test_correct_increasing_blob_gas_costs()

Documentation for tests/cancun/eip4844_blobs/test_excess_blob_gas.py::test_correct_increasing_blob_gas_costs@e9958ed2.

Generate fixtures for these test cases for Osaka with:

fill -v tests/cancun/eip4844_blobs/test_excess_blob_gas.py::test_correct_increasing_blob_gas_costs --fork Osaka

Test calculation of the excessBlobGas and blob gas tx costs at value points where the cost increases to interesting amounts.

• At the first blob gas cost increase (1 to 2)
• At total transaction data cost increase to > 2^32
• At blob gas wei cost increase to > 2^32
• At total transaction data cost increase to > 2^64
• At blob gas wei cost increase to > 2^64
• At blob gas wei cost increase of around current total Ether supply

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

@pytest.mark.parametrize_by_fork(
    "parent_excess_blobs",
    generate_blob_gas_cost_increases_tests(-1),
)
@pytest.mark.parametrize_by_fork(
    "parent_blobs",
    lambda fork: [fork.target_blobs_per_block() + 1],
)
@pytest.mark.parametrize("new_blobs", [1])
def test_correct_increasing_blob_gas_costs(
    blockchain_test: BlockchainTestFiller,
    env: Environment,
    pre: Mapping[Address, Account],
    blocks: List[Block],
    post: Mapping[Address, Account],
    correct_excess_blob_gas: int,
) -> None:
    """
    Test calculation of the `excessBlobGas` and blob gas tx costs at value
    points where the cost increases to interesting amounts.

    - At the first blob gas cost increase (1 to 2)
    - At total transaction data cost increase to `> 2^32`
    - At blob gas wei cost increase to `> 2^32`
    - At total transaction data cost increase to `> 2^64`
    - At blob gas wei cost increase to `> 2^64`
    - At blob gas wei cost increase of around current total Ether supply
    """
    blockchain_test(
        pre=pre,
        post=post,
        blocks=blocks,
        genesis_environment=env,
        tag=f"expected_excess_blob_gas:{hex(correct_excess_blob_gas)}",
    )

Parametrized Test Cases

The interactive table below is also available as a standalone page.

Fork All Forks Cancun Prague Osaka

Fixture Type All Fixture Types blockchain_test

Test ID (Abbreviated)	parent_blobs	parent_excess_blobs	new_blobs
...fork_Cancun-parent_blobs_4-parent_excess_blobs_17-blockchain_test-new_blobs_1	4	17	1
...fork_Cancun-parent_blobs_4-parent_excess_blobs_264-blockchain_test-new_blobs_1	4	264	1
...fork_Cancun-parent_blobs_4-parent_excess_blobs_564-blockchain_test-new_blobs_1	4	564	1
...fork_Cancun-parent_blobs_4-parent_excess_blobs_829-blockchain_test-new_blobs_1	4	829	1
...fork_Cancun-parent_blobs_4-parent_excess_blobs_1129-blockchain_test-new_blobs_1	4	1129	1
...fork_Cancun-parent_blobs_4-parent_excess_blobs_1229-blockchain_test-new_blobs_1	4	1229	1
...fork_Prague-parent_blobs_7-parent_excess_blobs_26-blockchain_test-new_blobs_1	7	26	1
...fork_Prague-parent_blobs_7-parent_excess_blobs_397-blockchain_test-new_blobs_1	7	397	1
...fork_Prague-parent_blobs_7-parent_excess_blobs_847-blockchain_test-new_blobs_1	7	847	1
...fork_Prague-parent_blobs_7-parent_excess_blobs_1244-blockchain_test-new_blobs_1	7	1244	1
...fork_Prague-parent_blobs_7-parent_excess_blobs_1694-blockchain_test-new_blobs_1	7	1694	1
...fork_Prague-parent_blobs_7-parent_excess_blobs_1844-blockchain_test-new_blobs_1	7	1844	1
...fork_Osaka-parent_blobs_7-parent_excess_blobs_26-blockchain_test-new_blobs_1	7	26	1
...fork_Osaka-parent_blobs_7-parent_excess_blobs_397-blockchain_test-new_blobs_1	7	397	1
...fork_Osaka-parent_blobs_7-parent_excess_blobs_847-blockchain_test-new_blobs_1	7	847	1
...fork_Osaka-parent_blobs_7-parent_excess_blobs_1244-blockchain_test-new_blobs_1	7	1244	1
...fork_Osaka-parent_blobs_7-parent_excess_blobs_1694-blockchain_test-new_blobs_1	7	1694	1
...fork_Osaka-parent_blobs_7-parent_excess_blobs_1844-blockchain_test-new_blobs_1	7	1844	1