@Test
public void testLoggerAsClassAndLogBackLevelAsInvalid() {

    Assert.assertNotNull(logbackVerboseConfigurator);
    Assert.assertNotNull(loggerContext);
    try {
        logbackVerboseConfigurator.setLoggerLevel(this.getClass(), Level.TRACE);
        Assert.assertTrue(false);
    } catch (IllegalArgumentException ex) {
        Assert.assertTrue(ex.getMessage().equals("Unknown log level"));
    }
}