test_create_tx_balance_only_target()

Documentation for tests/frontier/create/test_create_collision.py::test_create_tx_balance_only_target@49633827.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/frontier/create/test_create_collision.py::test_create_tx_balance_only_target --fork Amsterdam

Test that a contract creation transaction succeeds when the target address has only a balance: an account with zero nonce, no code and no storage is not a collision (EIP-684).

Source code in tests/frontier/create/test_create_collision.py

@pytest.mark.with_all_contract_creating_tx_types
def test_create_tx_balance_only_target(
    state_test: StateTestFiller,
    pre: Alloc,
    tx_type: int,
) -> None:
    """
    Test that a contract creation transaction succeeds when the target
    address has only a balance: an account with zero nonce, no code and
    no storage is not a collision (EIP-684).
    """
    tx = Transaction(
        sender=pre.fund_eoa(),
        ty=tx_type,
        to=None,
        data=CORRECT_INITCODE,
        protected=False,
    )

    created_contract_address = tx.created_contract

    pre[created_contract_address] = Account(balance=1)

    state_test(
        pre=pre,
        post={
            created_contract_address: Account(
                balance=1,
                code=CORRECT_INITCODE.deploy_code,
                storage={0x00: 0x01},
            ),
        },
        tx=tx,
    )

Parametrized Test Cases

This test generates 3 parametrized test cases across 16 forks.