kubernetes utils_test 源码
kubernetes utils_test 代码
文件路径：/staging/src/k8s.io/kubectl/pkg/cmd/taint/utils_test.go
/*
Copyright 2016 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package taint
import (
"reflect"
"testing"
corev1 "k8s.io/api/core/v1"
)
func TestDeleteTaint(t *testing.T) {
cases := []struct {
name string
taints []corev1.Taint
taintToDelete *corev1.Taint
expectedTaints []corev1.Taint
expectedResult bool
}{
{
name: "delete taint with different name",
taints: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
},
taintToDelete: &corev1.Taint{Key: "foo_1", Effect: corev1.TaintEffectNoSchedule},
expectedTaints: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedResult: false,
},
{
name: "delete taint with different effect",
taints: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
},
taintToDelete: &corev1.Taint{Key: "foo", Effect: corev1.TaintEffectNoExecute},
expectedTaints: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedResult: false,
},
{
name: "delete taint successfully",
taints: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
},
taintToDelete: &corev1.Taint{Key: "foo", Effect: corev1.TaintEffectNoSchedule},
expectedTaints: []corev1.Taint{},
expectedResult: true,
},
{
name: "delete taint from empty taint array",
taints: []corev1.Taint{},
taintToDelete: &corev1.Taint{Key: "foo", Effect: corev1.TaintEffectNoSchedule},
expectedTaints: []corev1.Taint{},
expectedResult: false,
},
}
for _, c := range cases {
taints, result := deleteTaint(c.taints, c.taintToDelete)
if result != c.expectedResult {
t.Errorf("[%s] should return %t, but got: %t", c.name, c.expectedResult, result)
}
if !reflect.DeepEqual(taints, c.expectedTaints) {
t.Errorf("[%s] the result taints should be %v, but got: %v", c.name, c.expectedTaints, taints)
}
}
}
func TestDeleteTaintByKey(t *testing.T) {
cases := []struct {
name string
taints []corev1.Taint
taintKey string
expectedTaints []corev1.Taint
expectedResult bool
}{
{
name: "delete taint unsuccessfully",
taints: []corev1.Taint{
{
Key: "foo",
Value: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
},
taintKey: "foo_1",
expectedTaints: []corev1.Taint{
{
Key: "foo",
Value: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedResult: false,
},
{
name: "delete taint successfully",
taints: []corev1.Taint{
{
Key: "foo",
Value: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
},
taintKey: "foo",
expectedTaints: []corev1.Taint{},
expectedResult: true,
},
{
name: "delete taint from empty taint array",
taints: []corev1.Taint{},
taintKey: "foo",
expectedTaints: []corev1.Taint{},
expectedResult: false,
},
}
for _, c := range cases {
taints, result := deleteTaintsByKey(c.taints, c.taintKey)
if result != c.expectedResult {
t.Errorf("[%s] should return %t, but got: %t", c.name, c.expectedResult, result)
}
if !reflect.DeepEqual(c.expectedTaints, taints) {
t.Errorf("[%s] the result taints should be %v, but got: %v", c.name, c.expectedTaints, taints)
}
}
}
func TestCheckIfTaintsAlreadyExists(t *testing.T) {
oldTaints := []corev1.Taint{
{
Key: "foo_1",
Value: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "foo_2",
Value: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "foo_3",
Value: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
}
cases := []struct {
name string
taintsToCheck []corev1.Taint
expectedResult string
}{
{
name: "empty array",
taintsToCheck: []corev1.Taint{},
expectedResult: "",
},
{
name: "no match",
taintsToCheck: []corev1.Taint{
{
Key: "foo_1",
Effect: corev1.TaintEffectNoExecute,
},
},
expectedResult: "",
},
{
name: "match one taint",
taintsToCheck: []corev1.Taint{
{
Key: "foo_2",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedResult: "foo_2",
},
{
name: "match two taints",
taintsToCheck: []corev1.Taint{
{
Key: "foo_2",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "foo_3",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedResult: "foo_2,foo_3",
},
}
for _, c := range cases {
result := checkIfTaintsAlreadyExists(oldTaints, c.taintsToCheck)
if result != c.expectedResult {
t.Errorf("[%s] should return '%s', but got: '%s'", c.name, c.expectedResult, result)
}
}
}
func TestReorganizeTaints(t *testing.T) {
node := &corev1.Node{
Spec: corev1.NodeSpec{
Taints: []corev1.Taint{
{
Key: "foo",
Value: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
},
},
}
cases := []struct {
name string
overwrite bool
taintsToAdd []corev1.Taint
taintsToDelete []corev1.Taint
expectedTaints []corev1.Taint
expectedOperation string
expectedErr bool
}{
{
name: "no changes with overwrite is true",
overwrite: true,
taintsToAdd: []corev1.Taint{},
taintsToDelete: []corev1.Taint{},
expectedTaints: node.Spec.Taints,
expectedOperation: MODIFIED,
expectedErr: false,
},
{
name: "no changes with overwrite is false",
overwrite: false,
taintsToAdd: []corev1.Taint{},
taintsToDelete: []corev1.Taint{},
expectedTaints: node.Spec.Taints,
expectedOperation: UNTAINTED,
expectedErr: false,
},
{
name: "add new taint",
overwrite: false,
taintsToAdd: []corev1.Taint{
{
Key: "foo_1",
Effect: corev1.TaintEffectNoExecute,
},
},
taintsToDelete: []corev1.Taint{},
expectedTaints: append([]corev1.Taint{{Key: "foo_1", Effect: corev1.TaintEffectNoExecute}}, node.Spec.Taints...),
expectedOperation: TAINTED,
expectedErr: false,
},
{
name: "delete taint with effect",
overwrite: false,
taintsToAdd: []corev1.Taint{},
taintsToDelete: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedTaints: []corev1.Taint{},
expectedOperation: UNTAINTED,
expectedErr: false,
},
{
name: "delete taint with no effect",
overwrite: false,
taintsToAdd: []corev1.Taint{},
taintsToDelete: []corev1.Taint{
{
Key: "foo",
},
},
expectedTaints: []corev1.Taint{},
expectedOperation: UNTAINTED,
expectedErr: false,
},
{
name: "delete non-exist taint",
overwrite: false,
taintsToAdd: []corev1.Taint{},
taintsToDelete: []corev1.Taint{
{
Key: "foo_1",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedTaints: node.Spec.Taints,
expectedOperation: UNTAINTED,
expectedErr: true,
},
{
name: "add new taint and delete old one",
overwrite: false,
taintsToAdd: []corev1.Taint{
{
Key: "foo_1",
Effect: corev1.TaintEffectNoSchedule,
},
},
taintsToDelete: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedTaints: []corev1.Taint{
{
Key: "foo_1",
Effect: corev1.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 []corev1.Taint
expectedTaintsToRemove []corev1.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: []corev1.Taint{
{
Key: "foo",
Value: "abc",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "bar",
Value: "abc",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "baz",
Value: "",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "qux",
Value: "",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "foobar",
Value: "",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedErr: false,
},
{
name: "delete taints",
spec: []string{"foo:NoSchedule-", "bar:NoSchedule-", "qux=:NoSchedule-", "dedicated-"},
expectedTaintsToRemove: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "qux",
Effect: corev1.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: []corev1.Taint{
{
Key: "foo",
Value: "abc",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "bar",
Value: "abc",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "baz",
Value: "",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "qux",
Value: "",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "foobar",
Value: "",
Effect: corev1.TaintEffectNoSchedule,
},
},
expectedTaintsToRemove: []corev1.Taint{
{
Key: "foo",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "bar",
Effect: corev1.TaintEffectNoSchedule,
},
{
Key: "baz",
Value: "",
Effect: corev1.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)
}
}
}
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