def test_chain_builder_construct_chain_vm_configuration_multiple_forks():
chain = build(
MiningChain,
fork_at(FrontierVM, 0),
fork_at(HomesteadVM, 5),
)
assert issubclass(chain, MiningChain)
assert len(chain.vm_configuration) == 2
assert chain.vm_configuration[0][0] == 0
assert chain.vm_configuration[0][1] == FrontierVM
assert chain.vm_configuration[1][0] == 5
assert chain.vm_configuration[1][1] == HomesteadVM
def get_chain(vm: Type[BaseVM], genesis_state: GenesisState) -> MiningChain:
chain = build(MiningChain, fork_at(vm, constants.GENESIS_BLOCK_NUMBER),
disable_pow_check(),
genesis(params=GENESIS_PARAMS, state=genesis_state))
return chain
def test_chain_builder_construct_chain_vm_configuration_single_fork():
chain = build(
MiningChain,
fork_at(FrontierVM, 0),
)
assert issubclass(chain, MiningChain)
assert len(chain.vm_configuration) == 1
assert chain.vm_configuration[0][0] == 0
assert chain.vm_configuration[0][1] == FrontierVM
def get_chain(vm: Type[VirtualMachineAPI],
genesis_state: GenesisState) -> Iterable[MiningChain]:
with tempfile.TemporaryDirectory() as temp_dir:
level_db_obj = LevelDB(Path(temp_dir))
level_db_chain = build(
MiningChain, fork_at(vm, constants.GENESIS_BLOCK_NUMBER),
disable_pow_check(),
genesis(db=level_db_obj,
params=GENESIS_PARAMS,
state=genesis_state))
yield level_db_chain
