Add a test for hash_key()

actix-http/src/ws/proto.rs

@@ -277,6 +277,12 @@ mod test {
         assert_eq!(format!("{}", OpCode::Bad), "BAD");
     }
 
+    #[test]
+    fn test_hash_key() {
+        let hash = hash_key(b"hello actix-web");
+        assert_eq!(&hash, "cR1dlyUUJKp0s/Bel25u5TgvC3E=");
+    }
+
     #[test]
     fn closecode_from_u16() {
         assert_eq!(CloseCode::from(1000u16), CloseCode::Normal);