test_call_value_precompile_halt_refunds_new_account_state_gas()

Documentation for tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_call.py::test_call_value_precompile_halt_refunds_new_account_state_gas@87aba1a3.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_state_gas_call.py::test_call_value_precompile_halt_refunds_new_account_state_gas --fork Amsterdam

Refill NEW_ACCOUNT state gas on a value CALL to an unfunded precompile that halts in the child frame.

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

@pytest.mark.valid_from("EIP8037")
def test_call_value_precompile_halt_refunds_new_account_state_gas(
    state_test: StateTestFiller,
    pre: Alloc,
    fork: Fork,
) -> None:
    """
    Refill NEW_ACCOUNT state gas on a value CALL to an unfunded
    precompile that halts in the child frame.
    """
    gas_costs = fork.gas_costs()
    sstore_state_gas = Op.SSTORE(new_value=1).state_cost(fork)
    new_account_state_gas = gas_costs.NEW_ACCOUNT

    probe_storage = Storage()
    probe_code = Op.SSTORE(probe_storage.store_next(1, "probe_ran"), 1)
    probe = pre.deploy_contract(probe_code)

    probe_stipend = probe_code.regular_cost(fork)

    ecpairing = 0x08

    parent = pre.deploy_contract(
        code=(
            Op.POP(Op.CALL(1, ecpairing, 1, 0, 0, 0, 0))
            + Op.POP(Op.CALL(gas=probe_stipend, address=probe))
        ),
        balance=1,
    )

    assert new_account_state_gas >= sstore_state_gas
    reservoir = new_account_state_gas

    tx = Transaction(
        to=parent,
        state_gas_reservoir=reservoir,
        sender=pre.fund_eoa(),
    )

    post = {probe: Account(storage=probe_storage)}
    state_test(pre=pre, post=post, tx=tx)

Parametrized Test Cases

This test generates 1 parametrized test case across 1 fork.