mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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379 lines
11 KiB
Go
379 lines
11 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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 cronjob
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import (
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"reflect"
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"sort"
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"strings"
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"testing"
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"time"
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cron "github.com/robfig/cron/v3"
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batchv1 "k8s.io/api/batch/v1"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/tools/record"
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)
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func TestGetJobFromTemplate2(t *testing.T) {
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// getJobFromTemplate2() needs to take the job template and copy the labels and annotations
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// and other fields, and add a created-by reference.
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var one int64 = 1
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var no bool
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cj := batchv1.CronJob{
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ObjectMeta: metav1.ObjectMeta{
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Name: "mycronjob",
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Namespace: "snazzycats",
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UID: types.UID("1a2b3c"),
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},
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Spec: batchv1.CronJobSpec{
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Schedule: "* * * * ?",
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ConcurrencyPolicy: batchv1.AllowConcurrent,
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JobTemplate: batchv1.JobTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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Annotations: map[string]string{"x": "y"},
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},
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Spec: batchv1.JobSpec{
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ActiveDeadlineSeconds: &one,
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ManualSelector: &no,
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Template: v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{
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"foo": "bar",
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},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{Image: "foo/bar"},
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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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var job *batchv1.Job
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job, err := getJobFromTemplate2(&cj, time.Time{})
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if err != nil {
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t.Errorf("Did not expect error: %s", err)
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}
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if !strings.HasPrefix(job.ObjectMeta.Name, "mycronjob-") {
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t.Errorf("Wrong Name")
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}
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if len(job.ObjectMeta.Labels) != 1 {
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t.Errorf("Wrong number of labels")
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}
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if len(job.ObjectMeta.Annotations) != 1 {
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t.Errorf("Wrong number of annotations")
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}
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}
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func TestGetNextScheduleTime(t *testing.T) {
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// schedule is hourly on the hour
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schedule := "0 * * * ?"
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PraseSchedule := func(schedule string) cron.Schedule {
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sched, err := cron.ParseStandard(schedule)
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if err != nil {
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t.Errorf("Error parsing schedule: %#v", err)
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return nil
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}
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return sched
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}
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recorder := record.NewFakeRecorder(50)
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// T1 is a scheduled start time of that schedule
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T1, err := time.Parse(time.RFC3339, "2016-05-19T10:00:00Z")
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if err != nil {
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t.Errorf("test setup error: %v", err)
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}
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// T2 is a scheduled start time of that schedule after T1
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T2, err := time.Parse(time.RFC3339, "2016-05-19T11:00:00Z")
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if err != nil {
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t.Errorf("test setup error: %v", err)
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}
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cj := batchv1.CronJob{
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ObjectMeta: metav1.ObjectMeta{
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Name: "mycronjob",
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Namespace: metav1.NamespaceDefault,
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UID: types.UID("1a2b3c"),
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},
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Spec: batchv1.CronJobSpec{
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Schedule: schedule,
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ConcurrencyPolicy: batchv1.AllowConcurrent,
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JobTemplate: batchv1.JobTemplateSpec{},
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},
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}
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{
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// Case 1: no known start times, and none needed yet.
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// Creation time is before T1.
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cj.ObjectMeta.CreationTimestamp = metav1.Time{Time: T1.Add(-10 * time.Minute)}
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// Current time is more than creation time, but less than T1.
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now := T1.Add(-7 * time.Minute)
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schedule, _ := getNextScheduleTime(cj, now, PraseSchedule(cj.Spec.Schedule), recorder)
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if schedule != nil {
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t.Errorf("expected no start time, got: %v", schedule)
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}
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}
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{
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// Case 2: no known start times, and one needed.
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// Creation time is before T1.
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cj.ObjectMeta.CreationTimestamp = metav1.Time{Time: T1.Add(-10 * time.Minute)}
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// Current time is after T1
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now := T1.Add(2 * time.Second)
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schedule, _ := getNextScheduleTime(cj, now, PraseSchedule(cj.Spec.Schedule), recorder)
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if schedule == nil {
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t.Errorf("expected 1 start time, got nil")
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} else if !schedule.Equal(T1) {
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t.Errorf("expected: %v, got: %v", T1, schedule)
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}
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}
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{
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// Case 3: known LastScheduleTime, no start needed.
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// Creation time is before T1.
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cj.ObjectMeta.CreationTimestamp = metav1.Time{Time: T1.Add(-10 * time.Minute)}
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// Status shows a start at the expected time.
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cj.Status.LastScheduleTime = &metav1.Time{Time: T1}
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// Current time is after T1
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now := T1.Add(2 * time.Minute)
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schedule, _ := getNextScheduleTime(cj, now, PraseSchedule(cj.Spec.Schedule), recorder)
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if schedule != nil {
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t.Errorf("expected 0 start times, got: %v", schedule)
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}
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}
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{
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// Case 4: known LastScheduleTime, a start needed
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// Creation time is before T1.
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cj.ObjectMeta.CreationTimestamp = metav1.Time{Time: T1.Add(-10 * time.Minute)}
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// Status shows a start at the expected time.
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cj.Status.LastScheduleTime = &metav1.Time{Time: T1}
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// Current time is after T1 and after T2
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now := T2.Add(5 * time.Minute)
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schedule, _ := getNextScheduleTime(cj, now, PraseSchedule(cj.Spec.Schedule), recorder)
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if schedule == nil {
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t.Errorf("expected 1 start times, got nil")
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} else if !schedule.Equal(T2) {
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t.Errorf("expected: %v, got: %v", T2, schedule)
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}
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}
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{
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// Case 5: known LastScheduleTime, two starts needed
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cj.ObjectMeta.CreationTimestamp = metav1.Time{Time: T1.Add(-2 * time.Hour)}
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cj.Status.LastScheduleTime = &metav1.Time{Time: T1.Add(-1 * time.Hour)}
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// Current time is after T1 and after T2
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now := T2.Add(5 * time.Minute)
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schedule, _ := getNextScheduleTime(cj, now, PraseSchedule(cj.Spec.Schedule), recorder)
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if schedule == nil {
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t.Errorf("expected 1 start times, got nil")
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} else if !schedule.Equal(T2) {
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t.Errorf("expected: %v, got: %v", T2, schedule)
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}
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}
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{
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// Case 6: now is way way ahead of last start time, and there is no deadline.
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cj.ObjectMeta.CreationTimestamp = metav1.Time{Time: T1.Add(-2 * time.Hour)}
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cj.Status.LastScheduleTime = &metav1.Time{Time: T1.Add(-1 * time.Hour)}
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now := T2.Add(10 * 24 * time.Hour)
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schedule, _ := getNextScheduleTime(cj, now, PraseSchedule(cj.Spec.Schedule), recorder)
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if schedule == nil {
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t.Errorf("expected more than 0 missed times")
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}
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}
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{
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// Case 7: now is way way ahead of last start time, but there is a short deadline.
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cj.ObjectMeta.CreationTimestamp = metav1.Time{Time: T1.Add(-2 * time.Hour)}
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cj.Status.LastScheduleTime = &metav1.Time{Time: T1.Add(-1 * time.Hour)}
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now := T2.Add(10 * 24 * time.Hour)
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// Deadline is short
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deadline := int64(2 * 60 * 60)
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cj.Spec.StartingDeadlineSeconds = &deadline
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schedule, _ := getNextScheduleTime(cj, now, PraseSchedule(cj.Spec.Schedule), recorder)
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if schedule == nil {
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t.Errorf("expected more than 0 missed times")
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}
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}
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}
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func TestByJobStartTime(t *testing.T) {
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now := metav1.NewTime(time.Date(2018, time.January, 1, 2, 3, 4, 5, time.UTC))
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later := metav1.NewTime(time.Date(2019, time.January, 1, 2, 3, 4, 5, time.UTC))
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aNil := batchv1.Job{
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ObjectMeta: metav1.ObjectMeta{Name: "a"},
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Status: batchv1.JobStatus{},
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}
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bNil := batchv1.Job{
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ObjectMeta: metav1.ObjectMeta{Name: "b"},
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Status: batchv1.JobStatus{},
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}
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aSet := batchv1.Job{
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ObjectMeta: metav1.ObjectMeta{Name: "a"},
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Status: batchv1.JobStatus{StartTime: &now},
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}
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bSet := batchv1.Job{
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ObjectMeta: metav1.ObjectMeta{Name: "b"},
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Status: batchv1.JobStatus{StartTime: &now},
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}
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aSetLater := batchv1.Job{
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ObjectMeta: metav1.ObjectMeta{Name: "a"},
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Status: batchv1.JobStatus{StartTime: &later},
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}
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testCases := []struct {
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name string
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input, expected []batchv1.Job
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}{
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{
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name: "both have nil start times",
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input: []batchv1.Job{bNil, aNil},
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expected: []batchv1.Job{aNil, bNil},
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},
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{
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name: "only the first has a nil start time",
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input: []batchv1.Job{aNil, bSet},
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expected: []batchv1.Job{bSet, aNil},
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},
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{
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name: "only the second has a nil start time",
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input: []batchv1.Job{aSet, bNil},
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expected: []batchv1.Job{aSet, bNil},
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},
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{
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name: "both have non-nil, equal start time",
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input: []batchv1.Job{bSet, aSet},
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expected: []batchv1.Job{aSet, bSet},
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},
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{
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name: "both have non-nil, different start time",
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input: []batchv1.Job{aSetLater, bSet},
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expected: []batchv1.Job{bSet, aSetLater},
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},
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}
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for _, testCase := range testCases {
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sort.Sort(byJobStartTime(testCase.input))
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if !reflect.DeepEqual(testCase.input, testCase.expected) {
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t.Errorf("case: '%s', jobs not sorted as expected", testCase.name)
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}
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}
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}
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func TestGetMostRecentScheduleTime(t *testing.T) {
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type args struct {
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earliestTime *time.Time
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now time.Time
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schedule string
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}
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tests := []struct {
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name string
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args args
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expectedTime *time.Time
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expectedNumberOfMisses int64
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wantErr bool
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}{
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{
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name: "now before next schedule",
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args: args{
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earliestTime: topOfTheHour(),
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now: topOfTheHour().Add(time.Second * 30),
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schedule: "0 * * * *",
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},
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expectedTime: nil,
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},
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{
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name: "now just after next schedule",
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args: args{
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earliestTime: topOfTheHour(),
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now: topOfTheHour().Add(time.Minute * 61),
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schedule: "0 * * * *",
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},
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expectedTime: deltaTimeAfterTopOfTheHour(time.Minute * 60),
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expectedNumberOfMisses: 1,
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},
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{
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name: "missed 5 schedules",
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args: args{
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earliestTime: deltaTimeAfterTopOfTheHour(time.Second * 10),
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now: *deltaTimeAfterTopOfTheHour(time.Minute * 301),
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schedule: "0 * * * *",
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},
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expectedTime: deltaTimeAfterTopOfTheHour(time.Minute * 300),
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expectedNumberOfMisses: 5,
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},
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{
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name: "rogue cronjob",
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args: args{
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earliestTime: deltaTimeAfterTopOfTheHour(time.Second * 10),
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now: *deltaTimeAfterTopOfTheHour(time.Hour * 1000000),
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schedule: "59 23 31 2 *",
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},
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expectedTime: nil,
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expectedNumberOfMisses: 0,
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wantErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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sched, err := cron.ParseStandard(tt.args.schedule)
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if err != nil {
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t.Errorf("error setting up the test, %s", err)
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}
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gotTime, gotNumberOfMisses, err := getMostRecentScheduleTime(*tt.args.earliestTime, tt.args.now, sched)
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if tt.wantErr {
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if err == nil {
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t.Error("getMostRecentScheduleTime() got no error when expected one")
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}
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return
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}
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if !tt.wantErr && err != nil {
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t.Error("getMostRecentScheduleTime() got error when none expected")
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}
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if gotTime == nil && tt.expectedTime != nil {
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t.Errorf("getMostRecentScheduleTime() got nil, want %v", tt.expectedTime)
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}
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if gotTime != nil && tt.expectedTime != nil && !gotTime.Equal(*tt.expectedTime) {
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t.Errorf("getMostRecentScheduleTime() got = %v, want %v", gotTime, tt.expectedTime)
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}
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if gotNumberOfMisses != tt.expectedNumberOfMisses {
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t.Errorf("getMostRecentScheduleTime() got1 = %v, want %v", gotNumberOfMisses, tt.expectedNumberOfMisses)
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}
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})
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}
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}
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func topOfTheHour() *time.Time {
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T1, err := time.Parse(time.RFC3339, "2016-05-19T10:00:00Z")
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if err != nil {
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panic("test setup error")
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}
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return &T1
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}
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func deltaTimeAfterTopOfTheHour(duration time.Duration) *time.Time {
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T1, err := time.Parse(time.RFC3339, "2016-05-19T10:00:00Z")
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if err != nil {
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panic("test setup error")
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}
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t := T1.Add(duration)
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return &t
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}
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