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test_state_charge_oog_full_burn_no_state_credit()

Documentation for tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_ordering.py::test_state_charge_oog_full_burn_no_state_credit@622620d8.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_ordering.py::test_state_charge_oog_full_burn_no_state_credit --fork Amsterdam

Verify every state charge burns the whole tx gas_limit when it OOGs.

The CREATE path is covered by test_create_oog_full_burn_no_state_credit; the same tx-end rule has to hold for the other three charges. Each frame is handed one gas less than its charge needs, so it runs out mid-charge and no state-gas leftover may be credited back at settlement.

Source code in tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_ordering.py 
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@pytest.mark.parametrize(
    "state_op_kind",
    [
        pytest.param("sstore", id="sstore_set"),
        pytest.param("call_new_account", id="call_new_account"),
        pytest.param("selfdestruct", id="selfdestruct_beneficiary"),
    ],
)
@pytest.mark.valid_from("EIP8037")
def test_state_charge_oog_full_burn_no_state_credit(
    blockchain_test: BlockchainTestFiller,
    pre: Alloc,
    fork: Fork,
    state_op_kind: str,
) -> None:
    """
    Verify every state charge burns the whole tx gas_limit when it OOGs.

    The CREATE path is covered by
    ``test_create_oog_full_burn_no_state_credit``; the same tx-end rule
    has to hold for the other three charges. Each frame is handed one gas
    less than its charge needs, so it runs out mid-charge and no
    state-gas leftover may be credited back at settlement.
    """
    if state_op_kind == "sstore":
        body = Op.SSTORE(0, 1)
        contract = pre.deploy_contract(body)
    elif state_op_kind == "call_new_account":
        body = Op.POP(
            Op.CALL(
                gas=0,
                address=pre.nonexistent_account(),
                value=1,
                value_transfer=True,
                account_new=True,
            )
        )
        contract = pre.deploy_contract(body, balance=1)
    else:
        body = Op.SELFDESTRUCT(pre.nonexistent_account(), account_new=True)
        contract = pre.deploy_contract(body, balance=1)

    assert body.state_cost(fork) > 0, "the op must carry a state charge"

    # One gas short of the full two-dimension cost, so the charge itself
    # is what runs out. The value call forwards a stipend the codeless
    # recipient returns unused, so that part is never needed.
    unused_stipend = (
        fork.call_value_stipend() if state_op_kind == "call_new_account" else 0
    )
    tx_gas_limit = (
        fork.transaction_intrinsic_cost_calculator()()
        + body.gas_cost(fork)
        - unused_stipend
        - 1
    )

    tx = Transaction(
        sender=pre.fund_eoa(),
        to=contract,
        gas_limit=tx_gas_limit,
        state_gas_reservoir=0,
    )

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

Parametrized Test Cases

This test generates 3 parametrized test cases across 1 fork.