test_bal_withdrawal_and_new_contract()

Documentation for tests/amsterdam/eip7928_block_level_access_lists/test_block_access_lists_eip4895.py::test_bal_withdrawal_and_new_contract@5c024cbb.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip7928_block_level_access_lists/test_block_access_lists_eip4895.py::test_bal_withdrawal_and_new_contract --fork Amsterdam

Ensure BAL captures withdrawal to newly created contract.

Alice deploys Oracle contract with 5 gwei initial balance. Oracle receives withdrawal of 10 gwei in same block. Oracle ends with 15 gwei (5 from deployment + 10 from withdrawal).

Source code in tests/amsterdam/eip7928_block_level_access_lists/test_block_access_lists_eip4895.py

def test_bal_withdrawal_and_new_contract(
    pre: Alloc,
    blockchain_test: BlockchainTestFiller,
) -> None:
    """
    Ensure BAL captures withdrawal to newly created contract.

    Alice deploys Oracle contract with 5 gwei initial balance.
    Oracle receives withdrawal of 10 gwei in same block.
    Oracle ends with 15 gwei (5 from deployment + 10 from withdrawal).
    """
    alice = pre.fund_eoa()

    code = Op.STOP
    initcode = Initcode(deploy_code=code)
    oracle = compute_create_address(address=alice)

    tx = Transaction(
        sender=alice,
        to=None,
        data=initcode,
        value=5 * GWEI,
    )

    block = Block(
        txs=[tx],
        withdrawals=[
            Withdrawal(
                index=0,
                validator_index=0,
                address=oracle,
                amount=10,
            )
        ],
        expected_block_access_list=BlockAccessListExpectation(
            account_expectations={
                alice: BalAccountExpectation(
                    nonce_changes=[
                        BalNonceChange(block_access_index=1, post_nonce=1)
                    ],
                ),
                oracle: BalAccountExpectation(
                    code_changes=[
                        BalCodeChange(block_access_index=1, new_code=code)
                    ],
                    balance_changes=[
                        BalBalanceChange(
                            block_access_index=1, post_balance=5 * GWEI
                        ),
                        BalBalanceChange(
                            block_access_index=2, post_balance=15 * GWEI
                        ),
                    ],
                ),
            }
        ),
    )

    blockchain_test(
        pre=pre,
        blocks=[block],
        post={
            alice: Account(nonce=1),
            oracle: Account(balance=15 * GWEI, code=code),
        },
    )

Parametrized Test Cases

This test generates 1 parametrized test case across 1 fork.