prevResult := conf.PrevResult.(*cniv1.Result)
			prevResIps = prevResult.IPs
		}

		// Only send event if this pod "would be" an ambient-watched pod - otherwise skip
		if podIsAmbient {
			cniClient := newCNIClient(conf.CNIEventAddress, constants.CNIAddEventPath)
			if err = PushCNIEvent(cniClient, args, prevResIps, podName, podNamespace); err != nil {
				log.Errorf("istio-cni cmdAdd failed to signal node Istio CNI agent: %s", err)

// returns the test server URL and a dispose func for the test server
func setupCNIEventClientWithMockServer(serverErr bool) (string, func() bool) {
	cniAddServerCalled := false
	// replace the global CNI client with mock
	newCNIClient = func(address, path string) CNIEventClient {
		c := http.DefaultClient

		eventC := CNIEventClient{
			client: c,
			url:    address + path,
		}
		return eventC
	}