jwillker

kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
  kubeadmConfigPatches:
  - |
    kind: InitConfiguration
    nodeRegistration:
      kubeletExtraArgs:
        node-labels: "ingress-ready=true"

jwillker

func assertName(t assert.TestingT, name string, deployment appsv1.Deployment) bool {
	// Only assert if theres a want value to assert
	// if not return true to don't fail the test
	if name == "" {
		return true
	}

	return assert.Equal(
		t,
		name,

jwillker

//more code
...
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			var deployment appsv1.Deployment
			// Render the deployment object
			err := Render(t, "../", "deployment.yaml", tt.args.Release, tt.args.Values, &deployment)
			if err != nil {
				fmt.Println(err)
			}

jwillker

func TestDeployTemplateRenders(t *testing.T) {
	t.Parallel()

	type args struct {
		Release string
		Values  map[string]string
	}

	type want struct {
		DeployName           string

jwillker

// 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})

jwillker

func TestDeployTemplateRendersMetadata(t *testing.T) {
	t.Parallel()
	var (
		// Default Helm values
		// Work as values.yaml for tests purposes
		deployDefaultValues = map[string]string{
			"app.version":           "0.1.0",
			"app.replicas":          "2",
			"app.component":         "api",
			"app.env":               "dev",

jwillker

{{- define "generic.fullname" -}}
{{- .Release.Name | trunc 6 -}}
{{- end }}

{{/*
Selector labels
*/}}
{{- define "generic.selectorLabels" -}}
app.kubernetes.io/name: {{ include "generic.fullname" .}}
app.kubernetes.io/instance: '{{ include "generic.fullname" . }}-{{ .Values.app.version }}'

jwillker

apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "generic.fullname" .}}
  labels: &labels
    {{- include "generic.commonLabels" . | nindent 4 }}
    {{- with .Values.app.labels }}
    {{- toYaml . | nindent 4 }}
    {{- end }}
  annotations: &annotations

jwillker

// An example of how to verify the rendered template object of a Helm Chart given various inputs.
func TestHelmBasicExampleTemplateRenderedDeployment(t *testing.T) {
	t.Parallel()

	// Path to the helm chart we will test
	helmChartPath, err := filepath.Abs("../examples/helm-basic-example")
	releaseName := "helm-basic"
	require.NoError(t, err)

	// Since we aren't deploying any resources, there is no need to setup kubectl authentication or helm home.

jwillker

apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "helm-basic-example.fullname" . }}
  namespace: {{ .Release.Namespace }}
  labels:
    # These labels are required by helm. You can read more about required labels in the chart best pracices guide:
    # https://docs.helm.sh/chart_best_practices/#standard-labels
    helm.sh/chart: {{ include "helm-basic-example.chart" . }}
    app.kubernetes.io/name: {{ include "helm-basic-example.name" . }}