def test_missing_state_root():
context = None
state = FrontierState(MemoryDB(), context, b'\x0f' * 32)
with pytest.raises(StateRootNotFound):
state.apply_transaction(None)
return b''
elif block_number < 0:
return b''
elif block_number < self.block_number - 256:
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',