kubernetes helpers_test 源码
kubernetes helpers_test 代码
文件路径：/pkg/apis/core/v1/helper/helpers_test.go
/*
Copyright 2015 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 helper
import (
"fmt"
"reflect"
"testing"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
"k8s.io/apimachinery/pkg/labels"
)
func TestIsNativeResource(t *testing.T) {
testCases := []struct {
resourceName v1.ResourceName
expectVal bool
}{
{
resourceName: "pod.alpha.kubernetes.io/opaque-int-resource-foo",
expectVal: true,
},
{
resourceName: "kubernetes.io/resource-foo",
expectVal: true,
},
{
resourceName: "foo",
expectVal: true,
},
{
resourceName: "a/b",
expectVal: false,
},
{
resourceName: "",
expectVal: true,
},
}
for _, tc := range testCases {
tc := tc
t.Run(fmt.Sprintf("resourceName input=%s, expected value=%v", tc.resourceName, tc.expectVal), func(t *testing.T) {
t.Parallel()
v := IsNativeResource(tc.resourceName)
if v != tc.expectVal {
t.Errorf("Got %v but expected %v", v, tc.expectVal)
}
})
}
}
func TestHugePageSizeFromResourceName(t *testing.T) {
expected100m, _ := resource.ParseQuantity("100m")
testCases := []struct {
resourceName v1.ResourceName
expectVal resource.Quantity
expectErr bool
}{
{
resourceName: "pod.alpha.kubernetes.io/opaque-int-resource-foo",
expectVal: resource.Quantity{},
expectErr: true,
},
{
resourceName: "hugepages-",
expectVal: resource.Quantity{},
expectErr: true,
},
{
resourceName: "hugepages-100m",
expectVal: expected100m,
expectErr: false,
},
{
resourceName: "",
expectVal: resource.Quantity{},
expectErr: true,
},
}
for i, tc := range testCases {
i := i
tc := tc
t.Run(fmt.Sprintf("resourceName input=%s, expected value=%v", tc.resourceName, tc.expectVal), func(t *testing.T) {
t.Parallel()
v, err := HugePageSizeFromResourceName(tc.resourceName)
if err == nil && tc.expectErr {
t.Errorf("[%v]expected error but got none.", i)
}
if err != nil && !tc.expectErr {
t.Errorf("[%v]did not expect error but got: %v", i, err)
}
if v != tc.expectVal {
t.Errorf("Got %v but expected %v", v, tc.expectVal)
}
})
}
}
func TestHugePageSizeFromMedium(t *testing.T) {
testCases := []struct {
description string
medium v1.StorageMedium
expectVal resource.Quantity
expectErr bool
}{
{
description: "Invalid hugepages medium",
medium: "Memory",
expectVal: resource.Quantity{},
expectErr: true,
},
{
description: "Invalid hugepages medium",
medium: "Memory",
expectVal: resource.Quantity{},
expectErr: true,
},
{
description: "Invalid: HugePages without size",
medium: "HugePages",
expectVal: resource.Quantity{},
expectErr: true,
},
{
description: "Invalid: HugePages without size",
medium: "HugePages",
expectVal: resource.Quantity{},
expectErr: true,
},
{
description: "Valid: HugePages-1Gi",
medium: "HugePages-1Gi",
expectVal: resource.MustParse("1Gi"),
expectErr: false,
},
{
description: "Valid: HugePages-2Mi",
medium: "HugePages-2Mi",
expectVal: resource.MustParse("2Mi"),
expectErr: false,
},
{
description: "Valid: HugePages-64Ki",
medium: "HugePages-64Ki",
expectVal: resource.MustParse("64Ki"),
expectErr: false,
},
}
for i, tc := range testCases {
i := i
tc := tc
t.Run(tc.description, func(t *testing.T) {
t.Parallel()
v, err := HugePageSizeFromMedium(tc.medium)
if err == nil && tc.expectErr {
t.Errorf("[%v]expected error but got none.", i)
}
if err != nil && !tc.expectErr {
t.Errorf("[%v]did not expect error but got: %v", i, err)
}
if v != tc.expectVal {
t.Errorf("Got %v but expected %v", v, tc.expectVal)
}
})
}
}
func TestIsOvercommitAllowed(t *testing.T) {
testCases := []struct {
resourceName v1.ResourceName
expectVal bool
}{
{
resourceName: "pod.alpha.kubernetes.io/opaque-int-resource-foo",
expectVal: true,
},
{
resourceName: "kubernetes.io/resource-foo",
expectVal: true,
},
{
resourceName: "hugepages-100m",
expectVal: false,
},
{
resourceName: "",
expectVal: true,
},
}
for _, tc := range testCases {
tc := tc
t.Run(fmt.Sprintf("resourceName input=%s, expected value=%v", tc.resourceName, tc.expectVal), func(t *testing.T) {
t.Parallel()
v := IsOvercommitAllowed(tc.resourceName)
if v != tc.expectVal {
t.Errorf("Got %v but expected %v", v, tc.expectVal)
}
})
}
}
func TestGetAccessModesFromString(t *testing.T) {
modes := GetAccessModesFromString("ROX")
if !ContainsAccessMode(modes, v1.ReadOnlyMany) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadOnlyMany, modes)
}
modes = GetAccessModesFromString("ROX,RWX")
if !ContainsAccessMode(modes, v1.ReadOnlyMany) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadOnlyMany, modes)
}
if !ContainsAccessMode(modes, v1.ReadWriteMany) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadWriteMany, modes)
}
modes = GetAccessModesFromString("RWO,ROX,RWX")
if !ContainsAccessMode(modes, v1.ReadWriteOnce) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadWriteOnce, modes)
}
if !ContainsAccessMode(modes, v1.ReadOnlyMany) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadOnlyMany, modes)
}
if !ContainsAccessMode(modes, v1.ReadWriteMany) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadWriteMany, modes)
}
modes = GetAccessModesFromString("RWO,ROX,RWX,RWOP")
if !ContainsAccessMode(modes, v1.ReadWriteOnce) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadWriteOnce, modes)
}
if !ContainsAccessMode(modes, v1.ReadOnlyMany) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadOnlyMany, modes)
}
if !ContainsAccessMode(modes, v1.ReadWriteMany) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadWriteMany, modes)
}
if !ContainsAccessMode(modes, v1.ReadWriteOncePod) {
t.Errorf("Expected mode %s, but got %+v", v1.ReadWriteOncePod, modes)
}
}
func TestRemoveDuplicateAccessModes(t *testing.T) {
modes := []v1.PersistentVolumeAccessMode{
v1.ReadWriteOnce, v1.ReadOnlyMany, v1.ReadOnlyMany, v1.ReadOnlyMany,
}
modes = removeDuplicateAccessModes(modes)
if len(modes) != 2 {
t.Errorf("Expected 2 distinct modes in set but found %v", len(modes))
}
}
func TestTopologySelectorRequirementsAsSelector(t *testing.T) {
mustParse := func(s string) labels.Selector {
out, e := labels.Parse(s)
if e != nil {
panic(e)
}
return out
}
tc := []struct {
in []v1.TopologySelectorLabelRequirement
out labels.Selector
expectErr bool
}{
{in: nil, out: labels.Nothing()},
{in: []v1.TopologySelectorLabelRequirement{}, out: labels.Nothing()},
{
in: []v1.TopologySelectorLabelRequirement{{
Key: "foo",
Values: []string{"bar", "baz"},
}},
out: mustParse("foo in (baz,bar)"),
},
{
in: []v1.TopologySelectorLabelRequirement{{
Key: "foo",
Values: []string{},
}},
expectErr: true,
},
{
in: []v1.TopologySelectorLabelRequirement{
{
Key: "foo",
Values: []string{"bar", "baz"},
},
{
Key: "invalid",
Values: []string{},
},
},
expectErr: true,
},
{
in: []v1.TopologySelectorLabelRequirement{{
Key: "/invalidkey",
Values: []string{"bar", "baz"},
}},
expectErr: true,
},
}
for i, tc := range tc {
out, err := TopologySelectorRequirementsAsSelector(tc.in)
if err == nil && tc.expectErr {
t.Errorf("[%v]expected error but got none.", i)
}
if err != nil && !tc.expectErr {
t.Errorf("[%v]did not expect error but got: %v", i, err)
}
if !reflect.DeepEqual(out, tc.out) {
t.Errorf("[%v]expected:\n\t%+v\nbut got:\n\t%+v", i, tc.out, out)
}
}
}
func TestMatchTopologySelectorTerms(t *testing.T) {
type args struct {
topologySelectorTerms []v1.TopologySelectorTerm
labels labels.Set
}
tests := []struct {
name string
args args
want bool
}{
{
name: "nil term list",
args: args{
topologySelectorTerms: nil,
labels: nil,
},
want: true,
},
{
name: "nil term",
args: args{
topologySelectorTerms: []v1.TopologySelectorTerm{
{
MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{},
},
},
labels: nil,
},
want: false,
},
{
name: "label matches MatchLabelExpressions terms",
args: args{
topologySelectorTerms: []v1.TopologySelectorTerm{
{
MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{{
Key: "label_1",
Values: []string{"label_1_val"},
}},
},
},
labels: map[string]string{"label_1": "label_1_val"},
},
want: true,
},
{
name: "label does not match MatchLabelExpressions terms",
args: args{
topologySelectorTerms: []v1.TopologySelectorTerm{
{
MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{{
Key: "label_1",
Values: []string{"label_1_val"},
}},
},
},
labels: map[string]string{"label_1": "label_1_val-failed"},
},
want: false,
},
{
name: "multi-values in one requirement, one matched",
args: args{
topologySelectorTerms: []v1.TopologySelectorTerm{
{
MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{{
Key: "label_1",
Values: []string{"label_1_val1", "label_1_val2"},
}},
},
},
labels: map[string]string{"label_1": "label_1_val2"},
},
want: true,
},
{
name: "multi-terms was set, one matched",
args: args{
topologySelectorTerms: []v1.TopologySelectorTerm{
{
MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{{
Key: "label_1",
Values: []string{"label_1_val"},
}},
},
{
MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{{
Key: "label_2",
Values: []string{"label_2_val"},
}},
},
},
labels: map[string]string{
"label_2": "label_2_val",
},
},
want: true,
},
{
name: "multi-requirement in one term, fully matched",
args: args{
topologySelectorTerms: []v1.TopologySelectorTerm{
{
MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{
{
Key: "label_1",
Values: []string{"label_1_val"},
},
{
Key: "label_2",
Values: []string{"label_2_val"},
},
},
},
},
labels: map[string]string{
"label_1": "label_1_val",
"label_2": "label_2_val",
},
},
want: true,
},
{
name: "multi-requirement in one term, partial matched",
args: args{
topologySelectorTerms: []v1.TopologySelectorTerm{
{
MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{
{
Key: "label_1",
Values: []string{"label_1_val"},
},
{
Key: "label_2",
Values: []string{"label_2_val"},
},
},
},
},
labels: map[string]string{
"label_1": "label_1_val-failed",
"label_2": "label_2_val",
},
},
want: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := MatchTopologySelectorTerms(tt.args.topologySelectorTerms, tt.args.labels); got != tt.want {
t.Errorf("MatchTopologySelectorTermsORed() = %v, want %v", got, tt.want)
}
})
}
}
func TestNodeSelectorRequirementKeyExistsInNodeSelectorTerms(t *testing.T) {
tests := []struct {
name string
reqs []v1.NodeSelectorRequirement
terms []v1.NodeSelectorTerm
exists bool
}{
{
name: "empty set of keys in empty set of terms",
reqs: []v1.NodeSelectorRequirement{},
terms: []v1.NodeSelectorTerm{},
exists: false,
},
{
name: "key existence in terms with all keys specified",
reqs: []v1.NodeSelectorRequirement{
{
Key: "key1",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value1"},
},
{
Key: "key2",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value2"},
},
},
terms: []v1.NodeSelectorTerm{
{
MatchExpressions: []v1.NodeSelectorRequirement{
{
Key: "key2",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value2"},
},
{
Key: "key3",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value3"},
},
},
},
{
MatchExpressions: []v1.NodeSelectorRequirement{
{
Key: "key1",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value11, test-value12"},
},
{
Key: "key4",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value41, test-value42"},
},
},
},
},
exists: true,
},
{
name: "key existence in terms with one of the keys specfied",
reqs: []v1.NodeSelectorRequirement{
{
Key: "key1",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value1"},
},
{
Key: "key2",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value2"},
},
{
Key: "key3",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value3"},
},
{
Key: "key6",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value6"},
},
},
terms: []v1.NodeSelectorTerm{
{
MatchExpressions: []v1.NodeSelectorRequirement{
{
Key: "key2",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value2"},
}, {
Key: "key4",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value4"},
},
},
},
{
MatchExpressions: []v1.NodeSelectorRequirement{
{
Key: "key5",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value5"},
},
},
},
},
exists: true,
},
{
name: "key existence in terms without any of the keys specified",
reqs: []v1.NodeSelectorRequirement{
{
Key: "key2",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value2"},
},
{
Key: "key3",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value3"},
},
},
terms: []v1.NodeSelectorTerm{
{
MatchExpressions: []v1.NodeSelectorRequirement{
{
Key: "key4",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value"},
},
{
Key: "key5",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value"},
},
},
},
{
MatchExpressions: []v1.NodeSelectorRequirement{
{
Key: "key6",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value"},
},
},
},
{
MatchExpressions: []v1.NodeSelectorRequirement{
{
Key: "key7",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value"},
},
{
Key: "key8",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value"},
},
},
},
},
exists: false,
},
{
name: "key existence in empty set of terms",
reqs: []v1.NodeSelectorRequirement{
{
Key: "key2",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value2"},
},
{
Key: "key3",
Operator: v1.NodeSelectorOpIn,
Values: []string{"test-value3"},
},
},
terms: []v1.NodeSelectorTerm{},
exists: false,
},
}
for _, test := range tests {
keyExists := NodeSelectorRequirementKeysExistInNodeSelectorTerms(test.reqs, test.terms)
if test.exists != keyExists {
t.Errorf("test %s failed. Expected %v but got %v", test.name, test.exists, keyExists)
}
}
}
func TestHugePageUnitSizeFromByteSize(t *testing.T) {
tests := []struct {
size int64
expected string
wantErr bool
}{
{
size: 1024,
expected: "1KB",
wantErr: false,
},
{
size: 33554432,
expected: "32MB",
wantErr: false,
},
{
size: 3221225472,
expected: "3GB",
wantErr: false,
},
{
size: 1024 * 1024 * 1023 * 3,
expected: "3069MB",
wantErr: true,
},
}
for _, test := range tests {
size := test.size
result, err := HugePageUnitSizeFromByteSize(size)
if err != nil {
if test.wantErr {
t.Logf("HugePageUnitSizeFromByteSize() expected error = %v", err)
} else {
t.Errorf("HugePageUnitSizeFromByteSize() error = %v, wantErr %v", err, test.wantErr)
}
continue
}
if test.expected != result {
t.Errorf("HugePageUnitSizeFromByteSize() expected %v but got %v", test.expected, result)
}
}
}
func TestLoadBalancerStatusEqual(t *testing.T) {
testCases := []struct {
left *v1.LoadBalancerStatus
right *v1.LoadBalancerStatus
name string
expectVal bool
}{{
name: "left equals right",
left: &v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{{
IP: "1.1.1.1",
Hostname: "host1",
}},
},
right: &v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{{
IP: "1.1.1.1",
Hostname: "host1",
}},
},
expectVal: true,
}, {
name: "length of LoadBalancerIngress slice is not equal",
left: &v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{{
IP: "1.1.1.1",
Hostname: "host1",
}, {
IP: "1.1.1.2",
Hostname: "host1",
}},
},
right: &v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{{
IP: "1.1.1.1",
Hostname: "host1",
}},
},
expectVal: false,
}, {
name: "LoadBalancerIngress ip is not equal",
left: &v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{{
IP: "1.1.1.2",
Hostname: "host1",
}},
},
right: &v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{{
IP: "1.1.1.1",
Hostname: "host1",
}},
},
expectVal: false,
}, {
name: "LoadBalancerIngress hostname is not equal",
left: &v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{{
IP: "1.1.1.1",
Hostname: "host2",
}},
},
right: &v1.LoadBalancerStatus{
Ingress: []v1.LoadBalancerIngress{{
IP: "1.1.1.1",
Hostname: "host1",
}},
},
expectVal: false,
}}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
v := LoadBalancerStatusEqual(tc.left, tc.right)
if v != tc.expectVal {
t.Errorf("test %s failed. left input=%v, right input=%v, Got %v but expected %v",
tc.name, tc.left, tc.right, v, tc.expectVal)
}
})
}
}
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