Adding phony salt to tests

Author: Mariusz Reichert

tests/common.rs

@@ -38,6 +38,7 @@ pub struct TestRunner {
     daemon: Arc<Daemon>,
     mempool: Arc<RwLock<Mempool>>,
     metrics: Metrics,
+    salt_rwlock: Arc<RwLock<String>>,
 }
 
 impl TestRunner {
@@ -179,6 +180,8 @@ impl TestRunner {
             None, // TODO
         ));
 
+        let salt_rwlock = Arc::new(RwLock::new(String::new("$")));
+
         Ok(TestRunner {
             config,
             node,
@@ -188,6 +191,7 @@ impl TestRunner {
             daemon,
             mempool,
             metrics,
+            salt_rwlock,
         })
     }