return b''
else:
return keccak(to_bytes(text="{0}".format(block_number)))
def get_prev_hashes_testing(self, last_block_hash, db):
prev_hashes = []
return prev_hashes
FrontierStateForTesting = FrontierState.configure(
__name__='FrontierStateForTesting',
get_ancestor_hash=get_block_hash_for_testing,
)
HomesteadStateForTesting = HomesteadState.configure(
__name__='HomesteadStateForTesting',
get_ancestor_hash=get_block_hash_for_testing,
)
TangerineWhistleStateForTesting = TangerineWhistleState.configure(
__name__='TangerineWhistleStateForTesting',
get_ancestor_hash=get_block_hash_for_testing,
)
SpuriousDragonStateForTesting = SpuriousDragonState.configure(
__name__='SpuriousDragonStateForTesting',
get_ancestor_hash=get_block_hash_for_testing,
)
ByzantiumStateForTesting = ByzantiumState.configure(
__name__='ByzantiumStateForTesting',
get_ancestor_hash=get_block_hash_for_testing,
)
FrontierVMForTesting = FrontierVM.configure(
if block_number >= self.block_number:
return b''
elif block_number < self.block_number - 256:
return b''
else:
return keccak(to_bytes(text="{0}".format(block_number)))
HomesteadComputationForTesting = HomesteadComputation.configure(
__name__='HomesteadComputationForTesting',
apply_message=apply_message_for_testing,
apply_create_message=apply_create_message_for_testing,
)
HomesteadStateForTesting = HomesteadState.configure(
__name__='HomesteadStateForTesting',
get_ancestor_hash=get_block_hash_for_testing,
computation_class=HomesteadComputationForTesting,
)
HomesteadVMForTesting = HomesteadVM.configure(
__name__='HomesteadVMForTesting',
_state_class=HomesteadStateForTesting,
)
@pytest.fixture(params=['Frontier', 'Homestead', 'EIP150', 'SpuriousDragon'])
def vm_class(request):
if request.param == 'Frontier':
pytest.skip('Only the Homestead VM rules are currently supported')
elif request.param == 'Homestead':
return HomesteadVMForTesting
elif request.param == 'EIP150':