/
given.go
234 lines (214 loc) · 6.77 KB
/
given.go
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package fixtures
import (
"fmt"
"os"
"path/filepath"
"strings"
"testing"
"github.com/TwiN/go-color"
"github.com/stretchr/testify/assert"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes"
"sigs.k8s.io/yaml"
wfv1 "github.com/argoproj/argo-workflows/v3/pkg/apis/workflow/v1alpha1"
"github.com/argoproj/argo-workflows/v3/pkg/client/clientset/versioned/typed/workflow/v1alpha1"
"github.com/argoproj/argo-workflows/v3/workflow/hydrator"
)
type Given struct {
t *testing.T
client v1alpha1.WorkflowInterface
wfebClient v1alpha1.WorkflowEventBindingInterface
wfTemplateClient v1alpha1.WorkflowTemplateInterface
wftsClient v1alpha1.WorkflowTaskSetInterface
cwfTemplateClient v1alpha1.ClusterWorkflowTemplateInterface
cronClient v1alpha1.CronWorkflowInterface
hydrator hydrator.Interface
wf *wfv1.Workflow
wfeb *wfv1.WorkflowEventBinding
wfTemplates []*wfv1.WorkflowTemplate
cwfTemplates []*wfv1.ClusterWorkflowTemplate
cronWf *wfv1.CronWorkflow
kubeClient kubernetes.Interface
bearerToken string
}
// creates a workflow based on the parameter, this may be:
//
// 1. A file name if it starts with "@"
// 2. Raw YAML.
func (g *Given) Workflow(text string) *Given {
g.t.Helper()
g.wf = &wfv1.Workflow{}
g.readResource(text, g.wf)
g.checkImages(g.wf)
return g
}
func (g *Given) readResource(text string, v metav1.Object) {
g.t.Helper()
var file string
if strings.HasPrefix(text, "@") {
file = strings.TrimPrefix(text, "@")
} else {
f, err := os.CreateTemp("", "argo_e2e")
if err != nil {
g.t.Fatal(err)
}
_, err = f.Write([]byte(text))
if err != nil {
g.t.Fatal(err)
}
err = f.Close()
if err != nil {
g.t.Fatal(err)
}
file = f.Name()
}
{
file, err := os.ReadFile(filepath.Clean(file))
if err != nil {
g.t.Fatal(err)
}
err = yaml.Unmarshal(file, v)
if err != nil {
g.t.Fatal(err)
}
g.checkLabels(v)
}
}
func (g *Given) checkImages(wf interface{}) {
g.t.Helper()
var defaultImage string
var templates []wfv1.Template
switch baseTemplate := wf.(type) {
case *wfv1.Workflow:
if baseTemplate.Spec.TemplateDefaults != nil && baseTemplate.Spec.TemplateDefaults.Container != nil && baseTemplate.Spec.TemplateDefaults.Container.Image != "" {
defaultImage = baseTemplate.Spec.TemplateDefaults.Container.Image
templates = baseTemplate.Spec.Templates
}
case *wfv1.WorkflowTemplate:
if baseTemplate.Spec.TemplateDefaults != nil && baseTemplate.Spec.TemplateDefaults.Container != nil && baseTemplate.Spec.TemplateDefaults.Container.Image != "" {
defaultImage = baseTemplate.Spec.TemplateDefaults.Container.Image
templates = baseTemplate.Spec.Templates
}
case *wfv1.CronWorkflow:
if baseTemplate.Spec.WorkflowSpec.TemplateDefaults != nil && baseTemplate.Spec.WorkflowSpec.TemplateDefaults.Container != nil && baseTemplate.Spec.WorkflowSpec.TemplateDefaults.Container.Image != "" {
defaultImage = baseTemplate.Spec.WorkflowSpec.TemplateDefaults.Container.Image
templates = baseTemplate.Spec.WorkflowSpec.Templates
}
default:
g.t.Fatalf("Unsupported checkImage workflow type: %s", wf)
}
// discouraged
discouraged := func(image string) bool {
return image == "python:alpine3.6"
}
// Using an arbitrary image will result in slow and flakey tests as we can't really predict when they'll be
// downloaded or evicted. To keep tests fast and reliable you must use allowed images.
allowed := func(image string) bool {
return strings.Contains(image, "argoexec:") || image == "argoproj/argosay:v1" || image == "argoproj/argosay:v2" || discouraged(image)
}
for _, t := range templates {
container := t.Container
if container != nil {
var image string
if container.Image != "" {
image = container.Image
} else {
image = defaultImage
}
if !allowed(image) {
g.t.Fatalf("image not allowed in tests: %s", image)
}
// (⎈ |docker-desktop:argo)➜ ~ time docker run --rm argoproj/argosay:v2
// docker run --rm argoproj/argosay˜:v2 0.21s user 0.10s system 16% cpu 1.912 total
// docker run --rm argoproj/argosay:v1 0.17s user 0.08s system 31% cpu 0.784 total
if discouraged(image) {
_, _ = fmt.Println(color.Ize(color.Yellow, "DISCOURAGED IMAGE: "+g.t.Name()+" is using "+image))
}
}
}
}
func (g *Given) checkLabels(m metav1.Object) {
g.t.Helper()
if m.GetLabels() == nil {
m.SetLabels(map[string]string{})
}
if m.GetLabels()[Label] == "" {
m.GetLabels()[Label] = "true"
}
if m.GetLabels()[Label] == "" {
g.t.Fatalf("%s%s does not have %s label", m.GetName(), m.GetGenerateName(), Label)
}
}
func (g *Given) WorkflowName(name string) *Given {
g.t.Helper()
g.wf = &wfv1.Workflow{ObjectMeta: metav1.ObjectMeta{Name: name}}
return g
}
func (g *Given) WorkflowEventBinding(text string) *Given {
g.t.Helper()
g.wfeb = &wfv1.WorkflowEventBinding{}
g.readResource(text, g.wfeb)
return g
}
func (g *Given) WorkflowTemplate(text string) *Given {
g.t.Helper()
wfTemplate := &wfv1.WorkflowTemplate{}
g.readResource(text, wfTemplate)
g.checkImages(wfTemplate)
g.wfTemplates = append(g.wfTemplates, wfTemplate)
return g
}
func (g *Given) CronWorkflow(text string) *Given {
g.t.Helper()
g.cronWf = &wfv1.CronWorkflow{}
g.readResource(text, g.cronWf)
g.checkImages(g.cronWf)
return g
}
var NoError = func(t *testing.T, output string, err error) {
t.Helper()
assert.NoError(t, err, output)
}
var OutputRegexp = func(rx string) func(t *testing.T, output string, err error) {
return func(t *testing.T, output string, err error) {
t.Helper()
if assert.NoError(t, err, output) {
assert.Regexp(t, rx, output)
}
}
}
func (g *Given) Exec(name string, args []string, block func(t *testing.T, output string, err error)) *Given {
g.t.Helper()
output, err := Exec(name, args...)
block(g.t, output, err)
return g
}
func (g *Given) RunCli(args []string, block func(t *testing.T, output string, err error)) *Given {
return g.Exec("../../dist/argo", append([]string{"-n", Namespace}, args...), block)
}
func (g *Given) ClusterWorkflowTemplate(text string) *Given {
g.t.Helper()
cwfTemplate := &wfv1.ClusterWorkflowTemplate{}
g.readResource(text, cwfTemplate)
g.cwfTemplates = append(g.cwfTemplates, cwfTemplate)
return g
}
func (g *Given) When() *When {
return &When{
t: g.t,
wf: g.wf,
wfeb: g.wfeb,
wfTemplates: g.wfTemplates,
cwfTemplates: g.cwfTemplates,
cronWf: g.cronWf,
client: g.client,
wfebClient: g.wfebClient,
wfTemplateClient: g.wfTemplateClient,
wftsClient: g.wftsClient,
cwfTemplateClient: g.cwfTemplateClient,
cronClient: g.cronClient,
hydrator: g.hydrator,
kubeClient: g.kubeClient,
bearerToken: g.bearerToken,
}
}