def test_valid_election_conclude(b_mock, valid_upsert_validator_election, ed25519_node_keys):
# Node 0: cast vote
tx_vote0 = gen_vote(valid_upsert_validator_election, 0, ed25519_node_keys)
# check if the vote is valid even before the election doesn't exist
with pytest.raises(ValidationError):
assert tx_vote0.validate(b_mock)
# store election
b_mock.store_bulk_transactions([valid_upsert_validator_election])
# cannot conclude election as not votes exist
assert not valid_upsert_validator_election.has_concluded(b_mock)
# validate vote
assert tx_vote0.validate(b_mock)
assert not valid_upsert_validator_election.has_concluded(b_mock, [tx_vote0])
b_mock.store_bulk_transactions([tx_vote0])
assert not valid_upsert_validator_election.has_concluded(b_mock)
# Node 1: cast vote
tx_vote1 = gen_vote(valid_upsert_validator_election, 1, ed25519_node_keys)
# Node 2: cast vote
tx_vote2 = gen_vote(valid_upsert_validator_election, 2, ed25519_node_keys)
# Node 3: cast vote
tx_vote3 = gen_vote(valid_upsert_validator_election, 3, ed25519_node_keys)
assert tx_vote1.validate(b_mock)
assert not valid_upsert_validator_election.has_concluded(b_mock, [tx_vote1])
# 2/3 is achieved in the same block so the election can be.has_concludedd
assert valid_upsert_validator_election.has_concluded(b_mock, [tx_vote1, tx_vote2])
b_mock.store_bulk_transactions([tx_vote1])
assert not valid_upsert_validator_election.has_concluded(b_mock)
assert tx_vote2.validate(b_mock)
assert tx_vote3.validate(b_mock)
# conclusion can be triggered my different votes in the same block
assert valid_upsert_validator_election.has_concluded(b_mock, [tx_vote2])
assert valid_upsert_validator_election.has_concluded(b_mock, [tx_vote2, tx_vote3])
b_mock.store_bulk_transactions([tx_vote2])
# Once the blockchain records >2/3 of the votes the election is assumed to be.has_concludedd
# so any invocation of `.has_concluded` for that election should return False
assert not valid_upsert_validator_election.has_concluded(b_mock)
# Vote is still valid but the election cannot be.has_concludedd as it it assmed that it has
# been.has_concludedd before
assert tx_vote3.validate(b_mock)
assert not valid_upsert_validator_election.has_concluded(b_mock, [tx_vote3])
def test_upsert_validator(b, node_key, node_keys, ed25519_node_keys):
if b.get_latest_block()['height'] == 0:
generate_block(b)
(node_pub, _) = list(node_keys.items())[0]
validators = [{
'public_key': {
'type': 'ed25519-base64',
'value': node_pub
},
'voting_power': 10
}]
latest_block = b.get_latest_block()
# reset the validator set
b.store_validator_set(latest_block['height'], validators)
generate_block(b)
power = 1
public_key = '9B3119650DF82B9A5D8A12E38953EA47475C09F0C48A4E6A0ECE182944B24403'
public_key64 = public_key_to_base64(public_key)
new_validator = {
'public_key': {
'value': public_key,
'type': 'ed25519-base16'
},
'node_id': 'some_node_id',
'power': power
}
voters = ValidatorElection.recipients(b)
election = ValidatorElection.generate([node_key.public_key], voters,
new_validator,
None).sign([node_key.private_key])
code, message = b.write_transaction(election, BROADCAST_TX_COMMIT)
assert code == 202
assert b.get_transaction(election.id)
tx_vote = gen_vote(election, 0, ed25519_node_keys)
assert tx_vote.validate(b)
code, message = b.write_transaction(tx_vote, BROADCAST_TX_COMMIT)
assert code == 202
resp = b.get_validators()
validator_pub_keys = []
for v in resp:
validator_pub_keys.append(v['public_key']['value'])
assert (public_key64 in validator_pub_keys)
new_validator_set = b.get_validators()
validator_pub_keys = []
for v in new_validator_set:
validator_pub_keys.append(v['public_key']['value'])
assert (public_key64 in validator_pub_keys)
def test_get_validator_update(b, node_keys, node_key, ed25519_node_keys):
reset_validator_set(b, node_keys, 1)
power = 1
public_key = '9B3119650DF82B9A5D8A12E38953EA47475C09F0C48A4E6A0ECE182944B24403'
public_key64 = public_key_to_base64(public_key)
new_validator = {'public_key': {'value': public_key, 'type': 'ed25519-base16'},
'node_id': 'some_node_id',
'power': power}
voters = ValidatorElection.recipients(b)
election = ValidatorElection.generate([node_key.public_key],
voters,
new_validator).sign([node_key.private_key])
# store election
b.store_bulk_transactions([election])
tx_vote0 = gen_vote(election, 0, ed25519_node_keys)
tx_vote1 = gen_vote(election, 1, ed25519_node_keys)
tx_vote2 = gen_vote(election, 2, ed25519_node_keys)
assert not election.has_concluded(b, [tx_vote0])
assert not election.has_concluded(b, [tx_vote0, tx_vote1])
assert election.has_concluded(b, [tx_vote0, tx_vote1, tx_vote2])
assert Election.process_block(b, 4, [tx_vote0]) == []
assert Election.process_block(b, 4, [tx_vote0, tx_vote1]) == []
update = Election.process_block(b, 4, [tx_vote0, tx_vote1, tx_vote2])
assert len(update) == 1
update_public_key = codecs.encode(update[0].pub_key.data, 'base64').decode().rstrip('\n')
assert update_public_key == public_key64
# remove validator
power = 0
new_validator = {'public_key': {'value': public_key, 'type': 'ed25519-base16'},
'node_id': 'some_node_id',
'power': power}
voters = ValidatorElection.recipients(b)
election = ValidatorElection.generate([node_key.public_key],
voters,
new_validator).sign([node_key.private_key])
# store election
b.store_bulk_transactions([election])
tx_vote0 = gen_vote(election, 0, ed25519_node_keys)
tx_vote1 = gen_vote(election, 1, ed25519_node_keys)
tx_vote2 = gen_vote(election, 2, ed25519_node_keys)
b.store_bulk_transactions([tx_vote0, tx_vote1])
update = Election.process_block(b, 9, [tx_vote2])
assert len(update) == 1
update_public_key = codecs.encode(update[0].pub_key.data, 'base64').decode().rstrip('\n')
assert update_public_key == public_key64
# assert that the public key is not a part of the current validator set
for v in b.get_validators(10):
assert not v['public_key']['value'] == public_key64
def test_upsert_validator(b, node_key, node_keys, ed25519_node_keys):
if b.get_latest_block()['height'] == 0:
generate_block(b)
(node_pub, _) = list(node_keys.items())[0]
validators = [{'public_key': {'type': 'ed25519-base64', 'value': node_pub},
'voting_power': 10}]
latest_block = b.get_latest_block()
# reset the validator set
b.store_validator_set(latest_block['height'], validators)
generate_block(b)
power = 1
public_key = '9B3119650DF82B9A5D8A12E38953EA47475C09F0C48A4E6A0ECE182944B24403'
public_key64 = public_key_to_base64(public_key)
new_validator = {'public_key': {'value': public_key, 'type': 'ed25519-base16'},
'node_id': 'some_node_id',
'power': power}
voters = ValidatorElection.recipients(b)
election = ValidatorElection.generate([node_key.public_key],
voters,
new_validator, None).sign([node_key.private_key])
code, message = b.write_transaction(election, 'broadcast_tx_commit')
assert code == 202
assert b.get_transaction(election.id)
tx_vote = gen_vote(election, 0, ed25519_node_keys)
assert tx_vote.validate(b)
code, message = b.write_transaction(tx_vote, 'broadcast_tx_commit')
assert code == 202
resp = b.get_validators()
validator_pub_keys = []
for v in resp:
validator_pub_keys.append(v['public_key']['value'])
assert (public_key64 in validator_pub_keys)
new_validator_set = b.get_validators()
validator_pub_keys = []
for v in new_validator_set:
validator_pub_keys.append(v['public_key']['value'])
assert (public_key64 in validator_pub_keys)
def generate_votes(election, voters, keys):
votes = []
for voter, _ in enumerate(voters):
v = gen_vote(election, voter, keys)
votes.append(v)
return votes
def generate_votes(election, voters, keys):
votes = []
for voter, _ in enumerate(voters):
v = gen_vote(election, voter, keys)
votes.append(v)
return votes
def test_get_validator_update(b, node_keys, node_key, ed25519_node_keys):
reset_validator_set(b, node_keys, 1)
power = 1
public_key = '9B3119650DF82B9A5D8A12E38953EA47475C09F0C48A4E6A0ECE182944B24403'
public_key64 = public_key_to_base64(public_key)
new_validator = {
'public_key': {
'value': public_key,
'type': 'ed25519-base16'
},
'node_id': 'some_node_id',
'power': power
}
voters = ValidatorElection.recipients(b)
election = ValidatorElection.generate([node_key.public_key], voters,
new_validator).sign(
[node_key.private_key])
# store election
b.store_bulk_transactions([election])
tx_vote0 = gen_vote(election, 0, ed25519_node_keys)
tx_vote1 = gen_vote(election, 1, ed25519_node_keys)
tx_vote2 = gen_vote(election, 2, ed25519_node_keys)
assert not election.has_concluded(b, [tx_vote0])
assert not election.has_concluded(b, [tx_vote0, tx_vote1])
assert election.has_concluded(b, [tx_vote0, tx_vote1, tx_vote2])
assert Election.process_block(b, 4, [tx_vote0]) == []
assert Election.process_block(b, 4, [tx_vote0, tx_vote1]) == []
update = Election.process_block(b, 4, [tx_vote0, tx_vote1, tx_vote2])
assert len(update) == 1
update_public_key = codecs.encode(update[0].pub_key.data,
'base64').decode().rstrip('\n')
assert update_public_key == public_key64
# remove validator
power = 0
new_validator = {
'public_key': {
'value': public_key,
'type': 'ed25519-base16'
},
'node_id': 'some_node_id',
'power': power
}
voters = ValidatorElection.recipients(b)
election = ValidatorElection.generate([node_key.public_key], voters,
new_validator).sign(
[node_key.private_key])
# store election
b.store_bulk_transactions([election])
tx_vote0 = gen_vote(election, 0, ed25519_node_keys)
tx_vote1 = gen_vote(election, 1, ed25519_node_keys)
tx_vote2 = gen_vote(election, 2, ed25519_node_keys)
b.store_bulk_transactions([tx_vote0, tx_vote1])
update = Election.process_block(b, 9, [tx_vote2])
assert len(update) == 1
update_public_key = codecs.encode(update[0].pub_key.data,
'base64').decode().rstrip('\n')
assert update_public_key == public_key64
# assert that the public key is not a part of the current validator set
for v in b.get_validators(10):
assert not v['public_key']['value'] == public_key64
def test_valid_election_conclude(b_mock, valid_upsert_validator_election,
ed25519_node_keys):
# Node 0: cast vote
tx_vote0 = gen_vote(valid_upsert_validator_election, 0, ed25519_node_keys)
# check if the vote is valid even before the election doesn't exist
with pytest.raises(ValidationError):
assert tx_vote0.validate(b_mock)
# store election
b_mock.store_bulk_transactions([valid_upsert_validator_election])
# cannot conclude election as not votes exist
assert not valid_upsert_validator_election.has_concluded(b_mock)
# validate vote
assert tx_vote0.validate(b_mock)
assert not valid_upsert_validator_election.has_concluded(
b_mock, [tx_vote0])
b_mock.store_bulk_transactions([tx_vote0])
assert not valid_upsert_validator_election.has_concluded(b_mock)
# Node 1: cast vote
tx_vote1 = gen_vote(valid_upsert_validator_election, 1, ed25519_node_keys)
# Node 2: cast vote
tx_vote2 = gen_vote(valid_upsert_validator_election, 2, ed25519_node_keys)
# Node 3: cast vote
tx_vote3 = gen_vote(valid_upsert_validator_election, 3, ed25519_node_keys)
assert tx_vote1.validate(b_mock)
assert not valid_upsert_validator_election.has_concluded(
b_mock, [tx_vote1])
# 2/3 is achieved in the same block so the election can be.has_concludedd
assert valid_upsert_validator_election.has_concluded(
b_mock, [tx_vote1, tx_vote2])
b_mock.store_bulk_transactions([tx_vote1])
assert not valid_upsert_validator_election.has_concluded(b_mock)
assert tx_vote2.validate(b_mock)
assert tx_vote3.validate(b_mock)
# conclusion can be triggered my different votes in the same block
assert valid_upsert_validator_election.has_concluded(b_mock, [tx_vote2])
assert valid_upsert_validator_election.has_concluded(
b_mock, [tx_vote2, tx_vote3])
b_mock.store_bulk_transactions([tx_vote2])
# Once the blockchain records >2/3 of the votes the election is assumed to be.has_concludedd
# so any invocation of `.has_concluded` for that election should return False
assert not valid_upsert_validator_election.has_concluded(b_mock)
# Vote is still valid but the election cannot be.has_concludedd as it it assmed that it has
# been.has_concludedd before
assert tx_vote3.validate(b_mock)
assert not valid_upsert_validator_election.has_concluded(
b_mock, [tx_vote3])