@Test
public void FileHeuristic_should_update_write_counter_for_every_FileEvent_write_whatever_the_container() {

    DataAccessEventProtos.FsEvent event = newFsEvent(FsAction.WRITE);
    heuristic.compute("app_1", "att_1", "cid_1", event);
    assertThat(heuristic.written.forApp("app_1", "att_1").getCount(), is(1));
    heuristic.compute("app_1", "att_1", "cid_2", event);
    assertThat(heuristic.written.forApp("app_1", "att_1").getCount(), is(2));
}