Slot::new(0));
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// Re-open the store
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let store = get_store(&db_path);
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assert_eq!(store.get_split_slot(), split_slot);
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}
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// Check attestation processing and `load_epoch_boundary_state` in the presence of a split DB.
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// This is a bit of a monster test in that it tests lots of different things, but until they're
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// tested elsewhere, this is as good a place as any.
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#[test]
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fn epoch_boundary_state_attestation_processing() {
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let num_blocks_produced = E::slots_per_epoch() * 5;
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let db_path = tempdir().unwrap();
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let store = get_store(&db_path);
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let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
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let late_validators = vec![0, 1];
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let timely_validators = (2..LOW_VALIDATOR_COUNT).collect::<Vec<_>>();
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let mut late_attestations = vec![];
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for _ in 0..num_blocks_produced {
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harness.extend_chain(
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1,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::SomeValidators(timely_validators.clone()),
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);
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let head = harness.chain.head().expect("head ok");
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late_attestations.extend(harness.get_free_attestations(
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&AttestationStrategy::SomeValidators(late_validators.clone()),
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&head.beacon_state,
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head.beacon_block_root,
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head.beacon_block.slot(),
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));
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harness.advance_slot();
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}
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check_finalization(&harness, num_blocks_produced);
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check_split_slot(&harness, store.clone());
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check_chain_dump(&harness, num_blocks_produced + 1);
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check_iterators(&harness);
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let mut checked_pre_fin = false;
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for attestation in late_attestations {
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// load_epoch_boundary_state is idempotent!
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let block_root = attestation.data.beacon_block_root;
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let block = store.get_block(&block_root).unwrap().expect("block exists");
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let epoch_boundary_state = store
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.load_epoch_boundary_state(&block.state_root())
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.expect("no error")
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.expect("epoch boundary state exists");
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let ebs_of_ebs = store
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.load_epoch_boundary_state(&epoch_boundary_state.canonical_root())
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.expect("no error")
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.expect("ebs of ebs exists");
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assert_eq!(epoch_boundary_state, ebs_of_ebs);
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// If the attestation is pre-finalization it should be rejected.
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let finalized_epoch = harness
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.chain
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.head_info()
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.expect("head ok")
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.finalized_checkpoint
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.epoch;
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let res = harness
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.chain
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.process_attestation_internal(attestation.clone());
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let current_epoch = harness.chain.epoch().expect("should get epoch");
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let attestation_epoch = attestation.data.target.epoch;
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if attestation.data.slot <= finalized_epoch.start_slot(E::slots_per_epoch())
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|| attestation_epoch + 1 < current_epoch
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{
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checked_pre_fin = true;
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assert_eq!(
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res,
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Ok(AttestationProcessingOutcome::PastEpoch {
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attestation_epoch,
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current_epoch,
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})
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);
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} else {
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assert_eq!(res, Ok(AttestationProcessingOutcome::Processed));
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}
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}
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assert!(checked_pre_fin);
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}
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#[test]
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fn delete_blocks_and_states() {
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let db_path = tempdir().unwrap();
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let store = get_store(&db_path);
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let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
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let unforked_blocks = 4 * E::slots_per_epoch();
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// Finalize an initial portion of the chain.
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harness.extend_chain(
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unforked_blocks as usize,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::AllValidators,
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);
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// Create a fork post-finalization.
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let two_thirds = (LOW_VALIDATOR_COUNT / 3) * 2;
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let honest_validators: Vec<usize> = (0..two_thirds).collect();
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let faulty_validators: Vec<usize> = (two_thirds..LOW_VALIDATOR_COUNT).collect();
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let fork_blocks = 2 * E::slots_per_epoch();
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let (honest_head, faulty_head) = harness.generate_two_forks_by_skipping_a_block(
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&honest_validators,
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&faulty_validators,
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fork_blocks as usize,
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fork_blocks as usize,
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);
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assert!(honest_head != faulty_head, "forks should be distinct");
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let head_info = harness.chain.head_info().expect("should get head");
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assert_eq!(head_info.slot, unforked_blocks + fork_blocks);
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assert_eq!(
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head_info.block_root, honest_head,
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"the honest chain should be the canonical chain",
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);
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let faulty_head_block = store
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.get_block(&faulty_head)
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.expect("no errors")
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.expect("faulty head block exists");
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let faulty_head_state = store
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.get_state(
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&faulty_head_block.state_root(),
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Some(faulty_head_block.slot()),
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)
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.expect("no db error")
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.expect("faulty head state exists");
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let states_to_delete = StateRootsIterator::new(store.clone(), &faulty_head_state)
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.take_while(|(_, slot)| *slot > unforked_blocks)
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.collect::<Vec<_>>();
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// Delete faulty fork
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// Attempting to load those states should find them unavailable
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for (state_root, slot) in &states_to_delete {
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assert_eq!(store.delete_state(state_root, *slot), Ok(()));
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assert_eq!(store.get_state(state_root, Some(*slot)), Ok(None));
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}
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// Double-deleting should also be OK (deleting non-existent things is fine)
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for (state_root, slot) in &states_to_delete {
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assert_eq!(store.delete_state(state_root, *slot), Ok(()));
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}
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// Deleting the blocks from the fork should remove them completely
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let blocks_to_delete = BlockRootsIterator::new(store.clone(), &faulty_head_state)
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// Extra +1 here accounts for the skipped slot that started this fork
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.take_while(|(_, slot)| *slot > unforked_blocks + 1)
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.collect::<Vec<_>>();
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for (block_root, _) in blocks_to_delete {
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assert_eq!(store.delete_block(&block_root), Ok(()));
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assert_eq!(store.get_block(&block_root), Ok(None));
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}
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// Deleting frozen states should do nothing
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let split_slot = store.get_split_slot();
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let finalized_states = harness
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.chain
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.rev_iter_state_roots()
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.expect("rev iter ok")
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.filter(|(_, slot)| *slot < split_slot);
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for (state_root, slot) in finalized_states {
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assert_eq!(store.delete_state(&state_root, slot), Ok(()));
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}
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// After all that, the chain dump should still be OK
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check_chain_dump(&harness, unforked_blocks + fork_blocks + 1);
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}
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// Check that we never produce invalid blocks when there is deep forking that changes the shuffling.
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// See https://github.com/sigp/lighthouse/issues/845
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fn multi_epoch_fork_valid_blocks_test(
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initial_blocks: usize,
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num_fork1_blocks: usize,
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num_fork2_blocks: usize,
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num_fork1_validators: usize,
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) -> (TempDir, TestHarness, Hash256, Hash256) {
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let db_path = tempdir().unwrap();
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let store = get_store(&db_path);
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let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
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// Create the initial portion of the chain
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if initial_blocks > 0 {
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harness.extend_chain(
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initial_blocks,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::AllValidators,
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);
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}
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assert!(num_fork1_validators <= LOW_VALIDATOR_COUNT);
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let fork1_validators: Vec<usize> = (0..num_fork1_validators).collect();
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let fork2_validators: Vec<usize> = (num_fork1_validators..LOW_VALIDATOR_COUNT).collect();
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let (head1, head2) = harness.generate_two_forks_by_skipping_a_block(
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&fork1_validators,
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&fork2_validators,
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num_fork1_blocks,
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num_fork2_blocks,
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);
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(db_path, harness, head1, head2)
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}
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|
|
// This is the minimal test of block production with different shufflings.
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|
#[test]
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|
fn block_production_different_shuffling_early() {
|
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let slots_per_epoch = E::slots_per_epoch() as usize;
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multi_epoch_fork_valid_blocks_test(
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slots_per_epoch - 2,
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slots_per_epoch + 3,
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slots_per_epoch + 3,
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LOW_VALIDATOR_COUNT / 2,
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);
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}
|
|
|
|
#[test]
|
|
fn block_production_different_shuffling_long() {
|
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let slots_per_epoch = E::slots_per_epoch() as usize;
|
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multi_epoch_fork_valid_blocks_test(
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2 * slots_per_epoch - 2,
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3 * slots_per_epoch,
|
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3 * slots_per_epoch,
|
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LOW_VALIDATOR_COUNT / 2,
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);
|
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}
|
|
|
|
// Check that the op pool safely includes multiple attestations per block when necessary.
|
|
// This checks the correctness of the shuffling compatibility memoization.
|
|
#[test]
|
|
fn multiple_attestations_per_block() {
|
|
let db_path = tempdir().unwrap();
|
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let store = get_store(&db_path);
|
|
let harness = get_harness(store, HIGH_VALIDATOR_COUNT);
|
|
let chain = &harness.chain;
|
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|
|
harness.extend_chain(
|
|
MainnetEthSpec::slots_per_epoch() as usize * 3,
|
|
BlockStrategy::OnCanonicalHead,
|
|
AttestationStrategy::AllValidators,
|
|
);
|
|
|
|
let head = chain.head().unwrap();
|
|
let committees_per_slot = head
|
|
.beacon_state
|
|
.get_committee_count_at_slot(head.beacon_state.slot)
|
|
.unwrap();
|
|
assert!(committees_per_slot > 1);
|
|
|
|
for snapshot in chain.chain_dump().unwrap() {
|
|
assert_eq!(
|
|
snapshot.beacon_block.message.body.attestations.len() as u64,
|
|
if snapshot.beacon_block.slot() <= 1 {
|
|
0
|
|
} else {
|
|
committees_per_slot
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn shuffling_compatible_linear_chain() {
|
|
let db_path = tempdir().unwrap();
|
|
let store = get_store(&db_path);
|
|
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
|
|
|
|
// Skip the block at the end of the first epoch.
|
|
let head_block_root = harness.extend_chain(
|
|
4 * E::slots_per_epoch() as usize,
|
|
BlockStrategy::OnCanonicalHead,
|
|
AttestationStrategy::AllValidators,
|
|
);
|
|
|
|
check_shuffling_compatible(
|
|
&harness,
|
|
&get_state_for_block(&harness, head_block_root),
|
|
head_block_root,
|
|
true,
|
|
true,
|
|
None,
|
|
None,
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn shuffling_compatible_missing_pivot_block() {
|
|
let db_path = tempdir().unwrap();
|
|
let store = get_store(&db_path);
|
|
let harness = get_harness(store.clone(), LOW_VALIDATOR_COUNT);
|
|
|
|
// Skip the block at the end of the first epoch.
|
|
harness.extend_chain(
|
|
E::slots_per_epoch() as usize - 2,
|
|
BlockStrategy::OnCanonicalHead,
|
|
AttestationStrategy::AllValidators,
|
|
);
|
|
harness.advance_slot();
|
|
harness.advance_slot();
|
|
let head_block_root = harness.extend_chain(
|
|
2 * E::slots_per_epoch() as usize,
|
|
BlockStrategy::OnCanonicalHead,
|
|
AttestationStrategy::AllValidators,
|
|
);
|
|
|
|
check_shuffling_compatible(
|
|
&harness,
|
|
&get_state_for_block(&harness, head_block_root),
|
|
head_block_root,
|
|
true,
|
|
true,
|
|
Some(E::slots_per_epoch() - 2),
|
|
Some(E::slots_per_epoch() - 2),
|
|
);
|
|
}
|
|
|
|
#[test]
|
|
fn shuffling_compatible_simple_fork() {
|
|
let slots_per_epoch = E::slots_per_epoch() as usize;
|
|
let (db_path, harness, head1, head2) = multi_epoch_fork_valid_blocks_test(
|
|
2 * slots_per_epoch,
|
|
3 * slots_per_epoch,
|
|
3 * slots_per_epoch,
|
|
LOW_VALIDATOR_COUNT / 2,
|
|
);
|
|
|
|
let head1_state = get_state_for_block(&harness, head1);
|
|
let head2_state = get_state_for_block(&harness, head2);
|
|
|
|
check_shuffling_compatible(&harness, &head1_state, head1, true, true, None, None);
|
|
check_shuffling_compatible(&harness, &head1_state, head2, false, false, None, None);
|
|
check_shuffling_compatible(&harness, &head2_state, head1, false, false, None, None);
|
|
check_shuffling_compatible(&harness, &head2_state, head2, true, true, None, None);
|
|
|
|
drop(db_path);
|
|
}
|
|
|
|
#[test]
|
|
fn shuffling_compatible_short_fork() {
|
|
let slots_per_epoch = E::slots_per_epoch() as usize;
|
|
let (db_path, harness, head1, head2) = multi_epoch_fork_valid_blocks_test(
|
|
2 * slots_per_epoch - 2,
|
|
slots_per_epoch + 2,
|
|
slots_per_epoch + 2,
|
|
LOW_VALIDATOR_COUNT / 2,
|
|
);
|
|
|
|
let head1_state = get_state_for_block(&harness, head1);
|
|
let head2_state = get_state_for_block(&harness, head2);
|
|
|
|
check_shuffling_compatible(&harness, &head1_state, head1, true, true, None, None);
|
|
check_shuffling_compatible(&harness, &head1_state, head2, false, true, None, None);
|
|
// NOTE: don't check this case, as block 14 from the first chain appears valid on the second
|
|
// chain due to it matching the second chain's block 15.
|
|
// check_shuffling_compatible(&harness, &head2_state, head1, false, true, None, None);
|
|
check_shuffling_compatible(
|
|
&harness,
|
|
&head2_state,
|
|
head2,
|
|
true,
|
|
true,
|
|
// Required because of the skipped slot.
|
|
Some(2 * E::slots_per_epoch() - 2),
|
|
None,
|
|
);
|
|
|
|
drop(db_path);
|
|
}
|
|
|
|
fn get_state_for_block(harness: &TestHarness, block_root: Hash256) -> BeaconState<E> {
|
|
let head_block = harness.chain.get_block(&block_root).unwrap().unwrap();
|
|
harness
|
|
.chain
|
|
.get_state(&head_block.state_root(), Some(head_block.slot()))
|
|
.unwrap()
|
|
.unwrap()
|
|
}
|
|
|
|
/// Check the invariants that apply to `shuffling_is_compatible`.
|
|
fn check_shuffling_compatible(
|
|
harness: &TestHarness,
|
|
head_state: &BeaconState<E>,
|
|
head_block_root: Hash256,
|
|
current_epoch_valid: bool,
|
|
previous_epoch_valid: bool,
|
|
current_epoch_cutoff_slot: Option<u64>,
|
|
previous_epoch_cutoff_slot: Option<u64>,
|
|
) {
|
|
let shuffling_lookahead = harness.chain.spec.min_seed_lookahead.as_u64() + 1;
|
|
let current_pivot_slot =
|
|
(head_state.current_epoch() - shuffling_lookahead).end_slot(E::slots_per_epoch());
|
|
let previous_pivot_slot =
|
|
(head_state.previous_epoch() - shuffling_lookahead).end_slot(E::slots_per_epoch());
|
|
|
|
for (block_root, slot) in harness
|
|
.chain
|
|
.rev_iter_block_roots_from(head_block_root)
|
|
.unwrap()
|
|
{
|
|
// Shuffling is compatible targeting the current epoch,
|
|
// iff slot is greater than or equal to the current epoch pivot block
|
|
assert_eq!(
|
|
harness.chain.shuffling_is_compatible(
|
|
&block_root,
|
|
head_state.current_epoch(),
|
|
&head_state
|
|
),
|
|
current_epoch_valid
|
|
&& slot >= current_epoch_cutoff_slot.unwrap_or(current_pivot_slot.as_u64())
|
|
);
|
|
// Similarly for the previous epoch
|
|
assert_eq!(
|
|
harness.chain.shuffling_is_compatible(
|
|
&block_root,
|
|
head_state.previous_epoch(),
|
|
&head_state
|
|
),
|
|
previous_epoch_valid
|
|
&& slot >= previous_epoch_cutoff_slot.unwrap_or(previous_pivot_slot.as_u64())
|
|
);
|
|
// Targeting the next epoch should always return false
|
|
assert_eq!(
|
|
harness.chain.shuffling_is_compatible(
|
|
&block_root,
|
|
head_state.current_epoch() + 1,
|
|
&head_state
|
|
),
|
|
false
|
|
);
|
|
// Targeting two epochs before the current epoch should also always return false
|
|
if head_state.current_epoch() >= 2 {
|
|
assert_eq!(
|
|
harness.chain.shuffling_is_compatible(
|
|
&block_root,
|
|
head_state.current_epoch() - 2,
|
|
&head_state
|
|
),
|
|
false
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Check that the head state's slot matches `expected_slot`.
|
|
fn check_slot(harness: &TestHarness, expected_slot: u64) {
|
|
let state = &harness.chain.head().expect("should get head").beacon_state;
|
|
|
|
assert_eq!(
|
|
state.slot, expected_slot,
|
|
"head should be at the current slot"
|
|
);
|
|
}
|
|
|
|
/// Check that the chain has finalized under best-case assumptions, and check the head slot.
|
|
fn check_finalization(harness: &TestHarness, expected_slot: u64) {
|
|
let state = &harness.chain.head().expect("should get head").beacon_state;
|
|
|
|
check_slot(harness, expected_slot);
|
|
|
|
assert_eq!(
|
|
state.current_justified_checkpoint.epoch,
|
|
state.current_epoch() - 1,
|
|
"the head should be justified one behind the current epoch"
|
|
);
|
|
assert_eq!(
|
|
state.finalized_checkpoint.epoch,
|
|
state.current_epoch() - 2,
|
|
"the head should be finalized two behind the current epoch"
|
|
);
|
|
}
|
|
|
|
/// Check that the DiskStore's split_slot is equal to the start slot of the last finalized epoch.
|
|
fn check_split_slot(harness: &TestHarness, store: Arc<DiskStore<E>>) {
|
|
let split_slot = store.get_split_slot();
|
|
assert_eq!(
|
|
harness
|
|
.chain
|
|
.head()
|
|
.expect("should get head")
|
|
.beacon_state
|
|
.finalized_checkpoint
|
|
.epoch
|
|
.start_slot(E::slots_per_epoch()),
|
|
split_slot
|
|
);
|
|
assert_ne!(split_slot, 0);
|
|
}
|
|
|
|
/// Check that all the states in a chain dump have the correct tree hash.
|
|
fn check_chain_dump(harness: &TestHarness, expected_len: u64) {
|
|
let chain_dump = harness.chain.chain_dump().unwrap();
|
|
|
|
assert_eq!(chain_dump.len() as u64, expected_len);
|
|
|
|
for checkpoint in &chain_dump {
|
|
// Check that the tree hash of the stored state is as expected
|
|
assert_eq!(
|
|
checkpoint.beacon_state_root,
|
|
checkpoint.beacon_state.tree_hash_root(),
|
|
"tree hash of stored state is incorrect"
|
|
);
|
|
|
|
// Check that looking up the state root with no slot hint succeeds.
|
|
// This tests the state root -> slot mapping.
|
|
assert_eq!(
|
|
harness
|
|
.chain
|
|
.store
|
|
.get_state(&checkpoint.beacon_state_root, None)
|
|
.expect("no error")
|
|
.expect("state exists")
|
|
.slot,
|
|
checkpoint.beacon_state.slot
|
|
);
|
|
}
|
|
|
|
// Check the forwards block roots iterator against the chain dump
|
|
let chain_dump_block_roots = chain_dump
|
|
.iter()
|
|
.map(|checkpoint| (checkpoint.beacon_block_root, checkpoint.beacon_block.slot()))
|
|
.collect::<Vec<_>>();
|
|
|
|
let head = harness.chain.head().expect("should get head");
|
|
let mut forward_block_roots = Store::forwards_block_roots_iterator(
|
|
harness.chain.store.clone(),
|
|
Slot::new(0),
|
|
head.beacon_state,
|
|
head.beacon_block_root,
|
|
&harness.spec,
|
|
)
|
|
.collect::<Vec<_>>();
|
|
|
|
// Drop the block roots for skipped slots.
|
|
forward_block_roots.dedup_by_key(|(block_root, _)| *block_root);
|
|
|
|
for i in 0..std::cmp::max(chain_dump_block_roots.len(), forward_block_roots.len()) {
|
|
assert_eq!(
|
|
chain_dump_block_roots[i],
|
|
forward_block_roots[i],
|
|
"split slot is {}",
|
|
harness.chain.store.get_split_slot()
|
|
);
|
|
}
|
|
}
|
|
|
|
/// Check that state and block root iterators can reach genesis
|
|
fn check_iterators(harness: &TestHarness) {
|
|
assert_eq!(
|
|
harness
|
|
.chain
|
|
.rev_iter_state_roots()
|
|
.expect("should get iter")
|
|
.last()
|
|
.map(|(_, slot)| slot),
|
|
Some(Slot::new(0))
|
|
);
|
|
assert_eq!(
|
|
harness
|
|
.chain
|
|
.rev_iter_block_roots()
|
|
.expect("should get iter")
|
|
.last()
|
|
.map(|(_, slot)| slot),
|
|
Some(Slot::new(0))
|
|
);
|
|
}
|