kubernetes/pkg/apis/apps/validation/validation_test.go
Prashanth Balasubramanian 6bc3052551 PetSet alpha controller
2016-05-04 18:39:17 -07:00

380 lines
11 KiB
Go

/*
Copyright 2016 The Kubernetes Authors All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package validation
import (
"strings"
"testing"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/apis/apps"
)
func TestValidatePetSet(t *testing.T) {
validLabels := map[string]string{"a": "b"}
validPodTemplate := api.PodTemplate{
Template: api.PodTemplateSpec{
ObjectMeta: api.ObjectMeta{
Labels: validLabels,
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyAlways,
DNSPolicy: api.DNSClusterFirst,
Containers: []api.Container{{Name: "abc", Image: "image", ImagePullPolicy: "IfNotPresent"}},
},
},
}
invalidLabels := map[string]string{"NoUppercaseOrSpecialCharsLike=Equals": "b"}
invalidPodTemplate := api.PodTemplate{
Template: api.PodTemplateSpec{
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyAlways,
DNSPolicy: api.DNSClusterFirst,
},
ObjectMeta: api.ObjectMeta{
Labels: invalidLabels,
},
},
}
successCases := []apps.PetSet{
{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
{
ObjectMeta: api.ObjectMeta{Name: "abc-123", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
}
for _, successCase := range successCases {
if errs := ValidatePetSet(&successCase); len(errs) != 0 {
t.Errorf("expected success: %v", errs)
}
}
errorCases := map[string]apps.PetSet{
"zero-length ID": {
ObjectMeta: api.ObjectMeta{Name: "", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
"missing-namespace": {
ObjectMeta: api.ObjectMeta{Name: "abc-123"},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
"empty selector": {
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Template: validPodTemplate.Template,
},
},
"selector_doesnt_match": {
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}},
Template: validPodTemplate.Template,
},
},
"invalid manifest": {
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
},
},
"negative_replicas": {
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Replicas: -1,
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
},
},
"invalid_label": {
ObjectMeta: api.ObjectMeta{
Name: "abc-123",
Namespace: api.NamespaceDefault,
Labels: map[string]string{
"NoUppercaseOrSpecialCharsLike=Equals": "bar",
},
},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
"invalid_label 2": {
ObjectMeta: api.ObjectMeta{
Name: "abc-123",
Namespace: api.NamespaceDefault,
Labels: map[string]string{
"NoUppercaseOrSpecialCharsLike=Equals": "bar",
},
},
Spec: apps.PetSetSpec{
Template: invalidPodTemplate.Template,
},
},
"invalid_annotation": {
ObjectMeta: api.ObjectMeta{
Name: "abc-123",
Namespace: api.NamespaceDefault,
Annotations: map[string]string{
"NoUppercaseOrSpecialCharsLike=Equals": "bar",
},
},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
"invalid restart policy 1": {
ObjectMeta: api.ObjectMeta{
Name: "abc-123",
Namespace: api.NamespaceDefault,
},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: api.PodTemplateSpec{
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyOnFailure,
DNSPolicy: api.DNSClusterFirst,
Containers: []api.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
},
ObjectMeta: api.ObjectMeta{
Labels: validLabels,
},
},
},
},
"invalid restart policy 2": {
ObjectMeta: api.ObjectMeta{
Name: "abc-123",
Namespace: api.NamespaceDefault,
},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: api.PodTemplateSpec{
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyNever,
DNSPolicy: api.DNSClusterFirst,
Containers: []api.Container{{Name: "ctr", Image: "image", ImagePullPolicy: "IfNotPresent"}},
},
ObjectMeta: api.ObjectMeta{
Labels: validLabels,
},
},
},
},
}
for k, v := range errorCases {
errs := ValidatePetSet(&v)
if len(errs) == 0 {
t.Errorf("expected failure for %s", k)
}
for i := range errs {
field := errs[i].Field
if !strings.HasPrefix(field, "spec.template.") &&
field != "metadata.name" &&
field != "metadata.namespace" &&
field != "spec.selector" &&
field != "spec.template" &&
field != "GCEPersistentDisk.ReadOnly" &&
field != "spec.replicas" &&
field != "spec.template.labels" &&
field != "metadata.annotations" &&
field != "metadata.labels" &&
field != "status.replicas" {
t.Errorf("%s: missing prefix for: %v", k, errs[i])
}
}
}
}
func TestValidatePetSetUpdate(t *testing.T) {
validLabels := map[string]string{"a": "b"}
validPodTemplate := api.PodTemplate{
Template: api.PodTemplateSpec{
ObjectMeta: api.ObjectMeta{
Labels: validLabels,
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyAlways,
DNSPolicy: api.DNSClusterFirst,
Containers: []api.Container{{Name: "abc", Image: "image", ImagePullPolicy: "IfNotPresent"}},
},
},
}
readWriteVolumePodTemplate := api.PodTemplate{
Template: api.PodTemplateSpec{
ObjectMeta: api.ObjectMeta{
Labels: validLabels,
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyAlways,
DNSPolicy: api.DNSClusterFirst,
Containers: []api.Container{{Name: "abc", Image: "image", ImagePullPolicy: "IfNotPresent"}},
Volumes: []api.Volume{{Name: "gcepd", VolumeSource: api.VolumeSource{GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{PDName: "my-PD", FSType: "ext4", Partition: 1, ReadOnly: false}}}},
},
},
}
invalidLabels := map[string]string{"NoUppercaseOrSpecialCharsLike=Equals": "b"}
invalidPodTemplate := api.PodTemplate{
Template: api.PodTemplateSpec{
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicyAlways,
DNSPolicy: api.DNSClusterFirst,
},
ObjectMeta: api.ObjectMeta{
Labels: invalidLabels,
},
},
}
type psUpdateTest struct {
old apps.PetSet
update apps.PetSet
}
successCases := []psUpdateTest{
{
old: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
update: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Replicas: 3,
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
},
}
for _, successCase := range successCases {
successCase.old.ObjectMeta.ResourceVersion = "1"
successCase.update.ObjectMeta.ResourceVersion = "1"
if errs := ValidatePetSetUpdate(&successCase.update, &successCase.old); len(errs) != 0 {
t.Errorf("expected success: %v", errs)
}
}
errorCases := map[string]psUpdateTest{
"more than one read/write": {
old: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
update: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Replicas: 2,
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: readWriteVolumePodTemplate.Template,
},
},
},
"updates to a field other than spec.Replicas": {
old: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
update: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Replicas: 1,
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: readWriteVolumePodTemplate.Template,
},
},
},
"invalid selector": {
old: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
update: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Replicas: 2,
Selector: &unversioned.LabelSelector{MatchLabels: invalidLabels},
Template: validPodTemplate.Template,
},
},
},
"invalid pod": {
old: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
update: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Replicas: 2,
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: invalidPodTemplate.Template,
},
},
},
"negative replicas": {
old: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
update: apps.PetSet{
ObjectMeta: api.ObjectMeta{Name: "abc", Namespace: api.NamespaceDefault},
Spec: apps.PetSetSpec{
Replicas: -1,
Selector: &unversioned.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
},
},
},
}
for testName, errorCase := range errorCases {
if errs := ValidatePetSetUpdate(&errorCase.update, &errorCase.old); len(errs) == 0 {
t.Errorf("expected failure: %s", testName)
}
}
}