mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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102 lines
3.0 KiB
Go
102 lines
3.0 KiB
Go
/*
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Copyright 2019 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 nodevolumelimits
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import (
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"context"
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"reflect"
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"testing"
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v1 "k8s.io/api/core/v1"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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featuregatetesting "k8s.io/component-base/featuregate/testing"
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"k8s.io/kubernetes/pkg/features"
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"k8s.io/kubernetes/pkg/scheduler/algorithm/predicates"
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framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
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)
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func TestCinderLimits(t *testing.T) {
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twoVolCinderPod := &v1.Pod{
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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VolumeSource: v1.VolumeSource{
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Cinder: &v1.CinderVolumeSource{VolumeID: "tvp1"},
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},
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},
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{
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VolumeSource: v1.VolumeSource{
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Cinder: &v1.CinderVolumeSource{VolumeID: "tvp2"},
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},
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},
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},
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},
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}
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oneVolCinderPod := &v1.Pod{
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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VolumeSource: v1.VolumeSource{
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Cinder: &v1.CinderVolumeSource{VolumeID: "ovp"},
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},
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},
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},
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},
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}
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tests := []struct {
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newPod *v1.Pod
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existingPods []*v1.Pod
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filterName string
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driverName string
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maxVols int
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test string
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wantStatus *framework.Status
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}{
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{
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newPod: oneVolCinderPod,
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existingPods: []*v1.Pod{twoVolCinderPod},
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filterName: predicates.CinderVolumeFilterType,
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maxVols: 4,
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test: "fits when node capacity >= new pod's Cinder volumes",
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},
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{
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newPod: oneVolCinderPod,
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existingPods: []*v1.Pod{twoVolCinderPod},
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filterName: predicates.CinderVolumeFilterType,
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maxVols: 2,
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test: "not fit when node capacity < new pod's Cinder volumes",
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wantStatus: framework.NewStatus(framework.Unschedulable, predicates.ErrMaxVolumeCountExceeded.GetReason()),
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},
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}
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.AttachVolumeLimit, true)()
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for _, test := range tests {
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t.Run(test.test, func(t *testing.T) {
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node, csiNode := getNodeWithPodAndVolumeLimits("node", test.existingPods, int64(test.maxVols), test.filterName)
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p := &CinderLimits{
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predicate: predicates.NewMaxPDVolumeCountPredicate(test.filterName, getFakeCSINodeLister(csiNode), getFakeCSIStorageClassLister(test.filterName, test.driverName), getFakePVLister(test.filterName), getFakePVCLister(test.filterName)),
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}
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gotStatus := p.Filter(context.Background(), nil, test.newPod, node)
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if !reflect.DeepEqual(gotStatus, test.wantStatus) {
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t.Errorf("status does not match: %v, want: %v", gotStatus, test.wantStatus)
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}
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})
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}
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}
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