mirror of
https://github.com/k3s-io/kubernetes.git
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472 lines
11 KiB
Go
472 lines
11 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 taint
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import (
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"reflect"
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"testing"
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corev1 "k8s.io/api/core/v1"
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)
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func TestDeleteTaint(t *testing.T) {
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cases := []struct {
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name string
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taints []corev1.Taint
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taintToDelete *corev1.Taint
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expectedTaints []corev1.Taint
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expectedResult bool
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}{
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{
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name: "delete taint with different name",
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taints: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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taintToDelete: &corev1.Taint{Key: "foo_1", Effect: corev1.TaintEffectNoSchedule},
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expectedTaints: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedResult: false,
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},
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{
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name: "delete taint with different effect",
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taints: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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taintToDelete: &corev1.Taint{Key: "foo", Effect: corev1.TaintEffectNoExecute},
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expectedTaints: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedResult: false,
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},
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{
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name: "delete taint successfully",
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taints: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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taintToDelete: &corev1.Taint{Key: "foo", Effect: corev1.TaintEffectNoSchedule},
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expectedTaints: []corev1.Taint{},
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expectedResult: true,
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},
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{
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name: "delete taint from empty taint array",
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taints: []corev1.Taint{},
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taintToDelete: &corev1.Taint{Key: "foo", Effect: corev1.TaintEffectNoSchedule},
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expectedTaints: []corev1.Taint{},
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expectedResult: false,
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},
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}
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for _, c := range cases {
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taints, result := deleteTaint(c.taints, c.taintToDelete)
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if result != c.expectedResult {
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t.Errorf("[%s] should return %t, but got: %t", c.name, c.expectedResult, result)
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}
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if !reflect.DeepEqual(taints, c.expectedTaints) {
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t.Errorf("[%s] the result taints should be %v, but got: %v", c.name, c.expectedTaints, taints)
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}
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}
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}
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func TestDeleteTaintByKey(t *testing.T) {
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cases := []struct {
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name string
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taints []corev1.Taint
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taintKey string
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expectedTaints []corev1.Taint
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expectedResult bool
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}{
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{
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name: "delete taint unsuccessfully",
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taints: []corev1.Taint{
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{
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Key: "foo",
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Value: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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taintKey: "foo_1",
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expectedTaints: []corev1.Taint{
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{
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Key: "foo",
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Value: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedResult: false,
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},
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{
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name: "delete taint successfully",
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taints: []corev1.Taint{
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{
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Key: "foo",
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Value: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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taintKey: "foo",
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expectedTaints: []corev1.Taint{},
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expectedResult: true,
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},
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{
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name: "delete taint from empty taint array",
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taints: []corev1.Taint{},
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taintKey: "foo",
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expectedTaints: []corev1.Taint{},
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expectedResult: false,
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},
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}
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for _, c := range cases {
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taints, result := deleteTaintsByKey(c.taints, c.taintKey)
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if result != c.expectedResult {
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t.Errorf("[%s] should return %t, but got: %t", c.name, c.expectedResult, result)
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}
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if !reflect.DeepEqual(c.expectedTaints, taints) {
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t.Errorf("[%s] the result taints should be %v, but got: %v", c.name, c.expectedTaints, taints)
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}
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}
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}
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func TestCheckIfTaintsAlreadyExists(t *testing.T) {
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oldTaints := []corev1.Taint{
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{
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Key: "foo_1",
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Value: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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{
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Key: "foo_2",
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Value: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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{
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Key: "foo_3",
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Value: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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}
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cases := []struct {
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name string
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taintsToCheck []corev1.Taint
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expectedResult string
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}{
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{
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name: "empty array",
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taintsToCheck: []corev1.Taint{},
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expectedResult: "",
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},
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{
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name: "no match",
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taintsToCheck: []corev1.Taint{
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{
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Key: "foo_1",
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Effect: corev1.TaintEffectNoExecute,
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},
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},
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expectedResult: "",
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},
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{
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name: "match one taint",
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taintsToCheck: []corev1.Taint{
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{
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Key: "foo_2",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedResult: "foo_2",
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},
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{
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name: "match two taints",
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taintsToCheck: []corev1.Taint{
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{
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Key: "foo_2",
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Effect: corev1.TaintEffectNoSchedule,
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},
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{
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Key: "foo_3",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedResult: "foo_2,foo_3",
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},
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}
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for _, c := range cases {
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result := checkIfTaintsAlreadyExists(oldTaints, c.taintsToCheck)
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if result != c.expectedResult {
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t.Errorf("[%s] should return '%s', but got: '%s'", c.name, c.expectedResult, result)
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}
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}
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}
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func TestReorganizeTaints(t *testing.T) {
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node := &corev1.Node{
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Spec: corev1.NodeSpec{
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Taints: []corev1.Taint{
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{
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Key: "foo",
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Value: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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},
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}
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cases := []struct {
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name string
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overwrite bool
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taintsToAdd []corev1.Taint
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taintsToDelete []corev1.Taint
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expectedTaints []corev1.Taint
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expectedOperation string
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expectedErr bool
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}{
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{
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name: "no changes with overwrite is true",
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overwrite: true,
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taintsToAdd: []corev1.Taint{},
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taintsToDelete: []corev1.Taint{},
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expectedTaints: node.Spec.Taints,
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expectedOperation: MODIFIED,
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expectedErr: false,
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},
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{
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name: "no changes with overwrite is false",
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overwrite: false,
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taintsToAdd: []corev1.Taint{},
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taintsToDelete: []corev1.Taint{},
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expectedTaints: node.Spec.Taints,
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expectedOperation: UNTAINTED,
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expectedErr: false,
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},
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{
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name: "add new taint",
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overwrite: false,
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taintsToAdd: []corev1.Taint{
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{
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Key: "foo_1",
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Effect: corev1.TaintEffectNoExecute,
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},
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},
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taintsToDelete: []corev1.Taint{},
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expectedTaints: append([]corev1.Taint{{Key: "foo_1", Effect: corev1.TaintEffectNoExecute}}, node.Spec.Taints...),
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expectedOperation: TAINTED,
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expectedErr: false,
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},
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{
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name: "delete taint with effect",
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overwrite: false,
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taintsToAdd: []corev1.Taint{},
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taintsToDelete: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedTaints: []corev1.Taint{},
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expectedOperation: UNTAINTED,
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expectedErr: false,
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},
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{
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name: "delete taint with no effect",
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overwrite: false,
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taintsToAdd: []corev1.Taint{},
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taintsToDelete: []corev1.Taint{
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{
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Key: "foo",
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},
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},
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expectedTaints: []corev1.Taint{},
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expectedOperation: UNTAINTED,
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expectedErr: false,
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},
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{
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name: "delete non-exist taint",
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overwrite: false,
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taintsToAdd: []corev1.Taint{},
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taintsToDelete: []corev1.Taint{
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{
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Key: "foo_1",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedTaints: node.Spec.Taints,
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expectedOperation: UNTAINTED,
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expectedErr: true,
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},
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{
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name: "add new taint and delete old one",
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overwrite: false,
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taintsToAdd: []corev1.Taint{
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{
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Key: "foo_1",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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taintsToDelete: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedTaints: []corev1.Taint{
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{
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Key: "foo_1",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedOperation: MODIFIED,
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expectedErr: false,
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},
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}
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for _, c := range cases {
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operation, taints, err := reorganizeTaints(node, c.overwrite, c.taintsToAdd, c.taintsToDelete)
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if c.expectedErr && err == nil {
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t.Errorf("[%s] expect to see an error, but did not get one", c.name)
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} else if !c.expectedErr && err != nil {
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t.Errorf("[%s] expect not to see an error, but got one: %v", c.name, err)
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}
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if !reflect.DeepEqual(c.expectedTaints, taints) {
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t.Errorf("[%s] expect to see taint list %#v, but got: %#v", c.name, c.expectedTaints, taints)
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}
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if c.expectedOperation != operation {
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t.Errorf("[%s] expect to see operation %s, but got: %s", c.name, c.expectedOperation, operation)
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}
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}
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}
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func TestParseTaints(t *testing.T) {
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cases := []struct {
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name string
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spec []string
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expectedTaints []corev1.Taint
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expectedTaintsToRemove []corev1.Taint
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expectedErr bool
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}{
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{
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name: "invalid spec format",
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spec: []string{"foo=abc"},
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expectedErr: true,
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},
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{
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name: "invalid spec effect for adding taint",
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spec: []string{"foo=abc:invalid_effect"},
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expectedErr: true,
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},
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{
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name: "invalid spec effect for deleting taint",
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spec: []string{"foo:invalid_effect-"},
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expectedErr: true,
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},
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{
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name: "add new taints",
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spec: []string{"foo=abc:NoSchedule", "bar=abc:NoSchedule"},
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expectedTaints: []corev1.Taint{
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{
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Key: "foo",
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Value: "abc",
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Effect: corev1.TaintEffectNoSchedule,
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},
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{
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Key: "bar",
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Value: "abc",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedErr: false,
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},
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{
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name: "delete taints",
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spec: []string{"foo:NoSchedule-", "bar:NoSchedule-"},
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expectedTaintsToRemove: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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{
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Key: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedErr: false,
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},
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{
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name: "add taints and delete taints",
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spec: []string{"foo=abc:NoSchedule", "bar=abc:NoSchedule", "foo:NoSchedule-", "bar:NoSchedule-"},
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expectedTaints: []corev1.Taint{
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{
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Key: "foo",
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Value: "abc",
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Effect: corev1.TaintEffectNoSchedule,
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},
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{
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Key: "bar",
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Value: "abc",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedTaintsToRemove: []corev1.Taint{
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{
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Key: "foo",
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Effect: corev1.TaintEffectNoSchedule,
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},
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{
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Key: "bar",
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Effect: corev1.TaintEffectNoSchedule,
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},
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},
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expectedErr: false,
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},
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}
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for _, c := range cases {
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taints, taintsToRemove, err := parseTaints(c.spec)
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if c.expectedErr && err == nil {
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t.Errorf("[%s] expected error, but got nothing", c.name)
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}
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if !c.expectedErr && err != nil {
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t.Errorf("[%s] expected no error, but got: %v", c.name, err)
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}
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if !reflect.DeepEqual(c.expectedTaints, taints) {
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t.Errorf("[%s] expected returen taints as %v, but got: %v", c.name, c.expectedTaints, taints)
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}
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if !reflect.DeepEqual(c.expectedTaintsToRemove, taintsToRemove) {
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t.Errorf("[%s] expected return taints to be removed as %v, but got: %v", c.name, c.expectedTaintsToRemove, taintsToRemove)
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}
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}
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}
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