Fix the following issue:
Test accounts can't sign EIP712 messages
I'm writing tests for a contract that uses EIP712 signatures (it's an ERC-2612 permit-style flow, so I need to construct a typed Permit message and have an account sign it). For the live network the signing works through my real account, but in the ape test suite I want to use one of the built-in test accounts so the test is hermetic.
Roughly what I'm doing:
from eip712.messages import EIP712Message
class Permit(EIP712Message):
_name_ = "MyToken"
_version_ = "1"
_chainId_ = 1
_verifyingContract_ = token.address
owner: "address"
spender: "address"
value: "uint256"
nonce: "uint256"
deadline: "uint256"
def test_permit(accounts, token):
owner = accounts[0] # an ape_test TestAccount
spender = accounts[1]
msg = Permit(
owner=owner.address,
spender=spender.address,
value=1000,
nonce=0,
deadline=2**32,
)
sig = owner.sign_message(msg)
assert sig is not None # <- fails
token.permit(owner, spender, 1000, 2**32, sig.v, sig.r, sig.s, sender=spender)
owner.sign_message(msg) just gives me back None, so the assertion blows up and I can never get to the permit call. Plain string messages signed against the same test account work fine, it's specifically the EIP712 typed message that comes back empty.
It'd be great if the ape_test accounts could sign EIP712 messages the same way they handle the other message types, so tests that exercise permit / EIP712-based auth flows can actually run end-to-end without a real key.