@BeforeEach
    public void setUp() {
        shenyuServiceInstance = new ShenyuServiceInstance("localhost", 8080);
    }
The Test Case For {@link ShenyuServiceInstance}.
shenyu-plugin/shenyu-plugin-proxy/shenyu-plugin-rpc/shenyu-plugin-grpc/src/test/java/org/apache/shenyu/plugin/grpc/resolver/ShenyuServiceInstanceTest.java