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ln feature bits: flatten namespaces, and impl feature deps and ctxs

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This implements:
- flat feature bits https://github.com/lightningnetwork/lightning-rfc/pull/666
- feature bit dependencies https://github.com/lightningnetwork/lightning-rfc/pull/719
This commit is contained in:
SomberNight
2020-03-16 22:07:00 +01:00
parent c69937395e
commit 6ba08cc8d4
7 changed files with 224 additions and 50 deletions
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52
electrum/tests/test_lnutil.py
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@@ -8,7 +8,7 @@ from electrum.lnutil import (RevocationStore, get_per_commitment_secret_from_see
make_htlc_tx_inputs, secret_to_pubkey, derive_blinded_pubkey, derive_privkey,
derive_pubkey, make_htlc_tx, extract_ctn_from_tx, UnableToDeriveSecret,
get_compressed_pubkey_from_bech32, split_host_port, ConnStringFormatError,
ScriptHtlc, extract_nodeid, calc_fees_for_commitment_tx, UpdateAddHtlc)
ScriptHtlc, extract_nodeid, calc_fees_for_commitment_tx, UpdateAddHtlc, LnFeatures)
from electrum.util import bh2u, bfh, MyEncoder
from electrum.transaction import Transaction, PartialTransaction
@@ -755,3 +755,53 @@ class TestLNUtil(ElectrumTestCase):
with self.assertRaises(ConnStringFormatError):
extract_nodeid("00" * 33 + "@")
self.assertEqual(extract_nodeid("00" * 33 + "@localhost"), (b"\x00" * 33, "localhost"))
def test_ln_features_validate_transitive_dependecies(self):
features = LnFeatures.OPTION_DATA_LOSS_PROTECT_REQ
self.assertTrue(features.validate_transitive_dependecies())
features = LnFeatures.PAYMENT_SECRET_OPT
self.assertFalse(features.validate_transitive_dependecies())
features = LnFeatures.PAYMENT_SECRET_REQ
self.assertFalse(features.validate_transitive_dependecies())
features = LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_REQ
self.assertTrue(features.validate_transitive_dependecies())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ
self.assertFalse(features.validate_transitive_dependecies())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_OPT
self.assertTrue(features.validate_transitive_dependecies())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_REQ
self.assertTrue(features.validate_transitive_dependecies())
def test_ln_features_for_init_message(self):
features = LnFeatures.OPTION_DATA_LOSS_PROTECT_REQ
self.assertEqual(features, features.for_init_message())
features = LnFeatures.PAYMENT_SECRET_OPT
self.assertEqual(features, features.for_init_message())
features = LnFeatures.PAYMENT_SECRET_REQ
self.assertEqual(features, features.for_init_message())
features = LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_REQ
self.assertEqual(features, features.for_init_message())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ
self.assertEqual(features, features.for_init_message())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_OPT
self.assertEqual(features, features.for_init_message())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_REQ
self.assertEqual(features, features.for_init_message())
def test_ln_features_for_invoice(self):
features = LnFeatures.OPTION_DATA_LOSS_PROTECT_REQ
self.assertEqual(LnFeatures(0), features.for_invoice())
features = LnFeatures.PAYMENT_SECRET_OPT
self.assertEqual(features, features.for_invoice())
features = LnFeatures.PAYMENT_SECRET_REQ
self.assertEqual(features, features.for_invoice())
features = LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_REQ
self.assertEqual(features, features.for_invoice())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.OPTION_DATA_LOSS_PROTECT_REQ
self.assertEqual(LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ,
features.for_invoice())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_OPT | LnFeatures.OPTION_DATA_LOSS_PROTECT_REQ
self.assertEqual(LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_OPT,
features.for_invoice())
features = LnFeatures.BASIC_MPP_OPT | LnFeatures.PAYMENT_SECRET_REQ | LnFeatures.VAR_ONION_REQ
self.assertEqual(features, features.for_invoice())