83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
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/*
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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 deployment
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import (
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"fmt"
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"testing"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/kubernetes/pkg/api"
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extensions "k8s.io/kubernetes/pkg/apis/extensions/v1beta1"
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"k8s.io/kubernetes/pkg/client/clientset_generated/clientset/fake"
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"k8s.io/kubernetes/pkg/controller"
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"k8s.io/kubernetes/pkg/controller/informers"
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)
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func TestScaleDownOldReplicaSets(t *testing.T) {
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tests := []struct {
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oldRSSizes []int
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d *extensions.Deployment
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}{
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{
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oldRSSizes: []int{3},
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d: newDeployment("foo", 3, nil, nil, nil, map[string]string{"foo": "bar"}),
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},
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}
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for i := range tests {
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t.Logf("running scenario %d", i)
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test := tests[i]
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var oldRSs []*extensions.ReplicaSet
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var expected []runtime.Object
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for n, size := range test.oldRSSizes {
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rs := newReplicaSet(test.d, fmt.Sprintf("%s-%d", test.d.Name, n), size)
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oldRSs = append(oldRSs, rs)
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objCopy, err := api.Scheme.Copy(rs)
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if err != nil {
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t.Errorf("unexpected error while deep-copying: %v", err)
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continue
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}
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rsCopy := objCopy.(*extensions.ReplicaSet)
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zero := int32(0)
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rsCopy.Spec.Replicas = &zero
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expected = append(expected, rsCopy)
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if *(oldRSs[n].Spec.Replicas) == *(expected[n].(*extensions.ReplicaSet).Spec.Replicas) {
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t.Errorf("broken test - original and expected RS have the same size")
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}
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}
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kc := fake.NewSimpleClientset(expected...)
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informers := informers.NewSharedInformerFactory(kc, nil, controller.NoResyncPeriodFunc())
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c := NewDeploymentController(informers.Deployments(), informers.ReplicaSets(), informers.Pods(), kc)
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c.scaleDownOldReplicaSetsForRecreate(oldRSs, test.d)
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for j := range oldRSs {
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rs := oldRSs[j]
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if *rs.Spec.Replicas != 0 {
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t.Errorf("rs %q has non-zero replicas", rs.Name)
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}
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}
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}
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}
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