mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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346 lines
8.9 KiB
Go
346 lines
8.9 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package deployment
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import (
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"reflect"
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"testing"
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"time"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/testapi"
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"k8s.io/kubernetes/pkg/api/unversioned"
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"k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/client/testing/fake"
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"k8s.io/kubernetes/pkg/client/unversioned/testclient/simple"
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"k8s.io/kubernetes/pkg/runtime"
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)
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func newPod(now time.Time, ready bool, beforeSec int) api.Pod {
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conditionStatus := api.ConditionFalse
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if ready {
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conditionStatus = api.ConditionTrue
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}
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return api.Pod{
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Status: api.PodStatus{
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Conditions: []api.PodCondition{
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{
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Type: api.PodReady,
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LastTransitionTime: unversioned.NewTime(now.Add(-1 * time.Duration(beforeSec) * time.Second)),
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Status: conditionStatus,
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},
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},
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},
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}
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}
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func TestGetReadyPodsCount(t *testing.T) {
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now := time.Now()
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tests := []struct {
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pods []api.Pod
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minReadySeconds int
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expected int
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}{
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{
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[]api.Pod{
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newPod(now, true, 0),
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newPod(now, true, 2),
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newPod(now, false, 1),
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},
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1,
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1,
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},
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{
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[]api.Pod{
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newPod(now, true, 2),
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newPod(now, true, 11),
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newPod(now, true, 5),
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},
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10,
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1,
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},
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}
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for _, test := range tests {
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if count := getReadyPodsCount(test.pods, test.minReadySeconds); count != test.expected {
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t.Errorf("Pods = %#v, minReadySeconds = %d, expected %d, got %d", test.pods, test.minReadySeconds, test.expected, count)
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}
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}
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}
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// generatePodFromRC creates a pod, with the input rc's selector and its template
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func generatePodFromRC(rc api.ReplicationController) api.Pod {
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return api.Pod{
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ObjectMeta: api.ObjectMeta{
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Labels: rc.Spec.Selector,
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},
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Spec: rc.Spec.Template.Spec,
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}
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}
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func generatePod(labels map[string]string, image string) api.Pod {
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return api.Pod{
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ObjectMeta: api.ObjectMeta{
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Labels: labels,
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},
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Name: image,
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Image: image,
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ImagePullPolicy: api.PullAlways,
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TerminationMessagePath: api.TerminationMessagePathDefault,
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},
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},
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},
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}
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}
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func generateRCWithLabel(labels map[string]string, image string) api.ReplicationController {
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return api.ReplicationController{
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ObjectMeta: api.ObjectMeta{
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Name: api.SimpleNameGenerator.GenerateName("rc"),
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Labels: labels,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: 1,
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Selector: labels,
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Template: &api.PodTemplateSpec{
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Name: image,
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Image: image,
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ImagePullPolicy: api.PullAlways,
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TerminationMessagePath: api.TerminationMessagePathDefault,
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},
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},
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},
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},
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},
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}
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}
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// generateRC creates a replication controller, with the input deployment's template as its template
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func generateRC(deployment extensions.Deployment) api.ReplicationController {
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template := GetNewRCTemplate(deployment)
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return api.ReplicationController{
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ObjectMeta: api.ObjectMeta{
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Name: api.SimpleNameGenerator.GenerateName("rc"),
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Labels: template.Labels,
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},
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Spec: api.ReplicationControllerSpec{
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Template: &template,
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Selector: template.Labels,
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},
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}
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}
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// generateDeployment creates a deployment, with the input image as its template
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func generateDeployment(image string) extensions.Deployment {
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podLabels := map[string]string{"name": image}
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terminationSec := int64(30)
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return extensions.Deployment{
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ObjectMeta: api.ObjectMeta{
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Name: image,
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},
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Spec: extensions.DeploymentSpec{
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Replicas: 1,
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Selector: podLabels,
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UniqueLabelKey: "deployment.kubernetes.io/podTemplateHash",
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Template: api.PodTemplateSpec{
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ObjectMeta: api.ObjectMeta{
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Labels: podLabels,
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},
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Name: image,
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Image: image,
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ImagePullPolicy: api.PullAlways,
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TerminationMessagePath: api.TerminationMessagePathDefault,
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},
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},
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DNSPolicy: api.DNSClusterFirst,
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TerminationGracePeriodSeconds: &terminationSec,
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RestartPolicy: api.RestartPolicyAlways,
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SecurityContext: &api.PodSecurityContext{},
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},
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},
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},
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}
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}
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func TestGetNewRC(t *testing.T) {
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newDeployment := generateDeployment("nginx")
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newRC := generateRC(newDeployment)
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tests := []struct {
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test string
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rcList api.ReplicationControllerList
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expected *api.ReplicationController
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}{
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{
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"No new RC",
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api.ReplicationControllerList{
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Items: []api.ReplicationController{
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generateRC(generateDeployment("foo")),
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generateRC(generateDeployment("bar")),
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},
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},
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nil,
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},
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{
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"Has new RC",
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api.ReplicationControllerList{
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Items: []api.ReplicationController{
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generateRC(generateDeployment("foo")),
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generateRC(generateDeployment("bar")),
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generateRC(generateDeployment("abc")),
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newRC,
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generateRC(generateDeployment("xyz")),
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},
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},
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&newRC,
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},
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}
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ns := api.NamespaceDefault
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for _, test := range tests {
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c := &simple.Client{
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Request: simple.Request{
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Method: "GET",
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Path: testapi.Default.ResourcePath("replicationControllers", ns, ""),
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},
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Response: simple.Response{
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StatusCode: 200,
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Body: &test.rcList,
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},
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}
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rc, err := GetNewRC(newDeployment, c.Setup(t).Clientset)
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if err != nil {
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t.Errorf("In test case %s, got unexpected error %v", test.test, err)
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}
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if !api.Semantic.DeepEqual(rc, test.expected) {
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t.Errorf("In test case %s, expected %+v, got %+v", test.test, test.expected, rc)
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}
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}
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}
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func TestGetOldRCs(t *testing.T) {
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newDeployment := generateDeployment("nginx")
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newRC := generateRC(newDeployment)
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newPod := generatePodFromRC(newRC)
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// create 2 old deployments and related rcs/pods, with the same labels but different template
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oldDeployment := generateDeployment("nginx")
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oldDeployment.Spec.Template.Spec.Containers[0].Name = "nginx-old-1"
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oldRC := generateRC(oldDeployment)
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oldPod := generatePodFromRC(oldRC)
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oldDeployment2 := generateDeployment("nginx")
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oldDeployment2.Spec.Template.Spec.Containers[0].Name = "nginx-old-2"
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oldRC2 := generateRC(oldDeployment2)
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oldPod2 := generatePodFromRC(oldRC2)
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// create 1 rc that existed before the deployment, with the same labels as the deployment
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existedPod := generatePod(newDeployment.Spec.Selector, "foo")
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existedRC := generateRCWithLabel(newDeployment.Spec.Selector, "foo")
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tests := []struct {
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test string
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objs []runtime.Object
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expected []*api.ReplicationController
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}{
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{
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"No old RCs",
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[]runtime.Object{
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&api.PodList{
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Items: []api.Pod{
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generatePod(newDeployment.Spec.Selector, "foo"),
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generatePod(newDeployment.Spec.Selector, "bar"),
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newPod,
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},
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},
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&api.ReplicationControllerList{
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Items: []api.ReplicationController{
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generateRC(generateDeployment("foo")),
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newRC,
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generateRC(generateDeployment("bar")),
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},
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},
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},
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[]*api.ReplicationController{},
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},
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{
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"Has old RC",
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[]runtime.Object{
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&api.PodList{
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Items: []api.Pod{
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oldPod,
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oldPod2,
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generatePod(map[string]string{"name": "bar"}, "bar"),
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generatePod(map[string]string{"name": "xyz"}, "xyz"),
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existedPod,
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generatePod(newDeployment.Spec.Selector, "abc"),
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},
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},
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&api.ReplicationControllerList{
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Items: []api.ReplicationController{
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oldRC2,
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oldRC,
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existedRC,
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newRC,
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generateRCWithLabel(map[string]string{"name": "xyz"}, "xyz"),
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generateRCWithLabel(map[string]string{"name": "bar"}, "bar"),
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},
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},
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},
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[]*api.ReplicationController{&oldRC, &oldRC2, &existedRC},
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},
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}
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for _, test := range tests {
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rcs, _, err := GetOldRCs(newDeployment, fake.NewSimpleClientset(test.objs...))
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if err != nil {
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t.Errorf("In test case %s, got unexpected error %v", test.test, err)
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}
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if !equal(rcs, test.expected) {
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t.Errorf("In test case %q, expected %v, got %v", test.test, test.expected, rcs)
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}
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}
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}
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// equal compares the equality of two rc slices regardless of their ordering
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func equal(rcs1, rcs2 []*api.ReplicationController) bool {
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if reflect.DeepEqual(rcs1, rcs2) {
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return true
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}
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if rcs1 == nil || rcs2 == nil || len(rcs1) != len(rcs2) {
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return false
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}
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count := 0
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for _, rc1 := range rcs1 {
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for _, rc2 := range rcs2 {
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if reflect.DeepEqual(rc1, rc2) {
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count++
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break
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}
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}
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}
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return count == len(rcs1)
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}
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