mirror of https://github.com/k3s-io/k3s
126 lines
3.8 KiB
Go
126 lines
3.8 KiB
Go
// +build linux
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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 cm
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import (
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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/apimachinery/pkg/types"
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)
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func TestIsCgroupPod(t *testing.T) {
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qosContainersInfo := QOSContainersInfo{
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Guaranteed: RootCgroupName,
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Burstable: NewCgroupName(RootCgroupName, strings.ToLower(string(v1.PodQOSBurstable))),
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BestEffort: NewCgroupName(RootCgroupName, strings.ToLower(string(v1.PodQOSBestEffort))),
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}
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podUID := types.UID("123")
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testCases := []struct {
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input CgroupName
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expectedResult bool
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expectedUID types.UID
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}{
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{
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input: RootCgroupName,
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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{
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input: NewCgroupName(qosContainersInfo.Guaranteed),
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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{
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input: NewCgroupName(qosContainersInfo.Guaranteed, GetPodCgroupNameSuffix(podUID)),
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expectedResult: true,
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expectedUID: podUID,
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},
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{
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input: NewCgroupName(qosContainersInfo.Guaranteed, GetPodCgroupNameSuffix(podUID), "container.scope"),
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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{
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input: NewCgroupName(qosContainersInfo.Burstable),
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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{
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input: NewCgroupName(qosContainersInfo.Burstable, GetPodCgroupNameSuffix(podUID)),
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expectedResult: true,
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expectedUID: podUID,
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},
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{
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input: NewCgroupName(qosContainersInfo.Burstable, GetPodCgroupNameSuffix(podUID), "container.scope"),
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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{
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input: NewCgroupName(qosContainersInfo.BestEffort),
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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{
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input: NewCgroupName(qosContainersInfo.BestEffort, GetPodCgroupNameSuffix(podUID)),
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expectedResult: true,
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expectedUID: podUID,
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},
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{
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input: NewCgroupName(qosContainersInfo.BestEffort, GetPodCgroupNameSuffix(podUID), "container.scope"),
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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{
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input: NewCgroupName(RootCgroupName, "system"),
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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{
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input: NewCgroupName(RootCgroupName, "system", "kubelet"),
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expectedResult: false,
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expectedUID: types.UID(""),
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},
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}
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for _, cgroupDriver := range []string{"cgroupfs", "systemd"} {
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pcm := &podContainerManagerImpl{
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cgroupManager: NewCgroupManager(nil, cgroupDriver),
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enforceCPULimits: true,
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qosContainersInfo: qosContainersInfo,
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}
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for _, testCase := range testCases {
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// give the right cgroup structure based on driver
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cgroupfs := testCase.input.ToCgroupfs()
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if cgroupDriver == "systemd" {
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cgroupfs = testCase.input.ToSystemd()
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}
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// check if this is a pod or not with the literal cgroupfs input
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result, resultUID := pcm.IsPodCgroup(cgroupfs)
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if result != testCase.expectedResult {
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t.Errorf("Unexpected result for driver: %v, input: %v, expected: %v, actual: %v", cgroupDriver, testCase.input, testCase.expectedResult, result)
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}
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if resultUID != testCase.expectedUID {
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t.Errorf("Unexpected result for driver: %v, input: %v, expected: %v, actual: %v", cgroupDriver, testCase.input, testCase.expectedUID, resultUID)
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}
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}
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}
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}
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