test_multi_block_dimension_flip()

Documentation for tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_block_2d_gas_accounting.py::test_multi_block_dimension_flip@622620d8.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_block_2d_gas_accounting.py::test_multi_block_dimension_flip --fork Amsterdam

Verify gas_used across blocks where dominant dimension flips.

Block 1: STOP txs only (execution dominates). Block 2: SSTORE txs only (state dominates). Each block independently computes its own 2D max.

Source code in tests/amsterdam/eip8037_state_creation_gas_cost_increase/test_block_2d_gas_accounting.py

@pytest.mark.valid_from("EIP8037")
def test_multi_block_dimension_flip(
    blockchain_test: BlockchainTestFiller,
    pre: Alloc,
    fork: Fork,
) -> None:
    """
    Verify gas_used across blocks where dominant dimension flips.

    Block 1: STOP txs only (execution dominates).
    Block 2: SSTORE txs only (state dominates).
    Each block independently computes its own 2D max.
    """
    n = 3
    intrinsic_gas = fork.transaction_intrinsic_cost_calculator()()
    tx_execution, tx_state = sstore_tx_gas(fork)

    # Block 1 has no state gas at all, execution leads by default;
    block_1_execution = n * intrinsic_gas
    block_2_execution, block_2_state = n * tx_execution, n * tx_state
    assert block_2_state > block_2_execution, "block 2 must lead on state"

    block_1 = stop_txs(pre, fork, n)
    block_2, post_2 = sstore_txs(pre, fork, n)

    blockchain_test(
        pre=pre,
        blocks=[
            Block(
                txs=block_1,
                header_verify=Header(gas_used=block_1_execution),
            ),
            Block(
                txs=block_2,
                header_verify=Header(gas_used=block_2_state),
            ),
        ],
        post=post_2,
    )

Parametrized Test Cases

This test generates 1 parametrized test case across 1 fork.