}

	for i, testCase := range testCases {
		server := NewServer(testCase.addrs).
			UseHandler(testCase.handler).
			UseShutdownTimeout(DefaultShutdownTimeout)
		if testCase.certFn != nil {
			server = server.UseTLSConfig(&tls.Config{
				PreferServerCipherSuites: true,
				GetCertificate:           testCase.certFn,
			})
		}
		if server == nil {
			t.Fatalf("Case %v: server: expected: <non-nil>, got: <nil>", (i + 1))

}

// UseHandler configure final handler for this HTTP *Server
func (srv *Server) UseHandler(h http.Handler) *Server {
	srv.Handler = h
	return srv
}

// UseTLSConfig pass configured TLSConfig for this HTTP *Server
func (srv *Server) UseTLSConfig(cfg *tls.Config) *Server {
	srv.TLSConfig = cfg
	return srv
}

// UseBaseContext use custom base context for this HTTP *Server

		// Allow grid to start after registering all services.
		xioutil.SafeClose(globalGridStart)

		httpServer := xhttp.NewServer(getServerListenAddrs()).
			UseHandler(setCriticalErrorHandler(corsHandler(handler))).
			UseTLSConfig(newTLSConfig(getCert)).
			UseShutdownTimeout(globalServerCtxt.ShutdownTimeout).
			UseIdleTimeout(globalServerCtxt.IdleTimeout).
			UseReadHeaderTimeout(globalServerCtxt.ReadHeaderTimeout).