@Test
public void testEmptyMode() {

    String[] args = new String[] {"-h", "127.0.0.1", "-p", "8088"};
    parameterParser = new ParameterParser(args);
    //always set store.mode=file in test/resource/file.conf, if not will cause SessionStoreTest's case fail.
    Assertions.assertEquals("file", parameterParser.getStoreMode());
}