public static GrpcUpstream buildDefaultGrpcUpstream(final String host, final Integer port) {
        return GrpcUpstream.builder().upstreamUrl(buildUrl(host, port))
                .weight(DEFAULT_WEIGHT).timestamp(System.currentTimeMillis())
                .status(Objects.nonNull(port) && StringUtils.isNotBlank(host))
                .build();
    }
@Test
    public void buildDefaultGrpcUpstream() {
        GrpcUpstream grpcUpstream = CommonUpstreamUtils.buildDefaultGrpcUpstream(HOST, PORT);
        Assert.assertNotNull(grpcUpstream);
        Assert.assertEquals(HOST + ":" + PORT, grpcUpstream.getUpstreamUrl());
        Assert.assertNull(grpcUpstream.getProtocol());
    }