a5d441f71e
After hpa controller determines the replica nums needed per cluster, it also controls the distribution of target objs (rs or deployment) into the correct clusters by telling the corresponding controllers, which clusters they should put the objects into (passed as list of selected clusters in annotations).
116 lines
2.9 KiB
Go
116 lines
2.9 KiB
Go
/*
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Copyright 2017 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 hpa
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import (
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"testing"
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autoscalingv1 "k8s.io/api/autoscaling/v1"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"github.com/stretchr/testify/require"
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)
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func TestGetHpaTargetClusterList(t *testing.T) {
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// Any object is fine for this test.
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obj := &autoscalingv1.HorizontalPodAutoscaler{
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ObjectMeta: metav1.ObjectMeta{
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Name: "myhpa",
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Namespace: "myNamespace",
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SelfLink: "/api/mylink",
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},
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}
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testCases := map[string]struct {
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clusterNames *ClusterNames
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expectedErr bool
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}{
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"Wrong data set on annotations should return unmarshalling error when retrieving": {
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expectedErr: true,
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},
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"Get clusternames on annotations with 2 clusters, should have same names, which were set": {
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clusterNames: &ClusterNames{
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Names: []string{
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"c1",
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"c2",
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},
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},
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},
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}
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for testName, testCase := range testCases {
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t.Run(testName, func(t *testing.T) {
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accessor, _ := meta.Accessor(obj)
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anno := accessor.GetAnnotations()
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if anno == nil {
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anno = make(map[string]string)
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accessor.SetAnnotations(anno)
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}
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if testCase.expectedErr {
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anno[FederatedAnnotationOnHpaTargetObj] = "{" //some random string
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} else {
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anno[FederatedAnnotationOnHpaTargetObj] = testCase.clusterNames.String()
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}
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readNames, err := GetHpaTargetClusterList(obj)
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if testCase.expectedErr {
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require.Error(t, err, "An error was expected")
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} else {
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require.Equal(t, testCase.clusterNames, readNames, "Names should have been equal")
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}
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})
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}
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}
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func TestSetHpaTargetClusterList(t *testing.T) {
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// Any object is fine for this test.
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obj := &autoscalingv1.HorizontalPodAutoscaler{
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ObjectMeta: metav1.ObjectMeta{
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Name: "myhpa",
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Namespace: "myNamespace",
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SelfLink: "/api/mylink",
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},
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}
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testCases := map[string]struct {
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clusterNames ClusterNames
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expectedErr bool
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}{
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"Get clusternames on annotations with 2 clusters, should have same names, which were set": {
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clusterNames: ClusterNames{
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Names: []string{
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"c1",
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"c2",
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},
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},
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},
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}
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for testName, testCase := range testCases {
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t.Run(testName, func(t *testing.T) {
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SetHpaTargetClusterList(obj, testCase.clusterNames)
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readNames, err := GetHpaTargetClusterList(obj)
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require.NoError(t, err, "An error should not have happened")
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require.Equal(t, &testCase.clusterNames, readNames, "Names should have been equal")
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})
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}
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}
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