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55 changes: 55 additions & 0 deletions tests/constantinople/eip1052_extcodehash/test_extcodehash.py
Original file line number Diff line number Diff line change
Expand Up @@ -347,3 +347,58 @@ def test_extcodehash_empty_contract_creation(
},
tx=tx,
)


@pytest.mark.ported_from(
[
"https://github.com/ethereum/tests/blob/v13.3/src/GeneralStateTestsFiller/stExtCodeHash/dynamicAccountOverwriteEmpty_ParisFiller.yml", # noqa: E501
],
pr=[],
)
@pytest.mark.pre_alloc_mutable
@pytest.mark.parametrize(
"balance, nonce",
[
pytest.param(1, 0, id="balance"),
pytest.param(0, 1, id="nonce"),
pytest.param(1, 1, id="balance_and_nonce"),
],
)
def test_extcodehash_codeless_with_storage(
state_test: StateTestFiller,
pre: Alloc,
balance: int,
nonce: int,
) -> None:
"""
Test EXTCODEHASH/EXTCODESIZE of a codeless account that has storage.

All three variants are non-empty per EIP-161 (non-zero balance or nonce),
so EXTCODEHASH returns keccak256("") and EXTCODESIZE returns 0.
Storage is not part of the EIP-161 emptiness check.
"""
target_address = pre.empty_account()
pre[target_address] = Account(balance=balance, nonce=nonce, storage={1: 1})

storage = Storage()
code = Op.SSTORE(
storage.store_next(keccak256(b"")),
Op.EXTCODEHASH(target_address),
) + Op.SSTORE(
storage.store_next(0),
Op.EXTCODESIZE(target_address),
)

code_address = pre.deploy_contract(code)

tx = Transaction(
sender=pre.fund_eoa(),
to=code_address,
gas_limit=100_000,
)

state_test(
pre=pre,
post={code_address: Account(storage=storage)},
tx=tx,
)