Files
nutshell/tests/test_wallet_htlc.py
callebtc 48f732e9e7 Refactor secret conditions (#350)
* refactor spending conditions and add comments

* fix kind enum deserialization
2023-10-21 16:51:12 +02:00

241 lines
8.9 KiB
Python

import asyncio
import hashlib
import secrets
from typing import List
import pytest
import pytest_asyncio
from cashu.core.base import HTLCWitness, Proof
from cashu.core.crypto.secp import PrivateKey
from cashu.core.htlc import HTLCSecret
from cashu.core.migrations import migrate_databases
from cashu.wallet import migrations
from cashu.wallet.wallet import Wallet
from cashu.wallet.wallet import Wallet as Wallet1
from cashu.wallet.wallet import Wallet as Wallet2
from tests.conftest import SERVER_ENDPOINT
async def assert_err(f, msg):
"""Compute f() and expect an error message 'msg'."""
try:
await f
except Exception as exc:
if msg not in str(exc.args[0]):
raise Exception(f"Expected error: {msg}, got: {exc.args[0]}")
return
raise Exception(f"Expected error: {msg}, got no error")
def assert_amt(proofs: List[Proof], expected: int):
"""Assert amounts the proofs contain."""
assert [p.amount for p in proofs] == expected
@pytest_asyncio.fixture(scope="function")
async def wallet1(mint):
wallet1 = await Wallet1.with_db(
SERVER_ENDPOINT, "test_data/wallet_p2pk_1", "wallet1"
)
await migrate_databases(wallet1.db, migrations)
await wallet1.load_mint()
wallet1.status()
yield wallet1
@pytest_asyncio.fixture(scope="function")
async def wallet2(mint):
wallet2 = await Wallet2.with_db(
SERVER_ENDPOINT, "test_data/wallet_p2pk_2", "wallet2"
)
await migrate_databases(wallet2.db, migrations)
wallet2.private_key = PrivateKey(secrets.token_bytes(32), raw=True)
await wallet2.load_mint()
wallet2.status()
yield wallet2
@pytest.mark.asyncio
async def test_create_htlc_secret(wallet1: Wallet):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(preimage=preimage)
assert secret.data == preimage_hash
@pytest.mark.asyncio
async def test_htlc_split(wallet1: Wallet, wallet2: Wallet):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(preimage=preimage)
_, send_proofs = await wallet1.split_to_send(wallet1.proofs, 8, secret_lock=secret)
for p in send_proofs:
assert HTLCSecret.deserialize(p.secret).data == preimage_hash
@pytest.mark.asyncio
async def test_htlc_redeem_with_preimage(wallet1: Wallet, wallet2: Wallet):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
# preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(preimage=preimage)
_, send_proofs = await wallet1.split_to_send(wallet1.proofs, 8, secret_lock=secret)
for p in send_proofs:
p.witness = HTLCWitness(preimage=preimage).json()
await wallet2.redeem(send_proofs)
@pytest.mark.asyncio
async def test_htlc_redeem_with_wrong_preimage(wallet1: Wallet, wallet2: Wallet):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
# preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(
preimage=preimage[:-5] + "11111"
) # wrong preimage
_, send_proofs = await wallet1.split_to_send(wallet1.proofs, 8, secret_lock=secret)
for p in send_proofs:
p.witness = HTLCWitness(preimage=preimage).json()
await assert_err(
wallet2.redeem(send_proofs), "Mint Error: HTLC preimage does not match"
)
@pytest.mark.asyncio
async def test_htlc_redeem_with_no_signature(wallet1: Wallet, wallet2: Wallet):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
pubkey_wallet1 = await wallet1.create_p2pk_pubkey()
# preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(
preimage=preimage, hashlock_pubkey=pubkey_wallet1
)
_, send_proofs = await wallet1.split_to_send(wallet1.proofs, 8, secret_lock=secret)
for p in send_proofs:
p.witness = HTLCWitness(preimage=preimage).json()
await assert_err(
wallet2.redeem(send_proofs),
"Mint Error: HTLC no hash lock signatures provided.",
)
@pytest.mark.asyncio
async def test_htlc_redeem_with_wrong_signature(wallet1: Wallet, wallet2: Wallet):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
pubkey_wallet1 = await wallet1.create_p2pk_pubkey()
# preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(
preimage=preimage, hashlock_pubkey=pubkey_wallet1
)
_, send_proofs = await wallet1.split_to_send(wallet1.proofs, 8, secret_lock=secret)
signatures = await wallet1.sign_p2pk_proofs(send_proofs)
for p, s in zip(send_proofs, signatures):
p.witness = HTLCWitness(
preimage=preimage, signature=s[:-5] + "11111"
).json() # wrong signature
await assert_err(
wallet2.redeem(send_proofs),
"Mint Error: HTLC hash lock signatures did not match.",
)
@pytest.mark.asyncio
async def test_htlc_redeem_with_correct_signature(wallet1: Wallet, wallet2: Wallet):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
pubkey_wallet1 = await wallet1.create_p2pk_pubkey()
# preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(
preimage=preimage, hashlock_pubkey=pubkey_wallet1
)
_, send_proofs = await wallet1.split_to_send(wallet1.proofs, 8, secret_lock=secret)
signatures = await wallet1.sign_p2pk_proofs(send_proofs)
for p, s in zip(send_proofs, signatures):
p.witness = HTLCWitness(preimage=preimage, signature=s).json()
await wallet2.redeem(send_proofs)
@pytest.mark.asyncio
async def test_htlc_redeem_hashlock_wrong_signature_timelock_correct_signature(
wallet1: Wallet, wallet2: Wallet
):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
pubkey_wallet1 = await wallet1.create_p2pk_pubkey()
pubkey_wallet2 = await wallet2.create_p2pk_pubkey()
# preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(
preimage=preimage,
hashlock_pubkey=pubkey_wallet2,
locktime_seconds=5,
locktime_pubkey=pubkey_wallet1,
)
_, send_proofs = await wallet1.split_to_send(wallet1.proofs, 8, secret_lock=secret)
signatures = await wallet1.sign_p2pk_proofs(send_proofs)
for p, s in zip(send_proofs, signatures):
p.witness = HTLCWitness(preimage=preimage, signature=s).json()
# should error because we used wallet2 signatures for the hash lock
await assert_err(
wallet1.redeem(send_proofs),
"Mint Error: HTLC hash lock signatures did not match.",
)
await asyncio.sleep(5)
# should succeed since lock time has passed and we provided wallet1 signature for timelock
await wallet1.redeem(send_proofs)
@pytest.mark.asyncio
async def test_htlc_redeem_hashlock_wrong_signature_timelock_wrong_signature(
wallet1: Wallet, wallet2: Wallet
):
invoice = await wallet1.request_mint(64)
await wallet1.mint(64, id=invoice.id)
preimage = "00000000000000000000000000000000"
pubkey_wallet1 = await wallet1.create_p2pk_pubkey()
pubkey_wallet2 = await wallet2.create_p2pk_pubkey()
# preimage_hash = hashlib.sha256(bytes.fromhex(preimage)).hexdigest()
secret = await wallet1.create_htlc_lock(
preimage=preimage,
hashlock_pubkey=pubkey_wallet2,
locktime_seconds=5,
locktime_pubkey=pubkey_wallet1,
)
_, send_proofs = await wallet1.split_to_send(wallet1.proofs, 8, secret_lock=secret)
signatures = await wallet1.sign_p2pk_proofs(send_proofs)
for p, s in zip(send_proofs, signatures):
p.witness = HTLCWitness(
preimage=preimage, signature=s[:-5] + "11111"
).json() # wrong signature
# should error because we used wallet2 signatures for the hash lock
await assert_err(
wallet1.redeem(send_proofs),
"Mint Error: HTLC hash lock signatures did not match.",
)
await asyncio.sleep(5)
# should fail since lock time has passed and we provided a wrong signature for timelock
await assert_err(
wallet1.redeem(send_proofs),
"Mint Error: HTLC refund signatures did not match.",
)