def test_mainnet_eip1085_matches_mainnet_genesis_header(
mainnet_genesis_config):
genesis_data = extract_genesis_data(mainnet_genesis_config)
genesis_state = {
address: account.to_dict()
for address, account in genesis_data.state.items()
}
genesis_params = genesis_data.params.to_dict()
chain = Chain.configure(
vm_configuration=genesis_data.vm_configuration,
chain_id=genesis_data.chain_id,
).from_genesis(AtomicDB(), genesis_params, genesis_state)
genesis_header = chain.get_canonical_head()
assert genesis_header == MAINNET_GENESIS_HEADER
assert chain.chain_id == MainnetChain.chain_id
actual_fork_blocks = tuple(zip(*chain.vm_configuration))[0]
expected_fork_blocks = tuple(zip(*MainnetChain.vm_configuration))[0]
assert actual_fork_blocks == expected_fork_blocks
actual_homestead_vm = chain.vm_configuration[1][1]
expected_homestead_vm = MainnetChain.vm_configuration[1][1]
assert issubclass(actual_homestead_vm, HomesteadVM)
assert actual_homestead_vm.support_dao_fork is True
assert actual_homestead_vm.get_dao_fork_block_number(
) == expected_homestead_vm.get_dao_fork_block_number() # noqa: E501
def from_eip1085_genesis_config(cls,
genesis_config: Dict[str, Any],
chain_name: str=None,
) -> 'ChainConfig':
genesis_data = extract_genesis_data(genesis_config)
return cls(
genesis_data=genesis_data,
chain_name=chain_name,
)
def test_goerli_eip1085_matches_goerli_chain(goerli_genesis_config):
genesis_data = extract_genesis_data(goerli_genesis_config)
genesis_state = {
address: account.to_dict()
for address, account in genesis_data.state.items()
}
genesis_params = genesis_data.params.to_dict()
chain = Chain.configure(
vm_configuration=genesis_data.vm_configuration,
chain_id=genesis_data.chain_id,
).from_genesis(AtomicDB(), genesis_params, genesis_state)
genesis_header = chain.get_canonical_head()
assert genesis_header == GOERLI_GENESIS_HEADER
def test_mainnet_eip1085_rejects_etc_homestead_header(mainnet_genesis_config):
PRE_FORK_HEADER = BlockHeader(
difficulty=62382916183238,
block_number=1919999,
gas_limit=4707788,
timestamp=1469020838,
coinbase=b'*e\xac\xa4\xd5\xfc[\\\x85\x90\x90\xa6\xc3M\x16A59\x82&',
parent_hash=
b'P_\xfd!\xf4\xcb\xf2\xc5\xc3O\xa8L\xd8\xc9%%\xf3\xa7\x19\xb7\xad\x18\x85+\xff\xdd\xad`\x105\xf5\xf4', # noqa: E501
uncles_hash=
b'\x1d\xccM\xe8\xde\xc7]z\xab\x85\xb5g\xb6\xcc\xd4\x1a\xd3\x12E\x1b\x94\x8at\x13\xf0\xa1B\xfd@\xd4\x93G', # noqa: E501
state_root=
b'\xfd\xf2\xfc\x04X\x0b\x95\xca\x15\xde\xfcc\x90\x80\xb9\x02\xe98\x92\xdc\xce(\x8b\xe0\xc1\xf7\xa7\xbb\xc7x$\x8b', # noqa: E501
transaction_root=
b'V\xe8\x1f\x17\x1b\xccU\xa6\xff\x83E\xe6\x92\xc0\xf8n[H\xe0\x1b\x99l\xad\xc0\x01b/\xb5\xe3c\xb4!', # noqa: E501
receipt_root=
b'V\xe8\x1f\x17\x1b\xccU\xa6\xff\x83E\xe6\x92\xc0\xf8n[H\xe0\x1b\x99l\xad\xc0\x01b/\xb5\xe3c\xb4!', # noqa: E501
bloom=0,
gas_used=0,
extra_data=b'DwarfPool',
mix_hash=
b'\xa0#\n\xf0\xa0\xd3\xd2\x97\xb7\xe8\xc2G=\x16;\x1e\xb0\xb1\xbb\xbbN\x9d\x93>_\xde\xa0\x85F\xb5nY', # noqa: E501
nonce=b"`\x83'\t\xc8\x97\x9d\xaa",
)
ETC_HEADER_AT_FORK = BlockHeader(
difficulty=62413376722602,
block_number=1920000,
gas_limit=4712384,
timestamp=1469020839,
coinbase=b'a\xc8\x08\xd8*:\xc521u\r\xad\xc1<w{Y1\x0b\xd9',
parent_hash=
b'\xa2\x18\xe2\xc6\x11\xf2\x122\xd8W\xe3\xc8\xce\xcd\xcd\xf1\xf6_%\xa4G\x7f\x98\xf6\xf4~@c\x80\x7f#\x08', # noqa: E501
uncles_hash=
b'\x1d\xccM\xe8\xde\xc7]z\xab\x85\xb5g\xb6\xcc\xd4\x1a\xd3\x12E\x1b\x94\x8at\x13\xf0\xa1B\xfd@\xd4\x93G', # noqa: E501
state_root=
b'aM}5\x8b\x03\xcb\xda\xf045)g;\xe2\n\xd4X\t\xd0$\x87\xf0#\xe0G\xef\xdc\xe9\xda\x8a\xff', # noqa: E501
transaction_root=
b'\xd30h\xa7\xf2\x1b\xffP\x18\xa0\x0c\xa0\x8a5f\xa0k\xe4\x19m\xfe\x9e9\xf9nC\x15e\xa6\x19\xd4U', # noqa: E501
receipt_root=
b'{\xda\x9a\xa6Yw\x80\x03v\x12\x91H\xcb\xfe\x89\xd3Z\x01m\xd5\x1c\x95\xd6\xe6\xdc\x1ev0}1Th', # noqa: E501
bloom=0,
gas_used=84000,
extra_data=
b'\xe4\xb8\x83\xe5\xbd\xa9\xe7\xa5\x9e\xe4\xbb\x99\xe9\xb1\xbc',
mix_hash=
b'\xc5-\xaapT\xba\xbeQ[\x17\xee\x98T\x0c\x08\x89\xcf^\x15\x95\xc5\xddwIi\x97\xca\x84\xa6\x8c\x8d\xa1', # noqa: E501
nonce=b"\x05'j`\t\x80\x19\x9d",
)
ETH_HEADER_AT_FORK = BlockHeader(
difficulty=62413376722602,
block_number=1920000,
gas_limit=4712384,
timestamp=1469020840,
coinbase=
b'\xbc\xdf\xc3[\x86\xbe\xdfr\xf0\xcd\xa0F\xa3\xc1h)\xa2\xefA\xd1',
parent_hash=
b'\xa2\x18\xe2\xc6\x11\xf2\x122\xd8W\xe3\xc8\xce\xcd\xcd\xf1\xf6_%\xa4G\x7f\x98\xf6\xf4~@c\x80\x7f#\x08', # noqa: E501
uncles_hash=
b'\x1d\xccM\xe8\xde\xc7]z\xab\x85\xb5g\xb6\xcc\xd4\x1a\xd3\x12E\x1b\x94\x8at\x13\xf0\xa1B\xfd@\xd4\x93G', # noqa: E501
state_root=
b'\xc5\xe3\x89Aa\x16\xe3il\xce\x82\xecE3\xcc\xe3>\xfc\xcb$\xce$Z\xe9TjK\x8f\r^\x9au', # noqa: E501
transaction_root=
b'w\x01\xdf\x8e\x07\x16\x94RUM\x14\xaa\xdd{\xfa%mJ\x1d\x03U\xc1\xd1t\xab7>>-\n7C', # noqa: E501
receipt_root=
b'&\xcf\x9d\x94"\xe9\xdd\x95\xae\xdcy\x14\xdbi\x0b\x92\xba\xb6\x90/R!\xd6&\x94\xa2\xfa]\x06_SK', # noqa: E501
bloom=0,
gas_used=84000,
extra_data=b'dao-hard-fork',
mix_hash=
b'[Z\xcb\xf4\xbf0_\x94\x8b\xd7\xbe\x17`G\xb2\x06#\xe1A\x7fuYsA\xa0Yr\x91e\xb9#\x97', # noqa: E501
nonce=b'\xbe\xde\x87 \x1d\xe4$&',
)
genesis_data = extract_genesis_data(mainnet_genesis_config)
homestead_vm = dict(genesis_data.vm_configuration)[HOMESTEAD_MAINNET_BLOCK]
# The VM we derive from mainnet.json should validate the ETH header at the fork
homestead_vm.validate_header(ETH_HEADER_AT_FORK,
PRE_FORK_HEADER,
check_seal=True)
# But it should reject the ETC header
with pytest.raises(
ValidationError,
match='must have extra data 0x64616f2d686172642d666f726b'):
homestead_vm.validate_header(ETC_HEADER_AT_FORK,
PRE_FORK_HEADER,
check_seal=True)
