def apply_fixture_block_to_chain(
block_fixture: Dict[str, Any],
chain: BaseChain,
perform_validation: bool = True
) -> Tuple[BaseBlock, BaseBlock, BaseBlock]:
"""
:return: (premined_block, mined_block, rlp_encoded_mined_block)
"""
# The block to import may be in a different block-class-range than the
# chain's current one, so we use the block number specified in the
# fixture to look up the correct block class.
if 'blockHeader' in block_fixture:
block_number = block_fixture['blockHeader']['number']
block_class = chain.get_vm_class_for_block_number(
block_number).get_block_class()
else:
block_class = chain.get_vm().get_block_class()
block = rlp.decode(block_fixture['rlp'], sedes=block_class)
mined_block, _, _ = chain.import_block(
block, perform_validation=perform_validation)
rlp_encoded_mined_block = rlp.encode(mined_block, sedes=block_class)
return (block, mined_block, rlp_encoded_mined_block)
def _import_blocks(chain: BaseChain) -> BaseChain:
for block in blocks:
chain.import_block(block)
return chain
def import_block(block: BaseBlock, chain: BaseChain) -> BaseChain:
"""
Import the provided ``block`` into the chain.
"""
chain.import_block(block)
return chain