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Implement weak subjectivity safety checks (#7347)

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Closes #7273


  https://github.com/ethereum/consensus-specs/pull/4179


Co-Authored-By: Eitan Seri-Levi <eserilev@ucsc.edu>

Co-Authored-By: Eitan Seri- Levi <eserilev@gmail.com>

Co-Authored-By: Michael Sproul <michaelsproul@users.noreply.github.com>

Co-Authored-By: dapplion <35266934+dapplion@users.noreply.github.com>
This commit is contained in:
Eitan Seri-Levi
2026-02-10 13:52:52 -08:00
committed by GitHub
parent a1176e77be
commit 56eb81a5e0
12 changed files with 222 additions and 15 deletions
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49
beacon_node/beacon_chain/tests/tests.rs
View File

@@ -15,7 +15,8 @@ use state_processing::EpochProcessingError;
use state_processing::{per_slot_processing, per_slot_processing::Error as SlotProcessingError};
use std::sync::LazyLock;
use types::{
BeaconState, BeaconStateError, BlockImportSource, Checkpoint, EthSpec, Hash256, MinimalEthSpec,
BeaconState, BeaconStateError, BlockImportSource, ChainSpec, Checkpoint,
DEFAULT_PRE_ELECTRA_WS_PERIOD, EthSpec, ForkName, Hash256, MainnetEthSpec, MinimalEthSpec,
RelativeEpoch, Slot,
};
@@ -38,6 +39,27 @@ fn get_harness(validator_count: usize) -> BeaconChainHarness<EphemeralHarnessTyp
)
}
fn get_harness_with_spec(
validator_count: usize,
spec: &ChainSpec,
) -> BeaconChainHarness<EphemeralHarnessType<MainnetEthSpec>> {
let chain_config = ChainConfig {
reconstruct_historic_states: true,
..Default::default()
};
let harness = BeaconChainHarness::builder(MainnetEthSpec)
.spec(spec.clone().into())
.chain_config(chain_config)
.keypairs(KEYPAIRS[0..validator_count].to_vec())
.fresh_ephemeral_store()
.mock_execution_layer()
.build();
harness.advance_slot();
harness
}
fn get_harness_with_config(
validator_count: usize,
chain_config: ChainConfig,
@@ -1083,3 +1105,28 @@ async fn pseudo_finalize_with_lagging_split_update() {
let expect_true_migration = false;
pseudo_finalize_test_generic(epochs_per_migration, expect_true_migration).await;
}
#[tokio::test]
async fn test_compute_weak_subjectivity_period() {
type E = MainnetEthSpec;
let expected_ws_period_pre_electra = DEFAULT_PRE_ELECTRA_WS_PERIOD;
let expected_ws_period_post_electra = 256;
// test Base variant
let spec = ForkName::Altair.make_genesis_spec(E::default_spec());
let harness = get_harness_with_spec(VALIDATOR_COUNT, &spec);
let head_state = harness.get_current_state();
let calculated_ws_period = head_state.compute_weak_subjectivity_period(&spec).unwrap();
assert_eq!(calculated_ws_period, expected_ws_period_pre_electra);
// test Electra variant
let spec = ForkName::Electra.make_genesis_spec(E::default_spec());
let harness = get_harness_with_spec(VALIDATOR_COUNT, &spec);
let head_state = harness.get_current_state();
let calculated_ws_period = head_state.compute_weak_subjectivity_period(&spec).unwrap();
assert_eq!(calculated_ws_period, expected_ws_period_post_electra);
}