def process_deposit(*, state: BeaconState, pubkey: BLSPubkey, amount: Gwei,
proof_of_possession: BLSSignature,
withdrawal_credentials: Hash32, randao_commitment: Hash32,
custody_commitment: Hash32) -> BeaconState:
"""
Process a deposit from Ethereum 1.0.
"""
validate_proof_of_possession(
state=state,
pubkey=pubkey,
proof_of_possession=proof_of_possession,
withdrawal_credentials=withdrawal_credentials,
randao_commitment=randao_commitment,
custody_commitment=custody_commitment,
)
validator_pubkeys = tuple(v.pubkey for v in state.validator_registry)
if pubkey not in validator_pubkeys:
validator = ValidatorRecord.create_pending_validator(
pubkey=pubkey,
withdrawal_credentials=withdrawal_credentials,
randao_commitment=randao_commitment,
custody_commitment=custody_commitment,
)
# Note: In phase 2 registry indices that has been withdrawn for a long time
# will be recycled.
state = add_pending_validator(
state,
validator,
amount,
)
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_balance(
validator_index=index,
balance=state.validator_balances[index] + amount,
)
return state
def test_create_pending_validator():
pubkey = 123
withdrawal_credentials = b'\x11' * 32
randao_commitment = b'\x22' * 32
custody_commitment = b'\x33' * 32
validator = ValidatorRecord.create_pending_validator(
pubkey=pubkey,
withdrawal_credentials=withdrawal_credentials,
randao_commitment=randao_commitment,
custody_commitment=custody_commitment,
)
assert validator.pubkey == pubkey
assert validator.withdrawal_credentials == withdrawal_credentials
assert validator.randao_commitment == randao_commitment
assert validator.randao_layers == 0
assert validator.activation_slot == FAR_FUTURE_SLOT
assert validator.exit_slot == FAR_FUTURE_SLOT
assert validator.withdrawal_slot == FAR_FUTURE_SLOT
assert validator.penalized_slot == FAR_FUTURE_SLOT
assert validator.exit_count == 0
