@Override
    protected void doUpdate(final List<SelectorData> dataList) {
        dataList.forEach(pluginDataSubscriber::onSelectorSubscribe);
    }
@Test
    public void testDoUpdate() {
        List<SelectorData> selectorDataList = createFakeSelectorDataObjects(4);
        selectorDataHandler.doUpdate(selectorDataList);
        selectorDataList.forEach(verify(subscriber)::onSelectorSubscribe);
    }