def process_deposit(*,
state: BeaconState,
pubkey: BLSPubkey,
deposit: Gwei,
proof_of_possession: BLSSignature,
withdrawal_credentials: Hash32,
randao_commitment: Hash32,
custody_commitment: Hash32,
zero_balance_validator_ttl: int) -> Tuple[BeaconState, ValidatorIndex]:
"""
Process a deposit from Ethereum 1.0.
"""
validate_proof_of_possession(
state,
pubkey,
proof_of_possession,
withdrawal_credentials,
randao_commitment,
custody_commitment,
)
validator_pubkeys = tuple(v.pubkey for v in state.validator_registry)
if pubkey not in validator_pubkeys:
validator = ValidatorRecord.get_pending_validator(
pubkey=pubkey,
withdrawal_credentials=withdrawal_credentials,
randao_commitment=randao_commitment,
latest_status_change_slot=state.slot,
custody_commitment=custody_commitment,
)
state, index = add_pending_validator(
state,
validator,
deposit,
zero_balance_validator_ttl,
)
else:
# Top-up - increase balance by deposit
index = ValidatorIndex(validator_pubkeys.index(pubkey))
validator = state.validator_registry[index]
if validator.withdrawal_credentials != withdrawal_credentials:
raise ValidationError(
"`withdrawal_credentials` are incorrect:\n"
"\texpected: %s, found: %s" % (
validator.withdrawal_credentials,
validator.withdrawal_credentials,
)
)
# Update validator's balance and state
state = state.update_validator(
validator_index=index,
validator=validator,
balance=state.validator_balances[index] + deposit,
)
return state, index
def test_get_pending_validator():
pubkey = 123
withdrawal_credentials = b'\x11' * 32
randao_commitment = b'\x22' * 32
latest_status_change_slot = 10
validator = ValidatorRecord.get_pending_validator(
pubkey=pubkey,
withdrawal_credentials=withdrawal_credentials,
randao_commitment=randao_commitment,
latest_status_change_slot=latest_status_change_slot,
)
assert validator.pubkey == pubkey
assert validator.withdrawal_credentials == withdrawal_credentials
assert validator.randao_commitment == randao_commitment
assert validator.latest_status_change_slot == latest_status_change_slot
assert validator.status == ValidatorStatusCode.PENDING_ACTIVATION
assert validator.randao_layers == 0
assert validator.exit_count == 0