Add back InvalidNodeTransactionSignature fault.

This was accidentally removed due to a merge conflict.

src/dynamic_honey_badger.rs

@@ -56,7 +56,7 @@ use clear_on_drop::ClearOnDrop;
 use serde::{Deserialize, Serialize};
 
 use crypto::{PublicKey, PublicKeySet, SecretKey, Signature};
-use fault_log::FaultLog;
+use fault_log::{FaultKind, FaultLog};
 use honey_badger::{self, HoneyBadger, Message as HbMessage};
 use messaging::{DistAlgorithm, NetworkInfo, Target, TargetedMessage};
 use sync_key_gen::{Accept, Propose, ProposeOutcome, SyncKeyGen};
@@ -349,6 +349,8 @@ where
                     }
                     if !self.verify_signature(&s_id, &sig, &node_tx)? {
                         info!("Invalid signature from {:?} for: {:?}.", s_id, node_tx);
+                        let fault_kind = FaultKind::InvalidNodeTransactionSignature;
+                        fault_log.append(s_id.clone(), fault_kind);
                         continue;
                     }
                     use self::NodeTransaction::*;

src/queueing_honey_badger.rs

@@ -12,11 +12,10 @@ use serde::{Deserialize, Serialize};
 use dynamic_honey_badger::{self, Batch as DhbBatch, DynamicHoneyBadger, Message};
 use fault_log::FaultLog;
 use messaging::{DistAlgorithm, NetworkInfo, TargetedMessage};
+use transaction_queue::TransactionQueue;
 
 pub use dynamic_honey_badger::{Change, ChangeState, Input};
 
-use transaction_queue::TransactionQueue;
-
 error_chain!{
     links {
         DynamicHoneyBadger(dynamic_honey_badger::Error, dynamic_honey_badger::ErrorKind);

tests/queueing_honey_badger.rs

@@ -1,9 +1,9 @@
 //! Network tests for Queueing Honey Badger.
 
+extern crate env_logger;
 extern crate hbbft;
 #[macro_use]
 extern crate log;
-extern crate env_logger;
 extern crate pairing;
 extern crate rand;
 #[macro_use]
@@ -16,10 +16,9 @@ use std::collections::BTreeMap;
 use std::iter::once;
 use std::rc::Rc;
 
-use rand::Rng;
-
 use hbbft::messaging::NetworkInfo;
 use hbbft::queueing_honey_badger::{Change, ChangeState, Input, QueueingHoneyBadger};
+use rand::Rng;
 
 use network::{Adversary, MessageScheduler, NodeUid, SilentAdversary, TestNetwork, TestNode};