public static GrpcUpstream buildAliveGrpcUpstream(final String upstreamUrl) {
        return GrpcUpstream.builder().upstreamUrl(upstreamUrl).weight(50)
                .timestamp(System.currentTimeMillis()).build();
    }
@Test
    public void buildAliveGrpcUpstream() {
        GrpcUpstream grpcUpstream = CommonUpstreamUtils.buildAliveGrpcUpstream(HOST);
        Assert.assertNotNull(grpcUpstream);
        Assert.assertEquals(HOST, grpcUpstream.getUpstreamUrl());
        Assert.assertNull(grpcUpstream.getProtocol());
    }