testing

Documentation

Index

• func GenerateNameReactor(action ktesting.Action) (bool, runtime.Object, error)
• func SecretDataReactor(action ktesting.Action) (bool, runtime.Object, error)

Examples

• GenerateNameReactor
• SecretDataReactor

Functions

func GenerateNameReactor

func GenerateNameReactor(action ktesting.Action) (bool, runtime.Object, error)

GenerateNameReactor sets the metav1.Name of an object, if metav1.GenerateName was used. It returns "handled" == false, so the test client can continue to the next ReactionFunc.

Example

package main

import (
	"context"
	"fmt"

	v1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/client-go/kubernetes/fake"
)

var ctx = context.Background()

func main() {
	mockStringRandFunc() // only for testing
	clientset := fake.NewSimpleClientset()
	clientset.PrependReactor("create", "pods", GenerateNameReactor)

	pod := &v1.Pod{
		ObjectMeta: metav1.ObjectMeta{
			Namespace:    "default",
			GenerateName: "testpod-",
		},
		Spec: v1.PodSpec{
			Containers: []v1.Container{
				{
					Name:  "nginx",
					Image: "nginx",
				},
			},
		},
	}

	createdPod, _ := clientset.CoreV1().Pods(pod.Namespace).Create(ctx, pod, metav1.CreateOptions{})

	fmt.Printf("Name: %s", createdPod.Name) //remember: the pods Name field was not set, only GenerateName

	unmockStringRandFunc()
}

var stringRandOrigFunc = stringRandFunc
var stringRandMockFunc = func(n int) string {
	return "hm7shz2o"
}

func mockStringRandFunc() {
	stringRandFunc = stringRandMockFunc
}

func unmockStringRandFunc() {
	stringRandMockFunc = stringRandOrigFunc
}

Output:

Name: testpod-hm7shz2o

func SecretDataReactor

func SecretDataReactor(action ktesting.Action) (bool, runtime.Object, error)

SecretDataReactor sets the secret.Data field based on the values from secret.StringData

Example

clientset := fake.NewSimpleClientset()
clientset.PrependReactor("create", "secrets", SecretDataReactor)

secret := &v1.Secret{
	ObjectMeta: metav1.ObjectMeta{
		Namespace: "default",
		Name:      "my-secret",
	},
	StringData: map[string]string{
		"my-key": "my-value",
	},
	Type: v1.SecretTypeOpaque,
}

createdSecret, _ := clientset.CoreV1().Secrets(secret.Namespace).Create(ctx, secret, metav1.CreateOptions{})

fmt.Printf("secret.Data[\"my-key\"]: %s", string(createdSecret.Data["my-key"])) //remember: the secrets StringData field was set, not the Data field

Output:

secret.Data["my-key"]: my-value