lighthouse/beacon_node/http_api/tests/fork_tests.rs
Michael Sproul 17a2c778e3 Altair validator client and HTTP API (#2404)
## Proposed Changes

* Implement the validator client and HTTP API changes necessary to support Altair


Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
2021-08-06 00:47:31 +00:00

306 lines
9.7 KiB
Rust

//! Tests for API behaviour across fork boundaries.
use crate::common::*;
use beacon_chain::{test_utils::RelativeSyncCommittee, StateSkipConfig};
use eth2::types::{StateId, SyncSubcommittee};
use types::{ChainSpec, Epoch, EthSpec, MinimalEthSpec, Slot};
type E = MinimalEthSpec;
fn altair_spec(altair_fork_epoch: Epoch) -> ChainSpec {
let mut spec = E::default_spec();
spec.altair_fork_epoch = Some(altair_fork_epoch);
spec
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn sync_committee_duties_across_fork() {
let validator_count = E::sync_committee_size();
let fork_epoch = Epoch::new(8);
let spec = altair_spec(fork_epoch);
let tester = InteractiveTester::<E>::new(Some(spec.clone()), validator_count);
let harness = &tester.harness;
let client = &tester.client;
let all_validators = harness.get_all_validators();
let all_validators_u64 = all_validators.iter().map(|x| *x as u64).collect::<Vec<_>>();
assert_eq!(harness.get_current_slot(), 0);
// Prior to the fork the endpoint should return an empty vec.
let early_duties = client
.post_validator_duties_sync(fork_epoch - 1, &all_validators_u64)
.await
.unwrap()
.data;
assert!(early_duties.is_empty());
// If there's a skip slot at the fork slot, the endpoint should return duties, even
// though the head state hasn't transitioned yet.
let fork_slot = fork_epoch.start_slot(E::slots_per_epoch());
let (genesis_state, genesis_state_root) = harness.get_current_state_and_root();
let (_, state) = harness
.add_attested_block_at_slot(
fork_slot - 1,
genesis_state,
genesis_state_root,
&all_validators,
)
.unwrap();
harness.advance_slot();
assert_eq!(harness.get_current_slot(), fork_slot);
let sync_duties = client
.post_validator_duties_sync(fork_epoch, &all_validators_u64)
.await
.unwrap()
.data;
assert_eq!(sync_duties.len(), E::sync_committee_size());
// After applying a block at the fork slot the duties should remain unchanged.
let state_root = state.canonical_root();
harness
.add_attested_block_at_slot(fork_slot, state, state_root, &all_validators)
.unwrap();
assert_eq!(
client
.post_validator_duties_sync(fork_epoch, &all_validators_u64)
.await
.unwrap()
.data,
sync_duties
);
// Sync duties should also be available for the next period.
let current_period = fork_epoch.sync_committee_period(&spec).unwrap();
let next_period_epoch = spec.epochs_per_sync_committee_period * (current_period + 1);
let next_period_duties = client
.post_validator_duties_sync(next_period_epoch, &all_validators_u64)
.await
.unwrap()
.data;
assert_eq!(next_period_duties.len(), E::sync_committee_size());
// Sync duties should *not* be available for the period after the next period.
// We expect a 400 (bad request) response.
let next_next_period_epoch = spec.epochs_per_sync_committee_period * (current_period + 2);
assert_eq!(
client
.post_validator_duties_sync(next_next_period_epoch, &all_validators_u64)
.await
.unwrap_err()
.status()
.unwrap(),
400
);
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn attestations_across_fork_with_skip_slots() {
let validator_count = E::sync_committee_size();
let fork_epoch = Epoch::new(8);
let spec = altair_spec(fork_epoch);
let tester = InteractiveTester::<E>::new(Some(spec.clone()), validator_count);
let harness = &tester.harness;
let client = &tester.client;
let all_validators = harness.get_all_validators();
let fork_slot = fork_epoch.start_slot(E::slots_per_epoch());
let fork_state = harness
.chain
.state_at_slot(fork_slot, StateSkipConfig::WithStateRoots)
.unwrap();
harness.set_current_slot(fork_slot);
let attestations = harness.make_attestations(
&all_validators,
&fork_state,
fork_state.canonical_root(),
(*fork_state.get_block_root(fork_slot - 1).unwrap()).into(),
fork_slot,
);
let unaggregated_attestations = attestations
.iter()
.flat_map(|(atts, _)| atts.iter().map(|(att, _)| att.clone()))
.collect::<Vec<_>>();
assert!(!unaggregated_attestations.is_empty());
client
.post_beacon_pool_attestations(&unaggregated_attestations)
.await
.unwrap();
let signed_aggregates = attestations
.into_iter()
.filter_map(|(_, op_aggregate)| op_aggregate)
.collect::<Vec<_>>();
assert!(!signed_aggregates.is_empty());
client
.post_validator_aggregate_and_proof(&signed_aggregates)
.await
.unwrap();
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn sync_contributions_across_fork_with_skip_slots() {
let validator_count = E::sync_committee_size();
let fork_epoch = Epoch::new(8);
let spec = altair_spec(fork_epoch);
let tester = InteractiveTester::<E>::new(Some(spec.clone()), validator_count);
let harness = &tester.harness;
let client = &tester.client;
let fork_slot = fork_epoch.start_slot(E::slots_per_epoch());
let fork_state = harness
.chain
.state_at_slot(fork_slot, StateSkipConfig::WithStateRoots)
.unwrap();
harness.set_current_slot(fork_slot);
let sync_messages = harness.make_sync_contributions(
&fork_state,
*fork_state.get_block_root(fork_slot - 1).unwrap(),
fork_slot,
RelativeSyncCommittee::Current,
);
let sync_committee_messages = sync_messages
.iter()
.flat_map(|(messages, _)| messages.iter().map(|(message, _subnet)| message.clone()))
.collect::<Vec<_>>();
assert!(!sync_committee_messages.is_empty());
client
.post_beacon_pool_sync_committee_signatures(&sync_committee_messages)
.await
.unwrap();
let signed_contributions = sync_messages
.into_iter()
.filter_map(|(_, op_aggregate)| op_aggregate)
.collect::<Vec<_>>();
assert!(!signed_contributions.is_empty());
client
.post_validator_contribution_and_proofs(&signed_contributions)
.await
.unwrap();
}
#[tokio::test(flavor = "multi_thread", worker_threads = 2)]
async fn sync_committee_indices_across_fork() {
let validator_count = E::sync_committee_size();
let fork_epoch = Epoch::new(8);
let spec = altair_spec(fork_epoch);
let tester = InteractiveTester::<E>::new(Some(spec.clone()), validator_count);
let harness = &tester.harness;
let client = &tester.client;
let all_validators = harness.get_all_validators();
// Flatten subcommittees into a single vec.
let flatten = |subcommittees: &[SyncSubcommittee]| -> Vec<u64> {
subcommittees
.iter()
.flat_map(|sub| sub.indices.iter().copied())
.collect()
};
// Prior to the fork the `sync_committees` endpoint should return a 400 error.
assert_eq!(
client
.get_beacon_states_sync_committees(StateId::Slot(Slot::new(0)), None)
.await
.unwrap_err()
.status()
.unwrap(),
400
);
assert_eq!(
client
.get_beacon_states_sync_committees(StateId::Head, Some(Epoch::new(0)))
.await
.unwrap_err()
.status()
.unwrap(),
400
);
// If there's a skip slot at the fork slot, the endpoint will return a 400 until a block is
// applied.
let fork_slot = fork_epoch.start_slot(E::slots_per_epoch());
let (genesis_state, genesis_state_root) = harness.get_current_state_and_root();
let (_, state) = harness
.add_attested_block_at_slot(
fork_slot - 1,
genesis_state,
genesis_state_root,
&all_validators,
)
.unwrap();
harness.advance_slot();
assert_eq!(harness.get_current_slot(), fork_slot);
// Using the head state must fail.
assert_eq!(
client
.get_beacon_states_sync_committees(StateId::Head, Some(fork_epoch))
.await
.unwrap_err()
.status()
.unwrap(),
400
);
// In theory we could do a state advance and make this work, but to keep things simple I've
// avoided doing that for now.
assert_eq!(
client
.get_beacon_states_sync_committees(StateId::Slot(fork_slot), None)
.await
.unwrap_err()
.status()
.unwrap(),
400
);
// Once the head is updated it should be useable for requests, including in the next sync
// committee period.
let state_root = state.canonical_root();
harness
.add_attested_block_at_slot(fork_slot + 1, state, state_root, &all_validators)
.unwrap();
let current_period = fork_epoch.sync_committee_period(&spec).unwrap();
let next_period_epoch = spec.epochs_per_sync_committee_period * (current_period + 1);
assert!(next_period_epoch > fork_epoch);
for epoch in [
None,
Some(fork_epoch),
Some(fork_epoch + 1),
Some(next_period_epoch),
Some(next_period_epoch + 1),
] {
let committee = client
.get_beacon_states_sync_committees(StateId::Head, epoch)
.await
.unwrap()
.data;
assert_eq!(committee.validators.len(), E::sync_committee_size());
assert_eq!(
committee.validators,
flatten(&committee.validator_aggregates)
);
}
}