nimbus-eth2/tests/test_gossip_validation.nim

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# beacon_chain
# Copyright (c) 2018-2021 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.used.}
import
# Status lib
unittest2,
chronicles, chronos,
eth/keys,
# Internal
../beacon_chain/[beacon_node_types, extras, beacon_clock],
../beacon_chain/gossip_processing/[gossip_validation, batch_validation],
../beacon_chain/fork_choice/[fork_choice_types, fork_choice],
../beacon_chain/consensus_object_pools/[
block_quarantine, blockchain_dag, block_clearance, attestation_pool],
../beacon_chain/ssz/merkleization,
../beacon_chain/spec/[crypto, datatypes, digest, validator, state_transition,
helpers, presets, network],
# Test utilities
./testutil, ./testdbutil, ./testblockutil
proc pruneAtFinalization(dag: ChainDAGRef, attPool: AttestationPool) =
if dag.needStateCachesAndForkChoicePruning():
dag.pruneStateCachesDAG()
# pool[].prune() # We test logic without att_1_0 pool / fork choice pruning
suite "Gossip validation " & preset():
setup:
# Genesis state that results in 3 members per committee
var
chainDag = init(ChainDAGRef, defaultRuntimePreset, makeTestDB(SLOTS_PER_EPOCH * 3))
quarantine = QuarantineRef.init(keys.newRng())
pool = newClone(AttestationPool.init(chainDag, quarantine))
state = newClone(chainDag.headState)
cache = StateCache()
rewards = RewardInfo()
batchCrypto = BatchCrypto.new(keys.newRng(), eager = proc(): bool = false)
# Slot 0 is a finalized slot - won't be making attestations for it..
check:
process_slots(state.data, getStateField(state, slot) + 1, cache, rewards)
test "Validation sanity":
# TODO: refactor tests to avoid skipping BLS validation
chainDag.updateFlags.incl {skipBLSValidation}
var
cache: StateCache
for blck in makeTestBlocks(
chainDag.headState.data, chainDag.head.root, cache,
int(SLOTS_PER_EPOCH * 5), false):
let added = chainDag.addRawBlock(quarantine, blck) do (
blckRef: BlockRef, signedBlock: TrustedSignedBeaconBlock,
epochRef: EpochRef, state: HashedBeaconState):
# Callback add to fork choice if valid
pool[].addForkChoice(epochRef, blckRef, signedBlock.message, blckRef.slot)
check: added.isOk()
chainDag.updateHead(added[], quarantine)
pruneAtFinalization(chainDag, pool[])
var
# Create attestations for slot 1
beacon_committee = get_beacon_committee(
chainDag.headState.data.data, chainDag.head.slot, 0.CommitteeIndex, cache)
att_1_0 = makeAttestation(
chainDag.headState.data.data, chainDag.head.root, beacon_committee[0], cache)
att_1_1 = makeAttestation(
chainDag.headState.data.data, chainDag.head.root, beacon_committee[1], cache)
committees_per_slot =
get_committee_count_per_slot(chainDag.headState.data.data,
att_1_0.data.slot.epoch, cache)
subnet = compute_subnet_for_attestation(
committees_per_slot,
att_1_0.data.slot, att_1_0.data.index.CommitteeIndex)
beaconTime = att_1_0.data.slot.toBeaconTime()
check:
validateAttestation(pool, batchCrypto, att_1_0, beaconTime, subnet, true).waitFor().isOk
# Same validator again
validateAttestation(pool, batchCrypto, att_1_0, beaconTime, subnet, true).waitFor().error()[0] ==
ValidationResult.Ignore
pool[].nextAttestationEpoch.setLen(0) # reset for test
check:
# Wrong subnet
validateAttestation(
pool, batchCrypto, att_1_0, beaconTime, SubnetId(subnet.uint8 + 1), true).waitFor().isErr
pool[].nextAttestationEpoch.setLen(0) # reset for test
check:
# Too far in the future
validateAttestation(
pool, batchCrypto, att_1_0, beaconTime - 1.seconds, subnet, true).waitFor().isErr
pool[].nextAttestationEpoch.setLen(0) # reset for test
check:
# Too far in the past
validateAttestation(
pool, batchCrypto, att_1_0,
beaconTime - (SECONDS_PER_SLOT * SLOTS_PER_EPOCH - 1).int.seconds,
subnet, true).waitFor().isErr
block:
var broken = att_1_0
broken.signature.blob[0] += 1
pool[].nextAttestationEpoch.setLen(0) # reset for test
check:
# Invalid signature
validateAttestation(
pool, batchCrypto, broken, beaconTime, subnet, true).waitFor().
error()[0] == ValidationResult.Reject
block:
var broken = att_1_0
broken.signature.blob[5] += 1
pool[].nextAttestationEpoch.setLen(0) # reset for test
# One invalid, one valid (batched)
let
fut_1_0 = validateAttestation(
pool, batchCrypto, broken, beaconTime, subnet, true)
fut_1_1 = validateAttestation(
pool, batchCrypto, att_1_1, beaconTime, subnet, true)
check:
fut_1_0.waitFor().error()[0] == ValidationResult.Reject
fut_1_1.waitFor().isOk()
block:
var broken = att_1_0
# This shouldn't deserialize, which is a different way to break it
broken.signature.blob = default(type broken.signature.blob)
pool[].nextAttestationEpoch.setLen(0) # reset for test
# One invalid, one valid (batched)
let
fut_1_0 = validateAttestation(
pool, batchCrypto, broken, beaconTime, subnet, true)
fut_1_1 = validateAttestation(
pool, batchCrypto, att_1_1, beaconTime, subnet, true)
check:
fut_1_0.waitFor().error()[0] == ValidationResult.Reject
fut_1_1.waitFor().isOk()