//go:build linux
// +build linux
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package cm
import (
"path"
"reflect"
"testing"
)
// TestNewCgroupName tests confirms that #68416 is fixed
func TestNewCgroupName(t *testing.T) {
a := ParseCgroupfsToCgroupName("/a/")
ab := NewCgroupName(a, "b")
expectedAB := CgroupName([]string{"a", "", "b"})
if !reflect.DeepEqual(ab, expectedAB) {
t.Errorf("Expected %d%+v; got %d%+v", len(expectedAB), expectedAB, len(ab), ab)
}
abc := NewCgroupName(ab, "c")
expectedABC := CgroupName([]string{"a", "", "b", "c"})
if !reflect.DeepEqual(abc, expectedABC) {
t.Errorf("Expected %d%+v; got %d%+v", len(expectedABC), expectedABC, len(abc), abc)
}
_ = NewCgroupName(ab, "d")
if !reflect.DeepEqual(abc, expectedABC) {
t.Errorf("Expected %d%+v; got %d%+v", len(expectedABC), expectedABC, len(abc), abc)
}
}
func TestCgroupNameToSystemdBasename(t *testing.T) {
testCases := []struct {
input CgroupName
expected string
}{
{
input: RootCgroupName,
expected: "/",
},
{
input: NewCgroupName(RootCgroupName, "system"),
expected: "system.slice",
},
{
input: NewCgroupName(RootCgroupName, "system", "Burstable"),
expected: "system-Burstable.slice",
},
{
input: NewCgroupName(RootCgroupName, "Burstable", "pod-123"),
expected: "Burstable-pod_123.slice",
},
{
input: NewCgroupName(RootCgroupName, "test", "a", "b"),
expected: "test-a-b.slice",
},
{
input: NewCgroupName(RootCgroupName, "test", "a", "b", "Burstable"),
expected: "test-a-b-Burstable.slice",
},
{
input: NewCgroupName(RootCgroupName, "Burstable"),
expected: "Burstable.slice",
},
{
input: NewCgroupName(RootCgroupName, "BestEffort", "pod-6c1a4e95-6bb6-11e6-bc26-28d2444e470d"),
expected: "BestEffort-pod_6c1a4e95_6bb6_11e6_bc26_28d2444e470d.slice",
},
}
for _, testCase := range testCases {
if actual := path.Base(testCase.input.ToSystemd()); actual != testCase.expected {
t.Errorf("Unexpected result, input: %v, expected: %v, actual: %v", testCase.input, testCase.expected, actual)
}
}
}
func TestCgroupNameToSystemd(t *testing.T) {
testCases := []struct {
input CgroupName
expected string
}{
{
input: RootCgroupName,
expected: "/",
},
{
input: NewCgroupName(RootCgroupName, "Burstable"),
expected: "/Burstable.slice",
},
{
input: NewCgroupName(RootCgroupName, "Burstable", "pod-123"),
expected: "/Burstable.slice/Burstable-pod_123.slice",
},
{
input: NewCgroupName(RootCgroupName, "BestEffort", "pod-6c1a4e95-6bb6-11e6-bc26-28d2444e470d"),
expected: "/BestEffort.slice/BestEffort-pod_6c1a4e95_6bb6_11e6_bc26_28d2444e470d.slice",
},
{
input: NewCgroupName(RootCgroupName, "kubepods"),
expected: "/kubepods.slice",
},
}
for _, testCase := range testCases {
if actual := testCase.input.ToSystemd(); actual != testCase.expected {
t.Errorf("Unexpected result, input: %v, expected: %v, actual: %v", testCase.input, testCase.expected, actual)
}
}
}
func TestCgroupNameToCgroupfs(t *testing.T) {
testCases := []struct {
input CgroupName
expected string
}{
{
input: RootCgroupName,
expected: "/",
},
{
input: NewCgroupName(RootCgroupName, "Burstable"),
expected: "/Burstable",
},
}
for _, testCase := range testCases {
if actual := testCase.input.ToCgroupfs(); actual != testCase.expected {
t.Errorf("Unexpected result, input: %v, expected: %v, actual: %v", testCase.input, testCase.expected, actual)
}
}
}
func TestParseSystemdToCgroupName(t *testing.T) {
testCases := []struct {
input string
expected CgroupName
}{
{
input: "/test",
expected: []string{"test"},
},
{
input: "/test.slice",
expected: []string{"test"},
},
}
for _, testCase := range testCases {
if actual := ParseSystemdToCgroupName(testCase.input); !reflect.DeepEqual(actual, testCase.expected) {
t.Errorf("Unexpected result, input: %v, expected: %v, actual: %v", testCase.input, testCase.expected, actual)
}
}
}
func TestCpuSharesToCPUWeight(t *testing.T) {
testCases := []struct {
cpuShares uint64
expectedCpuWeight uint64
}{
{
cpuShares: 2,
expectedCpuWeight: 1,
},
{
cpuShares: 3,
expectedCpuWeight: 1,
},
{
cpuShares: 4,
expectedCpuWeight: 1,
},
{
cpuShares: 28,
expectedCpuWeight: 1,
},
{
cpuShares: 29,
expectedCpuWeight: 2,
},
{
cpuShares: 245,
expectedCpuWeight: 10,
},
{
cpuShares: 262144,
expectedCpuWeight: 10000,
},
}
for _, testCase := range testCases {
if actual := cpuSharesToCPUWeight(testCase.cpuShares); actual != testCase.expectedCpuWeight {
t.Errorf("cpuShares: %v, expectedCpuWeight: %v, actualCpuWeight: %v",
testCase.cpuShares, testCase.expectedCpuWeight, actual)
}
}
}
func TestCpuWeightToCPUShares(t *testing.T) {
testCases := []struct {
cpuWeight uint64
expectedCpuShares uint64
}{
{
cpuWeight: 1,
expectedCpuShares: 2,
},
{
cpuWeight: 2,
expectedCpuShares: 28,
},
{
cpuWeight: 3,
expectedCpuShares: 54,
},
{
cpuWeight: 4,
expectedCpuShares: 80,
},
{
cpuWeight: 245,
expectedCpuShares: 6398,
},
{
cpuWeight: 10000,
expectedCpuShares: 262144,
},
}
for _, testCase := range testCases {
if actual := cpuWeightToCPUShares(testCase.cpuWeight); actual != testCase.expectedCpuShares {
t.Errorf("cpuWeight: %v, expectedCpuShares: %v, actualCpuShares: %v",
testCase.cpuWeight, testCase.expectedCpuShares, actual)
}
}
}