test_selfdestruct_in_create_tx_initcode()

Documentation for tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_create.py::test_selfdestruct_in_create_tx_initcode@87aba1a3.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_create.py::test_selfdestruct_in_create_tx_initcode --fork Amsterdam

Verify state gas accounting when a creation tx's initcode immediately SELFDESTRUCTs to a new beneficiary.

Under EIP-2780 the created contract's NEW_ACCOUNT is charged at the top frame from gas_left (not the intrinsic), so gas_limit must cover it on top of the initcode. The block state gas is the created contract's NEW_ACCOUNT plus the fresh beneficiary's NEW_ACCOUNT charged by the SELFDESTRUCT.

Source code in tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_create.py

@pytest.mark.valid_from("EIP8037")
def test_selfdestruct_in_create_tx_initcode(
    blockchain_test: BlockchainTestFiller,
    pre: Alloc,
    fork: Fork,
) -> None:
    """
    Verify state gas accounting when a creation tx's initcode
    immediately SELFDESTRUCTs to a new beneficiary.

    Under EIP-2780 the created contract's ``NEW_ACCOUNT`` is charged at
    the top frame from ``gas_left`` (not the intrinsic), so ``gas_limit``
    must cover it on top of the initcode. The block state gas is the
    created contract's ``NEW_ACCOUNT`` plus the fresh beneficiary's
    ``NEW_ACCOUNT`` charged by the SELFDESTRUCT.
    """
    gas_costs = fork.gas_costs()
    create_state_gas = fork.create_state_gas(code_size=0)

    beneficiary = 0xDEAD
    # `account_new` folds the beneficiary's `ACCOUNT_WRITE` regular
    # cost and account-creation state gas into `gas_cost`.
    initcode = Op.SELFDESTRUCT(beneficiary, account_new=True)

    sender = pre.fund_eoa()
    intrinsic_calc = fork.transaction_intrinsic_cost_calculator()
    intrinsic_regular = intrinsic_calc(
        calldata=bytes(initcode), contract_creation=True, sends_value=True
    )

    # State: the created contract's top-frame NEW_ACCOUNT plus the fresh
    # beneficiary's NEW_ACCOUNT from the SELFDESTRUCT.
    expected_state = create_state_gas + gas_costs.NEW_ACCOUNT

    initcode_gas = initcode.gas_cost(fork)
    gas_limit = intrinsic_regular + gas_costs.NEW_ACCOUNT + initcode_gas + 1000

    tx = Transaction(
        sender=sender,
        to=None,
        data=initcode,
        value=1,
        gas_limit=gas_limit,
    )

    blockchain_test(
        pre=pre,
        blocks=[
            Block(
                txs=[tx],
                header_verify=Header(gas_used=expected_state),
            ),
        ],
        post={},
    )

Parametrized Test Cases

This test generates 1 parametrized test case across 1 fork.