etcdConfig.ListenClientUrls[i].Scheme = "https"
	}
	for i := range etcdConfig.AdvertiseClientUrls {
		etcdConfig.AdvertiseClientUrls[i].Scheme = "https"
	}

	client := testserver.RunEtcd(t, etcdConfig)
	cfg := storagebackend.Config{
		Type: storagebackend.StorageTypeETCD3,
		Transport: storagebackend.TransportConfig{
			ServerList:     client.Endpoints(),
			CertFile:       certFile,

type setupOption func(*setupOptions)

func withClientConfig(config *embed.Config) setupOption {
	return func(options *setupOptions) {
		options.client = func(t testing.TB) *clientv3.Client {
			return testserver.RunEtcd(t, config)
		}
	}
}

func withPrefix(prefix string) setupOption {
	return func(options *setupOptions) {
		options.prefix = prefix
	}
}