@Test
    public void getLeastCallCount() throws Exception {
        Assert.assertEquals(FaultToleranceConfigManager.getLeastCallCount(null), defaultConfig.getLeastCallCount());
    }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
fault/fault-tolerance/src/test/java/com/alipay/sofa/rpc/client/aft/FaultToleranceConfigManagerTest.java