test_max_blobs_per_tx_fork_transition()

Documentation for tests/osaka/eip7594_peerdas/test_max_blob_per_tx.py::test_max_blobs_per_tx_fork_transition@2867859a.

Generate fixtures for these test cases for Osaka with:

fill -v tests/osaka/eip7594_peerdas/test_max_blob_per_tx.py::test_max_blobs_per_tx_fork_transition --fork Osaka

Test MAX_BLOBS_PER_TX limit enforcement across fork transition.

Source code in tests/osaka/eip7594_peerdas/test_max_blob_per_tx.py

@pytest.mark.parametrize_by_fork(
    "blob_count",
    lambda fork: [
        fork.transitions_to().max_blobs_per_tx() + 1,
        fork.transitions_to().max_blobs_per_block() + 1,
    ],
)
@pytest.mark.valid_at_transition_to("Osaka")
@pytest.mark.exception_test
def test_max_blobs_per_tx_fork_transition(
    fork: TransitionFork,
    blockchain_test: BlockchainTestFiller,
    env: Environment,
    pre: Alloc,
    tx: Transaction,
    blob_count: int,
) -> None:
    """Test `MAX_BLOBS_PER_TX` limit enforcement across fork transition."""
    expected_exception = (
        TransactionException.TYPE_3_TX_MAX_BLOB_GAS_ALLOWANCE_EXCEEDED
        if blob_count > fork.transitions_to().max_blobs_per_block()
        else TransactionException.TYPE_3_TX_BLOB_COUNT_EXCEEDED
    )
    pre_fork_block = Block(
        txs=[
            tx
            if blob_count < fork.transitions_from().max_blobs_per_block()
            else tx.with_error(expected_exception)
        ],
        timestamp=fork.at_timestamp - 1,
        exception=None
        if blob_count < fork.transitions_from().max_blobs_per_block()
        else [expected_exception],
    )
    fork_block = Block(
        txs=[tx.with_nonce(1).with_error(expected_exception)],
        timestamp=fork.at_timestamp,
        exception=[expected_exception],
    )
    post_fork_block = Block(
        txs=[tx.with_nonce(1).with_error(expected_exception)],
        timestamp=fork.at_timestamp + 1,
        exception=[expected_exception],
    )
    blockchain_test(
        pre=pre,
        post={},
        blocks=[pre_fork_block, fork_block, post_fork_block],
        genesis_environment=env,
    )

Parametrized Test Cases

This test generates 2 parametrized test cases across 1 fork.