render.go

// Render receive helm parameters and render a k8s object
func Render(t *testing.T, helmChartPath, templateFile, release string, values map[string]string, k8sObject interface{}) error {
	// Passing values to helm chart.
	options := &helm.Options{
		SetValues: values,
	}

	templateFile = fmt.Sprintf("templates/%s", templateFile)

	output, err := helm.RenderTemplateE(t, options, helmChartPath, release, []string{templateFile})
	if err != nil {
		return err
	}

	// ensure the k8s object is rendered correctly.
	err = helm.UnmarshalK8SYamlE(t, output, &k8sObject)
	if err != nil {
		return err
	}

	return nil
}