def test_import_block(chain_without_block_validation): # noqa: F811
chain = chain_without_block_validation # noqa: F811
recipient = decode_hex('0xa94f5374fce5edbc8e2a8697c15331677e6ebf0c')
amount = 100
vm = chain.get_vm()
from_ = chain.funded_address
tx = new_transaction(vm, from_, recipient, amount, chain.funded_address_private_key)
computation = vm.apply_transaction(tx)
assert not computation.is_error
block = chain.import_block(vm.block)
assert block.transactions == [tx]
assert chain.get_block_by_hash(block.hash) == block
assert chain.get_canonical_block_by_number(block.number) == block
def test_import_block_validation(chain): # noqa: F811
block = rlp.decode(valid_block_rlp, sedes=FrontierBlock, chaindb=chain.chaindb)
imported_block = chain.import_block(block)
assert len(imported_block.transactions) == 1
tx = imported_block.transactions[0]
assert tx.value == 10
vm = chain.get_vm()
with vm.state.state_db(read_only=True) as state_db:
assert state_db.get_balance(
decode_hex("095e7baea6a6c7c4c2dfeb977efac326af552d87")) == tx.value
tx_gas = tx.gas_price * constants.GAS_TX
assert state_db.get_balance(chain.funded_address) == (
chain.funded_address_initial_balance - tx.value - tx_gas)