@Test
public void testNOPCompass() {

    Compass compass = MetricManager.getCompass("test", MetricName.build("com.taobao.test"));
    Compass.Context context = compass.time();
    context.stop();
    context.success();
    context.error("error1");
    Assert.assertEquals(0, compass.getCount());
    Assert.assertEquals(0, compass.getSuccessCount());
    Assert.assertEquals(0, compass.getErrorCodeCounts().size());
}