From e9f7188c1ceb7fe9ae0247b9c04f6d4ff4626f82 Mon Sep 17 00:00:00 2001
From: Daniel Tomlinson <dtomlinson@panaetius.co.uk>
Date: Mon, 16 Nov 2020 23:04:36 +0000
Subject: [PATCH] Adding empty string case + test

---
 src/hands.rs | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/hands.rs b/src/hands.rs
index 333ec1c..f03a88d 100644
--- a/src/hands.rs
+++ b/src/hands.rs
@@ -1,8 +1,10 @@
 pub fn handify(input: &str) -> String {
     let input = input.to_uppercase();
     let input = input.trim().to_owned();
-    let input = input.replace(" ", " 👏 ");
-    let input = format!("👏 {} 👏", input);
+    let mut input = input.replace(" ", " 👏 ");
+    if !input.is_empty() {
+        input = format!("👏 {} 👏", input);
+    }
     input
 }
 
@@ -17,3 +19,9 @@ fn handify_test_with_trailing_spaces() {
     let input = " hello world ";
     assert_eq!(handify(input), "👏 HELLO 👏 WORLD 👏")
 }
+
+#[test]
+fn handify_test_empty_string() {
+    let input = "";
+    assert_eq!(handify(input), "");
+}