@Test public void levelChangeTest() { final CountingAppender appender = new CountingAppender(); log4jLogger.addAppender(appender); log4jLogger.setLevel(Level.INFO); log4jLogger.error(MESSAGE); log4jLogger.fatal(MESSAGE); log4jLogger.warn(MESSAGE); log4jLogger.info(MESSAGE); log4jLogger.debug(MESSAGE); log4jLogger.trace(MESSAGE); assertEquals(4, appender.counter); }