test_call_to_self_no_log()

Documentation for tests/amsterdam/eip7708_eth_transfer_logs/test_transfer_logs.py::test_call_to_self_no_log@a9abd46e.

Generate fixtures for these test cases for Amsterdam with:

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

Test that CALL/CALLCODE with value to self emits no transfer log.

Uses CALLDATASIZE to detect recursion: external call has no calldata, recursive call passes 1 byte of calldata to signal stop.

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

@pytest.mark.parametrize(
    "call_opcode",
    [
        pytest.param(Op.CALL, id="call"),
        pytest.param(Op.CALLCODE, id="callcode"),
    ],
)
def test_call_to_self_no_log(
    state_test: StateTestFiller,
    env: Environment,
    pre: Alloc,
    sender: EOA,
    call_opcode: Op,
) -> None:
    """
    Test that CALL/CALLCODE with value to self emits no transfer log.

    Uses CALLDATASIZE to detect recursion: external call has no calldata,
    recursive call passes 1 byte of calldata to signal stop.
    """
    # CALLDATASIZE > 0 means recursive call, jump to end
    # Byte offsets: CALLDATASIZE(1) + PUSH1(2) + JUMPI(1) = 4
    # CALL with args_size=1: ~16 bytes, JUMPDEST at offset 20
    contract_code = (
        Op.CALLDATASIZE
        + Op.PUSH1(20)
        + Op.JUMPI
        + call_opcode(address=Op.ADDRESS, value=1, args_size=1)
        + Op.JUMPDEST
        + Op.STOP
    )
    contract = pre.deploy_contract(contract_code, balance=1)

    tx = Transaction(
        sender=sender,
        to=contract,
        value=0,
        expected_receipt=TransactionReceipt(logs=[]),
    )

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

Parametrized Test Cases

This test generates 2 parametrized test cases across 1 fork.