import (
	"testing"

	install "istio.io/istio/cni/test"
	"istio.io/istio/pkg/test/env"
)

type testCase struct {
	name             string
	chainedCNIPlugin bool
	preConfFile      string
	resultFileName   string
	// Must set chainedCNIPlugin to true if delayedConfFile is specified
	delayedConfFile        string
	expectedOutputFile     string
	expectedPostCleanFile  string
	cniConfDirOrderedFiles []string
}

		cfgFile := config.InstallConfig{
			CNIConfName:      c.specifiedConfName,
			ChainedCNIPlugin: c.chainedCNIPlugin,
			PluginLogLevel:   "debug",
			CNIAgentRunDir:   kubeconfigFilename,
		}

		cfg := config.InstallConfig{
			CNIConfName:      c.specifiedConfName,
			ChainedCNIPlugin: c.chainedCNIPlugin,
			PluginLogLevel:   "debug",
			CNIAgentRunDir:   kubeconfigFilename,
		}

		expectedFailure   bool
		cniConfigFilename string
		cniConfName       string
		chainedCNIPlugin  bool
		existingConfFiles map[string]string // {srcFilename: targetFilename, ...}
	}{
		{
			name:              "preempted config",
			expectedFailure:   true,
			cniConfigFilename: "list.conflist",
			chainedCNIPlugin:  true,

			CNIBinTargetDirs:      []string{tempCNIBinDir},
			K8sServicePort:        "443",
			K8sServiceHost:        "10.110.0.1",
			MonitoringPort:        0,
			CNIAgentRunDir:        "/tmp",
			ChainedCNIPlugin:      chainedCNIPlugin,
			PluginLogLevel:        "debug",
			ExcludeNamespaces:     "istio-system",
			KubeconfigMode:        constants.DefaultKubeconfigMode,
			CNIConfName:           envPreconf,

func (c InstallConfig) String() string {
	var b strings.Builder
	b.WriteString("MountedCNINetDir: " + c.MountedCNINetDir + "\n")
	b.WriteString("CNIConfName: " + c.CNIConfName + "\n")
	b.WriteString("ChainedCNIPlugin: " + fmt.Sprint(c.ChainedCNIPlugin) + "\n")
	b.WriteString("CNIAgentRunDir: " + fmt.Sprint(c.CNIAgentRunDir) + "\n")

	b.WriteString("PluginLogLevel: " + c.PluginLogLevel + "\n")

	cniConfigFilepath, err := getCNIConfigFilepath(ctx, cfg.CNIConfName, cfg.MountedCNINetDir, cfg.ChainedCNIPlugin)
	if err != nil {
		return "", err
	}

	if cfg.ChainedCNIPlugin {
		if !file.Exists(cniConfigFilepath) {
			return "", fmt.Errorf("CNI config file %s removed during configuration", cniConfigFilepath)
		}

	installCfg := config.InstallConfig{
		MountedCNINetDir: viper.GetString(constants.MountedCNINetDir),
		CNIConfName:      viper.GetString(constants.CNIConfName),
		ChainedCNIPlugin: viper.GetBool(constants.ChainedCNIPlugin),
		CNIAgentRunDir:   viper.GetString(constants.CNIAgentRunDir),

		// Whatever user has set (with --log_output_level) for 'cni-plugin', pass it down to the plugin. It will use this to determine

// limitations under the License.

package constants

// Command line arguments
const (
	// Install
	MountedCNINetDir         = "mounted-cni-net-dir"
	CNIConfName              = "cni-conf-name"
	ChainedCNIPlugin         = "chained-cni-plugin"
	CNINetworkConfigFile     = "cni-network-config-file"
	CNINetworkConfig         = "cni-network-config"
	LogLevel                 = "log-level"
	KubeconfigMode           = "kubeconfig-mode"

func (in *Installer) Cleanup() error {
	installLog.Info("cleaning up CNI installation")
	if len(in.cniConfigFilepath) > 0 && file.Exists(in.cniConfigFilepath) {
		if in.cfg.ChainedCNIPlugin {
			installLog.Infof("removing Istio CNI config from CNI config file: %s", in.cniConfigFilepath)

			// Read JSON from CNI config file
			cniConfigMap, err := util.ReadCNIConfigMap(in.cniConfigFilepath)