Test Point Evaluation Precompile Gas

Documentation for tests/cancun/eip4844_blobs/test_point_evaluation_precompile_gas.py.

Generate fixtures for these test cases for Cancun with:

Cancun only:

fill -v tests/cancun/eip4844_blobs/test_point_evaluation_precompile_gas.py --fork=Cancun --evm-bin=/path/to/evm-tool-dev-version

For all forks up to and including Cancun:

fill -v tests/cancun/eip4844_blobs/test_point_evaluation_precompile_gas.py --until=Cancun --evm-bin=/path/to/evm-tool-dev-version

abstract: Tests gas usage on point evaluation precompile for EIP-4844: Shard Blob Transactions

Test gas usage on point evaluation precompile for [EIP-4844: Shard Blob Transactions](https://eips.ethereum.org/EIPS/eip-4844).

test_point_evaluation_precompile_gas_usage(blockchain_test, pre, tx, post)

Test point evaluation precompile gas usage under different call contexts and gas limits:

• Test using all call types (CALL, DELEGATECALL, CALLCODE, STATICCALL)
• Test using different gas limits (exact gas, insufficient gas, extra gas)
• Test using correct and incorrect proofs

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

@pytest.mark.parametrize(
    "call_type",
    [Op.CALL, Op.DELEGATECALL, Op.CALLCODE, Op.STATICCALL],
)
@pytest.mark.parametrize(
    "call_gas",
    [
        Spec.POINT_EVALUATION_PRECOMPILE_GAS,
        Spec.POINT_EVALUATION_PRECOMPILE_GAS - 1,
        Spec.POINT_EVALUATION_PRECOMPILE_GAS + 1,
    ],
    ids=["exact_gas", "insufficient_gas", "extra_gas"],
)
@pytest.mark.parametrize("proof", ["correct", "incorrect"])
@pytest.mark.valid_from("Cancun")
def test_point_evaluation_precompile_gas_usage(
    blockchain_test: BlockchainTestFiller,
    pre: Dict,
    tx: Transaction,
    post: Dict,
):
    """
    Test point evaluation precompile gas usage under different call contexts and gas limits:

    - Test using all call types (CALL, DELEGATECALL, CALLCODE, STATICCALL)
    - Test using different gas limits (exact gas, insufficient gas, extra gas)
    - Test using correct and incorrect proofs
    """
    blockchain_test(
        pre=pre,
        post=post,
        blocks=[Block(txs=[tx])],
    )