test_sender_balance()¶

@pytest.mark.inclusion_test
@pytest.mark.parametrize(
    "balance_diff, expected_exception",
    [
        pytest.param(
            -1,
            TransactionException.INSUFFICIENT_ACCOUNT_FUNDS,
            marks=pytest.mark.exception_test,
        ),
        (0, None),  # Valid case - no exception
        (1, None),
    ],
)
@pytest.mark.eels_base_coverage
def test_sender_balance(
    blockchain_test: BlockchainTestFiller,
    pre: Alloc,
    env: Environment,
    fork: BaseFork,
    balance_diff: int,
    expected_exception: TransactionException | None,
) -> None:
    """
    Tests that the sender has sufficient balance.
    """
    to = pre.fund_eoa()

    intrinsic_cost = fork.transaction_intrinsic_cost_calculator()
    tx_gas_limit = intrinsic_cost()
    tx_gas_price = TransactionDefaults.gas_price
    tx_value = 0

    # Calculate required balance from tx fields and fund sender
    required_balance = tx_gas_limit * tx_gas_price + tx_value
    sender = pre.fund_eoa(amount=required_balance + balance_diff)

    # Create transaction first with defaults
    tx = Transaction(
        sender=sender,
        gas_limit=tx_gas_limit,
        gas_price=tx_gas_price,
        value=tx_value,
        to=to,
        protected=False,
        error=expected_exception,
    )

    block = Block(
        txs=[tx],
        exception=expected_exception,
    )

    blockchain_test(pre=pre, post={}, blocks=[block], genesis_environment=env)