@Test
@AgentAttachmentRule.Enforce
public void FileSystemTracer_should_attach_to_read_Hdfs() throws NoSuchMethodException, IllegalAccessException, InvocationTargetException, ClassNotFoundException {

    Path toRead = new Path("/test/to_read_hdfs");
    createSrcPathHdfs(toRead);
    Method open = clazzAFS.getMethod("open", Path.class,
        int.class);
    open.invoke(hdfs, toRead, 1024);
    checkEvent(FsAction.READ.name(), toRead);
}