Update test macro to support async code

Author: Mingun

src/reader/buffered_reader.rs

@@ -426,7 +426,13 @@ mod test {
         input
     }
 
-    check!(identity, &mut Vec::new());
+    check!(
+        #[test]
+        read_event_impl,
+        read_until_close,
+        identity,
+        &mut Vec::new()
+    );
 
     #[cfg(feature = "encoding")]
     mod encoding {