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test_dynamic_create2_selfdestruct_collision()

Documentation for tests/cancun/eip6780_selfdestruct/test_dynamic_create2_selfdestruct_collision.py::test_dynamic_create2_selfdestruct_collision@88e9fb8f.

Generate fixtures for these test cases for Osaka with:

fill -v tests/cancun/eip6780_selfdestruct/test_dynamic_create2_selfdestruct_collision.py::test_dynamic_create2_selfdestruct_collision --fork Osaka

Dynamic Create2->Suicide->Create2 collision scenario.

Perform a CREATE2, make sure that the initcode sets at least a couple of storage keys, then on a different call, in the same tx, perform a self-destruct. Then: a) on the same tx, attempt to recreate the contract -> Covered in this test 1) and create2 contract already in the state 2) and create2 contract is not in the state b) on a different tx, attempt to recreate the contract

Perform a CREATE2, make sure that the initcode sets at least a couple of storage keys, then in a different tx, perform a self-destruct.

Then

a) on the same tx, attempt to recreate the contract b) on a different tx, attempt to recreate the contract

Check the test case described in https://lf-hyperledger.atlassian.net/wiki/spaces/BESU/pages/ 22156575/2024-01-06+Mainnet+Halting+Event

Source code in tests/cancun/eip6780_selfdestruct/test_dynamic_create2_selfdestruct_collision.py 
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@pytest.mark.valid_from("Paris")
@pytest.mark.parametrize(
    "create2_dest_already_in_state",
    (pytest.param(True, marks=pytest.mark.execute(pytest.mark.skip("Modifies pre"))), False),
)
@pytest.mark.parametrize(
    "call_create2_contract_in_between,call_create2_contract_at_the_end",
    [
        (True, True),
        (True, False),
        (False, True),
    ],
)
def test_dynamic_create2_selfdestruct_collision(
    fork: Fork,
    create2_dest_already_in_state: bool,
    call_create2_contract_in_between: bool,
    call_create2_contract_at_the_end: bool,
    pre: Alloc,
    state_test: StateTestFiller,
) -> None:
    """
    Dynamic Create2->Suicide->Create2 collision scenario.

    Perform a CREATE2, make sure that the initcode sets at least a couple of
    storage keys, then on a different call, in the same tx, perform a
    self-destruct.
    Then:
      a) on the same tx, attempt to recreate the contract
         -> Covered in this test
           1) and create2 contract already in the state
           2) and create2 contract is not in the state
      b) on a different tx, attempt to recreate the contract

    Perform a CREATE2, make sure that the initcode sets at least a couple
    of storage keys, then in a different tx, perform a self-destruct.

    Then:
      a) on the same tx, attempt to recreate the contract
      b) on a different tx, attempt to recreate the contract

    Check the test case described in
    https://lf-hyperledger.atlassian.net/wiki/spaces/BESU/pages/
    22156575/2024-01-06+Mainnet+Halting+Event
    """
    assert call_create2_contract_in_between or call_create2_contract_at_the_end, "invalid test"

    # Storage locations
    create2_constructor_worked = 1
    first_create2_result = 2
    second_create2_result = 3
    code_worked = 4

    # Constants
    address_zero = Address(0x00)
    create2_salt = 1

    # Create EOA for sendall destination (receives selfdestruct funds)
    sendall_destination = pre.fund_eoa(0)  # Will be funded by selfdestruct
    # calls

    # Create storage contract that will be called during initialization
    address_create2_storage = pre.deploy_contract(
        code=Op.SSTORE(1, 1),
        balance=7000000000000000000,
    )

    # CREATE2 Initcode
    deploy_code = Op.SELFDESTRUCT(sendall_destination)
    initcode = Initcode(
        deploy_code=deploy_code,
        initcode_prefix=Op.SSTORE(create2_constructor_worked, 1)
        + Op.CALL(Op.GAS(), address_create2_storage, 0, 0, 0, 0, 0),
    )

    # Create the contract that performs CREATE2 operations
    address_code = pre.deploy_contract(
        code=Op.CALLDATACOPY(0, 0, Op.CALLDATASIZE())
        + Op.MSTORE(
            0,
            Op.CREATE2(Op.SELFBALANCE(), 0, Op.CALLDATASIZE(), create2_salt),
        )
        + Op.RETURN(0, 32),
    )

    # Created addresses - now we can compute create2_address
    create2_address = compute_create2_address(address_code, create2_salt, initcode)
    call_address_in_between = create2_address if call_create2_contract_in_between else address_zero
    call_address_in_the_end = create2_address if call_create2_contract_at_the_end else address_zero

    # Values
    pre_existing_create2_balance = 1
    first_create2_value = 10
    first_call_value = 100
    second_create2_value = 1000
    second_call_value = 10000

    # Create the main contract that orchestrates the test
    address_to = pre.deploy_contract(
        code=Op.JUMPDEST()
        # Make a subcall that do CREATE2 and returns its the result
        + Op.CALLDATACOPY(0, 0, Op.CALLDATASIZE())
        + Op.CALL(100000, address_code, first_create2_value, 0, Op.CALLDATASIZE(), 0, 32)
        + Op.SSTORE(
            first_create2_result,
            Op.MLOAD(0),
        )
        # In case the create2 didn't work, flush account balance
        + Op.CALL(100000, address_code, 0, 0, 0, 0, 0)
        # Call to the created account to trigger selfdestruct
        + Op.CALL(100000, call_address_in_between, first_call_value, 0, 0, 0, 0)
        # Make a subcall that do CREATE2 collision and returns its address as
        # the result
        + Op.CALLDATACOPY(0, 0, Op.CALLDATASIZE())
        + Op.CALL(100000, address_code, second_create2_value, 0, Op.CALLDATASIZE(), 0, 32)
        + Op.SSTORE(
            second_create2_result,
            Op.MLOAD(0),
        )
        # Call to the created account to trigger selfdestruct
        + Op.CALL(100000, call_address_in_the_end, second_call_value, 0, 0, 0, 0)
        + Op.SSTORE(code_worked, 1),
        balance=100000000,
        storage={first_create2_result: 0xFF, second_create2_result: 0xFF},
    )

    # Create the sender EOA
    sender = pre.fund_eoa(7000000000000000000)

    if create2_dest_already_in_state:
        # Create2 address already in the state, e.g. deployed in a previous
        # block
        pre[create2_address] = Account(
            balance=pre_existing_create2_balance,
            nonce=1,
            code=deploy_code,
            storage={},
        )

    post: Dict[Address, Union[Account, object]] = {}

    # Create2 address only exists if it was pre-existing and after cancun
    post[create2_address] = (
        Account(balance=0, nonce=1, code=deploy_code, storage={create2_constructor_worked: 0x00})
        if create2_dest_already_in_state and fork >= Cancun
        else Account.NONEXISTENT
    )

    # Create2 initcode is only executed if the contract did not already exist
    post[address_create2_storage] = Account(
        storage={create2_constructor_worked: int(not create2_dest_already_in_state)}
    )

    # Entry code that makes the calls to the create2 contract creator
    post[address_to] = Account(
        storage={
            code_worked: 0x01,
            # First create2 only works if the contract was not preexisting
            first_create2_result: 0x00 if create2_dest_already_in_state else create2_address,
            # Second create2 must never work
            second_create2_result: 0x00,
        }
    )

    # Calculate the destination account expected balance for the
    # selfdestruct/sendall calls
    sendall_destination_balance = (
        pre_existing_create2_balance if create2_dest_already_in_state else first_create2_value
    )

    if call_create2_contract_in_between:
        sendall_destination_balance += first_call_value

    if call_create2_contract_at_the_end:
        sendall_destination_balance += second_call_value

    post[sendall_destination] = Account(balance=sendall_destination_balance)

    tx = Transaction(
        to=address_to,
        data=initcode,
        gas_limit=5_000_000,
        sender=sender,
    )

    state_test(pre=pre, post=post, tx=tx)

Parametrized Test Cases

The interactive table below is also available as a standalone page.

Test ID (Abbreviated) call_create2_contract_in_between call_create2_contract_at_the_end create2_dest_already_in_state
...fork_Paris-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Paris-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Paris-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Paris-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Paris-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Paris-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Paris-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Paris-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Paris-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Paris-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Paris-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Paris-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Shanghai-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Shanghai-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Shanghai-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Shanghai-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Shanghai-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Shanghai-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Shanghai-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Shanghai-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Shanghai-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Shanghai-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Shanghai-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Shanghai-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Cancun-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Cancun-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Cancun-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Cancun-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Cancun-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Cancun-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Cancun-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Cancun-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Cancun-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Cancun-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Cancun-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Cancun-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Prague-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Prague-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Prague-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Prague-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Prague-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Prague-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Prague-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Prague-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Prague-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Prague-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Prague-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Prague-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Osaka-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Osaka-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Osaka-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Osaka-state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Osaka-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Osaka-state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False
...fork_Osaka-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True True True True
...fork_Osaka-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False True True False
...fork_Osaka-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_True True False True
...fork_Osaka-blockchain_test_from_state_test-call_create2_contract_in_between_True-call_create2_contract_at_the_end_False-create2_dest_already_in_state_False True False False
...fork_Osaka-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_True False True True
...fork_Osaka-blockchain_test_from_state_test-call_create2_contract_in_between_False-call_create2_contract_at_the_end_True-create2_dest_already_in_state_False False True False