test: add bytes to mebi bytes test

src/builtins/fetch.rs

@@ -75,4 +75,9 @@ mod tests {
     fn test_format_uptime_hours() {
         assert_eq!(format_uptime(3735), "1h 2m 15s");
     }
+
+    #[test]
+    fn test_bytes_to_mebi_bytes() {
+        assert_eq!(bytes_to_mebi_bytes(7628144640), 7274);
+    }
 }