Function test_plugin_feature_announce

tests/test_plugin.py:1568–1604

Check that features registered by plugins show up in messages. l1 is the node under test, l2 only serves as the counterparty for a channel to check the featurebits in the `channel_announcement`. The plugin registers an individual featurebit for each of the locations we can stash fea

(node_factory)

@pytest.mark.openchannel('v1')
@pytest.mark.openchannel('v2')
def test_plugin_feature_announce(node_factory):
    """Check that features registered by plugins show up in messages.

    l1 is the node under test, l2 only serves as the counterparty for a
    channel to check the featurebits in the `channel_announcement`. The plugin
    registers an individual featurebit for each of the locations we can stash
    feature bits in:

     - 1 << 201 for `init` messages
     - 1 << 203 for `node_announcement`
     - 1 << 205 for bolt11 invoices

    """
    plugin = os.path.join(os.path.dirname(__file__), 'plugins/feature-test.py')
    l1, l2 = node_factory.line_graph(
        2, opts=[{'plugin': plugin, 'log-level': 'io'}, {}],
        wait_for_announce=True
    )

    extra = []
    if l1.config('experimental-dual-fund'):
        extra.append(21)  # option-anchor-outputs
        extra.append(29)  # option-dual-fund

    # Check the featurebits we've set in the `init` message from
    # feature-test.py.
    assert l1.daemon.is_in_log(r'\[OUT\] 001000022100....{}'
                               .format(expected_peer_features(extra=[201] + extra)))

    # Check the invoice featurebit we set in feature-test.py
    inv = l1.rpc.invoice(123, 'lbl', 'desc')['bolt11']
    details = Invoice.decode(inv)
    assert(details.featurebits.int & (1 << 205) != 0)

    # Check the featurebit set in the `node_announcement`
    node = l1.rpc.listnodes(l1.info['id'])['nodes'][0]
    assert node['features'] == expected_node_features(extra=[203] + extra)


def test_hook_chaining(node_factory):