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Set Job's labels from PodTemplateSpec if none are specified

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This commit is contained in:
Maciej Szulik
2016-09-06 14:12:52 +02:00
parent 2fe1fcdab8
commit 43612afaae
7 changed files with 536 additions and 39 deletions
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222
pkg/apis/batch/v1/defaults_test.go Normal file
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@@ -0,0 +1,222 @@
/*
Copyright 2016 The Kubernetes Authors.
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 v1_test
import (
"reflect"
"testing"
"k8s.io/kubernetes/pkg/api"
_ "k8s.io/kubernetes/pkg/api/install"
"k8s.io/kubernetes/pkg/api/v1"
_ "k8s.io/kubernetes/pkg/apis/batch/install"
. "k8s.io/kubernetes/pkg/apis/batch/v1"
"k8s.io/kubernetes/pkg/runtime"
)
func TestSetDefaultJob(t *testing.T) {
defaultLabels := map[string]string{"default": "default"}
tests := map[string]struct {
original *Job
expected *Job
expectLabels bool
}{
"both unspecified -> sets both to 1": {
original: &Job{
Spec: JobSpec{
Template: v1.PodTemplateSpec{
ObjectMeta: v1.ObjectMeta{Labels: defaultLabels},
},
},
},
expected: &Job{
Spec: JobSpec{
Completions: newInt32(1),
Parallelism: newInt32(1),
},
},
expectLabels: true,
},
"both unspecified -> sets both to 1 and no default labels": {
original: &Job{
ObjectMeta: v1.ObjectMeta{
Labels: map[string]string{"mylabel": "myvalue"},
},
Spec: JobSpec{
Template: v1.PodTemplateSpec{
ObjectMeta: v1.ObjectMeta{Labels: defaultLabels},
},
},
},
expected: &Job{
Spec: JobSpec{
Completions: newInt32(1),
Parallelism: newInt32(1),
},
},
},
"WQ: Parallelism explicitly 0 and completions unset -> no change": {
original: &Job{
Spec: JobSpec{
Parallelism: newInt32(0),
Template: v1.PodTemplateSpec{
ObjectMeta: v1.ObjectMeta{Labels: defaultLabels},
},
},
},
expected: &Job{
Spec: JobSpec{
Parallelism: newInt32(0),
},
},
expectLabels: true,
},
"WQ: Parallelism explicitly 2 and completions unset -> no change": {
original: &Job{
Spec: JobSpec{
Parallelism: newInt32(2),
Template: v1.PodTemplateSpec{
ObjectMeta: v1.ObjectMeta{Labels: defaultLabels},
},
},
},
expected: &Job{
Spec: JobSpec{
Parallelism: newInt32(2),
},
},
expectLabels: true,
},
"Completions explicitly 2 and parallelism unset -> parallelism is defaulted": {
original: &Job{
Spec: JobSpec{
Completions: newInt32(2),
Template: v1.PodTemplateSpec{
ObjectMeta: v1.ObjectMeta{Labels: defaultLabels},
},
},
},
expected: &Job{
Spec: JobSpec{
Completions: newInt32(2),
Parallelism: newInt32(1),
},
},
expectLabels: true,
},
"Both set -> no change": {
original: &Job{
Spec: JobSpec{
Completions: newInt32(10),
Parallelism: newInt32(11),
Template: v1.PodTemplateSpec{
ObjectMeta: v1.ObjectMeta{Labels: defaultLabels},
},
},
},
expected: &Job{
Spec: JobSpec{
Completions: newInt32(10),
Parallelism: newInt32(11),
Template: v1.PodTemplateSpec{
ObjectMeta: v1.ObjectMeta{Labels: defaultLabels},
},
},
},
expectLabels: true,
},
"Both set, flipped -> no change": {
original: &Job{
Spec: JobSpec{
Completions: newInt32(11),
Parallelism: newInt32(10),
Template: v1.PodTemplateSpec{
ObjectMeta: v1.ObjectMeta{Labels: defaultLabels},
},
},
},
expected: &Job{
Spec: JobSpec{
Completions: newInt32(11),
Parallelism: newInt32(10),
},
},
expectLabels: true,
},
}
for name, test := range tests {
original := test.original
expected := test.expected
obj2 := roundTrip(t, runtime.Object(original))
actual, ok := obj2.(*Job)
if !ok {
t.Errorf("%s: unexpected object: %v", name, actual)
t.FailNow()
}
if (actual.Spec.Completions == nil) != (expected.Spec.Completions == nil) {
t.Errorf("%s: got different *completions than expected: %v %v", name, actual.Spec.Completions, expected.Spec.Completions)
}
if actual.Spec.Completions != nil && expected.Spec.Completions != nil {
if *actual.Spec.Completions != *expected.Spec.Completions {
t.Errorf("%s: got different completions than expected: %d %d", name, *actual.Spec.Completions, *expected.Spec.Completions)
}
}
if (actual.Spec.Parallelism == nil) != (expected.Spec.Parallelism == nil) {
t.Errorf("%s: got different *Parallelism than expected: %v %v", name, actual.Spec.Parallelism, expected.Spec.Parallelism)
}
if actual.Spec.Parallelism != nil && expected.Spec.Parallelism != nil {
if *actual.Spec.Parallelism != *expected.Spec.Parallelism {
t.Errorf("%s: got different parallelism than expected: %d %d", name, *actual.Spec.Parallelism, *expected.Spec.Parallelism)
}
}
if test.expectLabels != reflect.DeepEqual(actual.Labels, actual.Spec.Template.Labels) {
if test.expectLabels {
t.Errorf("%s: expected: %v, got: %v", name, actual.Spec.Template.Labels, actual.Labels)
} else {
t.Errorf("%s: unexpected equality: %v", name, actual.Labels)
}
}
}
}
func roundTrip(t *testing.T, obj runtime.Object) runtime.Object {
data, err := runtime.Encode(api.Codecs.LegacyCodec(SchemeGroupVersion), obj)
if err != nil {
t.Errorf("%v\n %#v", err, obj)
return nil
}
obj2, err := runtime.Decode(api.Codecs.UniversalDecoder(), data)
if err != nil {
t.Errorf("%v\nData: %s\nSource: %#v", err, string(data), obj)
return nil
}
obj3 := reflect.New(reflect.TypeOf(obj).Elem()).Interface().(runtime.Object)
err = api.Scheme.Convert(obj2, obj3, nil)
if err != nil {
t.Errorf("%v\nSource: %#v", err, obj2)
return nil
}
return obj3
}
func newInt32(val int32) *int32 {
p := new(int32)
*p = val
return p
}