public void cleanSelectorData() {
        SELECTOR_MAP.clear();
    }
@Test
    public void testCleanSelectorData() throws NoSuchFieldException, IllegalAccessException {
        SelectorData firstCachedSelectorData = SelectorData.builder().id("1").pluginName(mockPluginName1).build();
        SelectorData secondCachedSelectorData = SelectorData.builder().id("2").pluginName(mockPluginName2).build();
        ConcurrentHashMap<String, List<SelectorData>> selectorMap = getFieldByName(selectorMapStr);
        selectorMap.put(mockPluginName1, Lists.newArrayList(firstCachedSelectorData));
        selectorMap.put(mockPluginName2, Lists.newArrayList(secondCachedSelectorData));

        BaseDataCache.getInstance().cleanSelectorData();
        assertNull(selectorMap.get(mockPluginName1));
        assertNull(selectorMap.get(mockPluginName2));
    }