Supress warnings: unused code in config.

tests/agreement_tests.rs

@@ -8,7 +8,8 @@ extern crate scopeguard;
 
 use rand::{thread_rng, Rng};
 
-mod config;
+// This is to remove the annoying "unused code in config" warnings.
+pub mod config;
 
 #[test]
 fn basic_agreement() -> config::Result<()> {

tests/election_tests.rs

@@ -6,7 +6,8 @@ extern crate ruaft;
 #[macro_use]
 extern crate scopeguard;
 
-mod config;
+// This is to remove the annoying "unused code in config" warnings.
+pub mod config;
 
 #[test]
 fn initial_election() -> config::Result<()> {

tests/persist_tests.rs

@@ -12,7 +12,8 @@ use std::sync::Arc;
 
 use rand::{thread_rng, Rng};
 
-mod config;
+// This is to remove the annoying "unused code in config" warnings.
+pub mod config;
 
 #[test]
 fn persist() -> config::Result<()> {