mirror of
https://github.com/k3s-io/kubernetes.git
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340 lines
9.1 KiB
Go
340 lines
9.1 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 util
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import (
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"reflect"
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"sort"
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"testing"
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)
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func TestBuildArgumentListFromMap(t *testing.T) {
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var tests = []struct {
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base map[string]string
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overrides map[string]string
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expected []string
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}{
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{ // override an argument from the base
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base: map[string]string{
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"admission-control": "NamespaceLifecycle",
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"insecure-bind-address": "127.0.0.1",
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"allow-privileged": "true",
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},
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overrides: map[string]string{
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"admission-control": "NamespaceLifecycle,LimitRanger",
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},
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expected: []string{
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--allow-privileged=true",
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"--insecure-bind-address=127.0.0.1",
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},
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},
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{ // add an argument that is not in base
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base: map[string]string{
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"insecure-bind-address": "127.0.0.1",
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"allow-privileged": "true",
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},
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overrides: map[string]string{
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"admission-control": "NamespaceLifecycle,LimitRanger",
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},
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expected: []string{
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--allow-privileged=true",
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"--insecure-bind-address=127.0.0.1",
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},
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},
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{ // allow empty strings in base
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base: map[string]string{
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"insecure-bind-address": "127.0.0.1",
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"allow-privileged": "true",
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"something-that-allows-empty-string": "",
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},
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overrides: map[string]string{
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"admission-control": "NamespaceLifecycle,LimitRanger",
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},
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expected: []string{
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--allow-privileged=true",
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"--insecure-bind-address=127.0.0.1",
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"--something-that-allows-empty-string=",
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},
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},
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{ // allow empty strings in overrides
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base: map[string]string{
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"insecure-bind-address": "127.0.0.1",
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"allow-privileged": "true",
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"something-that-allows-empty-string": "foo",
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},
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overrides: map[string]string{
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"admission-control": "NamespaceLifecycle,LimitRanger",
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"something-that-allows-empty-string": "",
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},
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expected: []string{
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--something-that-allows-empty-string=",
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"--allow-privileged=true",
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"--insecure-bind-address=127.0.0.1",
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},
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},
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}
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for _, rt := range tests {
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actual := BuildArgumentListFromMap(rt.base, rt.overrides)
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if !reflect.DeepEqual(actual, rt.expected) {
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t.Errorf("failed BuildArgumentListFromMap:\nexpected:\n%v\nsaw:\n%v", rt.expected, actual)
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}
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}
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}
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func TestParseArgumentListToMap(t *testing.T) {
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var tests = []struct {
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args []string
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expectedMap map[string]string
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}{
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{
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// normal case
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args: []string{
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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},
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expectedMap: map[string]string{
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"admission-control": "NamespaceLifecycle,LimitRanger",
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"insecure-bind-address": "127.0.0.1",
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"allow-privileged": "true",
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},
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},
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{
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// test that feature-gates is working
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args: []string{
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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"--feature-gates=EnableFoo=true,EnableBar=false",
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},
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expectedMap: map[string]string{
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"admission-control": "NamespaceLifecycle,LimitRanger",
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"insecure-bind-address": "127.0.0.1",
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"allow-privileged": "true",
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"feature-gates": "EnableFoo=true,EnableBar=false",
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},
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},
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{
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// test that a binary can be the first arg
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args: []string{
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"kube-apiserver",
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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"--feature-gates=EnableFoo=true,EnableBar=false",
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},
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expectedMap: map[string]string{
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"admission-control": "NamespaceLifecycle,LimitRanger",
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"insecure-bind-address": "127.0.0.1",
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"allow-privileged": "true",
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"feature-gates": "EnableFoo=true,EnableBar=false",
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},
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},
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}
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for _, rt := range tests {
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actualMap := ParseArgumentListToMap(rt.args)
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if !reflect.DeepEqual(actualMap, rt.expectedMap) {
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t.Errorf("failed ParseArgumentListToMap:\nexpected:\n%v\nsaw:\n%v", rt.expectedMap, actualMap)
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}
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}
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}
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func TestReplaceArgument(t *testing.T) {
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var tests = []struct {
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args []string
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mutateFunc func(map[string]string) map[string]string
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expectedArgs []string
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}{
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{
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// normal case
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args: []string{
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"kube-apiserver",
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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},
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mutateFunc: func(argMap map[string]string) map[string]string {
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argMap["admission-control"] = "NamespaceLifecycle,LimitRanger,ResourceQuota"
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return argMap
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},
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expectedArgs: []string{
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"kube-apiserver",
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"--admission-control=NamespaceLifecycle,LimitRanger,ResourceQuota",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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},
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},
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{
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// normal case
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args: []string{
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"kube-apiserver",
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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},
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mutateFunc: func(argMap map[string]string) map[string]string {
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argMap["new-arg-here"] = "foo"
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return argMap
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},
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expectedArgs: []string{
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"kube-apiserver",
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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"--new-arg-here=foo",
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},
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},
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}
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for _, rt := range tests {
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actualArgs := ReplaceArgument(rt.args, rt.mutateFunc)
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sort.Strings(actualArgs)
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sort.Strings(rt.expectedArgs)
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if !reflect.DeepEqual(actualArgs, rt.expectedArgs) {
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t.Errorf("failed ReplaceArgument:\nexpected:\n%v\nsaw:\n%v", rt.expectedArgs, actualArgs)
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}
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}
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}
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func TestRoundtrip(t *testing.T) {
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var tests = []struct {
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args []string
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}{
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{
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// normal case
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args: []string{
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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},
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},
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{
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// test that feature-gates is working
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args: []string{
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"--admission-control=NamespaceLifecycle,LimitRanger",
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"--insecure-bind-address=127.0.0.1",
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"--allow-privileged=true",
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"--feature-gates=EnableFoo=true,EnableBar=false",
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},
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},
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}
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for _, rt := range tests {
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// These two methods should be each other's opposite functions, test that by chaining the methods and see if you get the same result back
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actual := BuildArgumentListFromMap(ParseArgumentListToMap(rt.args), map[string]string{})
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sort.Strings(actual)
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sort.Strings(rt.args)
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if !reflect.DeepEqual(actual, rt.args) {
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t.Errorf("failed TestRoundtrip:\nexpected:\n%v\nsaw:\n%v", rt.args, actual)
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}
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}
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}
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func TestParseArgument(t *testing.T) {
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var tests = []struct {
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arg string
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expectedKey string
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expectedVal string
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expectedErr bool
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}{
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{
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// cannot be empty
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arg: "",
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expectedErr: true,
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},
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{
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// must contain -- and =
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arg: "a",
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expectedErr: true,
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},
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{
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// must contain -- and =
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arg: "a-z",
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expectedErr: true,
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},
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{
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// must contain --
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arg: "a=b",
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expectedErr: true,
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},
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{
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// must contain a key
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arg: "--=b",
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expectedErr: true,
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},
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{
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// can contain key but no value
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arg: "--a=",
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expectedKey: "a",
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expectedVal: "",
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expectedErr: false,
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},
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{
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// simple case
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arg: "--a=b",
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expectedKey: "a",
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expectedVal: "b",
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expectedErr: false,
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},
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{
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// keys/values with '-' should be supported
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arg: "--very-long-flag-name=some-value",
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expectedKey: "very-long-flag-name",
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expectedVal: "some-value",
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expectedErr: false,
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},
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{
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// numbers should be handled correctly
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arg: "--some-number=0.2",
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expectedKey: "some-number",
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expectedVal: "0.2",
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expectedErr: false,
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},
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{
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// lists should be handled correctly
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arg: "--admission-control=foo,bar,baz",
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expectedKey: "admission-control",
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expectedVal: "foo,bar,baz",
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expectedErr: false,
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},
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{
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// more than one '=' should be allowed
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arg: "--feature-gates=EnableFoo=true,EnableBar=false",
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expectedKey: "feature-gates",
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expectedVal: "EnableFoo=true,EnableBar=false",
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expectedErr: false,
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},
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}
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for _, rt := range tests {
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key, val, actual := parseArgument(rt.arg)
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if (actual != nil) != rt.expectedErr {
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t.Errorf("failed parseArgument:\nexpected error:\n%t\nsaw error:\n%v", rt.expectedErr, actual)
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}
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if (key != rt.expectedKey) || (val != rt.expectedVal) {
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t.Errorf("failed parseArgument:\nexpected key: %s\nsaw key: %s\nexpected value: %s\nsaw value: %s", rt.expectedKey, key, rt.expectedVal, val)
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}
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}
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}
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