2021-08-31 12:16:27 +00:00
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{.used.}
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2021-08-30 01:00:37 +00:00
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import
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unittest2,
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../beacon_chain/ssz/bitseqs,
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../beacon_chain/spec/[beaconstate, crypto, digest, helpers, presets, signatures],
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../beacon_chain/consensus_object_pools/sync_committee_msg_pool,
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testblockutil
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func aggregate(sigs: openarray[CookedSig]): CookedSig =
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var agg {.noInit.}: AggregateSignature
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agg.init sigs[0]
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for i in 1 ..< sigs.len:
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agg.aggregate sigs[i]
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agg.finish
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suite "Sync committee pool":
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setup:
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var pool = SyncCommitteeMsgPool.init()
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test "An empty pool is safe to use":
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let headRoot = eth2digest(@[1.byte, 2, 3])
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var outContribution: SyncCommitteeContribution
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let success = pool.produceContribution(
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Slot(1),
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headRoot,
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SyncCommitteeIndex(0),
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outContribution)
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check(success == false)
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let aggregate = pool.produceSyncAggregate(headRoot)
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check:
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aggregate.sync_committee_bits.isZeros
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aggregate.sync_committee_signature == ValidatorSig.infinity
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test "An empty pool is safe to prune":
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pool.pruneData(Slot(0))
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test "An empty pool is safe to prune 2":
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pool.pruneData(Slot(10000))
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test "Aggregating votes":
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let
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fork = altairFork(defaultRuntimeConfig)
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genesisValidatorsRoot = eth2digest(@[5.byte, 6, 7])
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privkey1 = makeFakeValidatorPrivKey(1)
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privkey2 = makeFakeValidatorPrivKey(2)
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privkey3 = makeFakeValidatorPrivKey(3)
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privkey4 = makeFakeValidatorPrivKey(4)
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root1 = eth2digest(@[1.byte])
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root2 = eth2digest(@[1.byte, 2])
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root3 = eth2digest(@[1.byte, 2, 3])
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root1Slot = Slot(100)
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root2Slot = Slot(101)
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root3Slot = Slot(101)
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subcommittee1 = SyncCommitteeIndex(0)
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subcommittee2 = SyncCommitteeIndex(1)
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sig1 = blsSign(privkey1, sync_committee_msg_signing_root(
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fork, root1Slot.epoch, genesisValidatorsRoot, root1).data)
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sig2 = blsSign(privkey2, sync_committee_msg_signing_root(
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fork, root2Slot.epoch, genesisValidatorsRoot, root1).data)
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sig3 = blsSign(privkey3, sync_committee_msg_signing_root(
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fork, root3Slot.epoch, genesisValidatorsRoot, root1).data)
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sig4 = blsSign(privkey4, sync_committee_msg_signing_root(
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fork, root3Slot.epoch, genesisValidatorsRoot, root2).data)
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# Inserting sync committee messages
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#
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pool.addSyncCommitteeMsg(root1Slot, root1, sig1, subcommittee1, 1)
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pool.addSyncCommitteeMsg(root1Slot, root1, sig2, subcommittee1, 10)
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pool.addSyncCommitteeMsg(root2Slot, root1, sig3, subcommittee2, 7)
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pool.addSyncCommitteeMsg(root2Slot, root2, sig4, subcommittee2, 3)
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# Producing contributions
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#
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block:
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# Checking a committee where there was no activity:
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var outContribution: SyncCommitteeContribution
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let success = pool.produceContribution(
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root2Slot,
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root2,
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subcommittee1,
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outContribution)
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check:
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not success
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block:
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# Checking a committee where 2 signatures should have been aggregated:
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var outContribution: SyncCommitteeContribution
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let success = pool.produceContribution(
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root1Slot,
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root1,
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subcommittee1,
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outContribution)
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let expectedSig = aggregate [sig1, sig2]
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check:
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success
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outContribution.slot == root1Slot
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outContribution.beacon_block_root == root1
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outContribution.subcommittee_index == subcommittee1.uint64
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outContribution.aggregation_bits.countOnes == 2
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outContribution.aggregation_bits[1] == true
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outContribution.aggregation_bits[8] == false
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outContribution.aggregation_bits[10] == true
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outContribution.signature == expectedSig.toValidatorSig
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pool.addSyncContribution(outContribution, expectedSig)
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block:
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# Checking a committee with a signle participant:
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var outContribution: SyncCommitteeContribution
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let success = pool.produceContribution(
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root1Slot,
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root1,
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subcommittee2,
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outContribution)
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check:
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success
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outContribution.slot == root1Slot
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outContribution.beacon_block_root == root1
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outContribution.subcommittee_index == subcommittee2.uint64
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outContribution.aggregation_bits.countOnes == 1
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outContribution.aggregation_bits[7] == true
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outContribution.signature == sig3.toValidatorSig
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pool.addSyncContribution(outContribution, sig3)
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block:
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# Checking another committee with a signle participant
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# voting for a different block:
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var outContribution: SyncCommitteeContribution
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let success = pool.produceContribution(
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root2Slot,
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root2,
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subcommittee2,
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outContribution)
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check:
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success
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outContribution.slot == root2Slot
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outContribution.beacon_block_root == root2
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outContribution.subcommittee_index == subcommittee2.uint64
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outContribution.aggregation_bits.countOnes == 1
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outContribution.aggregation_bits[3] == true
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outContribution.signature == sig4.toValidatorSig
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pool.addSyncContribution(outContribution, sig4)
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block:
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# Checking a block root nobody voted for
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var outContribution: SyncCommitteeContribution
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let success = pool.produceContribution(
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root3Slot,
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root3,
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subcommittee2,
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outContribution)
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check:
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not success
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# Obtaining a SyncAggregate
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#
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block:
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# Checking for a block that got no votes
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let aggregate = pool.produceSyncAggregate(root3)
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check:
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aggregate.sync_committee_bits.isZeros
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aggregate.sync_committee_signature == ValidatorSig.infinity
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block:
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# Checking for a block that got votes from 1 committee
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let aggregate = pool.produceSyncAggregate(root2)
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check:
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aggregate.sync_committee_bits.countOnes == 1
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aggregate.sync_committee_signature == sig4.toValidatorSig
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block:
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# Checking for a block that got votes from 2 committees
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let aggregate = pool.produceSyncAggregate(root1)
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let expectedSig = aggregate [sig1, sig2, sig3]
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check:
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aggregate.sync_committee_bits.countOnes == 3
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aggregate.sync_committee_signature == expectedSig.toValidatorSig
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# Pruning the data
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#
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pool.pruneData(Slot(200))
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block:
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# After pruning, all votes are gone
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var outContribution: SyncCommitteeContribution
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let success = pool.produceContribution(
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root1Slot,
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root1,
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subcommittee1,
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outContribution)
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check:
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not success
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let aggregate = pool.produceSyncAggregate(root2)
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check:
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aggregate.sync_committee_bits.isZeros
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aggregate.sync_committee_signature == ValidatorSig.infinity
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