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571adf6e84
* Improved FormatMap Improves performance by about 4x, or nearly 2x in the worst case old FormatMap BenchmarkFormatMap-12 873046 1238 ns/op 384 B/op 13 allocs/op new FormatMap BenchmarkFormatMap-12 3665762 327.0 ns/op 152 B/op 3 allocs/op Signed-off-by: aimuz <mr.imuz@gmail.com> * fixed Signed-off-by: aimuz <mr.imuz@gmail.com> * fixed Signed-off-by: aimuz <mr.imuz@gmail.com> * test: fix test Signed-off-by: aimuz <mr.imuz@gmail.com> --------- Signed-off-by: aimuz <mr.imuz@gmail.com>
364 lines
10 KiB
Go
364 lines
10 KiB
Go
/*
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Copyright 2015 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 fieldpath
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import (
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"strings"
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"testing"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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func BenchmarkFormatMap(b *testing.B) {
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var s string
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m := map[string]string{
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"spec.pod.beta.kubernetes.io/statefulset-index": "1",
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"Www.k8s.io/test": "1",
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"foo": "bar",
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"flannel.alpha.coreos.com/backend-data": `{"VNI":1,"VtepMAC":"ce:f9:c7:a4:de:64"}`,
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"flannel.alpha.coreos.com/backend-type": "vxlan",
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"flannel.alpha.coreos.com/kube-subnet-manager": "true",
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"flannel.alpha.coreos.com/public-ip": "192.168.19.160",
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"management.cattle.io/pod-limits": `{"cpu":"11400m","memory":"7965Mi"}`,
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"management.cattle.io/pod-requests": `{"cpu":"2482m","memory":"7984Mi","pods":"26"}`,
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"node.alpha.kubernetes.io/ttl": "0",
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"volumes.kubernetes.io/controller-managed-attach-detach": "true",
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}
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b.ReportAllocs()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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s = FormatMap(m)
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}
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// Avoid compiler optimizations
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_ = s
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}
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func TestExtractFieldPathAsString(t *testing.T) {
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cases := []struct {
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name string
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fieldPath string
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obj interface{}
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expectedValue string
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expectedMessageFragment string
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}{
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{
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name: "not an API object",
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fieldPath: "metadata.name",
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obj: "",
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expectedMessageFragment: "object does not implement the Object interfaces",
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},
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{
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name: "ok - namespace",
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fieldPath: "metadata.namespace",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "object-namespace",
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},
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},
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expectedValue: "object-namespace",
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},
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{
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name: "ok - name",
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fieldPath: "metadata.name",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "object-name",
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},
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},
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expectedValue: "object-name",
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},
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{
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name: "ok - labels",
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fieldPath: "metadata.labels",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"key": "value"},
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},
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},
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expectedValue: "key=\"value\"",
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},
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{
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name: "ok - labels bslash n",
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fieldPath: "metadata.labels",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"key": "value\n"},
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},
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},
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expectedValue: "key=\"value\\n\"",
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},
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{
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name: "ok - annotations",
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fieldPath: "metadata.annotations",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{"builder": "john-doe"},
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},
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},
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expectedValue: "builder=\"john-doe\"",
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},
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{
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name: "ok - annotation",
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fieldPath: "metadata.annotations['spec.pod.beta.kubernetes.io/statefulset-index']",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{"spec.pod.beta.kubernetes.io/statefulset-index": "1"},
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},
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},
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expectedValue: "1",
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},
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{
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name: "ok - annotation",
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fieldPath: "metadata.annotations['Www.k8s.io/test']",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{"Www.k8s.io/test": "1"},
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},
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},
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expectedValue: "1",
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},
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{
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name: "ok - uid",
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fieldPath: "metadata.uid",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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UID: "b70b3269-858e-12a8-9cf2-1232a194038a",
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},
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},
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expectedValue: "b70b3269-858e-12a8-9cf2-1232a194038a",
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},
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{
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name: "ok - label",
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fieldPath: "metadata.labels['something']",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{
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"something": "label value",
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},
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},
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},
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expectedValue: "label value",
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},
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{
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name: "invalid expression",
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fieldPath: "metadata.whoops",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "object-namespace",
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},
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},
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expectedMessageFragment: "unsupported fieldPath",
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},
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{
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name: "invalid annotation key",
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fieldPath: "metadata.annotations['invalid~key']",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{"foo": "bar"},
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},
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},
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expectedMessageFragment: "invalid key subscript in metadata.annotations",
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},
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{
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name: "invalid label key",
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fieldPath: "metadata.labels['Www.k8s.io/test']",
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obj: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Annotations: map[string]string{"foo": "bar"},
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},
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},
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expectedMessageFragment: "invalid key subscript in metadata.labels",
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},
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{
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name: "invalid subscript",
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fieldPath: "metadata.notexisting['something']",
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obj: &v1.Pod{},
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expectedMessageFragment: "fieldPath \"metadata.notexisting['something']\" does not support subscript",
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},
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}
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for _, tc := range cases {
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actual, err := ExtractFieldPathAsString(tc.obj, tc.fieldPath)
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if err != nil {
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if tc.expectedMessageFragment != "" {
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if !strings.Contains(err.Error(), tc.expectedMessageFragment) {
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t.Errorf("%v: unexpected error message: %q, expected to contain %q", tc.name, err, tc.expectedMessageFragment)
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}
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} else {
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t.Errorf("%v: unexpected error: %v", tc.name, err)
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}
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} else if tc.expectedMessageFragment != "" {
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t.Errorf("%v: expected error: %v", tc.name, tc.expectedMessageFragment)
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} else if e := tc.expectedValue; e != "" && e != actual {
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t.Errorf("%v: unexpected result; got %q, expected %q", tc.name, actual, e)
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}
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}
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}
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func TestSplitMaybeSubscriptedPath(t *testing.T) {
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cases := []struct {
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fieldPath string
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expectedPath string
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expectedSubscript string
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expectedOK bool
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}{
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{
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fieldPath: "metadata.annotations['key']",
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expectedPath: "metadata.annotations",
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expectedSubscript: "key",
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expectedOK: true,
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},
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{
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fieldPath: "metadata.annotations['a[b']c']",
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expectedPath: "metadata.annotations",
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expectedSubscript: "a[b']c",
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expectedOK: true,
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},
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{
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fieldPath: "metadata.labels['['key']",
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expectedPath: "metadata.labels",
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expectedSubscript: "['key",
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expectedOK: true,
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},
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{
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fieldPath: "metadata.labels['key']']",
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expectedPath: "metadata.labels",
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expectedSubscript: "key']",
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expectedOK: true,
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},
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{
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fieldPath: "metadata.labels['']",
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expectedPath: "metadata.labels",
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expectedSubscript: "",
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expectedOK: true,
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},
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{
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fieldPath: "metadata.labels[' ']",
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expectedPath: "metadata.labels",
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expectedSubscript: " ",
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expectedOK: true,
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},
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{
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fieldPath: "metadata.labels[ 'key' ]",
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expectedOK: false,
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},
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{
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fieldPath: "metadata.labels[]",
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expectedOK: false,
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},
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{
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fieldPath: "metadata.labels[']",
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expectedOK: false,
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},
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{
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fieldPath: "metadata.labels['key']foo",
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expectedOK: false,
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},
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{
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fieldPath: "['key']",
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expectedOK: false,
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},
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{
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fieldPath: "metadata.labels",
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expectedOK: false,
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},
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}
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for _, tc := range cases {
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path, subscript, ok := SplitMaybeSubscriptedPath(tc.fieldPath)
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if !ok {
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if tc.expectedOK {
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t.Errorf("SplitMaybeSubscriptedPath(%q) expected to return (_, _, true)", tc.fieldPath)
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}
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continue
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}
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if path != tc.expectedPath || subscript != tc.expectedSubscript {
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t.Errorf("SplitMaybeSubscriptedPath(%q) = (%q, %q, true), expect (%q, %q, true)",
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tc.fieldPath, path, subscript, tc.expectedPath, tc.expectedSubscript)
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}
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}
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}
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// TestFormatMap
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func TestFormatMap(t *testing.T) {
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type args struct {
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m map[string]string
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}
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tests := []struct {
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name string
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args args
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wantFmtStr string
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}{
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{
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name: "nil",
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args: args{
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m: nil,
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},
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wantFmtStr: "",
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},
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{
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name: "label",
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args: args{
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m: map[string]string{
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"beta.kubernetes.io/os": "linux",
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"kubernetes.io/arch": "amd64",
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"kubernetes.io/hostname": "master01",
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"kubernetes.io/os": "linux",
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"node-role.kubernetes.io/control-plane": "true",
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"node-role.kubernetes.io/master": "true",
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},
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},
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wantFmtStr: `beta.kubernetes.io/os="linux"
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kubernetes.io/arch="amd64"
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kubernetes.io/hostname="master01"
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kubernetes.io/os="linux"
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node-role.kubernetes.io/control-plane="true"
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node-role.kubernetes.io/master="true"`,
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},
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{
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name: "annotation",
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args: args{
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m: map[string]string{
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"flannel.alpha.coreos.com/backend-data": `{"VNI":1,"VtepMAC":"ce:f9:c7:a4:de:64"}`,
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"flannel.alpha.coreos.com/backend-type": "vxlan",
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"flannel.alpha.coreos.com/kube-subnet-manager": "true",
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"flannel.alpha.coreos.com/public-ip": "192.168.19.160",
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"management.cattle.io/pod-limits": `{"cpu":"11400m","memory":"7965Mi"}`,
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"management.cattle.io/pod-requests": `{"cpu":"2482m","memory":"7984Mi","pods":"26"}`,
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"node.alpha.kubernetes.io/ttl": "0",
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"volumes.kubernetes.io/controller-managed-attach-detach": "true",
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},
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},
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wantFmtStr: `flannel.alpha.coreos.com/backend-data="{\"VNI\":1,\"VtepMAC\":\"ce:f9:c7:a4:de:64\"}"
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flannel.alpha.coreos.com/backend-type="vxlan"
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flannel.alpha.coreos.com/kube-subnet-manager="true"
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flannel.alpha.coreos.com/public-ip="192.168.19.160"
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management.cattle.io/pod-limits="{\"cpu\":\"11400m\",\"memory\":\"7965Mi\"}"
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management.cattle.io/pod-requests="{\"cpu\":\"2482m\",\"memory\":\"7984Mi\",\"pods\":\"26\"}"
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node.alpha.kubernetes.io/ttl="0"
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volumes.kubernetes.io/controller-managed-attach-detach="true"`,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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if gotFmtStr := FormatMap(tt.args.m); gotFmtStr != tt.wantFmtStr {
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t.Errorf("FormatMap() = %v, want %v", gotFmtStr, tt.wantFmtStr)
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}
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})
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}
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}
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