@Test
    public void getProviderInfos() throws Exception {
        ProviderGroup pg = new ProviderGroup("xxx", null);
        Assert.assertNotNull(pg.getProviderInfos());
        Assert.assertTrue(pg.getProviderInfos().size() == 0);
    }
@author <a href="mailto:zhanggeng.zg@antfin.com">GengZhang</a>
core/api/src/test/java/com/alipay/sofa/rpc/client/ProviderGroupTest.java