@Test
public void testListEvents() {

    ConfigurationEvent event;
    // Makes sure the value passed to the constructor is properly returned.
    event = new ConfigurationEvent(conf, VARIABLE_NAME, ValueList.toString(LIST_VALUE, ";"));
    assert LIST_VALUE.equals(event.getListValue(";"));
    // Makes sure unset values are returned as null.
    event = new ConfigurationEvent(conf, VARIABLE_NAME, null);
    assert null == event.getListValue(";");
}