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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@01f496f4.

Generate fixtures for these test cases for Prague with:

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

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 
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@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, blob_gas_price=2)
            // (
                fork.max_blobs_per_block(timestamp=FORK_TIMESTAMP)
                - fork.target_blobs_per_block(timestamp=FORK_TIMESTAMP)
            )
            + 2,
            fork.max_blobs_per_block(timestamp=0),
            fork.max_blobs_per_block(timestamp=FORK_TIMESTAMP),
            id="max_blobs",
        ),
        pytest.param(
            10,
            0,
            fork.max_blobs_per_block(timestamp=FORK_TIMESTAMP),
            id="no_blobs_before",
        ),
        pytest.param(
            10,
            fork.max_blobs_per_block(timestamp=0),
            0,
            id="no_blobs_after",
        ),
        pytest.param(
            10,
            fork.target_blobs_per_block(timestamp=0),
            fork.target_blobs_per_block(timestamp=FORK_TIMESTAMP),
            id="target_blobs",
        ),
        pytest.param(
            10,
            1,
            fork.max_blobs_per_block(timestamp=FORK_TIMESTAMP),
            id="single_blob_to_max_blobs",
        ),
        pytest.param(
            10,
            fork.max_blobs_per_block(timestamp=0),
            1,
            id="max_blobs_to_single_blob",
        ),
    ],
)
def test_fork_transition_excess_blob_gas_post_blob_genesis(
    blockchain_test: BlockchainTestFiller,
    env: Environment,
    pre: Alloc,
    pre_fork_blocks: List[Block],
    post_fork_blocks: List[Block],
    post: Mapping[Address, Account],
):
    """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=env,
    )

Parametrized Test Cases

This test case is only parametrized by fork.

Test ID (Abbreviated) post_fork_block_count pre_fork_blobs_per_block post_fork_blobs_per_block
...fork_CancunToPragueAtTime15k-max_blobs-blockchain_test 11 6 9
...fork_CancunToPragueAtTime15k-no_blobs_before-blockchain_test 10 0 9
...fork_CancunToPragueAtTime15k-no_blobs_after-blockchain_test 10 6 0
...fork_CancunToPragueAtTime15k-target_blobs-blockchain_test 10 3 6
...fork_CancunToPragueAtTime15k-single_blob_to_max_blobs-blockchain_test 10 1 9
...fork_CancunToPragueAtTime15k-max_blobs_to_single_blob-blockchain_test 10 6 1