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test_invalid_post_fork_block_without_blob_fields()

Documentation for tests/cancun/eip4844_blobs/test_excess_blob_gas_fork_transition.py::test_invalid_post_fork_block_without_blob_fields@21fb11c8.

Generate fixtures for these test cases for Prague with:

fill -v tests/cancun/eip4844_blobs/test_excess_blob_gas_fork_transition.py::test_invalid_post_fork_block_without_blob_fields --fork Prague

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

Blocks sent by NewPayloadV3 (Cancun) without 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 
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@pytest.mark.valid_at_transition_to("Cancun")
@pytest.mark.parametrize(
    "excess_blob_gas_missing,blob_gas_used_missing",
    [
        (True, False),
        (False, True),
        (True, True),
    ],
)
def test_invalid_post_fork_block_without_blob_fields(
    blockchain_test: BlockchainTestFiller,
    env: Environment,
    pre: Alloc,
    pre_fork_blocks: List[Block],
    excess_blob_gas_missing: bool,
    blob_gas_used_missing: bool,
):
    """
    Test block rejection when `excessBlobGas` and/or `blobGasUsed` fields are missing on a
    post-fork block.

    Blocks sent by NewPayloadV3 (Cancun) without `excessBlobGas` and `blobGasUsed` fields must be
    rejected with the appropriate `EngineAPIError.InvalidParams` error.
    """
    header_modifier = Header()
    if excess_blob_gas_missing:
        header_modifier.excess_blob_gas = Header.REMOVE_FIELD
    if blob_gas_used_missing:
        header_modifier.blob_gas_used = Header.REMOVE_FIELD
    blockchain_test(
        pre=pre,
        post={},
        blocks=pre_fork_blocks
        + [
            Block(
                timestamp=FORK_TIMESTAMP,
                rlp_modifier=header_modifier,
                exception=BlockException.INCORRECT_BLOCK_FORMAT,
                engine_api_error_code=EngineAPIError.InvalidParams,
            )
        ],
        genesis_environment=env,
    )

Parametrized Test Cases

This test case is only parametrized by fork.

Test ID (Abbreviated) excess_blob_gas_missing blob_gas_used_missing
...fork_ShanghaiToCancunAtTime15k-blockchain_test-excess_blob_gas_missing_True-blob_gas_used_missing_False True False
...fork_ShanghaiToCancunAtTime15k-blockchain_test-excess_blob_gas_missing_False-blob_gas_used_missing_True False True
...fork_ShanghaiToCancunAtTime15k-blockchain_test-excess_blob_gas_missing_True-blob_gas_used_missing_True True True