624 lines
23 KiB
Nim
624 lines
23 KiB
Nim
# beacon_chain
|
|
# Copyright (c) 2018-2022 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
|
|
std/sequtils,
|
|
# Status lib
|
|
unittest2,
|
|
chronicles, chronos,
|
|
stew/byteutils,
|
|
eth/keys, taskpools,
|
|
# Internal
|
|
../beacon_chain/gossip_processing/[gossip_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/spec/datatypes/phase0,
|
|
../beacon_chain/spec/[beaconstate, helpers, state_transition, validator],
|
|
../beacon_chain/beacon_clock,
|
|
# Test utilities
|
|
./testutil, ./testdbutil, ./testblockutil
|
|
|
|
func combine(tgt: var Attestation, src: Attestation) =
|
|
## Combine the signature and participation bitfield, with the assumption that
|
|
## the same data is being signed - if the signatures overlap, they are not
|
|
## combined.
|
|
|
|
doAssert tgt.data == src.data
|
|
|
|
# In a BLS aggregate signature, one needs to count how many times a
|
|
# particular public key has been added - since we use a single bit per key, we
|
|
# can only it once, thus we can never combine signatures that overlap already!
|
|
doAssert not tgt.aggregation_bits.overlaps(src.aggregation_bits)
|
|
|
|
tgt.aggregation_bits.incl(src.aggregation_bits)
|
|
|
|
var agg {.noinit.}: AggregateSignature
|
|
agg.init(tgt.signature.load().get())
|
|
agg.aggregate(src.signature.load.get())
|
|
tgt.signature = agg.finish().toValidatorSig()
|
|
|
|
func loadSig(a: Attestation): CookedSig =
|
|
a.signature.load.get()
|
|
|
|
proc pruneAtFinalization(dag: ChainDAGRef, attPool: AttestationPool) =
|
|
if dag.needStateCachesAndForkChoicePruning():
|
|
dag.pruneStateCachesDAG()
|
|
# pool[].prune() # We test logic without attestation pool / fork choice pruning
|
|
|
|
suite "Attestation pool processing" & preset():
|
|
## For now just test that we can compile and execute block processing with
|
|
## mock data.
|
|
|
|
setup:
|
|
# Genesis state that results in 6 members per committee
|
|
var
|
|
validatorMonitor = newClone(ValidatorMonitor.init())
|
|
dag = init(
|
|
ChainDAGRef, defaultRuntimeConfig, makeTestDB(SLOTS_PER_EPOCH * 6),
|
|
validatorMonitor, {})
|
|
taskpool = Taskpool.new()
|
|
verifier = BatchVerifier(rng: keys.newRng(), taskpool: taskpool)
|
|
quarantine = newClone(Quarantine.init())
|
|
pool = newClone(AttestationPool.init(dag, quarantine))
|
|
state = newClone(dag.headState)
|
|
cache = StateCache()
|
|
info = ForkedEpochInfo()
|
|
# Slot 0 is a finalized slot - won't be making attestations for it..
|
|
check:
|
|
process_slots(
|
|
dag.cfg, state[], getStateField(state[], slot) + 1, cache, info,
|
|
{}).isOk()
|
|
|
|
test "Can add and retrieve simple attestations" & preset():
|
|
let
|
|
# Create an attestation for slot 1!
|
|
bc0 = get_beacon_committee(
|
|
state[], getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
attestation = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[0], cache)
|
|
|
|
pool[].addAttestation(
|
|
attestation, @[bc0[0]], attestation.loadSig,
|
|
attestation.data.slot.start_beacon_time)
|
|
|
|
check:
|
|
# Added attestation, should get it back
|
|
toSeq(pool[].attestations(Opt.none(Slot), Opt.none(CommitteeIndex))) ==
|
|
@[attestation]
|
|
toSeq(pool[].attestations(
|
|
Opt.some(attestation.data.slot), Opt.none(CommitteeIndex))) ==
|
|
@[attestation]
|
|
toSeq(pool[].attestations(
|
|
Opt.some(attestation.data.slot), Opt.some(attestation.data.index.CommitteeIndex))) ==
|
|
@[attestation]
|
|
toSeq(pool[].attestations(Opt.none(Slot), Opt.some(attestation.data.index.CommitteeIndex))) ==
|
|
@[attestation]
|
|
toSeq(pool[].attestations(Opt.some(
|
|
attestation.data.slot + 1), Opt.none(CommitteeIndex))) == []
|
|
toSeq(pool[].attestations(
|
|
Opt.none(Slot), Opt.some(CommitteeIndex(attestation.data.index + 1)))) == []
|
|
|
|
process_slots(
|
|
defaultRuntimeConfig, state[],
|
|
getStateField(state[], slot) + MIN_ATTESTATION_INCLUSION_DELAY, cache,
|
|
info, {}).isOk()
|
|
|
|
let attestations = pool[].getAttestationsForBlock(state[], cache)
|
|
|
|
check:
|
|
attestations.len == 1
|
|
pool[].getAggregatedAttestation(1.Slot, 0.CommitteeIndex).isSome()
|
|
|
|
let
|
|
root1 = addTestBlock(
|
|
state[], cache, attestations = attestations,
|
|
nextSlot = false).phase0Data.root
|
|
bc1 = get_beacon_committee(
|
|
state[], getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
att1 = makeAttestation(state[], root1, bc1[0], cache)
|
|
|
|
check:
|
|
withState(state[]): state.latest_block_root == root1
|
|
|
|
process_slots(
|
|
defaultRuntimeConfig, state[],
|
|
getStateField(state[], slot) + MIN_ATTESTATION_INCLUSION_DELAY, cache,
|
|
info, {}).isOk()
|
|
|
|
withState(state[]): state.latest_block_root == root1
|
|
|
|
check:
|
|
# shouldn't include already-included attestations
|
|
pool[].getAttestationsForBlock(state[], cache) == []
|
|
|
|
pool[].addAttestation(
|
|
att1, @[bc1[0]], att1.loadSig, att1.data.slot.start_beacon_time)
|
|
|
|
check:
|
|
# but new ones should go in
|
|
pool[].getAttestationsForBlock(state[], cache).len() == 1
|
|
|
|
let
|
|
att2 = makeAttestation(state[], root1, bc1[1], cache)
|
|
pool[].addAttestation(
|
|
att2, @[bc1[1]], att2.loadSig, att2.data.slot.start_beacon_time)
|
|
|
|
let
|
|
combined = pool[].getAttestationsForBlock(state[], cache)
|
|
|
|
check:
|
|
# New attestations should be combined with old attestations
|
|
combined.len() == 1
|
|
combined[0].aggregation_bits.countOnes() == 2
|
|
|
|
pool[].addAttestation(
|
|
combined[0], @[bc1[1], bc1[0]], combined[0].loadSig,
|
|
combined[0].data.slot.start_beacon_time)
|
|
|
|
check:
|
|
# readding the combined attestation shouldn't have an effect
|
|
pool[].getAttestationsForBlock(state[], cache).len() == 1
|
|
|
|
let
|
|
# Someone votes for a different root
|
|
att3 = makeAttestation(state[], ZERO_HASH, bc1[2], cache)
|
|
pool[].addAttestation(
|
|
att3, @[bc1[2]], att3.loadSig, att3.data.slot.start_beacon_time)
|
|
|
|
check:
|
|
# We should now get both attestations for the block, but the aggregate
|
|
# should be the one with the most votes
|
|
pool[].getAttestationsForBlock(state[], cache).len() == 2
|
|
pool[].getAggregatedAttestation(2.Slot, 0.CommitteeIndex).
|
|
get().aggregation_bits.countOnes() == 2
|
|
pool[].getAggregatedAttestation(2.Slot, hash_tree_root(att2.data)).
|
|
get().aggregation_bits.countOnes() == 2
|
|
|
|
let
|
|
# Someone votes for a different root
|
|
att4 = makeAttestation(state[], ZERO_HASH, bc1[2], cache)
|
|
pool[].addAttestation(
|
|
att4, @[bc1[2]], att3.loadSig, att3.data.slot.start_beacon_time)
|
|
|
|
test "Working with aggregates" & preset():
|
|
let
|
|
# Create an attestation for slot 1!
|
|
bc0 = get_beacon_committee(
|
|
state[], getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
|
|
var
|
|
att0 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[0], cache)
|
|
att0x = att0
|
|
att1 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[1], cache)
|
|
att2 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[2], cache)
|
|
att3 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[3], cache)
|
|
|
|
# Both attestations include member 2 but neither is a subset of the other
|
|
att0.combine(att2)
|
|
att1.combine(att2)
|
|
|
|
check:
|
|
not pool[].covers(att0.data, att0.aggregation_bits)
|
|
|
|
pool[].addAttestation(
|
|
att0, @[bc0[0], bc0[2]], att0.loadSig, att0.data.slot.start_beacon_time)
|
|
pool[].addAttestation(
|
|
att1, @[bc0[1], bc0[2]], att1.loadSig, att1.data.slot.start_beacon_time)
|
|
|
|
check:
|
|
process_slots(
|
|
defaultRuntimeConfig, state[],
|
|
getStateField(state[], slot) + MIN_ATTESTATION_INCLUSION_DELAY, cache,
|
|
info, {}).isOk()
|
|
|
|
check:
|
|
pool[].covers(att0.data, att0.aggregation_bits)
|
|
pool[].getAttestationsForBlock(state[], cache).len() == 2
|
|
# Can get either aggregate here, random!
|
|
pool[].getAggregatedAttestation(1.Slot, 0.CommitteeIndex).isSome()
|
|
|
|
# Add in attestation 3 - both aggregates should now have it added
|
|
pool[].addAttestation(
|
|
att3, @[bc0[3]], att3.loadSig, att3.data.slot.start_beacon_time)
|
|
|
|
block:
|
|
let attestations = pool[].getAttestationsForBlock(state[], cache)
|
|
check:
|
|
attestations.len() == 2
|
|
attestations[0].aggregation_bits.countOnes() == 3
|
|
# Can get either aggregate here, random!
|
|
pool[].getAggregatedAttestation(1.Slot, 0.CommitteeIndex).isSome()
|
|
|
|
# Add in attestation 0 as single - attestation 1 is now a superset of the
|
|
# aggregates in the pool, so everything else should be removed
|
|
pool[].addAttestation(
|
|
att0x, @[bc0[0]], att0x.loadSig, att0x.data.slot.start_beacon_time)
|
|
|
|
block:
|
|
let attestations = pool[].getAttestationsForBlock(state[], cache)
|
|
check:
|
|
attestations.len() == 1
|
|
attestations[0].aggregation_bits.countOnes() == 4
|
|
pool[].getAggregatedAttestation(1.Slot, 0.CommitteeIndex).isSome()
|
|
|
|
test "Everyone voting for something different" & preset():
|
|
var attestations: int
|
|
for i in 0..<SLOTS_PER_EPOCH:
|
|
var root: Eth2Digest
|
|
root.data[0..<8] = toBytesBE(i.uint64)
|
|
let
|
|
bc0 = get_beacon_committee(
|
|
state[], getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
|
|
for j in 0..<bc0.len():
|
|
root.data[8..<16] = toBytesBE(j.uint64)
|
|
let att = makeAttestation(state[], root, bc0[j], cache)
|
|
pool[].addAttestation(
|
|
att, @[bc0[j]], att.loadSig, att.data.slot.start_beacon_time)
|
|
inc attestations
|
|
|
|
check:
|
|
process_slots(
|
|
defaultRuntimeConfig, state[],
|
|
getStateField(state[], slot) + 1, cache, info, {}).isOk()
|
|
|
|
doAssert attestations.uint64 > MAX_ATTESTATIONS,
|
|
"6*SLOTS_PER_EPOCH validators > 128 mainnet MAX_ATTESTATIONS"
|
|
check:
|
|
# Fill block with attestations
|
|
pool[].getAttestationsForBlock(state[], cache).lenu64() ==
|
|
MAX_ATTESTATIONS
|
|
pool[].getAggregatedAttestation(
|
|
getStateField(state[], slot) - 1, 0.CommitteeIndex).isSome()
|
|
|
|
test "Attestations may arrive in any order" & preset():
|
|
var cache = StateCache()
|
|
let
|
|
# Create an attestation for slot 1!
|
|
bc0 = get_beacon_committee(
|
|
state[], getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
attestation0 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[0], cache)
|
|
|
|
check:
|
|
process_slots(
|
|
defaultRuntimeConfig, state[], getStateField(state[], slot) + 1,
|
|
cache, info, {}).isOk()
|
|
|
|
let
|
|
bc1 = get_beacon_committee(state[],
|
|
getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
attestation1 = makeAttestation(
|
|
state[], state[].latest_block_root, bc1[0], cache)
|
|
|
|
# test reverse order
|
|
pool[].addAttestation(
|
|
attestation1, @[bc1[0]], attestation1.loadSig,
|
|
attestation1.data.slot.start_beacon_time)
|
|
pool[].addAttestation(
|
|
attestation0, @[bc0[0]], attestation0.loadSig,
|
|
attestation0.data.slot.start_beacon_time)
|
|
|
|
let attestations = pool[].getAttestationsForBlock(state[], cache)
|
|
|
|
check:
|
|
attestations.len == 1
|
|
|
|
test "Attestations should be combined" & preset():
|
|
var cache = StateCache()
|
|
let
|
|
# Create an attestation for slot 1!
|
|
bc0 = get_beacon_committee(
|
|
state[], getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
attestation0 =
|
|
makeAttestation(state[], state[].latest_block_root, bc0[0], cache)
|
|
attestation1 =
|
|
makeAttestation(state[], state[].latest_block_root, bc0[1], cache)
|
|
|
|
pool[].addAttestation(
|
|
attestation0, @[bc0[0]], attestation0.loadSig,
|
|
attestation0.data.slot.start_beacon_time)
|
|
pool[].addAttestation(
|
|
attestation1, @[bc0[1]], attestation1.loadSig,
|
|
attestation1.data.slot.start_beacon_time)
|
|
|
|
check:
|
|
process_slots(
|
|
defaultRuntimeConfig, state[],
|
|
MIN_ATTESTATION_INCLUSION_DELAY.Slot + 1, cache, info, {}).isOk()
|
|
|
|
let attestations = pool[].getAttestationsForBlock(state[], cache)
|
|
|
|
check:
|
|
attestations.len == 1
|
|
|
|
test "Attestations may overlap, bigger first" & preset():
|
|
var cache = StateCache()
|
|
|
|
var
|
|
# Create an attestation for slot 1!
|
|
bc0 = get_beacon_committee(
|
|
state[], getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
attestation0 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[0], cache)
|
|
attestation1 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[1], cache)
|
|
|
|
attestation0.combine(attestation1)
|
|
|
|
pool[].addAttestation(
|
|
attestation0, @[bc0[0]], attestation0.loadSig,
|
|
attestation0.data.slot.start_beacon_time)
|
|
pool[].addAttestation(
|
|
attestation1, @[bc0[1]], attestation1.loadSig,
|
|
attestation1.data.slot.start_beacon_time)
|
|
|
|
check:
|
|
process_slots(
|
|
defaultRuntimeConfig, state[],
|
|
MIN_ATTESTATION_INCLUSION_DELAY.Slot + 1, cache, info, {}).isOk()
|
|
|
|
let attestations = pool[].getAttestationsForBlock(state[], cache)
|
|
|
|
check:
|
|
attestations.len == 1
|
|
|
|
test "Attestations may overlap, smaller first" & preset():
|
|
var cache = StateCache()
|
|
var
|
|
# Create an attestation for slot 1!
|
|
bc0 = get_beacon_committee(state[],
|
|
getStateField(state[], slot), 0.CommitteeIndex, cache)
|
|
attestation0 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[0], cache)
|
|
attestation1 = makeAttestation(
|
|
state[], state[].latest_block_root, bc0[1], cache)
|
|
|
|
attestation0.combine(attestation1)
|
|
|
|
pool[].addAttestation(
|
|
attestation1, @[bc0[1]], attestation1.loadSig,
|
|
attestation1.data.slot.start_beacon_time)
|
|
pool[].addAttestation(
|
|
attestation0, @[bc0[0]], attestation0.loadSig,
|
|
attestation0.data.slot.start_beacon_time)
|
|
|
|
check:
|
|
process_slots(
|
|
defaultRuntimeConfig, state[],
|
|
MIN_ATTESTATION_INCLUSION_DELAY.Slot + 1, cache, info, {}).isOk()
|
|
|
|
let attestations = pool[].getAttestationsForBlock(state[], cache)
|
|
|
|
check:
|
|
attestations.len == 1
|
|
|
|
test "Fork choice returns latest block with no attestations":
|
|
var cache = StateCache()
|
|
let
|
|
b1 = addTestBlock(state[], cache).phase0Data
|
|
b1Add = dag.addHeadBlock(verifier, b1) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
let head = pool[].selectOptimisticHead(b1Add[].slot.start_beacon_time).get()
|
|
check:
|
|
head == b1Add[]
|
|
|
|
let
|
|
b2 = addTestBlock(state[], cache).phase0Data
|
|
b2Add = dag.addHeadBlock(verifier, b2) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
let head2 = pool[].selectOptimisticHead(b2Add[].slot.start_beacon_time).get()
|
|
|
|
check:
|
|
head2 == b2Add[]
|
|
|
|
test "Fork choice returns block with attestation":
|
|
var cache = StateCache()
|
|
let
|
|
b10 = makeTestBlock(state[], cache).phase0Data
|
|
b10Add = dag.addHeadBlock(verifier, b10) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
let head = pool[].selectOptimisticHead(b10Add[].slot.start_beacon_time).get()
|
|
|
|
check:
|
|
head == b10Add[]
|
|
|
|
# Add a block too late to be timely enough to be proposer-boosted, which
|
|
# would otherwise cause it to be selected as head
|
|
let
|
|
b11 = makeTestBlock(state[], cache,
|
|
graffiti = GraffitiBytes [1'u8, 0, 0, 0 ,0 ,0 ,0 ,0 ,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
|
|
).phase0Data
|
|
b11Add = dag.addHeadBlock(verifier, b11) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time + SECONDS_PER_SLOT.int64.seconds)
|
|
|
|
bc1 = get_beacon_committee(
|
|
state[], getStateField(state[], slot) - 1, 1.CommitteeIndex,
|
|
cache)
|
|
attestation0 = makeAttestation(state[], b10.root, bc1[0], cache)
|
|
|
|
pool[].addAttestation(
|
|
attestation0, @[bc1[0]], attestation0.loadSig,
|
|
attestation0.data.slot.start_beacon_time)
|
|
|
|
let head2 = pool[].selectOptimisticHead(b10Add[].slot.start_beacon_time).get()
|
|
|
|
check:
|
|
# Single vote for b10 and no votes for b11
|
|
head2 == b10Add[]
|
|
|
|
let
|
|
attestation1 = makeAttestation(state[], b11.root, bc1[1], cache)
|
|
attestation2 = makeAttestation(state[], b11.root, bc1[2], cache)
|
|
pool[].addAttestation(
|
|
attestation1, @[bc1[1]], attestation1.loadSig,
|
|
attestation1.data.slot.start_beacon_time)
|
|
|
|
let head3 = pool[].selectOptimisticHead(b10Add[].slot.start_beacon_time).get()
|
|
let bigger = if b11.root.data < b10.root.data: b10Add else: b11Add
|
|
|
|
check:
|
|
# Ties broken lexicographically in spec -> ?
|
|
head3 == bigger[]
|
|
|
|
pool[].addAttestation(
|
|
attestation2, @[bc1[2]], attestation2.loadSig,
|
|
attestation2.data.slot.start_beacon_time)
|
|
|
|
let head4 = pool[].selectOptimisticHead(b11Add[].slot.start_beacon_time).get()
|
|
|
|
check:
|
|
# Two votes for b11
|
|
head4 == b11Add[]
|
|
|
|
test "Trying to add a block twice tags the second as an error":
|
|
var cache = StateCache()
|
|
let
|
|
b10 = makeTestBlock(state[], cache).phase0Data
|
|
b10Add = dag.addHeadBlock(verifier, b10) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
let head = pool[].selectOptimisticHead(b10Add[].slot.start_beacon_time).get()
|
|
|
|
check:
|
|
head == b10Add[]
|
|
|
|
# -------------------------------------------------------------
|
|
# Add back the old block to ensure we have a duplicate error
|
|
let b10_clone = b10 # Assumes deep copy
|
|
let b10Add_clone = dag.addHeadBlock(verifier, b10_clone) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
doAssert: b10Add_clone.error == BlockError.Duplicate
|
|
|
|
test "Trying to add a duplicate block from an old pruned epoch is tagged as an error":
|
|
# Note: very sensitive to stack usage
|
|
|
|
dag.updateFlags.incl {skipBlsValidation}
|
|
var cache = StateCache()
|
|
let
|
|
b10 = addTestBlock(state[], cache).phase0Data
|
|
b10Add = dag.addHeadBlock(verifier, b10) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
let head = pool[].selectOptimisticHead(b10Add[].slot.start_beacon_time).get()
|
|
|
|
doAssert: head == b10Add[]
|
|
|
|
# -------------------------------------------------------------
|
|
let b10_clone = b10 # Assumes deep copy
|
|
|
|
# -------------------------------------------------------------
|
|
# Pass an epoch
|
|
var attestations: seq[Attestation]
|
|
|
|
for epoch in 0 ..< 5:
|
|
let start_slot = start_slot(Epoch epoch)
|
|
let committees_per_slot =
|
|
get_committee_count_per_slot(state[], Epoch epoch, cache)
|
|
for slot in start_slot ..< start_slot + SLOTS_PER_EPOCH:
|
|
let new_block = addTestBlock(
|
|
state[], cache, attestations = attestations).phase0Data
|
|
|
|
let blockRef = dag.addHeadBlock(verifier, new_block) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
let head = pool[].selectOptimisticHead(blockRef[].slot.start_beacon_time).get()
|
|
doAssert: head == blockRef[]
|
|
dag.updateHead(head, quarantine[])
|
|
pruneAtFinalization(dag, pool[])
|
|
|
|
attestations.setLen(0)
|
|
for committee_index in get_committee_indices(committees_per_slot):
|
|
let committee = get_beacon_committee(
|
|
state[], getStateField(state[], slot), committee_index,
|
|
cache)
|
|
|
|
# Create a bitfield filled with the given count per attestation,
|
|
# exactly on the right-most part of the committee field.
|
|
var aggregation_bits = init(CommitteeValidatorsBits, committee.len)
|
|
for v in 0 ..< committee.len * 2 div 3 + 1:
|
|
aggregation_bits[v] = true
|
|
|
|
attestations.add Attestation(
|
|
aggregation_bits: aggregation_bits,
|
|
data: makeAttestationData(state[], getStateField(state[], slot),
|
|
committee_index, blockRef.get().root)
|
|
# signature: ValidatorSig()
|
|
)
|
|
|
|
cache = StateCache()
|
|
|
|
# -------------------------------------------------------------
|
|
# Prune
|
|
|
|
doAssert: dag.finalizedHead.slot != 0
|
|
|
|
pool[].prune()
|
|
doAssert: b10.root notin pool.forkChoice.backend
|
|
|
|
# Add back the old block to ensure we have a duplicate error
|
|
let b10Add_clone = dag.addHeadBlock(verifier, b10_clone) do (
|
|
blckRef: BlockRef, signedBlock: phase0.TrustedSignedBeaconBlock,
|
|
epochRef: EpochRef, unrealized: FinalityCheckpoints):
|
|
# Callback add to fork choice if valid
|
|
pool[].addForkChoice(
|
|
epochRef, blckRef, unrealized, signedBlock.message,
|
|
blckRef.slot.start_beacon_time)
|
|
|
|
doAssert: b10Add_clone.error == BlockError.Duplicate
|