test_invalid_pre_fork_block_with_blob_fields()

Documentation for tests/cancun/eip4844_blobs/test_excess_blob_gas_fork_transition.py::test_invalid_pre_fork_block_with_blob_fields@892e6d1e.

Generate fixtures for these test cases for Cancun with:

fill -v tests/cancun/eip4844_blobs/test_excess_blob_gas_fork_transition.py::test_invalid_pre_fork_block_with_blob_fields --fork Cancun

Test block rejection when excessBlobGas and/or blobGasUsed fields are present on a pre-fork block.

Blocks sent by NewPayloadV2 (Shanghai) that contain excessBlobGas and blobGasUsed fields must be rejected with the appropriate EngineAPIError.InvalidParams error.

Source code in tests/cancun/eip4844_blobs/test_excess_blob_gas_fork_transition.py

@pytest.mark.valid_at_transition_to("Cancun", subsequent_forks=False)
@pytest.mark.parametrize(
    "excess_blob_gas_present,blob_gas_used_present",
    [
        (True, False),
        (False, True),
        (True, True),
    ],
)
@pytest.mark.exception_test
def test_invalid_pre_fork_block_with_blob_fields(
    blockchain_test: BlockchainTestFiller,
    genesis_environment: Environment,
    pre: Alloc,
    pre_fork_blocks: List[Block],
    excess_blob_gas_present: bool,
    blob_gas_used_present: bool,
) -> None:
    """
    Test block rejection when `excessBlobGas` and/or `blobGasUsed` fields are
    present on a pre-fork block.

    Blocks sent by NewPayloadV2 (Shanghai) that contain `excessBlobGas` and
    `blobGasUsed` fields must be rejected with the appropriate
    `EngineAPIError.InvalidParams` error.
    """
    header_modifier = Header(
        excess_blob_gas=0 if excess_blob_gas_present else None,
        blob_gas_used=0 if blob_gas_used_present else None,
    )
    blockchain_test(
        pre=pre,
        post={},
        blocks=pre_fork_blocks[:-1]
        + [
            Block(
                timestamp=(FORK_TIMESTAMP - 1),
                rlp_modifier=header_modifier,
                exception=BlockException.INCORRECT_BLOCK_FORMAT,
                engine_api_error_code=EngineAPIError.InvalidParams,
            )
        ],
        genesis_environment=genesis_environment,
    )

Parametrized Test Cases

This test generates 3 parametrized test cases across 1 fork.