#[test]
fn test_phantom_failure_expires_too_soon() {
	// Test that we fail back phantoms if the upstream node fiddled with the CLTV too much with the
	// correct error code.
	let chanmon_cfgs = create_chanmon_cfgs(2);
	let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
	let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
	let nodes = create_network(2, &node_cfgs, &node_chanmgrs);

	let channel = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());

	// Get the route.
	let recv_value_msat = 10_000;
	let (_, payment_hash, payment_secret) = get_payment_preimage_hash!(nodes[1], Some(recv_value_msat));
	let (mut route, phantom_scid) = get_phantom_route!(nodes, recv_value_msat, channel);

	// Route the HTLC through to the destination.
	nodes[0].node.send_payment(&route, payment_hash, &Some(payment_secret), PaymentId(payment_hash.0)).unwrap();
	check_added_monitors!(nodes[0], 1);
	let update_0 = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
	let mut update_add = update_0.update_add_htlcs[0].clone();

	// Modify the route to have a too-low cltv.
	// update_add.cltv_expiry += CLTV_FAR_FAR_AWAY;

	connect_blocks(&nodes[1], 72);
	nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &update_add);
	commitment_signed_dance!(nodes[1], nodes[0], &update_0.commitment_signed, false, true);

	let update_1 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
	assert!(update_1.update_fail_htlcs.len() == 1);
	let fail_msg = update_1.update_fail_htlcs[0].clone();
	nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &fail_msg);
	commitment_signed_dance!(nodes[0], nodes[1], update_1.commitment_signed, false);

	// Ensure the payment fails with the expected error.
	let mut fail_conditions = PaymentFailedConditions::new()
		.blamed_scid(phantom_scid)
		.expected_htlc_error_data(0x1000 | 14, &[]);
		expect_payment_failed_conditions(&nodes[0], payment_hash, false, fail_conditions);
}