@Test
public void testChangeLevel() {
LoggingHandler loggingHandler = new LoggingHandler(Level.INFO);
loggingHandler.setBeanFactory(mock(BeanFactory.class));
loggingHandler.afterPropertiesSet();
DirectFieldAccessor accessor = new DirectFieldAccessor(loggingHandler);
Log log = (Log) accessor.getPropertyValue("messageLogger");
log = spy(log);
accessor.setPropertyValue("messageLogger", log);
when(log.isInfoEnabled()).thenReturn(true);
loggingHandler.handleMessage(new GenericMessage<>("foo"));
verify(log, times(1)).info(Mockito.anyString());
verify(log, never()).warn(Mockito.anyString());
loggingHandler.setLevel(Level.WARN);
loggingHandler.handleMessage(new GenericMessage<>("foo"));
verify(log, times(1)).info(Mockito.anyString());
verify(log, times(1)).warn(Mockito.anyString());
}
