err := externalCommand.Run()

	if err != nil || len(stderr.Bytes()) != 0 {
		return stderr.String(), err
	}

	return strings.TrimSuffix(stdout.String(), "\n"), err
}

func Execute(cmd string, args ...string) error {
	log.Debugf("Running command: %s %s", cmd, strings.Join(args, " "))
	externalCommand := exec.Command(cmd, args...)
	stdout := &bytes.Buffer{}
	stderr := &bytes.Buffer{}

			if len(expectedOut) == 0 {
				t.Fatal("expected output is empty")
			}

			var out bytes.Buffer
			rootCmd := Cmd(ctx)
			rootCmd.SetArgs(tt.args)
			rootCmd.SetOut(&out)
			rootCmd.SetErr(&out)

			fErr := rootCmd.Execute()
			if fErr != nil {
				t.Fatal(fErr)
			}
			output := out.String()
			if output != expectedOut {
				t.Fatalf("expected %s, got %s", expectedOut, output)
			}
		})

		fmt.Fprintf(os.Stderr, "Could not initialize: %v\n", err)
		exitCode := cmd.GetExitCode(err)
		os.Exit(exitCode)
	}

	rootCmd := cmd.GetRootCmd(os.Args[1:])

	log.EnableKlogWithCobra()

	if err := rootCmd.Execute(); err != nil {
		exitCode := cmd.GetExitCode(err)
		os.Exit(exitCode)
	}

		pod.UID: pod,
	})
	if err != nil {
		panic(err)
	}
	defer podUIDNetns.Close()

	if len(podUIDNetns) == 0 {
		t.Fatal("expected to find pod netns")
	}

	expectedUID := "863b91d4-4b68-4efa-917f-4b560e3e86aa"
	if podUIDNetns[expectedUID] == (WorkloadInfo{}) {
		t.Fatal("expected to find pod netns under pod uid")
	}
}

// copied and modified from spire

func TestGetContainerIDFromCGroups(t *testing.T) {

	t.Helper()

	var out bytes.Buffer
	cmd.SetArgs(c.args)
	cmd.SetOut(&out)
	cmd.SetErr(&out)
	cmd.SilenceUsage = true
	if c.namespace != "" {
		namespace = c.namespace
	}

	fErr := cmd.Execute()
	output := out.String()

	if c.expectedException {
		if fErr == nil {
			t.Fatalf("Wanted an exception, "+
				"didn't get one, output was %q", output)
		}
	} else {
		if fErr != nil {

	// Timeout is how long to wait before giving up on XDS
	Timeout time.Duration

	// InsecureSkipVerify skips client verification the server's certificate chain and host name.
	InsecureSkipVerify bool

	// XDSSAN is the expected Subject Alternative Name of the XDS server
	XDSSAN string

	// Plaintext forces plain text communication (for talking to port 15010)
	Plaintext bool

	// GCP project number or ID to use for XDS calls, if any.

	switch format {
	case LogFormat:
		return printLog(ms, colorize), nil
	case JSONFormat:
		return printJSON(ms)
	case YAMLFormat:
		return printYAML(ms)
	default:
		return "", fmt.Errorf("invalid format, expected one of %v but got %q", MsgOutputFormatKeys, format)
	}
}

func printLog(ms diag.Messages, colorize bool) string {
	logOutput := make([]string, 0, len(ms))
	for _, m := range ms {

	"fmt"
	"os"
	"strings"
	"testing"

	"istio.io/istio/operator/pkg/util/clog"
)

type profileDiffTestcase struct {
	args           string
	shouldFail     bool
	expectedString string // String output is expected to contain
	notExpected    string // String the output must NOT contain
}

func TestProfileDiff(t *testing.T) {
	cases := []profileDiffTestcase{
		{
			args:       "profile diff demo default --unknown-flag",

	}

	return nil
}

func pruneHostIPset(expected sets.Set[netip.Addr], hostsideProbeSet *ipset.IPSet) error {
	actualIPSetContents, err := hostsideProbeSet.ListEntriesByIP()
	if err != nil {
		log.Warnf("unable to list IPSet: %v", err)
		return err
	}
	actual := sets.New[netip.Addr](actualIPSetContents...)
	stales := actual.DifferenceInPlace(expected)

	for staleIP := range stales {

	infos, err := builder.Do().Infos()
	if err != nil {
		return nil, "", "", "", fmt.Errorf("failed retrieving: %v in the %q namespace", err, ns)
	}
	if len(infos) != 1 {
		return nil, "", "", "", errors.New("expected a resource")
	}
	_, ok := infos[0].Object.(*corev1.Pod)
	if ok {
		// If we got a pod, just use its name
		return nil, infos[0].Name, infos[0].Namespace, "", nil
	}