test_call_with_value_to_coinbase_no_priority_fee_log()

Documentation for tests/amsterdam/eip7708_eth_transfer_logs/test_transfer_logs.py::test_call_with_value_to_coinbase_no_priority_fee_log@2119b382.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip7708_eth_transfer_logs/test_transfer_logs.py::test_call_with_value_to_coinbase_no_priority_fee_log --fork Amsterdam

Verify no Transfer log is emitted for the coinbase priority fee.

A contract executes CALL with nonzero value to the coinbase address, and the transaction pays a nonzero priority fee to that same coinbase. Only the CALL-with-value must produce a Transfer log; the priority fee crediting happens outside the EVM as a protocol-level balance change and must not emit a log.

An implementation that hooks all balance additions (instead of only CALL / SELFDESTRUCT / tx-level value transfers) would emit an extra Transfer log for the fee and fail the exact-log assertion.

Source code in tests/amsterdam/eip7708_eth_transfer_logs/test_transfer_logs.py

@pytest.mark.execute(pytest.mark.skip("Requires specific base fee"))
def test_call_with_value_to_coinbase_no_priority_fee_log(
    state_test: StateTestFiller,
    env: Environment,
    pre: Alloc,
    sender: EOA,
    fork: Fork,
) -> None:
    """
    Verify no Transfer log is emitted for the coinbase priority fee.

    A contract executes CALL with nonzero value to the coinbase address,
    and the transaction pays a nonzero priority fee to that same
    coinbase. Only the CALL-with-value must produce a Transfer log; the
    priority fee crediting happens outside the EVM as a protocol-level
    balance change and must not emit a log.

    An implementation that hooks all balance additions (instead of only
    CALL / SELFDESTRUCT / tx-level value transfers) would emit an extra
    Transfer log for the fee and fail the exact-log assertion.
    """
    coinbase = env.fee_recipient
    call_value = 1

    caller_code = Op.CALL(gas=Op.GAS, address=coinbase, value=call_value)
    caller = pre.deploy_contract(caller_code, balance=call_value)
    env.base_fee_per_gas = ZeroPaddedHexNumber(7)
    max_fee_per_gas = int(env.base_fee_per_gas) * 2
    tx = Transaction(
        sender=sender,
        to=caller,
        value=0,
        max_fee_per_gas=max_fee_per_gas,
        max_priority_fee_per_gas=max_fee_per_gas,
        expected_receipt=TransactionReceipt(
            logs=[transfer_log(caller, coinbase, call_value)]
        ),
    )

    state_test(env=env, pre=pre, post={}, tx=tx)

Parametrized Test Cases

This test generates 1 parametrized test case across 1 fork.