test_fork_transition_excess_blob_gas_post_blob_genesis()

Documentation for tests/cancun/eip4844_blobs/test_excess_blob_gas_fork_transition.py::test_fork_transition_excess_blob_gas_post_blob_genesis@20373115.

Generate fixtures for these test cases for BPO2 with:

fill -v tests/cancun/eip4844_blobs/test_excess_blob_gas_fork_transition.py::test_fork_transition_excess_blob_gas_post_blob_genesis --fork BPO2

Test excessBlobGas calculation in the header when the fork is activated.

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

@pytest.mark.valid_for_bpo_forks
@pytest.mark.valid_at_transition_to("Prague", subsequent_forks=True)
@pytest.mark.parametrize_by_fork(
    "post_fork_block_count,pre_fork_blobs_per_block,post_fork_blobs_per_block",
    lambda fork: [
        pytest.param(
            SpecHelpers.get_min_excess_blobs_for_blob_gas_price(
                fork=fork.transitions_from(), blob_gas_price=2
            )
            // (
                fork.transitions_to().max_blobs_per_block()
                - fork.transitions_to().target_blobs_per_block()
            )
            + 2,
            fork.transitions_from().max_blobs_per_block(),
            fork.transitions_to().max_blobs_per_block(),
            id="max_blobs_before_and_after",
        ),
        pytest.param(
            10,
            0,
            fork.transitions_to().max_blobs_per_block(),
            id="no_blobs_before_and_max_blobs_after",
        ),
        pytest.param(
            10,
            fork.transitions_from().max_blobs_per_block(),
            0,
            id="max_blobs_before_and_no_blobs_after",
        ),
        pytest.param(
            10,
            fork.transitions_from().target_blobs_per_block(),
            fork.transitions_to().target_blobs_per_block(),
            id="target_blobs_before_and_after",
        ),
        pytest.param(
            10,
            1,
            fork.transitions_to().max_blobs_per_block(),
            id="single_blob_before_and_max_blobs_after",
        ),
        pytest.param(
            10,
            fork.transitions_from().max_blobs_per_block(),
            1,
            id="max_blobs_before_and_single_blob_after",
        ),
    ],
)
@pytest.mark.parametrize("block_base_fee_per_gas", [7, 16, 23])
@pytest.mark.slow
def test_fork_transition_excess_blob_gas_post_blob_genesis(
    blockchain_test: BlockchainTestFiller,
    genesis_environment: Environment,
    pre: Alloc,
    pre_fork_blocks: List[Block],
    post_fork_blocks: List[Block],
    post: Mapping[Address, Account],
) -> None:
    """
    Test `excessBlobGas` calculation in the header when the fork is activated.
    """
    blockchain_test(
        pre=pre,
        post=post,
        blocks=pre_fork_blocks + post_fork_blocks,
        genesis_environment=genesis_environment,
    )

Parametrized Test Cases

This test generates 18 parametrized test cases across 3 forks.