mirror of
https://github.com/k3s-io/kubernetes.git
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760 lines
18 KiB
Go
760 lines
18 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 taints
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import (
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"reflect"
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"strings"
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"testing"
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"k8s.io/api/core/v1"
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api "k8s.io/kubernetes/pkg/apis/core"
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"github.com/spf13/pflag"
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)
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func TestTaintsVar(t *testing.T) {
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cases := []struct {
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f string
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err bool
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t []api.Taint
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}{
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{
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f: "",
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t: []api.Taint(nil),
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},
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{
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f: "--t=foo=bar:NoSchedule",
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t: []api.Taint{{Key: "foo", Value: "bar", Effect: "NoSchedule"}},
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},
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{
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f: "--t=baz:NoSchedule",
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t: []api.Taint{{Key: "baz", Value: "", Effect: "NoSchedule"}},
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},
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{
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f: "--t=foo=bar:NoSchedule,baz:NoSchedule,bing=bang:PreferNoSchedule,qux=:NoSchedule",
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t: []api.Taint{
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{Key: "foo", Value: "bar", Effect: api.TaintEffectNoSchedule},
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{Key: "baz", Value: "", Effect: "NoSchedule"},
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{Key: "bing", Value: "bang", Effect: api.TaintEffectPreferNoSchedule},
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{Key: "qux", Value: "", Effect: "NoSchedule"},
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},
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},
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{
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f: "--t=dedicated-for=user1:NoExecute,baz:NoSchedule,foo-bar=:NoSchedule",
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t: []api.Taint{
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{Key: "dedicated-for", Value: "user1", Effect: "NoExecute"},
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{Key: "baz", Value: "", Effect: "NoSchedule"},
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{Key: "foo-bar", Value: "", Effect: "NoSchedule"},
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},
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},
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}
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for i, c := range cases {
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args := append([]string{"test"}, strings.Fields(c.f)...)
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cli := pflag.NewFlagSet("test", pflag.ContinueOnError)
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var taints []api.Taint
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cli.Var(NewTaintsVar(&taints), "t", "bar")
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err := cli.Parse(args)
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if err == nil && c.err {
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t.Errorf("[%v] expected error", i)
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continue
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}
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if err != nil && !c.err {
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t.Errorf("[%v] unexpected error: %v", i, err)
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continue
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}
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if !reflect.DeepEqual(c.t, taints) {
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t.Errorf("[%v] unexpected taints:\n\texpected:\n\t\t%#v\n\tgot:\n\t\t%#v", i, c.t, taints)
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}
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}
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}
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func TestAddOrUpdateTaint(t *testing.T) {
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node := &v1.Node{}
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taint := &v1.Taint{
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Key: "foo",
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Value: "bar",
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Effect: v1.TaintEffectNoSchedule,
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}
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checkResult := func(testCaseName string, newNode *v1.Node, expectedTaint *v1.Taint, result, expectedResult bool, err error) {
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if err != nil {
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t.Errorf("[%s] should not raise error but got %v", testCaseName, err)
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}
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if result != expectedResult {
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t.Errorf("[%s] should return %t, but got: %t", testCaseName, expectedResult, result)
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}
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if len(newNode.Spec.Taints) != 1 || !reflect.DeepEqual(newNode.Spec.Taints[0], *expectedTaint) {
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t.Errorf("[%s] node should only have one taint: %v, but got: %v", testCaseName, *expectedTaint, newNode.Spec.Taints)
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}
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}
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// Add a new Taint.
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newNode, result, err := AddOrUpdateTaint(node, taint)
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checkResult("Add New Taint", newNode, taint, result, true, err)
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// Update a Taint.
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taint.Value = "bar_1"
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newNode, result, err = AddOrUpdateTaint(node, taint)
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checkResult("Update Taint", newNode, taint, result, true, err)
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// Add a duplicate Taint.
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node = newNode
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newNode, result, err = AddOrUpdateTaint(node, taint)
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checkResult("Add Duplicate Taint", newNode, taint, result, false, err)
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}
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func TestTaintExists(t *testing.T) {
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testingTaints := []v1.Taint{
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{
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Key: "foo_1",
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Value: "bar_1",
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Effect: v1.TaintEffectNoExecute,
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},
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{
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Key: "foo_2",
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Value: "bar_2",
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Effect: v1.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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taintToFind *v1.Taint
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expectedResult bool
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}{
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{
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name: "taint exists",
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taintToFind: &v1.Taint{Key: "foo_1", Value: "bar_1", Effect: v1.TaintEffectNoExecute},
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expectedResult: true,
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},
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{
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name: "different key",
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taintToFind: &v1.Taint{Key: "no_such_key", Value: "bar_1", Effect: v1.TaintEffectNoExecute},
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expectedResult: false,
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},
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{
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name: "different effect",
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taintToFind: &v1.Taint{Key: "foo_1", Value: "bar_1", Effect: v1.TaintEffectNoSchedule},
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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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result := TaintExists(testingTaints, c.taintToFind)
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if result != c.expectedResult {
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t.Errorf("[%s] unexpected results: %v", c.name, result)
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continue
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}
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}
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}
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func TestRemoveTaint(t *testing.T) {
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cases := []struct {
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name string
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node *v1.Node
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taintToRemove *v1.Taint
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expectedTaints []v1.Taint
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expectedResult bool
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}{
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{
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name: "remove taint unsuccessfully",
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node: &v1.Node{
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Spec: v1.NodeSpec{
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Taints: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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},
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},
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taintToRemove: &v1.Taint{
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Key: "foo_1",
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Effect: v1.TaintEffectNoSchedule,
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},
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expectedTaints: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.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: "remove taint successfully",
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node: &v1.Node{
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Spec: v1.NodeSpec{
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Taints: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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},
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},
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taintToRemove: &v1.Taint{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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expectedTaints: []v1.Taint{},
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expectedResult: true,
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},
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{
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name: "remove taint from node with no taint",
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node: &v1.Node{
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Spec: v1.NodeSpec{
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Taints: []v1.Taint{},
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},
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},
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taintToRemove: &v1.Taint{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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expectedTaints: []v1.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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newNode, result, err := RemoveTaint(c.node, c.taintToRemove)
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if err != nil {
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t.Errorf("[%s] should not raise error but got: %v", c.name, err)
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}
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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(newNode.Spec.Taints, c.expectedTaints) {
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t.Errorf("[%s] the new node object should have taints %v, but got: %v", c.name, c.expectedTaints, newNode.Spec.Taints)
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}
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}
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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 []v1.Taint
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taintToDelete *v1.Taint
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expectedTaints []v1.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: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taintToDelete: &v1.Taint{Key: "foo_1", Effect: v1.TaintEffectNoSchedule},
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expectedTaints: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.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: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taintToDelete: &v1.Taint{Key: "foo", Effect: v1.TaintEffectNoExecute},
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expectedTaints: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.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: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taintToDelete: &v1.Taint{Key: "foo", Effect: v1.TaintEffectNoSchedule},
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expectedTaints: []v1.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: []v1.Taint{},
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taintToDelete: &v1.Taint{Key: "foo", Effect: v1.TaintEffectNoSchedule},
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expectedTaints: []v1.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 []v1.Taint
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taintKey string
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expectedTaints []v1.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: []v1.Taint{
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{
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Key: "foo",
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Value: "bar",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taintKey: "foo_1",
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expectedTaints: []v1.Taint{
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{
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Key: "foo",
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Value: "bar",
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Effect: v1.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: []v1.Taint{
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{
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Key: "foo",
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Value: "bar",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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taintKey: "foo",
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expectedTaints: []v1.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: []v1.Taint{},
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taintKey: "foo",
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expectedTaints: []v1.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 := []v1.Taint{
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{
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Key: "foo_1",
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Value: "bar",
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Effect: v1.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: v1.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: v1.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 []v1.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: []v1.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: []v1.Taint{
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{
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Key: "foo_1",
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Effect: v1.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: []v1.Taint{
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{
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Key: "foo_2",
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Effect: v1.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: []v1.Taint{
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{
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Key: "foo_2",
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Effect: v1.TaintEffectNoSchedule,
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},
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{
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Key: "foo_3",
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Effect: v1.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 := &v1.Node{
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Spec: v1.NodeSpec{
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Taints: []v1.Taint{
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{
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Key: "foo",
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Value: "bar",
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Effect: v1.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 []v1.Taint
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taintsToDelete []v1.Taint
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expectedTaints []v1.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: []v1.Taint{},
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taintsToDelete: []v1.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: []v1.Taint{},
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taintsToDelete: []v1.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: []v1.Taint{
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{
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Key: "foo_1",
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Effect: v1.TaintEffectNoExecute,
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},
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},
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taintsToDelete: []v1.Taint{},
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expectedTaints: append([]v1.Taint{{Key: "foo_1", Effect: v1.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: []v1.Taint{},
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taintsToDelete: []v1.Taint{
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{
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Key: "foo",
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Effect: v1.TaintEffectNoSchedule,
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},
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},
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expectedTaints: []v1.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: []v1.Taint{},
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taintsToDelete: []v1.Taint{
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{
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Key: "foo",
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},
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},
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expectedTaints: []v1.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,
|
|
taintsToAdd: []v1.Taint{},
|
|
taintsToDelete: []v1.Taint{
|
|
{
|
|
Key: "foo_1",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
},
|
|
expectedTaints: node.Spec.Taints,
|
|
expectedOperation: UNTAINTED,
|
|
expectedErr: true,
|
|
},
|
|
{
|
|
name: "add new taint and delete old one",
|
|
overwrite: false,
|
|
taintsToAdd: []v1.Taint{
|
|
{
|
|
Key: "foo_1",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
},
|
|
taintsToDelete: []v1.Taint{
|
|
{
|
|
Key: "foo",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
},
|
|
expectedTaints: []v1.Taint{
|
|
{
|
|
Key: "foo_1",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
},
|
|
expectedOperation: MODIFIED,
|
|
expectedErr: false,
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
operation, taints, err := ReorganizeTaints(node, c.overwrite, c.taintsToAdd, c.taintsToDelete)
|
|
if c.expectedErr && err == nil {
|
|
t.Errorf("[%s] expect to see an error, but did not get one", c.name)
|
|
} else if !c.expectedErr && err != nil {
|
|
t.Errorf("[%s] expect not to see an error, but got one: %v", c.name, err)
|
|
}
|
|
|
|
if !reflect.DeepEqual(c.expectedTaints, taints) {
|
|
t.Errorf("[%s] expect to see taint list %#v, but got: %#v", c.name, c.expectedTaints, taints)
|
|
}
|
|
|
|
if c.expectedOperation != operation {
|
|
t.Errorf("[%s] expect to see operation %s, but got: %s", c.name, c.expectedOperation, operation)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestParseTaints(t *testing.T) {
|
|
cases := []struct {
|
|
name string
|
|
spec []string
|
|
expectedTaints []v1.Taint
|
|
expectedTaintsToRemove []v1.Taint
|
|
expectedErr bool
|
|
}{
|
|
{
|
|
name: "invalid spec format",
|
|
spec: []string{""},
|
|
expectedErr: true,
|
|
},
|
|
{
|
|
name: "invalid spec format",
|
|
spec: []string{"foo=abc"},
|
|
expectedErr: true,
|
|
},
|
|
{
|
|
name: "invalid spec format",
|
|
spec: []string{"foo=abc=xyz:NoSchedule"},
|
|
expectedErr: true,
|
|
},
|
|
{
|
|
name: "invalid spec format",
|
|
spec: []string{"foo=abc:xyz:NoSchedule"},
|
|
expectedErr: true,
|
|
},
|
|
{
|
|
name: "invalid spec format for adding taint",
|
|
spec: []string{"foo"},
|
|
expectedErr: true,
|
|
},
|
|
{
|
|
name: "invalid spec effect for adding taint",
|
|
spec: []string{"foo=abc:invalid_effect"},
|
|
expectedErr: true,
|
|
},
|
|
{
|
|
name: "invalid spec effect for deleting taint",
|
|
spec: []string{"foo:invalid_effect-"},
|
|
expectedErr: true,
|
|
},
|
|
{
|
|
name: "add new taints",
|
|
spec: []string{"foo=abc:NoSchedule", "bar=abc:NoSchedule", "baz:NoSchedule", "qux:NoSchedule", "foobar=:NoSchedule"},
|
|
expectedTaints: []v1.Taint{
|
|
{
|
|
Key: "foo",
|
|
Value: "abc",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "bar",
|
|
Value: "abc",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "baz",
|
|
Value: "",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "qux",
|
|
Value: "",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "foobar",
|
|
Value: "",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
},
|
|
expectedErr: false,
|
|
},
|
|
{
|
|
name: "delete taints",
|
|
spec: []string{"foo:NoSchedule-", "bar:NoSchedule-", "qux=:NoSchedule-", "dedicated-"},
|
|
expectedTaintsToRemove: []v1.Taint{
|
|
{
|
|
Key: "foo",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "bar",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "qux",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "dedicated",
|
|
},
|
|
},
|
|
expectedErr: false,
|
|
},
|
|
{
|
|
name: "add taints and delete taints",
|
|
spec: []string{"foo=abc:NoSchedule", "bar=abc:NoSchedule", "baz:NoSchedule", "qux:NoSchedule", "foobar=:NoSchedule", "foo:NoSchedule-", "bar:NoSchedule-", "baz=:NoSchedule-"},
|
|
expectedTaints: []v1.Taint{
|
|
{
|
|
Key: "foo",
|
|
Value: "abc",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "bar",
|
|
Value: "abc",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "baz",
|
|
Value: "",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "qux",
|
|
Value: "",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "foobar",
|
|
Value: "",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
},
|
|
expectedTaintsToRemove: []v1.Taint{
|
|
{
|
|
Key: "foo",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "bar",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
{
|
|
Key: "baz",
|
|
Value: "",
|
|
Effect: v1.TaintEffectNoSchedule,
|
|
},
|
|
},
|
|
expectedErr: false,
|
|
},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
taints, taintsToRemove, err := ParseTaints(c.spec)
|
|
if c.expectedErr && err == nil {
|
|
t.Errorf("[%s] expected error for spec %s, but got nothing", c.name, c.spec)
|
|
}
|
|
if !c.expectedErr && err != nil {
|
|
t.Errorf("[%s] expected no error for spec %s, but got: %v", c.name, c.spec, err)
|
|
}
|
|
if !reflect.DeepEqual(c.expectedTaints, taints) {
|
|
t.Errorf("[%s] expected returen taints as %v, but got: %v", c.name, c.expectedTaints, taints)
|
|
}
|
|
if !reflect.DeepEqual(c.expectedTaintsToRemove, taintsToRemove) {
|
|
t.Errorf("[%s] expected return taints to be removed as %v, but got: %v", c.name, c.expectedTaintsToRemove, taintsToRemove)
|
|
}
|
|
}
|
|
}
|