def htlc_lifecycle(htlc_success: bool):
A = HTLCManager()
B = HTLCManager()
A.channel_open_finished()
B.channel_open_finished()
B.recv_htlc(A.send_htlc(H('A', 0)))
self.assertEqual(len(B.get_htlcs_in_next_ctx(REMOTE)), 0)
self.assertEqual(len(A.get_htlcs_in_next_ctx(REMOTE)), 1)
self.assertEqual(len(B.get_htlcs_in_next_ctx(LOCAL)), 1)
self.assertEqual(len(A.get_htlcs_in_next_ctx(LOCAL)), 0)
A.send_ctx()
B.recv_ctx()
B.send_rev()
A.recv_rev()
B.send_ctx()
A.recv_ctx()
A.send_rev()
B.recv_rev()
self.assertEqual(len(A.get_htlcs_in_latest_ctx(LOCAL)), 1)
self.assertEqual(len(B.get_htlcs_in_latest_ctx(LOCAL)), 1)
if htlc_success:
B.send_settle(0)
A.recv_settle(0)
else:
B.send_fail(0)
A.recv_fail(0)
self.assertEqual(
list(A.htlcs_by_direction(REMOTE, RECEIVED).values()),
[H('A', 0)])
self.assertNotEqual(A.get_htlcs_in_latest_ctx(LOCAL), [])
self.assertNotEqual(B.get_htlcs_in_latest_ctx(REMOTE), [])
self.assertEqual(A.get_htlcs_in_next_ctx(LOCAL), [])
self.assertNotEqual(A.get_htlcs_in_next_ctx(REMOTE), [])
self.assertEqual(A.get_htlcs_in_next_ctx(REMOTE),
A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual(B.get_htlcs_in_next_ctx(REMOTE), [])
B.send_ctx()
A.recv_ctx()
A.send_rev() # here pending_htlcs(REMOTE) should become empty
self.assertEqual(A.get_htlcs_in_next_ctx(REMOTE), [])
B.recv_rev()
A.send_ctx()
B.recv_ctx()
B.send_rev()
A.recv_rev()
self.assertEqual(B.get_htlcs_in_latest_ctx(LOCAL), [])
self.assertEqual(A.get_htlcs_in_latest_ctx(LOCAL), [])
self.assertEqual(A.get_htlcs_in_latest_ctx(REMOTE), [])
self.assertEqual(B.get_htlcs_in_latest_ctx(REMOTE), [])
self.assertEqual(len(A.all_settled_htlcs_ever(LOCAL)),
int(htlc_success))
self.assertEqual(len(A.sent_in_ctn(2)), int(htlc_success))
self.assertEqual(len(B.received_in_ctn(2)), int(htlc_success))
A.recv_htlc(B.send_htlc(H('B', 0)))
self.assertEqual(A.get_htlcs_in_next_ctx(REMOTE), [])
self.assertNotEqual(A.get_htlcs_in_next_ctx(LOCAL), [])
self.assertNotEqual(B.get_htlcs_in_next_ctx(REMOTE), [])
self.assertEqual(B.get_htlcs_in_next_ctx(LOCAL), [])
B.send_ctx()
A.recv_ctx()
A.send_rev()
B.recv_rev()
self.assertNotEqual(A.get_htlcs_in_next_ctx(REMOTE),
A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual(A.get_htlcs_in_next_ctx(LOCAL),
A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual(B.get_htlcs_in_next_ctx(REMOTE),
B.get_htlcs_in_latest_ctx(REMOTE))
self.assertNotEqual(B.get_htlcs_in_next_ctx(LOCAL),
B.get_htlcs_in_next_ctx(REMOTE))
def test_unacked_local_updates(self):
A = HTLCManager()
B = HTLCManager()
A.channel_open_finished()
B.channel_open_finished()
self.assertEqual({}, A.get_unacked_local_updates())
ah0 = H('A', 0)
B.recv_htlc(A.send_htlc(ah0))
A.store_local_update_raw_msg(b"upd_msg0", is_commitment_signed=False)
self.assertEqual({1: [b"upd_msg0"]}, A.get_unacked_local_updates())
ah1 = H('A', 1)
B.recv_htlc(A.send_htlc(ah1))
A.store_local_update_raw_msg(b"upd_msg1", is_commitment_signed=False)
self.assertEqual({1: [b"upd_msg0", b"upd_msg1"]},
A.get_unacked_local_updates())
A.send_ctx()
B.recv_ctx()
A.store_local_update_raw_msg(b"ctx1", is_commitment_signed=True)
self.assertEqual({1: [b"upd_msg0", b"upd_msg1", b"ctx1"]},
A.get_unacked_local_updates())
ah2 = H('A', 2)
B.recv_htlc(A.send_htlc(ah2))
A.store_local_update_raw_msg(b"upd_msg2", is_commitment_signed=False)
self.assertEqual(
{
1: [b"upd_msg0", b"upd_msg1", b"ctx1"],
2: [b"upd_msg2"]
}, A.get_unacked_local_updates())
B.send_rev()
A.recv_rev()
self.assertEqual({2: [b"upd_msg2"]}, A.get_unacked_local_updates())
def test_adding_htlcs_race(self):
A = HTLCManager()
B = HTLCManager()
A.channel_open_finished()
B.channel_open_finished()
ah0, bh0 = H('A', 0), H('B', 0)
B.recv_htlc(A.send_htlc(ah0))
self.assertEqual(B.log[REMOTE]['locked_in'][0][LOCAL], 1)
A.recv_htlc(B.send_htlc(bh0))
self.assertEqual(B.get_htlcs_in_latest_ctx(LOCAL), [])
self.assertEqual(A.get_htlcs_in_latest_ctx(LOCAL), [])
self.assertEqual(B.get_htlcs_in_next_ctx(LOCAL), [(RECEIVED, ah0)])
self.assertEqual(A.get_htlcs_in_next_ctx(LOCAL), [(RECEIVED, bh0)])
A.send_ctx()
B.recv_ctx()
B.send_ctx()
A.recv_ctx()
self.assertEqual(B.get_htlcs_in_oldest_unrevoked_ctx(LOCAL), [])
self.assertEqual(A.get_htlcs_in_oldest_unrevoked_ctx(LOCAL), [])
self.assertEqual(B.get_htlcs_in_latest_ctx(LOCAL), [(RECEIVED, ah0)])
self.assertEqual(A.get_htlcs_in_latest_ctx(LOCAL), [(RECEIVED, bh0)])
B.send_rev()
A.recv_rev()
A.send_rev()
B.recv_rev()
self.assertEqual(B.get_htlcs_in_oldest_unrevoked_ctx(LOCAL),
[(RECEIVED, ah0)])
self.assertEqual(A.get_htlcs_in_oldest_unrevoked_ctx(LOCAL),
[(RECEIVED, bh0)])
self.assertEqual(B.get_htlcs_in_latest_ctx(LOCAL), [(RECEIVED, ah0)])
self.assertEqual(A.get_htlcs_in_latest_ctx(LOCAL), [(RECEIVED, bh0)])
A.send_ctx()
B.recv_ctx()
B.send_ctx()
A.recv_ctx()
self.assertEqual(B.get_htlcs_in_oldest_unrevoked_ctx(LOCAL),
[(RECEIVED, ah0)])
self.assertEqual(A.get_htlcs_in_oldest_unrevoked_ctx(LOCAL),
[(RECEIVED, bh0)])
self.assertEqual(B.get_htlcs_in_latest_ctx(LOCAL), [(RECEIVED, ah0),
(SENT, bh0)][::-1])
self.assertEqual(A.get_htlcs_in_latest_ctx(LOCAL), [(RECEIVED, bh0),
(SENT, ah0)][::-1])
B.send_rev()
A.recv_rev()
A.send_rev()
B.recv_rev()
self.assertEqual(B.get_htlcs_in_oldest_unrevoked_ctx(LOCAL),
[(RECEIVED, ah0), (SENT, bh0)][::-1])
self.assertEqual(A.get_htlcs_in_oldest_unrevoked_ctx(LOCAL),
[(RECEIVED, bh0), (SENT, ah0)][::-1])
self.assertEqual(B.get_htlcs_in_latest_ctx(LOCAL), [(RECEIVED, ah0),
(SENT, bh0)][::-1])
self.assertEqual(A.get_htlcs_in_latest_ctx(LOCAL), [(RECEIVED, bh0),
(SENT, ah0)][::-1])
def test_adding_htlc_between_send_ctx_and_recv_rev(self):
A = HTLCManager()
B = HTLCManager()
A.channel_open_finished()
B.channel_open_finished()
A.send_ctx()
B.recv_ctx()
B.send_rev()
ah0 = H('A', 0)
B.recv_htlc(A.send_htlc(ah0))
self.assertEqual([], A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual([], A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual([], A.get_htlcs_in_next_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_next_ctx(REMOTE))
A.recv_rev()
self.assertEqual([], A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual([], A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual([], A.get_htlcs_in_next_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_next_ctx(REMOTE))
A.send_ctx()
B.recv_ctx()
self.assertEqual([], A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual([], A.get_htlcs_in_next_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_next_ctx(REMOTE))
B.send_rev()
A.recv_rev()
self.assertEqual([], A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual([(Direction.SENT, ah0)],
A.get_htlcs_in_next_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_next_ctx(REMOTE))
B.send_ctx()
A.recv_ctx()
self.assertEqual([], A.get_htlcs_in_oldest_unrevoked_ctx(LOCAL))
self.assertEqual([(Direction.SENT, ah0)],
A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual([(Direction.SENT, ah0)],
A.get_htlcs_in_next_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_next_ctx(REMOTE))
A.send_rev()
B.recv_rev()
self.assertEqual([(Direction.SENT, ah0)],
A.get_htlcs_in_oldest_unrevoked_ctx(LOCAL))
self.assertEqual([(Direction.SENT, ah0)],
A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual([(Direction.SENT, ah0)],
A.get_htlcs_in_next_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_next_ctx(REMOTE))
def htlc_lifecycle(htlc_success: bool):
A = HTLCManager()
B = HTLCManager()
A.channel_open_finished()
B.channel_open_finished()
ah0 = H('A', 0)
B.recv_htlc(A.send_htlc(ah0))
A.send_ctx()
B.recv_ctx()
B.send_rev()
A.recv_rev()
if htlc_success:
B.send_settle(0)
A.recv_settle(0)
else:
B.send_fail(0)
A.recv_fail(0)
self.assertEqual([], A.get_htlcs_in_oldest_unrevoked_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_oldest_unrevoked_ctx(REMOTE))
self.assertEqual([], A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual([], A.get_htlcs_in_next_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_next_ctx(REMOTE))
B.send_ctx()
A.recv_ctx()
A.send_rev()
B.recv_rev()
self.assertEqual([], A.get_htlcs_in_oldest_unrevoked_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_oldest_unrevoked_ctx(REMOTE))
self.assertEqual([], A.get_htlcs_in_latest_ctx(LOCAL))
self.assertEqual([(Direction.RECEIVED, ah0)],
A.get_htlcs_in_latest_ctx(REMOTE))
self.assertEqual([], A.get_htlcs_in_next_ctx(LOCAL))
self.assertEqual([], A.get_htlcs_in_next_ctx(REMOTE))