test_account_state_gas_via_delegation_pointer()

Documentation for tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_delegation_pointer.py::test_account_state_gas_via_delegation_pointer@622620d8.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_delegation_pointer.py::test_account_state_gas_via_delegation_pointer --fork Amsterdam

Test account-creating charges are billed the same via a delegation pointer as they are directly.

Delegated code runs in the authority's context, so a CREATE takes the authority's nonce and a SELFDESTRUCT moves the authority's balance. Each still bills its state charge from the reservoir, and the header reports it in the state dimension.

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

@pytest.mark.parametrize(
    "state_op",
    [Op.CREATE, Op.CREATE2, Op.SELFDESTRUCT],
)
@pytest.mark.valid_from("EIP8037")
def test_account_state_gas_via_delegation_pointer(
    state_test: StateTestFiller,
    pre: Alloc,
    fork: Fork,
    state_op: Op,
) -> None:
    """
    Test account-creating charges are billed the same via a delegation
    pointer as they are directly.

    Delegated code runs in the authority's context, so a CREATE takes the
    authority's nonce and a SELFDESTRUCT moves the authority's balance.
    Each still bills its state charge from the reservoir, and the header
    reports it in the state dimension.
    """
    if state_op == Op.CREATE:
        code = Op.POP(Op.CREATE(0, 0, 0))
    elif state_op == Op.CREATE2:
        code = Op.POP(Op.CREATE2(0, 0, 0, 0))
    else:
        code = Op.SELFDESTRUCT(pre.nonexistent_account(), account_new=True)
    contract = pre.deploy_contract(code=code)

    delegator = pre.fund_eoa(delegation=contract, amount=1)
    state_gas = code.state_cost(fork)
    assert state_gas > 0, "the op must carry a state charge"

    tx = Transaction(
        to=delegator,
        state_gas_reservoir=state_gas,
        sender=pre.fund_eoa(),
    )

    state_test(
        pre=pre,
        post={},
        tx=tx,
        blockchain_test_header_verify=Header(gas_used=state_gas),
    )

Parametrized Test Cases

This test generates 3 parametrized test cases across 1 fork.