def test_update_attestations(sample_attestation_params,
sample_beacon_block_params):
block = SerenityBeaconBlock(**sample_beacon_block_params)
attestations = block.body.attestations
attestations = list(attestations)
attestations.append(Attestation(**sample_attestation_params))
body2 = block.body.copy(attestations=attestations)
block2 = block.copy(body=body2)
assert block2.num_attestations == 1
def test_demo(base_db, sample_beacon_block_params, genesis_state,
fixture_sm_class, config, privkeys, pubkeys):
chaindb = BeaconChainDB(base_db)
state = genesis_state
block = SerenityBeaconBlock(**sample_beacon_block_params).copy(
slot=state.slot + 2,
state_root=state.root,
)
# Sign block
beacon_proposer_index = get_beacon_proposer_index(
state,
block.slot,
config.EPOCH_LENGTH,
)
index_in_privkeys = pubkeys.index(
state.validator_registry[beacon_proposer_index].pubkey)
beacon_proposer_privkey = privkeys[index_in_privkeys]
empty_signature_block_root = block.block_without_signature_root
proposal_root = ProposalSignedData(
block.slot,
config.BEACON_CHAIN_SHARD_NUMBER,
empty_signature_block_root,
).root
block = block.copy(signature=bls.sign(
message=proposal_root,
privkey=beacon_proposer_privkey,
domain=SignatureDomain.DOMAIN_PROPOSAL,
), )
# Store in chaindb
chaindb.persist_block(block, SerenityBeaconBlock)
chaindb.persist_state(state)
# Get state machine instance
sm = fixture_sm_class(chaindb, block.root, SerenityBeaconBlock)
result_state, _ = sm.import_block(block)
assert state.slot == 0
assert result_state.slot == block.slot
assert isinstance(sm.block, SerenityBeaconBlock)