Basic testing, not full coverage.

app/lib/Firefly/Storage/Limit/LimitRepositoryInterface.php

@@ -19,6 +19,13 @@ interface LimitRepositoryInterface
      */
     public function store($data);
 
+    /**
+     * @param \Limit $limit
+     * @param $data
+     * @return mixed
+     */
+    public function update(\Limit $limit, $data);
+
     /**
      * @param \Budget $budget
      * @param Carbon  $start