lighthouse/beacon_node/beacon_chain/tests/rewards.rs
2023-02-10 15:35:00 +01:00

123 lines
3.6 KiB
Rust

#![cfg(test)]
use std::collections::HashMap;
use beacon_chain::test_utils::{
generate_deterministic_keypairs, BeaconChainHarness,
EphemeralTestingSlotClockHarnessType as HarnessType,
};
use beacon_chain::{
test_utils::{AttestationStrategy, BlockStrategy, RelativeSyncCommittee},
types::{Epoch, EthSpec, Keypair, MinimalEthSpec},
};
use lazy_static::lazy_static;
pub const VALIDATOR_COUNT: usize = 64;
lazy_static! {
static ref KEYPAIRS: Vec<Keypair> = generate_deterministic_keypairs(VALIDATOR_COUNT);
}
fn get_harness<E: EthSpec>() -> BeaconChainHarness<HarnessType<E>> {
let mut spec = E::default_spec();
spec.altair_fork_epoch = Some(Epoch::new(0)); // We use altair for all tests
let harness = BeaconChainHarness::builder(E::default())
.spec(spec)
.keypairs(KEYPAIRS.to_vec())
.fresh_ephemeral_store()
.build();
harness.advance_slot();
harness
}
#[tokio::test]
async fn test_sync_committee_rewards() {
let num_block_produced = MinimalEthSpec::slots_per_epoch();
let harness = get_harness::<MinimalEthSpec>();
let latest_block_root = harness
.extend_chain(
num_block_produced as usize,
BlockStrategy::OnCanonicalHead,
AttestationStrategy::AllValidators,
)
.await;
// Create and add sync committee message to op_pool
let sync_contributions = harness.make_sync_contributions(
&harness.get_current_state(),
latest_block_root,
harness.get_current_slot(),
RelativeSyncCommittee::Current,
);
harness
.process_sync_contributions(sync_contributions)
.unwrap();
// Add block
let chain = &harness.chain;
let (head_state, head_state_root) = harness.get_current_state_and_root();
let target_slot = harness.get_current_slot() + 1;
let (block_root, mut state) = harness
.add_attested_block_at_slot(target_slot, head_state, head_state_root, &[])
.await
.unwrap();
let block = harness.get_block(block_root).unwrap();
let parent_block = chain
.get_blinded_block(&block.parent_root())
.unwrap()
.unwrap();
let parent_state = chain
.get_state(&parent_block.state_root(), Some(parent_block.slot()))
.unwrap()
.unwrap();
let reward_payload = chain
.compute_sync_committee_rewards(block.message(), &mut state)
.unwrap();
let rewards = reward_payload
.iter()
.map(|reward| (reward.validator_index, reward.reward))
.collect::<HashMap<_, _>>();
let proposer_index = state
.get_beacon_proposer_index(target_slot, &MinimalEthSpec::default_spec())
.unwrap();
let mut mismatches = vec![];
for validator in state.validators() {
let validator_index = state
.clone()
.get_validator_index(&validator.pubkey)
.unwrap()
.unwrap();
let pre_state_balance = parent_state.balances()[validator_index];
let post_state_balance = state.balances()[validator_index];
let sync_committee_reward = rewards.get(&(validator_index as u64)).unwrap_or(&0);
if validator_index == proposer_index {
continue; // Ignore proposer
}
if pre_state_balance as i64 + *sync_committee_reward != post_state_balance as i64 {
mismatches.push(validator_index.to_string());
}
}
assert_eq!(
mismatches.len(),
0,
"Expect 0 mismatches, but these validators have mismatches on balance: {} ",
mismatches.join(",")
);
}