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9ee6c3e7ef
There are multiple ways how states can be processed during tests. One is through tests/mocking, the other through tests/xxxutil. Both methods can create genesis states with a set of deposits from mock validators. The private keys for those validators are created differently, though. While tests/mocking generates random keys, testblockutil generates fixed keys. This is a problem when mixing both tests/mocking and testblockutil in a single test case, as they assume that the deposits were generated using the same method. This patch aligns the key generation across tests.
116 lines
3.5 KiB
Nim
116 lines
3.5 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2021 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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# Mocking attestations
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# ---------------------------------------------------------------
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import
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# Standard library
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intsets,
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# Status
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chronicles,
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# Specs
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../../beacon_chain/spec/datatypes/phase0,
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../../beacon_chain/spec/[beaconstate, forks, helpers, validator, signatures],
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# Test utilities
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./mock_blocks,
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../testblockutil
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proc mockAttestationData(
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state: phase0.BeaconState,
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slot: Slot,
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index: uint64): AttestationData =
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doAssert state.slot >= slot
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if slot == state.slot:
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let forkedState = (ref ForkedHashedBeaconState)(beaconStateFork: forkPhase0,
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hbsPhase0: phase0.HashedBeaconState(root: hash_tree_root(state), data: state))[]
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result.beacon_block_root = mockBlockForNextSlot(forkedState).phase0Block.message.parent_root
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else:
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result.beacon_block_root = get_block_root_at_slot(state, slot)
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let current_epoch_start_slot = state.get_current_epoch().compute_start_slot_at_epoch()
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let epoch_boundary_root = block:
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if slot < current_epoch_start_slot:
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get_block_root(state, get_previous_epoch(state))
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elif slot == current_epoch_start_slot:
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result.beacon_block_root
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else:
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get_block_root(state, get_current_epoch(state))
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if slot < current_epoch_start_slot:
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result.source = state.previous_justified_checkpoint
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else:
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result.source = state.current_justified_checkpoint
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let target_epoch = compute_epoch_at_slot(slot)
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result.slot = slot
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result.index = index
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result.target = Checkpoint(
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epoch: target_epoch, root: epoch_boundary_root
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)
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proc signMockAttestation*(state: phase0.BeaconState, attestation: var Attestation) =
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var cache = StateCache()
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var agg {.noInit.}: AggregateSignature
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var first_iter = true # Can't do while loop on hashset
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for validator_index in get_attesting_indices(
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state,
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attestation.data,
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attestation.aggregation_bits,
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cache
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):
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let sig = get_attestation_signature(
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state.fork, state.genesis_validators_root, attestation.data,
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MockPrivKeys[validator_index]
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)
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if first_iter:
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agg.init(sig)
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first_iter = false
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else:
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agg.aggregate(sig)
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if first_iter != true:
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attestation.signature = agg.finish().toValidatorSig()
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# Otherwise no participants so zero sig
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proc mockAttestationImpl(
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state: phase0.BeaconState,
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slot: Slot): Attestation =
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var cache = StateCache()
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let
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beacon_committee = get_beacon_committee(
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state,
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result.data.slot,
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result.data.index.CommitteeIndex,
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cache
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)
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committee_size = beacon_committee.len
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result.data = mockAttestationData(state, slot, 0)
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result.aggregation_bits = init(CommitteeValidatorsBits, committee_size)
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# fillAggregateAttestation
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for i in 0 ..< beacon_committee.len:
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result.aggregation_bits[i] = true
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signMockAttestation(state, result)
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proc mockAttestation*(
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state: phase0.BeaconState): Attestation =
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mockAttestationImpl(state, state.slot)
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proc mockAttestation*(
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state: phase0.BeaconState,
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slot: Slot): Attestation =
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mockAttestationImpl(state, slot)
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