test_mixed_new_and_existing_auths()

Documentation for tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_set_code.py::test_mixed_new_and_existing_auths@87aba1a3.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_set_code.py::test_mixed_new_and_existing_auths --fork Amsterdam

Test mixed new and existing account authorizations at the top frame.

One authority is an existing EOA (charged only AUTH_BASE); the other does not exist pre-tx (charged NEW_ACCOUNT + ACCOUNT_WRITE for the leaf plus AUTH_BASE for the net-new indicator). The total top-frame charge is the sum of the two, with no refund.

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

@pytest.mark.valid_from("EIP8037")
def test_mixed_new_and_existing_auths(
    state_test: StateTestFiller,
    pre: Alloc,
    fork: Fork,
) -> None:
    """
    Test mixed new and existing account authorizations at the top frame.

    One authority is an existing EOA (charged only ``AUTH_BASE``); the
    other does not exist pre-tx (charged ``NEW_ACCOUNT`` + ``ACCOUNT_WRITE``
    for the leaf plus ``AUTH_BASE`` for the net-new indicator). The total
    top-frame charge is the sum of the two, with no refund.
    """
    contract = pre.deploy_contract(code=Op.STOP)

    existing_signer = pre.fund_eoa()
    new_signer = pre.fund_eoa(amount=0)

    authorization_list = [
        AuthorizationTuple(
            address=contract,
            nonce=0,
            signer=existing_signer,
            creates_account=False,
            writes_delegation=True,
        ),
        AuthorizationTuple(
            address=contract,
            nonce=0,
            signer=new_signer,
            creates_account=True,
            writes_delegation=True,
        ),
    ]

    intrinsic_regular, top_frame_regular, top_frame_state = _auth_gas(
        fork, authorization_list
    )
    cumulative_gas_used, header_gas_used = _receipt_and_header(
        intrinsic_regular, top_frame_regular, top_frame_state
    )

    tx = Transaction(
        to=contract,
        authorization_list=authorization_list,
        sender=pre.fund_eoa(),
        expected_receipt=TransactionReceipt(
            cumulative_gas_used=cumulative_gas_used,
        ),
    )

    post = {
        existing_signer: Account(
            code=Spec7702.delegation_designation(contract),
        ),
        new_signer: Account(
            nonce=1,
            balance=0,
            code=Spec7702.delegation_designation(contract),
        ),
    }
    state_test(
        pre=pre,
        post=post,
        tx=tx,
        blockchain_test_header_verify=Header(gas_used=header_gas_used),
    )

Parametrized Test Cases

This test generates 1 parametrized test case across 1 fork.