// the supplied parameters.
func renderFeatureComponentPathTemplate(tmpl string, componentName name.ComponentName) (string, error) {
	type Temp struct {
		ComponentName name.ComponentName
	}
	ts := Temp{
		ComponentName: componentName,
	}
	return util.RenderTemplate(tmpl, ts)
}

	"istio.io/istio/pkg/test/framework/components/istio"
	"istio.io/istio/pkg/test/framework/components/namespace"
	"istio.io/istio/pkg/test/framework/label"
	"istio.io/istio/pkg/test/framework/resource"
	"istio.io/istio/pkg/test/util/tmpl"
	"istio.io/istio/tests/integration/security/util/cert"
)

var (
	inst              istio.Instance
	apps              deployment.SingleNamespaceView
	client            echo.Instances

	"istio.io/istio/pkg/test/framework/resource/config/apply"
	"istio.io/istio/pkg/test/framework/resource/config/cleanup"
	"istio.io/istio/pkg/test/scopes"
	"istio.io/istio/pkg/test/util/file"
	"istio.io/istio/pkg/test/util/tmpl"
	"istio.io/istio/pkg/test/util/yml"
)

var _ config.Factory = &configFactory{}

type configFactory struct {
	ctx      resource.Context
	clusters []cluster.Cluster
	prefix   string
}

		// "alpha" is created after "beta". This triggers a mismatch in the conflict resolution logic in Ingress and VirtualService, leading to unexpected results
		kubeConfig: tmpl.MustEvaluate(cfg, map[string]string{"Name": "alpha", "Time": "2020-01-01T00:00:00Z"}) +
			tmpl.MustEvaluate(cfg, map[string]string{"Name": "beta", "Time": "2010-01-01T00:00:00Z"}),
		calls: []simulation.Expect{
			{
				Name: "http alpha",
				Call: simulation.Call{

		}
	} else {
		if we.Network != tmpl.Template.Network {
			err = multierror.Append(fmt.Errorf("entry has network %s; expected to match group template network %s", we.Network, tmpl.Template.Network))
		}
	}

	loc := tmpl.Template.Locality
	if node.Locality != nil {
		loc = util.LocalityToString(node.Locality)
	}
	if we.Locality != loc {

			// substitution.
			if !subst {
				st.subs.add(a)
			}
			args := st.templateArgs()
			tmpl := &Template{Name: a, Args: args}
			if isCast {
				st.setTemplate(a, tmpl)
				st.clearTemplateArgs(args)
				isCast = false
			}
			a = tmpl
		}
		if isCast {
			st.setTemplate(a, nil)
		}
		return a, false
	}

	a, isCast := st.unqualifiedName(module)

	now := time.Now()
	tmpl := &x509.Certificate{Subject: pkix.Name{CommonName: "panda"}, SerialNumber: big.NewInt(1234), NotBefore: now, NotAfter: now.Add(duration)}

	der, err := x509.CreateCertificate(rand.Reader, tmpl, caCert, crPublicKey, caPrivateKey)
	if err != nil {
		t.Fatal(err)
	}

}

func configFile(config string, templateFile string) string {
	suffix := "json"
	// Envoy will interpret the file extension to determine the type. We should detect yaml inputs
	if strings.HasSuffix(templateFile, ".yaml.tmpl") || strings.HasSuffix(templateFile, ".yaml") {
		suffix = "yaml"
	}
	return path.Join(config, fmt.Sprintf(EnvoyFileTemplate, suffix))
}

func newTemplate(templateFilePath string) (*template.Template, error) {

	type Inventory struct {
		Material string
		Count    uint
	}
	sweaters := Inventory{"wool", 17}
	tmpl, err := template.New("test").Parse("{{.Count}} items are made of {{.Material}}")
	if err != nil { panic(err) }
	err = tmpl.Execute(os.Stdout, sweaters)
	if err != nil { panic(err) }

More intricate examples appear below.

Text and spaces

		if p != nil {
			opts.Configs = append(opts.Configs, *p)
		}
	}
	configStr := opts.ConfigString
	if opts.ConfigTemplateInput != nil {
		tmpl := template.Must(template.New("").Funcs(sprig.TxtFuncMap()).Parse(opts.ConfigString))
		var buf bytes.Buffer
		if err := tmpl.Execute(&buf, opts.ConfigTemplateInput); err != nil {
			t.Fatalf("failed to execute template: %v", err)
		}
		configStr = buf.String()
	}