@Override
    public KubevirtApiConfig removeApiConfig(String endpoint) {
        checkArgument(!Strings.isNullOrEmpty(endpoint), ERR_NULL_ENDPOINT);
        KubevirtApiConfig config = configStore.removeApiConfig(endpoint);
        log.info(String.format(MSG_CONFIG, endpoint, MSG_REMOVED));
        return config;
    }
@Test(expected = IllegalArgumentException.class)
    public void testRemoveNullConfig() {
        target.removeApiConfig(null);
    }