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test_blobhash_gas_cost()

Documentation for tests/cancun/eip4844_blobs/test_blobhash_opcode.py::test_blobhash_gas_cost@verkle@v0.0.6.

Generate fixtures for these test cases for Cancun with:

Cancun only: 

fill -v tests/cancun/eip4844_blobs/test_blobhash_opcode.py::test_blobhash_gas_cost --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_blobhash_opcode.py::test_blobhash_gas_cost --until=Cancun

Tests BLOBHASH opcode gas cost using a variety of indexes.

Asserts that the gas consumption of the BLOBHASH opcode is correct by ensuring it matches HASH_OPCODE_GAS = 3. Includes both valid and invalid random index sizes from the range [0, 2**256-1], for tx types 2 and 3.

Source code in tests/cancun/eip4844_blobs/test_blobhash_opcode.py 
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@pytest.mark.parametrize("blobhash_index", blobhash_index_values)
@pytest.mark.with_all_tx_types
def test_blobhash_gas_cost(
    pre: Alloc,
    tx_type: int,
    blobhash_index: int,
    state_test: StateTestFiller,
):
    """
    Tests `BLOBHASH` opcode gas cost using a variety of indexes.

    Asserts that the gas consumption of the `BLOBHASH` opcode is correct by ensuring
    it matches `HASH_OPCODE_GAS = 3`. Includes both valid and invalid random
    index sizes from the range `[0, 2**256-1]`, for tx types 2 and 3.
    """
    gas_measure_code = CodeGasMeasure(
        code=Op.BLOBHASH(blobhash_index),
        overhead_cost=3,
        extra_stack_items=1,
    )

    address = pre.deploy_contract(gas_measure_code)
    sender = pre.fund_eoa()

    tx = Transaction(
        ty=tx_type,
        sender=sender,
        to=address,
        data=Hash(0),
        gas_limit=3_000_000,
        gas_price=10 if tx_type < 2 else None,
        access_list=[] if tx_type >= 1 else None,
        max_fee_per_gas=10 if tx_type >= 2 else None,
        max_priority_fee_per_gas=10 if tx_type >= 2 else None,
        max_fee_per_blob_gas=10 if tx_type == 3 else None,
        blob_versioned_hashes=random_blob_hashes[0 : SpecHelpers.target_blobs_per_block()]
        if tx_type == 3
        else None,
    )
    post = {address: Account(storage={0: Spec.HASH_GAS_COST})}

    state_test(
        env=Environment(),
        pre=pre,
        tx=tx,
        post=post,
    )

Parametrized Test Cases

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

Skipped Parameters

For more concise readability, the table below does not list the following parameter values: fork, blockchain_test, state_test, state_test_only, eof_test, eof_state_test.

Test ID tx_type blobhash_index
tx_type_3-blobhash_index_0 3 0
tx_type_3-blobhash_index_1 3 1
tx_type_3-blobhash_index_2 3 2
tx_type_3-blobhash_index_3 3 3
tx_type_3-blobhash_index_4 3 4
tx_type_3-blobhash_index_115792089237316195423570985008687907853269984665640564039457584007913129639935 3 115792089237316195423570985008687907853269984665640564039457584007913129639935
tx_type_3-blobhash_index_72901072107898194510616918724280211781393090952923809435170590639787343028527 3 72901072107898194510616918724280211781393090952923809435170590639787343028527
tx_type_3-blobhash_index_0 3 0
tx_type_3-blobhash_index_1 3 1
tx_type_3-blobhash_index_2 3 2
tx_type_3-blobhash_index_3 3 3
tx_type_3-blobhash_index_4 3 4
tx_type_3-blobhash_index_115792089237316195423570985008687907853269984665640564039457584007913129639935 3 115792089237316195423570985008687907853269984665640564039457584007913129639935
tx_type_3-blobhash_index_72901072107898194510616918724280211781393090952923809435170590639787343028527 3 72901072107898194510616918724280211781393090952923809435170590639787343028527
tx_type_2-blobhash_index_0 2 0
tx_type_2-blobhash_index_1 2 1
tx_type_2-blobhash_index_2 2 2
tx_type_2-blobhash_index_3 2 3
tx_type_2-blobhash_index_4 2 4
tx_type_2-blobhash_index_115792089237316195423570985008687907853269984665640564039457584007913129639935 2 115792089237316195423570985008687907853269984665640564039457584007913129639935
tx_type_2-blobhash_index_72901072107898194510616918724280211781393090952923809435170590639787343028527 2 72901072107898194510616918724280211781393090952923809435170590639787343028527
tx_type_2-blobhash_index_0 2 0
tx_type_2-blobhash_index_1 2 1
tx_type_2-blobhash_index_2 2 2
tx_type_2-blobhash_index_3 2 3
tx_type_2-blobhash_index_4 2 4
tx_type_2-blobhash_index_115792089237316195423570985008687907853269984665640564039457584007913129639935 2 115792089237316195423570985008687907853269984665640564039457584007913129639935
tx_type_2-blobhash_index_72901072107898194510616918724280211781393090952923809435170590639787343028527 2 72901072107898194510616918724280211781393090952923809435170590639787343028527
tx_type_1-blobhash_index_0 1 0
tx_type_1-blobhash_index_1 1 1
tx_type_1-blobhash_index_2 1 2
tx_type_1-blobhash_index_3 1 3
tx_type_1-blobhash_index_4 1 4
tx_type_1-blobhash_index_115792089237316195423570985008687907853269984665640564039457584007913129639935 1 115792089237316195423570985008687907853269984665640564039457584007913129639935
tx_type_1-blobhash_index_72901072107898194510616918724280211781393090952923809435170590639787343028527 1 72901072107898194510616918724280211781393090952923809435170590639787343028527
tx_type_1-blobhash_index_0 1 0
tx_type_1-blobhash_index_1 1 1
tx_type_1-blobhash_index_2 1 2
tx_type_1-blobhash_index_3 1 3
tx_type_1-blobhash_index_4 1 4
tx_type_1-blobhash_index_115792089237316195423570985008687907853269984665640564039457584007913129639935 1 115792089237316195423570985008687907853269984665640564039457584007913129639935
tx_type_1-blobhash_index_72901072107898194510616918724280211781393090952923809435170590639787343028527 1 72901072107898194510616918724280211781393090952923809435170590639787343028527
tx_type_0-blobhash_index_0 0 0
tx_type_0-blobhash_index_1 0 1
tx_type_0-blobhash_index_2 0 2
tx_type_0-blobhash_index_3 0 3
tx_type_0-blobhash_index_4 0 4
tx_type_0-blobhash_index_115792089237316195423570985008687907853269984665640564039457584007913129639935 0 115792089237316195423570985008687907853269984665640564039457584007913129639935
tx_type_0-blobhash_index_72901072107898194510616918724280211781393090952923809435170590639787343028527 0 72901072107898194510616918724280211781393090952923809435170590639787343028527
tx_type_0-blobhash_index_0 0 0
tx_type_0-blobhash_index_1 0 1
tx_type_0-blobhash_index_2 0 2
tx_type_0-blobhash_index_3 0 3
tx_type_0-blobhash_index_4 0 4
tx_type_0-blobhash_index_115792089237316195423570985008687907853269984665640564039457584007913129639935 0 115792089237316195423570985008687907853269984665640564039457584007913129639935
tx_type_0-blobhash_index_72901072107898194510616918724280211781393090952923809435170590639787343028527 0 72901072107898194510616918724280211781393090952923809435170590639787343028527