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test_reset_code()

Documentation for tests/prague/eip7702_set_code_tx/test_set_code_txs.py::test_reset_code@v5.1.0.

Generate fixtures for these test cases for Osaka with:

fill -v tests/prague/eip7702_set_code_tx/test_set_code_txs.py::test_reset_code --fork Osaka

Test sending type-4 tx to reset the code of an account after code has been set to the account.

Source code in tests/prague/eip7702_set_code_tx/test_set_code_txs.py 
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@pytest.mark.parametrize(
    "self_sponsored",
    [
        pytest.param(False, id="not_self_sponsored"),
        pytest.param(True, id="self_sponsored"),
    ],
)
def test_reset_code(
    blockchain_test: BlockchainTestFiller,
    pre: Alloc,
    self_sponsored: bool,
):
    """
    Test sending type-4 tx to reset the code of an account after code has been
    set to the account.
    """
    auth_signer = pre.fund_eoa()

    set_code_1 = Op.SSTORE(1, Op.ADD(Op.SLOAD(1), 1)) + Op.STOP
    set_code_1_address = pre.deploy_contract(set_code_1)

    set_code_2 = Op.SSTORE(2, Op.ADD(Op.SLOAD(2), 1)) + Op.STOP
    set_code_2_address = pre.deploy_contract(set_code_2)

    sender = pre.fund_eoa()

    txs = [
        Transaction(
            sender=sender,
            gas_limit=500_000,
            to=auth_signer,
            value=0,
            authorization_list=[
                AuthorizationTuple(
                    address=set_code_1_address,
                    nonce=0,
                    signer=auth_signer,
                ),
            ],
        )
    ]

    auth_signer.nonce += 1  # type: ignore

    if self_sponsored:
        sender = auth_signer

    txs.append(
        Transaction(
            sender=sender,
            gas_limit=500_000,
            to=auth_signer,
            value=0,
            authorization_list=[
                AuthorizationTuple(
                    address=set_code_2_address,
                    nonce=auth_signer.nonce + 1 if self_sponsored else auth_signer.nonce,
                    signer=auth_signer,
                ),
            ],
        ),
    )

    blockchain_test(
        pre=pre,
        blocks=[Block(txs=txs)],
        post={
            auth_signer: Account(
                nonce=3 if self_sponsored else 2,
                code=Spec.delegation_designation(set_code_2_address),
                storage={1: 1, 2: 1},
            ),
        },
    )

Parametrized Test Cases

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

Test ID (Abbreviated) self_sponsored
...fork_Prague-blockchain_test-not_self_sponsored False
...fork_Prague-blockchain_test-self_sponsored True
...fork_Osaka-blockchain_test-not_self_sponsored False
...fork_Osaka-blockchain_test-self_sponsored True