1404 lines
46 KiB
Rust
1404 lines
46 KiB
Rust
#![cfg(not(debug_assertions))]
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use beacon_chain::test_utils::{
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AttestationStrategy, BeaconChainHarness, BlockStrategy, EphemeralHarnessType,
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};
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use beacon_chain::{BeaconSnapshot, BlockError, ChainSegmentResult, NotifyExecutionLayer};
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use fork_choice::CountUnrealized;
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use lazy_static::lazy_static;
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use logging::test_logger;
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use slasher::{Config as SlasherConfig, Slasher};
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use state_processing::{
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common::get_indexed_attestation,
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per_block_processing::{per_block_processing, BlockSignatureStrategy},
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per_slot_processing, BlockProcessingError, ConsensusContext, VerifyBlockRoot,
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};
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use std::marker::PhantomData;
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use std::sync::Arc;
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use tempfile::tempdir;
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use types::{test_utils::generate_deterministic_keypair, *};
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type E = MainnetEthSpec;
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// Should ideally be divisible by 3.
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const VALIDATOR_COUNT: usize = 24;
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const CHAIN_SEGMENT_LENGTH: usize = 64 * 5;
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const BLOCK_INDICES: &[usize] = &[0, 1, 32, 64, 68 + 1, 129, CHAIN_SEGMENT_LENGTH - 1];
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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(VALIDATOR_COUNT);
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}
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async fn get_chain_segment() -> Vec<BeaconSnapshot<E>> {
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let harness = get_harness(VALIDATOR_COUNT);
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harness
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.extend_chain(
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CHAIN_SEGMENT_LENGTH,
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BlockStrategy::OnCanonicalHead,
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AttestationStrategy::AllValidators,
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)
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.await;
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let mut segment = Vec::with_capacity(CHAIN_SEGMENT_LENGTH);
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for snapshot in harness
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.chain
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.chain_dump()
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.expect("should dump chain")
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.into_iter()
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.skip(1)
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{
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let full_block = harness
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.chain
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.get_block(&snapshot.beacon_block_root)
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.await
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.unwrap()
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.unwrap();
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segment.push(BeaconSnapshot {
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beacon_block_root: snapshot.beacon_block_root,
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beacon_block: Arc::new(full_block),
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beacon_state: snapshot.beacon_state,
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});
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}
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segment
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}
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fn get_harness(validator_count: usize) -> BeaconChainHarness<EphemeralHarnessType<E>> {
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let harness = BeaconChainHarness::builder(MainnetEthSpec)
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.default_spec()
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.keypairs(KEYPAIRS[0..validator_count].to_vec())
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.fresh_ephemeral_store()
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.mock_execution_layer()
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.build();
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harness.advance_slot();
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harness
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}
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fn chain_segment_blocks(chain_segment: &[BeaconSnapshot<E>]) -> Vec<Arc<SignedBeaconBlock<E>>> {
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chain_segment
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.iter()
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.map(|snapshot| snapshot.beacon_block.clone().into())
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.collect()
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}
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fn junk_signature() -> Signature {
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let kp = generate_deterministic_keypair(VALIDATOR_COUNT);
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let message = Hash256::from_slice(&[42; 32]);
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kp.sk.sign(message)
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}
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fn junk_aggregate_signature() -> AggregateSignature {
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let mut agg_sig = AggregateSignature::empty();
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agg_sig.add_assign(&junk_signature());
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agg_sig
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}
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fn update_proposal_signatures(
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snapshots: &mut [BeaconSnapshot<E>],
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harness: &BeaconChainHarness<EphemeralHarnessType<E>>,
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) {
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for snapshot in snapshots {
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let spec = &harness.chain.spec;
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let slot = snapshot.beacon_block.slot();
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let state = &snapshot.beacon_state;
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let proposer_index = state
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.get_beacon_proposer_index(slot, spec)
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.expect("should find proposer index");
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let keypair = harness
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.validator_keypairs
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.get(proposer_index)
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.expect("proposer keypair should be available");
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let (block, _) = snapshot.beacon_block.as_ref().clone().deconstruct();
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snapshot.beacon_block = Arc::new(block.sign(
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&keypair.sk,
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&state.fork(),
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state.genesis_validators_root(),
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spec,
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));
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}
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}
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fn update_parent_roots(snapshots: &mut [BeaconSnapshot<E>]) {
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for i in 0..snapshots.len() {
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let root = snapshots[i].beacon_block.canonical_root();
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if let Some(child) = snapshots.get_mut(i + 1) {
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let (mut block, signature) = child.beacon_block.as_ref().clone().deconstruct();
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*block.parent_root_mut() = root;
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child.beacon_block = Arc::new(SignedBeaconBlock::from_block(block, signature))
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}
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}
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}
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#[tokio::test]
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async fn chain_segment_full_segment() {
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let harness = get_harness(VALIDATOR_COUNT);
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let chain_segment = get_chain_segment().await;
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let blocks = chain_segment_blocks(&chain_segment);
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harness
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.chain
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.slot_clock
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.set_slot(blocks.last().unwrap().slot().as_u64());
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// Sneak in a little check to ensure we can process empty chain segments.
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harness
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.chain
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.process_chain_segment(vec![], CountUnrealized::True, NotifyExecutionLayer::Yes)
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.await
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.into_block_error()
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.expect("should import empty chain segment");
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harness
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.chain
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.process_chain_segment(
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blocks.clone().into(),
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CountUnrealized::True,
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NotifyExecutionLayer::Yes,
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)
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.await
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.into_block_error()
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.expect("should import chain segment");
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harness.chain.recompute_head_at_current_slot().await;
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assert_eq!(
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harness.head_block_root(),
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blocks.last().unwrap().canonical_root(),
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"harness should have last block as head"
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);
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}
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#[tokio::test]
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async fn chain_segment_varying_chunk_size() {
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for chunk_size in &[1, 2, 3, 5, 31, 32, 33, 42] {
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let harness = get_harness(VALIDATOR_COUNT);
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let chain_segment = get_chain_segment().await;
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let blocks = chain_segment_blocks(&chain_segment);
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harness
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.chain
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.slot_clock
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.set_slot(blocks.last().unwrap().slot().as_u64());
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for chunk in blocks.chunks(*chunk_size) {
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harness
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.chain
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.process_chain_segment(
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chunk.to_vec().into(),
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CountUnrealized::True,
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NotifyExecutionLayer::Yes,
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)
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.await
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.into_block_error()
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.unwrap_or_else(|_| panic!("should import chain segment of len {}", chunk_size));
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}
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harness.chain.recompute_head_at_current_slot().await;
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assert_eq!(
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harness.head_block_root(),
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blocks.last().unwrap().canonical_root(),
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"harness should have last block as head"
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);
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}
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}
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#[tokio::test]
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async fn chain_segment_non_linear_parent_roots() {
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let harness = get_harness(VALIDATOR_COUNT);
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let chain_segment = get_chain_segment().await;
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harness
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.chain
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.slot_clock
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.set_slot(chain_segment.last().unwrap().beacon_block.slot().as_u64());
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/*
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* Test with a block removed.
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*/
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let mut blocks = chain_segment_blocks(&chain_segment);
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blocks.remove(2);
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assert!(
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matches!(
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harness
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.chain
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.process_chain_segment(
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blocks.into(),
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CountUnrealized::True,
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NotifyExecutionLayer::Yes
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)
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.await
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.into_block_error(),
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Err(BlockError::NonLinearParentRoots)
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),
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"should not import chain with missing parent"
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);
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/*
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* Test with a modified parent root.
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*/
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let mut blocks = chain_segment_blocks(&chain_segment);
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let (mut block, signature) = blocks[3].as_ref().clone().deconstruct();
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*block.parent_root_mut() = Hash256::zero();
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blocks[3] = Arc::new(SignedBeaconBlock::from_block(block, signature));
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assert!(
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matches!(
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harness
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.chain
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.process_chain_segment(
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blocks.into(),
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CountUnrealized::True,
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NotifyExecutionLayer::Yes
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)
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.await
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.into_block_error(),
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Err(BlockError::NonLinearParentRoots)
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),
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"should not import chain with a broken parent root link"
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);
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}
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#[tokio::test]
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async fn chain_segment_non_linear_slots() {
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let harness = get_harness(VALIDATOR_COUNT);
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let chain_segment = get_chain_segment().await;
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harness
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.chain
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.slot_clock
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.set_slot(chain_segment.last().unwrap().beacon_block.slot().as_u64());
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/*
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* Test where a child is lower than the parent.
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*/
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let mut blocks = chain_segment_blocks(&chain_segment);
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let (mut block, signature) = blocks[3].as_ref().clone().deconstruct();
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*block.slot_mut() = Slot::new(0);
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blocks[3] = Arc::new(SignedBeaconBlock::from_block(block, signature));
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assert!(
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matches!(
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harness
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.chain
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.process_chain_segment(
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blocks.into(),
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CountUnrealized::True,
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NotifyExecutionLayer::Yes
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)
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.await
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.into_block_error(),
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Err(BlockError::NonLinearSlots)
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),
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"should not import chain with a parent that has a lower slot than its child"
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);
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/*
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* Test where a child is equal to the parent.
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*/
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let mut blocks = chain_segment_blocks(&chain_segment);
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let (mut block, signature) = blocks[3].as_ref().clone().deconstruct();
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*block.slot_mut() = blocks[2].slot();
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blocks[3] = Arc::new(SignedBeaconBlock::from_block(block, signature));
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assert!(
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matches!(
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harness
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.chain
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.process_chain_segment(
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blocks.into(),
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CountUnrealized::True,
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NotifyExecutionLayer::Yes
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)
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.await
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.into_block_error(),
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Err(BlockError::NonLinearSlots)
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),
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"should not import chain with a parent that has an equal slot to its child"
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);
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}
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async fn assert_invalid_signature(
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chain_segment: &[BeaconSnapshot<E>],
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harness: &BeaconChainHarness<EphemeralHarnessType<E>>,
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block_index: usize,
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snapshots: &[BeaconSnapshot<E>],
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item: &str,
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) {
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let blocks = snapshots
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.iter()
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.map(|snapshot| snapshot.beacon_block.clone().into())
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.collect();
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// Ensure the block will be rejected if imported in a chain segment.
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assert!(
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matches!(
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harness
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.chain
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.process_chain_segment(
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blocks.into(),
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CountUnrealized::True,
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NotifyExecutionLayer::Yes
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)
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.await
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.into_block_error(),
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Err(BlockError::InvalidSignature)
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),
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"should not import chain segment with an invalid {} signature",
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item
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);
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// Call fork choice to update cached head (including finalization).
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harness.chain.recompute_head_at_current_slot().await;
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// Ensure the block will be rejected if imported on its own (without gossip checking).
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let ancestor_blocks = chain_segment
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.iter()
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.take(block_index)
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.map(|snapshot| snapshot.beacon_block.clone().into())
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.collect();
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// We don't care if this fails, we just call this to ensure that all prior blocks have been
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// imported prior to this test.
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let _ = harness
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.chain
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.process_chain_segment(
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ancestor_blocks,
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CountUnrealized::True,
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NotifyExecutionLayer::Yes,
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)
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.await;
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harness.chain.recompute_head_at_current_slot().await;
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let process_res = harness
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.chain
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.process_block(
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snapshots[block_index].beacon_block.canonical_root(),
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snapshots[block_index].beacon_block.clone(),
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CountUnrealized::True,
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NotifyExecutionLayer::Yes,
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)
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.await;
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assert!(
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matches!(process_res, Err(BlockError::InvalidSignature)),
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"should not import individual block with an invalid {} signature, got: {:?}",
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item,
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process_res
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);
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// NOTE: we choose not to check gossip verification here. It only checks one signature
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// (proposal) and that is already tested elsewhere in this file.
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//
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// It's not trivial to just check gossip verification since it will start refusing
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// blocks as soon as it has seen one valid proposal signature for a given (validator,
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// slot) tuple.
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}
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async fn get_invalid_sigs_harness(
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chain_segment: &[BeaconSnapshot<E>],
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) -> BeaconChainHarness<EphemeralHarnessType<E>> {
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let harness = get_harness(VALIDATOR_COUNT);
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harness
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.chain
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.slot_clock
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.set_slot(chain_segment.last().unwrap().beacon_block.slot().as_u64());
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harness
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}
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#[tokio::test]
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async fn invalid_signature_gossip_block() {
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let chain_segment = get_chain_segment().await;
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for &block_index in BLOCK_INDICES {
|
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// Ensure the block will be rejected if imported on its own (without gossip checking).
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let harness = get_invalid_sigs_harness(&chain_segment).await;
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let mut snapshots = chain_segment.clone();
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let (block, _) = snapshots[block_index]
|
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.beacon_block
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.as_ref()
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.clone()
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.deconstruct();
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snapshots[block_index].beacon_block = Arc::new(SignedBeaconBlock::from_block(
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block.clone(),
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junk_signature(),
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));
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// Import all the ancestors before the `block_index` block.
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let ancestor_blocks = chain_segment
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.iter()
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.take(block_index)
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.map(|snapshot| snapshot.beacon_block.clone().into())
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.collect();
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harness
|
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.chain
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.process_chain_segment(
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ancestor_blocks,
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CountUnrealized::True,
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NotifyExecutionLayer::Yes,
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)
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.await
|
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.into_block_error()
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.expect("should import all blocks prior to the one being tested");
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let signed_block = SignedBeaconBlock::from_block(block, junk_signature());
|
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assert!(
|
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matches!(
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harness
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.chain
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.process_block(
|
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signed_block.canonical_root(),
|
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Arc::new(signed_block),
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CountUnrealized::True,
|
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NotifyExecutionLayer::Yes,
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)
|
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.await,
|
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Err(BlockError::InvalidSignature)
|
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),
|
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"should not import individual block with an invalid gossip signature",
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);
|
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}
|
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}
|
|
|
|
#[tokio::test]
|
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async fn invalid_signature_block_proposal() {
|
|
let chain_segment = get_chain_segment().await;
|
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for &block_index in BLOCK_INDICES {
|
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let harness = get_invalid_sigs_harness(&chain_segment).await;
|
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let mut snapshots = chain_segment.clone();
|
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let (block, _) = snapshots[block_index]
|
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.beacon_block
|
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.as_ref()
|
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.clone()
|
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.deconstruct();
|
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snapshots[block_index].beacon_block = Arc::new(SignedBeaconBlock::from_block(
|
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block.clone(),
|
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junk_signature(),
|
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));
|
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let blocks = snapshots
|
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.iter()
|
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.map(|snapshot| snapshot.beacon_block.clone().into())
|
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.collect::<Vec<_>>();
|
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// Ensure the block will be rejected if imported in a chain segment.
|
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assert!(
|
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matches!(
|
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harness
|
|
.chain
|
|
.process_chain_segment(
|
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blocks.into(),
|
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CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes
|
|
)
|
|
.await
|
|
.into_block_error(),
|
|
Err(BlockError::InvalidSignature)
|
|
),
|
|
"should not import chain segment with an invalid block signature",
|
|
);
|
|
}
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn invalid_signature_randao_reveal() {
|
|
let chain_segment = get_chain_segment().await;
|
|
for &block_index in BLOCK_INDICES {
|
|
let harness = get_invalid_sigs_harness(&chain_segment).await;
|
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let mut snapshots = chain_segment.clone();
|
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let (mut block, signature) = snapshots[block_index]
|
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.beacon_block
|
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.as_ref()
|
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.clone()
|
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.deconstruct();
|
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*block.body_mut().randao_reveal_mut() = junk_signature();
|
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snapshots[block_index].beacon_block =
|
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Arc::new(SignedBeaconBlock::from_block(block, signature));
|
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update_parent_roots(&mut snapshots);
|
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update_proposal_signatures(&mut snapshots, &harness);
|
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assert_invalid_signature(&chain_segment, &harness, block_index, &snapshots, "randao").await;
|
|
}
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn invalid_signature_proposer_slashing() {
|
|
let chain_segment = get_chain_segment().await;
|
|
for &block_index in BLOCK_INDICES {
|
|
let harness = get_invalid_sigs_harness(&chain_segment).await;
|
|
let mut snapshots = chain_segment.clone();
|
|
let (mut block, signature) = snapshots[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
let proposer_slashing = ProposerSlashing {
|
|
signed_header_1: SignedBeaconBlockHeader {
|
|
message: block.block_header(),
|
|
signature: junk_signature(),
|
|
},
|
|
signed_header_2: SignedBeaconBlockHeader {
|
|
message: block.block_header(),
|
|
signature: junk_signature(),
|
|
},
|
|
};
|
|
block
|
|
.body_mut()
|
|
.proposer_slashings_mut()
|
|
.push(proposer_slashing)
|
|
.expect("should update proposer slashing");
|
|
snapshots[block_index].beacon_block =
|
|
Arc::new(SignedBeaconBlock::from_block(block, signature));
|
|
update_parent_roots(&mut snapshots);
|
|
update_proposal_signatures(&mut snapshots, &harness);
|
|
assert_invalid_signature(
|
|
&chain_segment,
|
|
&harness,
|
|
block_index,
|
|
&snapshots,
|
|
"proposer slashing",
|
|
)
|
|
.await;
|
|
}
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn invalid_signature_attester_slashing() {
|
|
let chain_segment = get_chain_segment().await;
|
|
for &block_index in BLOCK_INDICES {
|
|
let harness = get_invalid_sigs_harness(&chain_segment).await;
|
|
let mut snapshots = chain_segment.clone();
|
|
let indexed_attestation = IndexedAttestation {
|
|
attesting_indices: vec![0].into(),
|
|
data: AttestationData {
|
|
slot: Slot::new(0),
|
|
index: 0,
|
|
beacon_block_root: Hash256::zero(),
|
|
source: Checkpoint {
|
|
epoch: Epoch::new(0),
|
|
root: Hash256::zero(),
|
|
},
|
|
target: Checkpoint {
|
|
epoch: Epoch::new(0),
|
|
root: Hash256::zero(),
|
|
},
|
|
},
|
|
signature: junk_aggregate_signature(),
|
|
};
|
|
let attester_slashing = AttesterSlashing {
|
|
attestation_1: indexed_attestation.clone(),
|
|
attestation_2: indexed_attestation,
|
|
};
|
|
let (mut block, signature) = snapshots[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
block
|
|
.body_mut()
|
|
.attester_slashings_mut()
|
|
.push(attester_slashing)
|
|
.expect("should update attester slashing");
|
|
snapshots[block_index].beacon_block =
|
|
Arc::new(SignedBeaconBlock::from_block(block, signature));
|
|
update_parent_roots(&mut snapshots);
|
|
update_proposal_signatures(&mut snapshots, &harness);
|
|
assert_invalid_signature(
|
|
&chain_segment,
|
|
&harness,
|
|
block_index,
|
|
&snapshots,
|
|
"attester slashing",
|
|
)
|
|
.await;
|
|
}
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn invalid_signature_attestation() {
|
|
let chain_segment = get_chain_segment().await;
|
|
let mut checked_attestation = false;
|
|
|
|
for &block_index in BLOCK_INDICES {
|
|
let harness = get_invalid_sigs_harness(&chain_segment).await;
|
|
let mut snapshots = chain_segment.clone();
|
|
let (mut block, signature) = snapshots[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
if let Some(attestation) = block.body_mut().attestations_mut().get_mut(0) {
|
|
attestation.signature = junk_aggregate_signature();
|
|
snapshots[block_index].beacon_block =
|
|
Arc::new(SignedBeaconBlock::from_block(block, signature));
|
|
update_parent_roots(&mut snapshots);
|
|
update_proposal_signatures(&mut snapshots, &harness);
|
|
assert_invalid_signature(
|
|
&chain_segment,
|
|
&harness,
|
|
block_index,
|
|
&snapshots,
|
|
"attestation",
|
|
)
|
|
.await;
|
|
checked_attestation = true;
|
|
}
|
|
}
|
|
|
|
assert!(
|
|
checked_attestation,
|
|
"the test should check an attestation signature"
|
|
)
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn invalid_signature_deposit() {
|
|
let chain_segment = get_chain_segment().await;
|
|
for &block_index in BLOCK_INDICES {
|
|
// Note: an invalid deposit signature is permitted!
|
|
let harness = get_invalid_sigs_harness(&chain_segment).await;
|
|
let mut snapshots = chain_segment.clone();
|
|
let deposit = Deposit {
|
|
proof: vec![Hash256::zero(); DEPOSIT_TREE_DEPTH + 1].into(),
|
|
data: DepositData {
|
|
pubkey: Keypair::random().pk.into(),
|
|
withdrawal_credentials: Hash256::zero(),
|
|
amount: 0,
|
|
signature: junk_signature().into(),
|
|
},
|
|
};
|
|
let (mut block, signature) = snapshots[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
block
|
|
.body_mut()
|
|
.deposits_mut()
|
|
.push(deposit)
|
|
.expect("should update deposit");
|
|
snapshots[block_index].beacon_block =
|
|
Arc::new(SignedBeaconBlock::from_block(block, signature));
|
|
update_parent_roots(&mut snapshots);
|
|
update_proposal_signatures(&mut snapshots, &harness);
|
|
let blocks = snapshots
|
|
.iter()
|
|
.map(|snapshot| snapshot.beacon_block.clone().into())
|
|
.collect();
|
|
assert!(
|
|
!matches!(
|
|
harness
|
|
.chain
|
|
.process_chain_segment(
|
|
blocks.into(),
|
|
CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes
|
|
)
|
|
.await
|
|
.into_block_error(),
|
|
Err(BlockError::InvalidSignature)
|
|
),
|
|
"should not throw an invalid signature error for a bad deposit signature"
|
|
);
|
|
}
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn invalid_signature_exit() {
|
|
let chain_segment = get_chain_segment().await;
|
|
for &block_index in BLOCK_INDICES {
|
|
let harness = get_invalid_sigs_harness(&chain_segment).await;
|
|
let mut snapshots = chain_segment.clone();
|
|
let epoch = snapshots[block_index].beacon_state.current_epoch();
|
|
let (mut block, signature) = snapshots[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
block
|
|
.body_mut()
|
|
.voluntary_exits_mut()
|
|
.push(SignedVoluntaryExit {
|
|
message: VoluntaryExit {
|
|
epoch,
|
|
validator_index: 0,
|
|
},
|
|
signature: junk_signature(),
|
|
})
|
|
.expect("should update deposit");
|
|
snapshots[block_index].beacon_block =
|
|
Arc::new(SignedBeaconBlock::from_block(block, signature));
|
|
update_parent_roots(&mut snapshots);
|
|
update_proposal_signatures(&mut snapshots, &harness);
|
|
assert_invalid_signature(
|
|
&chain_segment,
|
|
&harness,
|
|
block_index,
|
|
&snapshots,
|
|
"voluntary exit",
|
|
)
|
|
.await;
|
|
}
|
|
}
|
|
|
|
fn unwrap_err<T, E>(result: Result<T, E>) -> E {
|
|
match result {
|
|
Ok(_) => panic!("called unwrap_err on Ok"),
|
|
Err(e) => e,
|
|
}
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn block_gossip_verification() {
|
|
let harness = get_harness(VALIDATOR_COUNT);
|
|
let chain_segment = get_chain_segment().await;
|
|
|
|
let block_index = CHAIN_SEGMENT_LENGTH - 2;
|
|
|
|
harness
|
|
.chain
|
|
.slot_clock
|
|
.set_slot(chain_segment[block_index].beacon_block.slot().as_u64());
|
|
|
|
// Import the ancestors prior to the block we're testing.
|
|
for snapshot in &chain_segment[0..block_index] {
|
|
let gossip_verified = harness
|
|
.chain
|
|
.verify_block_for_gossip(snapshot.beacon_block.clone().into())
|
|
.await
|
|
.expect("should obtain gossip verified block");
|
|
|
|
harness
|
|
.chain
|
|
.process_block(
|
|
gossip_verified.block_root,
|
|
gossip_verified,
|
|
CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes,
|
|
)
|
|
.await
|
|
.expect("should import valid gossip verified block");
|
|
}
|
|
|
|
// Recompute the head to ensure we cache the latest view of fork choice.
|
|
harness.chain.recompute_head_at_current_slot().await;
|
|
|
|
/*
|
|
* This test ensures that:
|
|
*
|
|
* Spec v0.12.1
|
|
*
|
|
* The block is not from a future slot (with a MAXIMUM_GOSSIP_CLOCK_DISPARITY allowance) --
|
|
* i.e. validate that signed_beacon_block.message.slot <= current_slot (a client MAY queue
|
|
* future blocks for processing at the appropriate slot).
|
|
*/
|
|
|
|
let (mut block, signature) = chain_segment[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
let expected_block_slot = block.slot() + 1;
|
|
*block.slot_mut() = expected_block_slot;
|
|
assert!(
|
|
matches!(
|
|
unwrap_err(harness.chain.verify_block_for_gossip(Arc::new(SignedBeaconBlock::from_block(block, signature)).into()).await),
|
|
BlockError::FutureSlot {
|
|
present_slot,
|
|
block_slot,
|
|
}
|
|
if present_slot == expected_block_slot - 1 && block_slot == expected_block_slot
|
|
),
|
|
"should not import a block with a future slot"
|
|
);
|
|
|
|
/*
|
|
* This test ensure that:
|
|
*
|
|
* Spec v0.12.1
|
|
*
|
|
* The block is from a slot greater than the latest finalized slot -- i.e. validate that
|
|
* signed_beacon_block.message.slot >
|
|
* compute_start_slot_at_epoch(state.finalized_checkpoint.epoch) (a client MAY choose to
|
|
* validate and store such blocks for additional purposes -- e.g. slashing detection, archive
|
|
* nodes, etc).
|
|
*/
|
|
|
|
let (mut block, signature) = chain_segment[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
let expected_finalized_slot = harness
|
|
.finalized_checkpoint()
|
|
.epoch
|
|
.start_slot(E::slots_per_epoch());
|
|
*block.slot_mut() = expected_finalized_slot;
|
|
assert!(
|
|
matches!(
|
|
unwrap_err(harness.chain.verify_block_for_gossip(Arc::new(SignedBeaconBlock::from_block(block, signature))).await),
|
|
BlockError::WouldRevertFinalizedSlot {
|
|
block_slot,
|
|
finalized_slot,
|
|
}
|
|
if block_slot == expected_finalized_slot && finalized_slot == expected_finalized_slot
|
|
),
|
|
"should not import a block with a finalized slot"
|
|
);
|
|
|
|
/*
|
|
* This test ensures that:
|
|
*
|
|
* Spec v0.12.1
|
|
*
|
|
* The proposer signature, signed_beacon_block.signature, is valid with respect to the
|
|
* proposer_index pubkey.
|
|
*/
|
|
|
|
let block = chain_segment[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct()
|
|
.0;
|
|
assert!(
|
|
matches!(
|
|
unwrap_err(
|
|
harness
|
|
.chain
|
|
.verify_block_for_gossip(
|
|
Arc::new(SignedBeaconBlock::from_block(block, junk_signature())).into()
|
|
)
|
|
.await
|
|
),
|
|
BlockError::ProposalSignatureInvalid
|
|
),
|
|
"should not import a block with an invalid proposal signature"
|
|
);
|
|
|
|
/*
|
|
* This test ensures that:
|
|
*
|
|
* Spec v0.12.2
|
|
*
|
|
* The block's parent (defined by block.parent_root) passes validation.
|
|
*/
|
|
|
|
let (mut block, signature) = chain_segment[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
let parent_root = Hash256::from_low_u64_be(42);
|
|
*block.parent_root_mut() = parent_root;
|
|
assert!(
|
|
matches!(
|
|
unwrap_err(harness.chain.verify_block_for_gossip(Arc::new(SignedBeaconBlock::from_block(block, signature)).into()).await),
|
|
BlockError::ParentUnknown(block)
|
|
if block.parent_root() == parent_root
|
|
),
|
|
"should not import a block for an unknown parent"
|
|
);
|
|
|
|
/*
|
|
* This test ensures that:
|
|
*
|
|
* Spec v0.12.2
|
|
*
|
|
* The current finalized_checkpoint is an ancestor of block -- i.e. get_ancestor(store,
|
|
* block.parent_root, compute_start_slot_at_epoch(store.finalized_checkpoint.epoch)) ==
|
|
* store.finalized_checkpoint.root
|
|
*/
|
|
|
|
let (mut block, signature) = chain_segment[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct();
|
|
let parent_root = chain_segment[0].beacon_block_root;
|
|
*block.parent_root_mut() = parent_root;
|
|
assert!(
|
|
matches!(
|
|
unwrap_err(harness.chain.verify_block_for_gossip(Arc::new(SignedBeaconBlock::from_block(block, signature)).into()).await),
|
|
BlockError::NotFinalizedDescendant { block_parent_root }
|
|
if block_parent_root == parent_root
|
|
),
|
|
"should not import a block that conflicts with finality"
|
|
);
|
|
|
|
/*
|
|
* This test ensures that:
|
|
*
|
|
* Spec v0.12.1
|
|
*
|
|
* The block is proposed by the expected proposer_index for the block's slot in the context of
|
|
* the current shuffling (defined by parent_root/slot). If the proposer_index cannot
|
|
* immediately be verified against the expected shuffling, the block MAY be queued for later
|
|
* processing while proposers for the block's branch are calculated.
|
|
*/
|
|
|
|
let mut block = chain_segment[block_index]
|
|
.beacon_block
|
|
.as_ref()
|
|
.clone()
|
|
.deconstruct()
|
|
.0;
|
|
let expected_proposer = block.proposer_index();
|
|
let other_proposer = (0..VALIDATOR_COUNT as u64)
|
|
.into_iter()
|
|
.find(|i| *i != block.proposer_index())
|
|
.expect("there must be more than one validator in this test");
|
|
*block.proposer_index_mut() = other_proposer;
|
|
let block = block.sign(
|
|
&generate_deterministic_keypair(other_proposer as usize).sk,
|
|
&harness.chain.canonical_head.cached_head().head_fork(),
|
|
harness.chain.genesis_validators_root,
|
|
&harness.chain.spec,
|
|
);
|
|
assert!(
|
|
matches!(
|
|
unwrap_err(harness.chain.verify_block_for_gossip(Arc::new(block.clone()).into()).await),
|
|
BlockError::IncorrectBlockProposer {
|
|
block,
|
|
local_shuffling,
|
|
}
|
|
if block == other_proposer && local_shuffling == expected_proposer
|
|
),
|
|
"should not import a block with the wrong proposer index"
|
|
);
|
|
// Check to ensure that we registered this is a valid block from this proposer.
|
|
assert!(
|
|
matches!(
|
|
unwrap_err(harness.chain.verify_block_for_gossip(Arc::new(block.clone()).into()).await),
|
|
BlockError::RepeatProposal {
|
|
proposer,
|
|
slot,
|
|
}
|
|
if proposer == other_proposer && slot == block.message().slot()
|
|
),
|
|
"should register any valid signature against the proposer, even if the block failed later verification"
|
|
);
|
|
|
|
let block = chain_segment[block_index].beacon_block.clone();
|
|
assert!(
|
|
harness
|
|
.chain
|
|
.verify_block_for_gossip(block.into())
|
|
.await
|
|
.is_ok(),
|
|
"the valid block should be processed"
|
|
);
|
|
|
|
/*
|
|
* This test ensures that:
|
|
*
|
|
* Spec v0.12.1
|
|
*
|
|
* The block is the first block with valid signature received for the proposer for the slot,
|
|
* signed_beacon_block.message.slot.
|
|
*/
|
|
|
|
let block = chain_segment[block_index].beacon_block.clone();
|
|
assert!(
|
|
matches!(
|
|
harness
|
|
.chain
|
|
.verify_block_for_gossip(block.clone().into())
|
|
.await
|
|
.err()
|
|
.expect("should error when processing known block"),
|
|
BlockError::RepeatProposal {
|
|
proposer,
|
|
slot,
|
|
}
|
|
if proposer == block.message().proposer_index() && slot == block.message().slot()
|
|
),
|
|
"the second proposal by this validator should be rejected"
|
|
);
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn verify_block_for_gossip_slashing_detection() {
|
|
let slasher_dir = tempdir().unwrap();
|
|
let slasher = Arc::new(
|
|
Slasher::open(SlasherConfig::new(slasher_dir.path().into()), test_logger()).unwrap(),
|
|
);
|
|
|
|
let inner_slasher = slasher.clone();
|
|
let harness = BeaconChainHarness::builder(MainnetEthSpec)
|
|
.default_spec()
|
|
.keypairs(KEYPAIRS.to_vec())
|
|
.fresh_ephemeral_store()
|
|
.initial_mutator(Box::new(move |builder| builder.slasher(inner_slasher)))
|
|
.mock_execution_layer()
|
|
.build();
|
|
harness.advance_slot();
|
|
|
|
let state = harness.get_current_state();
|
|
let (block1, _) = harness.make_block(state.clone(), Slot::new(1)).await;
|
|
let (block2, _) = harness.make_block(state, Slot::new(1)).await;
|
|
|
|
let verified_block = harness
|
|
.chain
|
|
.verify_block_for_gossip(Arc::new(block1).into())
|
|
.await
|
|
.unwrap();
|
|
harness
|
|
.chain
|
|
.process_block(
|
|
verified_block.block_root,
|
|
verified_block,
|
|
CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes,
|
|
)
|
|
.await
|
|
.unwrap();
|
|
unwrap_err(
|
|
harness
|
|
.chain
|
|
.verify_block_for_gossip(Arc::new(block2).into())
|
|
.await,
|
|
);
|
|
|
|
// Slasher should have been handed the two conflicting blocks and crafted a slashing.
|
|
slasher.process_queued(Epoch::new(0)).unwrap();
|
|
let proposer_slashings = slasher.get_proposer_slashings();
|
|
assert_eq!(proposer_slashings.len(), 1);
|
|
// windows won't delete the temporary directory if you don't do this..
|
|
drop(harness);
|
|
drop(slasher);
|
|
slasher_dir.close().unwrap();
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn verify_block_for_gossip_doppelganger_detection() {
|
|
let harness = get_harness(VALIDATOR_COUNT);
|
|
|
|
let state = harness.get_current_state();
|
|
let (block, _) = harness.make_block(state.clone(), Slot::new(1)).await;
|
|
|
|
let verified_block = harness
|
|
.chain
|
|
.verify_block_for_gossip(Arc::new(block).into())
|
|
.await
|
|
.unwrap();
|
|
let attestations = verified_block.block.message().body().attestations().clone();
|
|
harness
|
|
.chain
|
|
.process_block(
|
|
verified_block.block_root,
|
|
verified_block,
|
|
CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes,
|
|
)
|
|
.await
|
|
.unwrap();
|
|
|
|
for att in attestations.iter() {
|
|
let epoch = att.data.target.epoch;
|
|
let committee = state
|
|
.get_beacon_committee(att.data.slot, att.data.index)
|
|
.unwrap();
|
|
let indexed_attestation = get_indexed_attestation(committee.committee, att).unwrap();
|
|
|
|
for &index in &indexed_attestation.attesting_indices {
|
|
let index = index as usize;
|
|
|
|
assert!(harness.chain.validator_seen_at_epoch(index, epoch));
|
|
|
|
// Check the correct beacon cache is populated
|
|
assert!(harness
|
|
.chain
|
|
.observed_block_attesters
|
|
.read()
|
|
.validator_has_been_observed(epoch, index)
|
|
.expect("should check if block attester was observed"));
|
|
assert!(!harness
|
|
.chain
|
|
.observed_gossip_attesters
|
|
.read()
|
|
.validator_has_been_observed(epoch, index)
|
|
.expect("should check if gossip attester was observed"));
|
|
assert!(!harness
|
|
.chain
|
|
.observed_aggregators
|
|
.read()
|
|
.validator_has_been_observed(epoch, index)
|
|
.expect("should check if gossip aggregator was observed"));
|
|
}
|
|
}
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn add_base_block_to_altair_chain() {
|
|
let mut spec = MainnetEthSpec::default_spec();
|
|
let slots_per_epoch = MainnetEthSpec::slots_per_epoch();
|
|
|
|
// The Altair fork happens at epoch 1.
|
|
spec.altair_fork_epoch = Some(Epoch::new(1));
|
|
|
|
let harness = BeaconChainHarness::builder(MainnetEthSpec)
|
|
.spec(spec)
|
|
.keypairs(KEYPAIRS[..].to_vec())
|
|
.fresh_ephemeral_store()
|
|
.mock_execution_layer()
|
|
.build();
|
|
|
|
// Move out of the genesis slot.
|
|
harness.advance_slot();
|
|
|
|
// Build out all the blocks in epoch 0.
|
|
harness
|
|
.extend_chain(
|
|
slots_per_epoch as usize,
|
|
BlockStrategy::OnCanonicalHead,
|
|
AttestationStrategy::AllValidators,
|
|
)
|
|
.await;
|
|
|
|
// Move into the next empty slot.
|
|
harness.advance_slot();
|
|
|
|
// Produce an Altair block.
|
|
let state = harness.get_current_state();
|
|
let slot = harness.get_current_slot();
|
|
let (altair_signed_block, _) = harness.make_block(state.clone(), slot).await;
|
|
let altair_block = &altair_signed_block
|
|
.as_altair()
|
|
.expect("test expects an altair block")
|
|
.message;
|
|
let altair_body = &altair_block.body;
|
|
|
|
// Create a Base-equivalent of `altair_block`.
|
|
let base_block = SignedBeaconBlock::Base(SignedBeaconBlockBase {
|
|
message: BeaconBlockBase {
|
|
slot: altair_block.slot,
|
|
proposer_index: altair_block.proposer_index,
|
|
parent_root: altair_block.parent_root,
|
|
state_root: altair_block.state_root,
|
|
body: BeaconBlockBodyBase {
|
|
randao_reveal: altair_body.randao_reveal.clone(),
|
|
eth1_data: altair_body.eth1_data.clone(),
|
|
graffiti: altair_body.graffiti,
|
|
proposer_slashings: altair_body.proposer_slashings.clone(),
|
|
attester_slashings: altair_body.attester_slashings.clone(),
|
|
attestations: altair_body.attestations.clone(),
|
|
deposits: altair_body.deposits.clone(),
|
|
voluntary_exits: altair_body.voluntary_exits.clone(),
|
|
_phantom: PhantomData,
|
|
},
|
|
},
|
|
signature: Signature::empty(),
|
|
});
|
|
|
|
// Ensure that it would be impossible to apply this block to `per_block_processing`.
|
|
{
|
|
let mut state = state;
|
|
let mut ctxt = ConsensusContext::new(base_block.slot());
|
|
per_slot_processing(&mut state, None, &harness.chain.spec).unwrap();
|
|
assert!(matches!(
|
|
per_block_processing(
|
|
&mut state,
|
|
&base_block,
|
|
BlockSignatureStrategy::NoVerification,
|
|
VerifyBlockRoot::True,
|
|
&mut ctxt,
|
|
&harness.chain.spec,
|
|
),
|
|
Err(BlockProcessingError::InconsistentBlockFork(
|
|
InconsistentFork {
|
|
fork_at_slot: ForkName::Altair,
|
|
object_fork: ForkName::Base,
|
|
}
|
|
))
|
|
));
|
|
}
|
|
|
|
// Ensure that it would be impossible to verify this block for gossip.
|
|
assert!(matches!(
|
|
harness
|
|
.chain
|
|
.verify_block_for_gossip(Arc::new(base_block.clone()).into())
|
|
.await
|
|
.err()
|
|
.expect("should error when processing base block"),
|
|
BlockError::InconsistentFork(InconsistentFork {
|
|
fork_at_slot: ForkName::Altair,
|
|
object_fork: ForkName::Base,
|
|
})
|
|
));
|
|
|
|
// Ensure that it would be impossible to import via `BeaconChain::process_block`.
|
|
assert!(matches!(
|
|
harness
|
|
.chain
|
|
.process_block(
|
|
base_block.canonical_root(),
|
|
Arc::new(base_block.clone()),
|
|
CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes,
|
|
)
|
|
.await
|
|
.err()
|
|
.expect("should error when processing base block"),
|
|
BlockError::InconsistentFork(InconsistentFork {
|
|
fork_at_slot: ForkName::Altair,
|
|
object_fork: ForkName::Base,
|
|
})
|
|
));
|
|
|
|
// Ensure that it would be impossible to import via `BeaconChain::process_chain_segment`.
|
|
assert!(matches!(
|
|
harness
|
|
.chain
|
|
.process_chain_segment(
|
|
vec![Arc::new(base_block).into()],
|
|
CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes,
|
|
)
|
|
.await,
|
|
ChainSegmentResult::Failed {
|
|
imported_blocks: 0,
|
|
error: BlockError::InconsistentFork(InconsistentFork {
|
|
fork_at_slot: ForkName::Altair,
|
|
object_fork: ForkName::Base,
|
|
})
|
|
}
|
|
));
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn add_altair_block_to_base_chain() {
|
|
let mut spec = MainnetEthSpec::default_spec();
|
|
|
|
// Altair never happens.
|
|
spec.altair_fork_epoch = None;
|
|
|
|
let harness = BeaconChainHarness::builder(MainnetEthSpec)
|
|
.spec(spec)
|
|
.keypairs(KEYPAIRS[..].to_vec())
|
|
.fresh_ephemeral_store()
|
|
.mock_execution_layer()
|
|
.build();
|
|
|
|
// Move out of the genesis slot.
|
|
harness.advance_slot();
|
|
|
|
// Build one block.
|
|
harness
|
|
.extend_chain(
|
|
1,
|
|
BlockStrategy::OnCanonicalHead,
|
|
AttestationStrategy::AllValidators,
|
|
)
|
|
.await;
|
|
|
|
// Move into the next empty slot.
|
|
harness.advance_slot();
|
|
|
|
// Produce an altair block.
|
|
let state = harness.get_current_state();
|
|
let slot = harness.get_current_slot();
|
|
let (base_signed_block, _) = harness.make_block(state.clone(), slot).await;
|
|
let base_block = &base_signed_block
|
|
.as_base()
|
|
.expect("test expects a base block")
|
|
.message;
|
|
let base_body = &base_block.body;
|
|
|
|
// Create an Altair-equivalent of `altair_block`.
|
|
let altair_block = SignedBeaconBlock::Altair(SignedBeaconBlockAltair {
|
|
message: BeaconBlockAltair {
|
|
slot: base_block.slot,
|
|
proposer_index: base_block.proposer_index,
|
|
parent_root: base_block.parent_root,
|
|
state_root: base_block.state_root,
|
|
body: BeaconBlockBodyAltair {
|
|
randao_reveal: base_body.randao_reveal.clone(),
|
|
eth1_data: base_body.eth1_data.clone(),
|
|
graffiti: base_body.graffiti,
|
|
proposer_slashings: base_body.proposer_slashings.clone(),
|
|
attester_slashings: base_body.attester_slashings.clone(),
|
|
attestations: base_body.attestations.clone(),
|
|
deposits: base_body.deposits.clone(),
|
|
voluntary_exits: base_body.voluntary_exits.clone(),
|
|
sync_aggregate: SyncAggregate::empty(),
|
|
_phantom: PhantomData,
|
|
},
|
|
},
|
|
signature: Signature::empty(),
|
|
});
|
|
|
|
// Ensure that it would be impossible to apply this block to `per_block_processing`.
|
|
{
|
|
let mut state = state;
|
|
let mut ctxt = ConsensusContext::new(altair_block.slot());
|
|
per_slot_processing(&mut state, None, &harness.chain.spec).unwrap();
|
|
assert!(matches!(
|
|
per_block_processing(
|
|
&mut state,
|
|
&altair_block,
|
|
BlockSignatureStrategy::NoVerification,
|
|
VerifyBlockRoot::True,
|
|
&mut ctxt,
|
|
&harness.chain.spec,
|
|
),
|
|
Err(BlockProcessingError::InconsistentBlockFork(
|
|
InconsistentFork {
|
|
fork_at_slot: ForkName::Base,
|
|
object_fork: ForkName::Altair,
|
|
}
|
|
))
|
|
));
|
|
}
|
|
|
|
// Ensure that it would be impossible to verify this block for gossip.
|
|
assert!(matches!(
|
|
harness
|
|
.chain
|
|
.verify_block_for_gossip(Arc::new(altair_block.clone()).into())
|
|
.await
|
|
.err()
|
|
.expect("should error when processing altair block"),
|
|
BlockError::InconsistentFork(InconsistentFork {
|
|
fork_at_slot: ForkName::Base,
|
|
object_fork: ForkName::Altair,
|
|
})
|
|
));
|
|
|
|
// Ensure that it would be impossible to import via `BeaconChain::process_block`.
|
|
assert!(matches!(
|
|
harness
|
|
.chain
|
|
.process_block(
|
|
altair_block.canonical_root(),
|
|
Arc::new(altair_block.clone()),
|
|
CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes,
|
|
)
|
|
.await
|
|
.err()
|
|
.expect("should error when processing altair block"),
|
|
BlockError::InconsistentFork(InconsistentFork {
|
|
fork_at_slot: ForkName::Base,
|
|
object_fork: ForkName::Altair,
|
|
})
|
|
));
|
|
|
|
// Ensure that it would be impossible to import via `BeaconChain::process_chain_segment`.
|
|
assert!(matches!(
|
|
harness
|
|
.chain
|
|
.process_chain_segment(
|
|
vec![Arc::new(altair_block).into()],
|
|
CountUnrealized::True,
|
|
NotifyExecutionLayer::Yes
|
|
)
|
|
.await,
|
|
ChainSegmentResult::Failed {
|
|
imported_blocks: 0,
|
|
error: BlockError::InconsistentFork(InconsistentFork {
|
|
fork_at_slot: ForkName::Base,
|
|
object_fork: ForkName::Altair,
|
|
})
|
|
}
|
|
));
|
|
}
|