fix tests

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/minecraft/mod/Resource.cpp

@@ -161,8 +161,10 @@ bool Resource::enable(EnableAction action)
         path.chop(9);
     } else {
         path += ".disabled";
+        if (QFile::exists(path)) {
             path = FS::getUniqueResourceName(path);
         }
+    }
     if (!file.rename(path))
         return false;