Function test_sourcefree_on_mods

tests/test_askrene.py:1219–1261

auto.sourcefree should also apply to layer-created channels

(node_factory, bitcoind)

def test_sourcefree_on_mods(node_factory, bitcoind):
    """auto.sourcefree should also apply to layer-created channels"""
    gsfile, nodemap = generate_gossip_store([GenChannel(0, 1, forward=GenChannel.Half(propfee=10000)),
                                             GenChannel(0, 2, forward=GenChannel.Half(propfee=10000))])

    l1 = node_factory.get_node(gossip_store_file=gsfile.name)

    # Add a local channel from 0->l1 (we just needed a nodeid).
    l1.rpc.askrene_create_layer('test_layers')
    l1.rpc.askrene_create_channel('test_layers',
                                  nodemap[0],
                                  l1.info['id'],
                                  '0x3x3',
                                  '1000000sat')
    l1.rpc.askrene_update_channel(layer='test_layers',
                                  short_channel_id_dir=f'0x3x3/{direction(nodemap[0], l1.info["id"])}',
                                  enabled=True,
                                  htlc_minimum_msat=100,
                                  htlc_maximum_msat='900000sat',
                                  fee_base_msat=1000,
                                  fee_proportional_millionths=2000,
                                  cltv_expiry_delta=18)
    dir03 = direction(nodemap[0], l1.info['id'])
    routes = l1.rpc.getroutes(source=nodemap[0],
                              destination=l1.info['id'],
                              amount_msat=1000000,
                              layers=['test_layers', 'auto.sourcefree'],
                              maxfee_msat=100000,
                              final_cltv=99)['routes']
    # Expect no fee.
    check_route_as_expected(routes, [[{'short_channel_id_dir': f'0x3x3/{dir03}',
                                       'amount_in_msat': 1000000, 'cltv_in': 99}]])

    # NOT if we specify layers in the other order!
    routes = l1.rpc.getroutes(source=nodemap[0],
                              destination=l1.info['id'],
                              amount_msat=1000000,
                              layers=['auto.sourcefree', 'test_layers'],
                              maxfee_msat=100000,
                              final_cltv=99)['routes']
    # Expect no fee.
    check_route_as_expected(routes, [[{'short_channel_id_dir': f'0x3x3/{dir03}',
                                       'amount_in_msat': 1003000, 'cltv_in': 117}]])


def test_live_spendable(node_factory, bitcoind):