@Test
public void testSimpleAppender() throws JoranException {

  LoggerContext context = new LoggerContext();
  URL resource = getClass().getResource("/logback-with-composite-appender.xml");
  JoranConfigurator configurator = new JoranConfigurator();
  configurator.setContext(context);
  configurator.doConfigure(resource);
  ch.qos.logback.classic.Logger logger = context.getLogger(Logger.ROOT_LOGGER_NAME);
  CompositeAppender<ILoggingEvent> composite =
      (CompositeAppender<ILoggingEvent>) logger.getAppender("CONSOLE_AND_FILE");
  ListAppender<ILoggingEvent> file = (ListAppender<ILoggingEvent>) composite.getAppender("FILE");
  ListAppender<ILoggingEvent> console =
      (ListAppender<ILoggingEvent>) composite.getAppender("CONSOLE");
  logger.info("hello world");
  assertThat(file.list.get(0).getMessage()).isEqualTo("hello world");
  assertThat(console.list.get(0).getMessage()).isEqualTo("hello world");
}