From dfdf8093ebbd4145864995627b812780de52f902 Mon Sep 17 00:00:00 2001
From: dmitri-mamrukov <37354211+dmitri-mamrukov@users.noreply.github.com>
Date: Mon, 23 Dec 2019 21:37:09 -0500
Subject: [PATCH] Enable a test and improve per clippy's suggestion.

---
 exercises/conversions/as_ref_mut.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/exercises/conversions/as_ref_mut.rs b/exercises/conversions/as_ref_mut.rs
index 8a907031f1..5e80e50878 100644
--- a/exercises/conversions/as_ref_mut.rs
+++ b/exercises/conversions/as_ref_mut.rs
@@ -13,7 +13,7 @@ fn byte_counter<T>(arg: T) -> usize {
 // Obtain the number of characters (not bytes) in the given argument
 // Add the AsRef trait appropriately as a trait bound
 fn char_counter<T>(arg: T) -> usize {
-    arg.as_ref().chars().collect::<Vec<_>>().len()
+    arg.as_ref().chars().count()
 }
 
 fn main() {
@@ -31,8 +31,10 @@ mod tests {
         let s = "Café au lait";
         assert_ne!(char_counter(s), byte_counter(s));
     }
+
+    #[test]
     fn same_counts() {
         let s = "Cafe au lait";
         assert_eq!(char_counter(s), byte_counter(s));
     }
-}
\ No newline at end of file
+}