def test_can_get_nodes_blocks_node_overrides_genesis_state_node(
blockchain_directory, blockchain_genesis_state, user_account_key_pair
):
blockchain = FileBlockchain(base_directory=blockchain_directory)
account_number = user_account_key_pair.public
blockchain_state_node = baker.make(
Node, network_addresses=['https://192.168.0.32:8555/'], identifier=account_number
)
blockchain_genesis_state.account_states[account_number] = AccountState(node=blockchain_state_node)
blockchain.add_blockchain_state(blockchain_genesis_state)
blockchain.validate()
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://127.0.0.1:8555/'], fee_amount=3, signing_key=user_account_key_pair.private
)
blocks_node = request.message.node
assert blocks_node.identifier
block = Block.create_from_signed_change_request(blockchain, request, get_node_signing_key())
blockchain.add_block(block)
assert blocks_node != blockchain_state_node
assert list(blockchain.yield_nodes()) == [blocks_node]
def test_node_serializes_with_identifier_in_account_state():
node = baker.make(Node)
assert node.identifier
account_state = AccountState(node=node)
serialized = account_state.serialize_to_dict()
assert 'identifier' in serialized['node']
assert serialized['node']['identifier'] == node.identifier
def test_can_get_nodes_single_node_from_blockchain_genesis_state(
blockchain_directory, blockchain_genesis_state, user_account_key_pair
):
blockchain = FileBlockchain(base_directory=blockchain_directory)
account_number = user_account_key_pair.public
node = baker.make(Node, identifier=account_number)
blockchain_genesis_state.account_states[account_number] = AccountState(node=node)
blockchain.add_blockchain_state(blockchain_genesis_state)
blockchain.validate()
assert list(blockchain.yield_nodes()) == [node]
def test_node_serializes_without_identifier_in_blockchain_state():
node = baker.make(Node)
account_number = node.identifier
assert account_number
account_state = AccountState(node=node)
blockchain_state = BlockchainState(
account_states={account_number: account_state})
serialized = blockchain_state.serialize_to_dict()
assert 'identifier' not in serialized['account_states'][account_number][
'node']
deserialized = BlockchainState.deserialize_from_dict(serialized)
deserialized_node = deserialized.account_states[account_number].node
assert deserialized_node is not node
assert deserialized_node.identifier == account_number
def test_node_serializes_without_identifier_in_block(memory_blockchain,
user_account_key_pair):
account_number = user_account_key_pair.public
node = baker.make(Node, identifier=account_number)
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.34:8555/'],
fee_amount=3,
signing_key=user_account_key_pair.private)
block = Block.create_from_signed_change_request(memory_blockchain, request,
get_node_signing_key())
serialized = block.serialize_to_dict()
assert 'identifier' not in serialized['message']['updated_account_states'][
account_number]['node']
deserialized = Block.deserialize_from_dict(serialized)
deserialized_node = deserialized.message.updated_account_states[
account_number].node
assert deserialized_node is not node
assert deserialized_node.identifier == account_number
def test_can_get_nodes_from_different_block_numbers(
blockchain_directory, blockchain_genesis_state, user_account_key_pair
):
account_number = user_account_key_pair.public
blockchain = FileBlockchain(base_directory=blockchain_directory)
blockchain_state_node = baker.make(
Node, network_addresses=['https://192.168.0.29:8555/'], identifier=account_number
)
blockchain_genesis_state.account_states[account_number] = AccountState(node=blockchain_state_node)
blockchain.add_blockchain_state(blockchain_genesis_state)
blockchain.validate()
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.30:8555/'], fee_amount=3, signing_key=user_account_key_pair.private
)
node0 = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.31:8555/'], fee_amount=3, signing_key=user_account_key_pair.private
)
node1 = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.32:8555/'], fee_amount=3, signing_key=user_account_key_pair.private
)
node2 = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
assert list(blockchain.yield_nodes()) == [node2]
assert list(blockchain.yield_nodes(block_number=2)) == [node2]
assert list(blockchain.yield_nodes(block_number=1)) == [node1]
assert list(blockchain.yield_nodes(block_number=0)) == [node0]
assert list(blockchain.yield_nodes(block_number=-1)) == [blockchain_state_node]
def test_can_get_nodes_from_complex_blockchain(blockchain_directory, blockchain_genesis_state):
key_pair1 = generate_key_pair()
key_pair2 = generate_key_pair()
key_pair3 = generate_key_pair()
key_pair4 = generate_key_pair()
key_pair5 = generate_key_pair()
key_pair6 = generate_key_pair()
assert len({
key_pair1.public, key_pair2.public, key_pair3.public, key_pair4.public, key_pair5.public, key_pair6.public
}) == 6
blockchain = FileBlockchain(base_directory=blockchain_directory)
node1 = baker.make(Node, network_addresses=['https://192.168.0.29:8555/'], identifier=key_pair1.public)
blockchain_genesis_state.account_states[node1.identifier] = AccountState(node=node1)
blockchain.add_blockchain_state(blockchain_genesis_state)
blockchain.validate()
# Block 0
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.30:8555/'], fee_amount=3, signing_key=key_pair2.private
)
node2 = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
# Block 1
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.31:8555/'], fee_amount=3, signing_key=key_pair3.private
)
node3_old = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
# Block 2
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.32:8555/'], fee_amount=3, signing_key=key_pair4.private
)
node4 = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
def sort_key(value):
return value.network_addresses
def sort_me(list_):
return sorted(list_, key=sort_key)
assert sort_me(blockchain.yield_nodes(block_number=2)) == sort_me([node4, node3_old, node2, node1])
blockchain.snapshot_blockchain_state()
# Block 3
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.33:8555/'], fee_amount=3, signing_key=key_pair3.private
)
node3 = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
# Block 4
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.34:8555/'], fee_amount=3, signing_key=key_pair5.private
)
node5 = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
# Block 5
request = NodeDeclarationSignedChangeRequest.create(
network_addresses=['https://192.168.0.35:8555/'], fee_amount=3, signing_key=key_pair6.private
)
node6 = request.message.node
blockchain.add_block(Block.create_from_signed_change_request(blockchain, request, get_node_signing_key()))
assert sort_me(blockchain.yield_nodes()) == sort_me([node6, node5, node3, node4, node2, node1])
assert sort_me(blockchain.yield_nodes(block_number=5)) == sort_me([node6, node5, node3, node4, node2, node1])
assert sort_me(blockchain.yield_nodes(block_number=4)) == sort_me([node5, node3, node4, node2, node1])
assert sort_me(blockchain.yield_nodes(block_number=3)) == sort_me([node3, node4, node2, node1])
assert sort_me(blockchain.yield_nodes(block_number=2)) == sort_me([node4, node3_old, node2, node1])
assert sort_me(blockchain.yield_nodes(block_number=1)) == sort_me([node3_old, node2, node1])
assert sort_me(blockchain.yield_nodes(block_number=0)) == sort_me([node2, node1])
assert sort_me(blockchain.yield_nodes(block_number=-1)) == sort_me([node1])
def test_node_serializes_with_identifier_standalone():
node = baker.make(Node)
assert node.identifier
serialized = node.serialize_to_dict()
assert 'identifier' in serialized
assert serialized['identifier'] == node.identifier