@Test
    public void testJavaToLevelMapping () {
        assertTrue(LogLevel.ERROR   == LogLevel.getVespaLogLevel(Level.SEVERE));
        assertTrue(LogLevel.WARNING == LogLevel.getVespaLogLevel(Level.WARNING));
        assertTrue(LogLevel.INFO    == LogLevel.getVespaLogLevel(Level.INFO));
        assertTrue(LogLevel.CONFIG  == LogLevel.getVespaLogLevel(Level.CONFIG));
        assertTrue(LogLevel.DEBUG   == LogLevel.getVespaLogLevel(Level.FINE));
        assertTrue(LogLevel.DEBUG   == LogLevel.getVespaLogLevel(Level.FINER));
        assertTrue(LogLevel.SPAM    == LogLevel.getVespaLogLevel(Level.FINEST));
    }
Test that given the log level name we are able to
map it to the correct static instance.
vespalog/src/test/java/com/yahoo/log/LogLevelTestCase.java