result, err := etcd.CheckEtcdServers()
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if result {
		t.Fatal("CheckEtcdServers should not have succeeded")
	}
}

func TestPollCheckServer(t *testing.T) {
	err := utilwait.PollImmediate(1*time.Microsecond,
		2*time.Microsecond,
		EtcdConnection{ServerList: []string{""}}.CheckEtcdServers)
	if err == nil {
		t.Fatal("expected check to time out")
	}