@Override
    protected void doDelete(final List<PluginData> dataList) {
        dataList.forEach(pluginDataSubscriber::unSubscribe);
    }
@Test
    public void testDoDelete() {
        List<PluginData> pluginDataList = createFakePluginDataObjects(3);
        pluginDataHandler.doDelete(pluginDataList);
        pluginDataList.forEach(verify(subscriber)::unSubscribe);
    }