mirror of
https://github.com/k3s-io/kubernetes.git
synced 2026-07-22 09:40:07 +00:00
308 lines
9.7 KiB
Go
308 lines
9.7 KiB
Go
/*
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Copyright 2020 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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"reflect"
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"testing"
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"github.com/stretchr/testify/assert"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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)
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func TestGetNodenameForKernel(t *testing.T) {
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testcases := []struct {
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description string
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hostname string
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hostDomain string
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setHostnameAsFQDN bool
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expectedHostname string
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expectError bool
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}{{
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description: "no hostDomain, setHostnameAsFQDN false",
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hostname: "test.pod.hostname",
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hostDomain: "",
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setHostnameAsFQDN: false,
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expectedHostname: "test.pod.hostname",
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expectError: false,
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}, {
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description: "no hostDomain, setHostnameAsFQDN true",
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hostname: "test.pod.hostname",
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hostDomain: "",
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setHostnameAsFQDN: true,
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expectedHostname: "test.pod.hostname",
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expectError: false,
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}, {
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description: "valid hostDomain, setHostnameAsFQDN false",
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hostname: "test.pod.hostname",
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hostDomain: "svc.subdomain.local",
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setHostnameAsFQDN: false,
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expectedHostname: "test.pod.hostname",
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expectError: false,
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}, {
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description: "valid hostDomain, setHostnameAsFQDN true",
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hostname: "test.pod.hostname",
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hostDomain: "svc.subdomain.local",
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setHostnameAsFQDN: true,
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expectedHostname: "test.pod.hostname.svc.subdomain.local",
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expectError: false,
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}, {
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description: "FQDN is too long, setHostnameAsFQDN false",
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hostname: "1234567.1234567", //8*2-1=15 chars
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hostDomain: "1234567.1234567.1234567.1234567.1234567.1234567.1234567", //8*7-1=55 chars
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setHostnameAsFQDN: false, //FQDN=15 + 1(dot) + 55 = 71 chars
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expectedHostname: "1234567.1234567",
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expectError: false,
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}, {
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description: "FQDN is too long, setHostnameAsFQDN true",
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hostname: "1234567.1234567", //8*2-1=15 chars
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hostDomain: "1234567.1234567.1234567.1234567.1234567.1234567.1234567", //8*7-1=55 chars
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setHostnameAsFQDN: true, //FQDN=15 + 1(dot) + 55 = 71 chars
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expectedHostname: "",
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expectError: true,
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}}
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for _, tc := range testcases {
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t.Logf("TestCase: %q", tc.description)
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outputHostname, err := GetNodenameForKernel(tc.hostname, tc.hostDomain, &tc.setHostnameAsFQDN)
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if tc.expectError {
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assert.Error(t, err)
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} else {
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assert.NoError(t, err)
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}
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assert.Equal(t, tc.expectedHostname, outputHostname)
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}
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}
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func TestGetContainerByIndex(t *testing.T) {
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testCases := []struct {
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title string
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containers []v1.Container
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statuses []v1.ContainerStatus
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idx int
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expectedContainer v1.Container
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expectedOK bool
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}{
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{
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title: "idx is less than zero",
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containers: []v1.Container{{Name: "container-1"}},
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statuses: []v1.ContainerStatus{{Name: "container-1"}},
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idx: -1,
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expectedContainer: v1.Container{},
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expectedOK: false,
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}, {
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title: "idx is large then number of containers",
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containers: []v1.Container{{Name: "container-1"}},
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statuses: []v1.ContainerStatus{{Name: "container-1"}},
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idx: 2,
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expectedContainer: v1.Container{},
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expectedOK: false,
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}, {
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title: "idx is large then number of statuses",
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containers: []v1.Container{{Name: "container-1"}, {Name: "container-2"}},
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statuses: []v1.ContainerStatus{{Name: "container-1"}},
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idx: 2,
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expectedContainer: v1.Container{},
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expectedOK: false,
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}, {
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title: "names do not match",
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containers: []v1.Container{{Name: "container-1"}},
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statuses: []v1.ContainerStatus{{Name: "invalid-container"}},
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idx: 0,
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expectedContainer: v1.Container{},
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expectedOK: false,
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}, {
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title: "valid container index",
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containers: []v1.Container{{Name: "container-1"}, {Name: "container-2"}},
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statuses: []v1.ContainerStatus{{Name: "container-1"}, {Name: "container-2"}},
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idx: 1,
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expectedContainer: v1.Container{Name: "container-2"},
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expectedOK: true,
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},
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}
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for _, tc := range testCases {
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container, ok := GetContainerByIndex(tc.containers, tc.statuses, tc.idx)
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if container.Name != tc.expectedContainer.Name || ok != tc.expectedOK {
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t.Errorf("%s - Expected container: %v, got container: %v, expected ok: %v, got ok: %v", tc.title, tc.expectedContainer, container, tc.expectedOK, ok)
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}
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}
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}
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func TestGetLimits(t *testing.T) {
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testCases := []struct {
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name string
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containerResources *v1.ResourceRequirements
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podResources *v1.ResourceRequirements
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expectedLimits v1.ResourceList
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}{
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{
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name: "empty resources",
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containerResources: &v1.ResourceRequirements{},
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podResources: &v1.ResourceRequirements{},
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expectedLimits: v1.ResourceList{},
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},
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{
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name: "nil resources",
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containerResources: nil,
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podResources: nil,
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expectedLimits: v1.ResourceList{},
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},
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{
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name: "nil pod-resources",
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containerResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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}},
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podResources: nil,
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expectedLimits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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},
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},
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{
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name: "nil container-resources",
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containerResources: nil,
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podResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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}},
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expectedLimits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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},
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},
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{
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name: "container limits not set",
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containerResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{},
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},
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podResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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},
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},
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expectedLimits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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},
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},
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{
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name: "container cpu limits not set",
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containerResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: resource.MustParse("5Mi"),
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},
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},
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podResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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},
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},
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expectedLimits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("5Mi"),
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},
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},
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{
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name: "container memory limits not set",
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containerResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("50m"),
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},
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},
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podResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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},
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},
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expectedLimits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("50m"),
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v1.ResourceMemory: resource.MustParse("10Mi"),
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},
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},
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{
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name: "container and pod memory limits not set",
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containerResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("50m"),
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},
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},
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podResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("100m"),
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},
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},
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expectedLimits: v1.ResourceList{
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v1.ResourceCPU: resource.MustParse("50m"),
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},
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},
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{
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name: "container and pod cpu limits not set",
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containerResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: resource.MustParse("5Mi"),
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},
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},
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podResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: resource.MustParse("10Mi"),
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},
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},
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expectedLimits: v1.ResourceList{
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v1.ResourceMemory: resource.MustParse("5Mi"),
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},
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},
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{
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name: "container and pod cpu memory limits set",
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containerResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: resource.MustParse("5Mi"),
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v1.ResourceCPU: resource.MustParse("50m"),
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},
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},
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podResources: &v1.ResourceRequirements{
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Limits: v1.ResourceList{
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v1.ResourceMemory: resource.MustParse("10Mi"),
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v1.ResourceCPU: resource.MustParse("60m"),
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},
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},
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expectedLimits: v1.ResourceList{
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v1.ResourceMemory: resource.MustParse("5Mi"),
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v1.ResourceCPU: resource.MustParse("50m"),
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},
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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gotLimits := GetLimits(&ResourceOpts{PodResources: tc.podResources, ContainerResources: tc.containerResources})
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if !reflect.DeepEqual(tc.expectedLimits, gotLimits) {
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t.Errorf("got limits: %v, expected limits: %v", gotLimits, tc.expectedLimits)
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}
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})
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}
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}
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