existingConfigFilename: "istio-cni.conf",
		},
	}

	for _, c := range cases {
		t.Run(c.name, func(t *testing.T) {
			// Create temp directory for files
			cniNetDir := t.TempDir()
			cniBinDir := t.TempDir()

			// Create existing config file if specified in test case
			cniConfigFilePath := filepath.Join(cniNetDir, c.configFilename)

		K8sServicePort:        os.Getenv("KUBERNETES_SERVICE_PORT"),
		K8sNodeName:           os.Getenv("KUBERNETES_NODE_NAME"),
		K8sServiceAccountPath: constants.ServiceAccountPath,

		CNIBinSourceDir:  constants.CNIBinDir,
		CNIBinTargetDirs: []string{constants.HostCNIBinDir},
		MonitoringPort:   viper.GetInt(constants.MonitoringPort),

		ExcludeNamespaces: viper.GetString(constants.ExcludeNamespaces),

	"ambient_enabled": %t,
    "kubernetes": {
        "k8sapiroot": "APIRoot",
        "kubeconfig": "testK8sConfig",
        "nodename": "testNodeName",
        "excludenamespaces": "testNS",
        "cnibindir": "/testDirectory"
    }
    }`

	pod, ns := buildFakePodAndNSForClient()
	testDoAddRun(t, fmt.Sprintf(confNoPrevResult, false), testNSName, pod, ns)

	cniNetworkConfig     = `{
  "cniVersion": "0.3.1",
  "name": "istio-cni",
  "type": "istio-cni",
  "plugin_log_level": "__LOG_LEVEL__",
  "kubernetes": {
      "kubeconfig": "__KUBECONFIG_FILENAME__",
      "cni_bin_dir": "/path/cni/bin"
  }
}
`
)

func TestCreateCNIConfigFile(t *testing.T) {
	cases := []struct {
		name              string
		chainedCNIPlugin  bool
		specifiedConfName string