f more test comments

Author: TheBlueMatt

lightning/src/ln/functional_tests.rs

@@ -7933,6 +7933,8 @@ fn test_priv_forwarding_rejection() {
 
 	create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known());
 
+	// Note that the create_*_chan functions in utils requires announcement_signatures, which we do
+	// not send for private channels.
 	nodes[1].node.create_channel(nodes[2].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None).unwrap();
 	let open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[2].node.get_our_node_id());
 	nodes[2].node.handle_open_channel(&nodes[1].node.get_our_node_id(), InitFeatures::known(), &open_channel);
@@ -7994,6 +7996,9 @@ fn test_priv_forwarding_rejection() {
 	expect_payment_failed!(nodes[0], our_payment_hash, false);
 	expect_payment_failure_chan_update!(nodes[0], nodes[2].node.list_channels()[0].short_channel_id.unwrap(), true);
 
+	// Now disconnect nodes[1] from its peers and restart with accept_forwards_to_priv_channels set
+	// to true. Sadly there is currently no way to change it at runtime.
+
 	nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
 	nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);