test_bal_nonexistent_value_transfer()

Documentation for tests/amsterdam/eip7928_block_level_access_lists/test_block_access_lists.py::test_bal_nonexistent_value_transfer@5c024cbb.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip7928_block_level_access_lists/test_block_access_lists.py::test_bal_nonexistent_value_transfer --fork Amsterdam

Ensure BAL captures non-existent account on value transfer.

Alice sends value directly to non-existent Bob.

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

@pytest.mark.parametrize(
    "value",
    [
        pytest.param(0, id="zero_value"),
        pytest.param(1, id="positive_value"),
    ],
)
def test_bal_nonexistent_value_transfer(
    pre: Alloc,
    blockchain_test: BlockchainTestFiller,
    value: int,
) -> None:
    """
    Ensure BAL captures non-existent account on value transfer.

    Alice sends value directly to non-existent Bob.
    """
    alice = pre.fund_eoa()
    bob = pre.nonexistent_account()

    tx = Transaction(sender=alice, to=bob, value=value)

    block = Block(
        txs=[tx],
        expected_block_access_list=BlockAccessListExpectation(
            account_expectations={
                alice: BalAccountExpectation(
                    nonce_changes=[
                        BalNonceChange(block_access_index=1, post_nonce=1)
                    ],
                ),
                bob: BalAccountExpectation(
                    balance_changes=[
                        BalBalanceChange(
                            block_access_index=1, post_balance=value
                        )
                    ]
                    if value > 0
                    else [],
                ),
            }
        ),
    )

    blockchain_test(
        pre=pre,
        blocks=[block],
        post={
            alice: Account(nonce=1),
            bob: Account(balance=value) if value > 0 else Account.NONEXISTENT,
        },
    )

Parametrized Test Cases

This test generates 2 parametrized test cases across 1 fork.