send_payment(&nodes[0], &[&nodes[1]], 8000000);
close_channel(&nodes[0], &nodes[1], &channel_id, funding_tx, true);
check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure);
send_payment(&nodes[0], &[&nodes[1]], 8000000);
close_channel(&nodes[0], &nodes[1], &channel_id, funding_tx, true);
check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure);