2651c72166
* This patch consists of various corrections. *) Remove unwanted `else` code block *) Adjust variable intialization. *) Correct error strings. *) Use recommended variable increment method. Signed-off-by: hchiramm <hchiramm@redhat.com> * Remove cluster/images/cluster-version-monitor from hack/.golint_failures. Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
146 lines
4.0 KiB
Go
146 lines
4.0 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 util
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import (
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"encoding/json"
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"hash/adler32"
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"strconv"
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"strings"
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"testing"
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"k8s.io/api/core/v1"
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"k8s.io/kubernetes/pkg/controller"
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hashutil "k8s.io/kubernetes/pkg/util/hash"
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)
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var podSpec string = `
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{
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"metadata": {
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"creationTimestamp": null,
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"labels": {
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"app": "cats"
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}
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},
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"spec": {
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"containers": [
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{
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"name": "cats",
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"image": "registry/test/cats:v0.@@VERSION@@.0",
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"ports": [
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{
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"name": "http",
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"containerPort": 9077,
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"protocol": "TCP"
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}
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],
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"env": [
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{
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"name": "DEPLOYMENT_ENVIRONMENT",
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"value": "cats-stubbed-functional"
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},
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{
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"name": "APP_NAME",
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"value": "cats"
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}
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],
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"resources": {
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"limits": {
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"cpu": "1",
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"memory": "1Gi"
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},
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"requests": {
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"cpu": "1",
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"memory": "1Gi"
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}
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},
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"livenessProbe": {
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"httpGet": {
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"path": "/private/status",
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"port": 9077,
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"scheme": "HTTP"
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},
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"initialDelaySeconds": 30,
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"timeoutSeconds": 1,
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"periodSeconds": 10,
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"successThreshold": 1,
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"failureThreshold": 3
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},
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"readinessProbe": {
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"httpGet": {
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"path": "/private/status",
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"port": 9077,
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"scheme": "HTTP"
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},
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"initialDelaySeconds": 1,
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"timeoutSeconds": 1,
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"periodSeconds": 10,
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"successThreshold": 1,
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"failureThreshold": 3
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},
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"terminationMessagePath": "/dev/termination-log",
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"imagePullPolicy": "IfNotPresent"
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}
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],
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"restartPolicy": "Always",
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"terminationGracePeriodSeconds": 30,
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"dnsPolicy": "ClusterFirst",
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"securityContext": {}
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}
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}
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`
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func TestPodTemplateSpecHash(t *testing.T) {
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seenHashes := make(map[string]int)
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for i := 0; i < 1000; i++ {
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specJSON := strings.Replace(podSpec, "@@VERSION@@", strconv.Itoa(i), 1)
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spec := v1.PodTemplateSpec{}
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json.Unmarshal([]byte(specJSON), &spec)
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hash := controller.ComputeHash(&spec, nil)
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if v, ok := seenHashes[hash]; ok {
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t.Errorf("Hash collision, old: %d new: %d", v, i)
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break
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}
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seenHashes[hash] = i
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}
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}
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func BenchmarkAdler(b *testing.B) {
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spec := v1.PodTemplateSpec{}
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json.Unmarshal([]byte(podSpec), &spec)
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for i := 0; i < b.N; i++ {
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getPodTemplateSpecOldHash(spec)
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}
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}
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func getPodTemplateSpecOldHash(template v1.PodTemplateSpec) uint32 {
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podTemplateSpecHasher := adler32.New()
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hashutil.DeepHashObject(podTemplateSpecHasher, template)
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return podTemplateSpecHasher.Sum32()
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}
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func BenchmarkFnv(b *testing.B) {
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spec := v1.PodTemplateSpec{}
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json.Unmarshal([]byte(podSpec), &spec)
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for i := 0; i < b.N; i++ {
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controller.ComputeHash(&spec, nil)
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}
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}
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