@Override
    public void info(String msg) {
        logger.info(msg);
    }
@Test
    public void testInfo() {
        Logger mockLogger = mock(Logger.class);

        when(mockLogger.getName()).thenReturn("foo");

        InternalLogger logger = new Slf4JLogger(mockLogger);
        logger.info("a");

        verify(mockLogger).getName();
        verify(mockLogger).info("a");
    }