483 lines
12 KiB
Go
483 lines
12 KiB
Go
/*
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Copyright 2014 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 cmd
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import (
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"bytes"
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"net/http"
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"reflect"
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"strings"
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"testing"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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restclient "k8s.io/client-go/rest"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/client/restclient/fake"
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cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
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"k8s.io/kubernetes/pkg/kubectl/resource"
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)
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func TestValidateLabels(t *testing.T) {
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tests := []struct {
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meta *metav1.ObjectMeta
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labels map[string]string
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expectErr bool
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test string
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}{
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{
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meta: &metav1.ObjectMeta{
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Labels: map[string]string{
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"a": "b",
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"c": "d",
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},
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},
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labels: map[string]string{
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"a": "c",
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"d": "b",
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},
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test: "one shared",
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expectErr: true,
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},
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{
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meta: &metav1.ObjectMeta{
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Labels: map[string]string{
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"a": "b",
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"c": "d",
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},
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},
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labels: map[string]string{
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"b": "d",
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"c": "a",
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},
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test: "second shared",
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expectErr: true,
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},
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{
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meta: &metav1.ObjectMeta{
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Labels: map[string]string{
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"a": "b",
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"c": "d",
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},
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},
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labels: map[string]string{
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"b": "a",
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"d": "c",
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},
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test: "no overlap",
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},
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{
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meta: &metav1.ObjectMeta{},
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labels: map[string]string{
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"b": "a",
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"d": "c",
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},
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test: "no labels",
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},
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}
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for _, test := range tests {
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err := validateNoOverwrites(test.meta, test.labels)
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if test.expectErr && err == nil {
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t.Errorf("%s: unexpected non-error", test.test)
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}
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if !test.expectErr && err != nil {
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t.Errorf("%s: unexpected error: %v", test.test, err)
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}
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}
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}
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func TestParseLabels(t *testing.T) {
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tests := []struct {
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labels []string
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expected map[string]string
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expectedRemove []string
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expectErr bool
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}{
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{
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labels: []string{"a=b", "c=d"},
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expected: map[string]string{"a": "b", "c": "d"},
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},
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{
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labels: []string{},
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expected: map[string]string{},
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},
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{
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labels: []string{"a=b", "c=d", "e-"},
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expected: map[string]string{"a": "b", "c": "d"},
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expectedRemove: []string{"e"},
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},
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{
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labels: []string{"ab", "c=d"},
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expectErr: true,
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},
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{
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labels: []string{"a=b", "c=d", "a-"},
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expectErr: true,
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},
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{
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labels: []string{"a="},
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expected: map[string]string{"a": ""},
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},
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{
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labels: []string{"a=%^$"},
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expectErr: true,
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},
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}
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for _, test := range tests {
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labels, remove, err := parseLabels(test.labels)
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if test.expectErr && err == nil {
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t.Errorf("unexpected non-error: %v", test)
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}
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if !test.expectErr && err != nil {
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t.Errorf("unexpected error: %v %v", err, test)
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}
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if !reflect.DeepEqual(labels, test.expected) {
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t.Errorf("expected: %v, got %v", test.expected, labels)
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}
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if !reflect.DeepEqual(remove, test.expectedRemove) {
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t.Errorf("expected: %v, got %v", test.expectedRemove, remove)
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}
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}
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}
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func TestLabelFunc(t *testing.T) {
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tests := []struct {
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obj runtime.Object
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overwrite bool
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version string
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labels map[string]string
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remove []string
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expected runtime.Object
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expectErr bool
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}{
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{
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obj: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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},
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},
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labels: map[string]string{"a": "b"},
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expectErr: true,
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},
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{
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obj: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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},
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},
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labels: map[string]string{"a": "c"},
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overwrite: true,
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "c"},
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},
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},
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},
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{
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obj: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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},
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},
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labels: map[string]string{"c": "d"},
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b", "c": "d"},
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},
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},
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},
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{
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obj: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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},
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},
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labels: map[string]string{"c": "d"},
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version: "2",
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b", "c": "d"},
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ResourceVersion: "2",
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},
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},
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},
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{
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obj: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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},
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},
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labels: map[string]string{},
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remove: []string{"a"},
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{},
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},
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},
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},
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{
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obj: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b", "c": "d"},
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},
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},
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labels: map[string]string{"e": "f"},
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remove: []string{"a"},
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{
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"c": "d",
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"e": "f",
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},
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},
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},
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},
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{
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obj: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{},
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},
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labels: map[string]string{"a": "b"},
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"a": "b"},
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},
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},
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},
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}
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for _, test := range tests {
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err := labelFunc(test.obj, test.overwrite, test.version, test.labels, test.remove)
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if test.expectErr {
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if err == nil {
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t.Errorf("unexpected non-error: %v", test)
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}
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continue
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}
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if !test.expectErr && err != nil {
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t.Errorf("unexpected error: %v %v", err, test)
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}
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if !reflect.DeepEqual(test.obj, test.expected) {
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t.Errorf("expected: %v, got %v", test.expected, test.obj)
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}
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}
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}
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func TestLabelErrors(t *testing.T) {
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testCases := map[string]struct {
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args []string
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flags map[string]string
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errFn func(error) bool
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}{
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"no args": {
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args: []string{},
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errFn: func(err error) bool { return strings.Contains(err.Error(), "one or more resources must be specified") },
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},
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"not enough labels": {
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args: []string{"pods"},
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errFn: func(err error) bool { return strings.Contains(err.Error(), "at least one label update is required") },
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},
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"no resources": {
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args: []string{"pods-"},
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errFn: func(err error) bool { return strings.Contains(err.Error(), "one or more resources must be specified") },
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},
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"no resources 2": {
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args: []string{"pods=bar"},
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errFn: func(err error) bool { return strings.Contains(err.Error(), "one or more resources must be specified") },
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},
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"resources but no selectors": {
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args: []string{"pods", "app=bar"},
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errFn: func(err error) bool {
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return strings.Contains(err.Error(), "resource(s) were provided, but no name, label selector, or --all flag specified")
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},
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},
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"multiple resources but no selectors": {
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args: []string{"pods,deployments", "app=bar"},
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errFn: func(err error) bool {
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return strings.Contains(err.Error(), "resource(s) were provided, but no name, label selector, or --all flag specified")
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},
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},
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}
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for k, testCase := range testCases {
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f, tf, _, _ := cmdtesting.NewAPIFactory()
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tf.Printer = &testPrinter{}
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tf.Namespace = "test"
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tf.ClientConfig = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &api.Registry.GroupOrDie(api.GroupName).GroupVersion}}
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdLabel(f, buf)
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cmd.SetOutput(buf)
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for k, v := range testCase.flags {
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cmd.Flags().Set(k, v)
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}
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opts := LabelOptions{}
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err := opts.Complete(f, buf, cmd, testCase.args)
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if err == nil {
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err = opts.Validate()
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}
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if err == nil {
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err = opts.RunLabel(f, cmd)
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}
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if !testCase.errFn(err) {
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t.Errorf("%s: unexpected error: %v", k, err)
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continue
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}
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if tf.Printer.(*testPrinter).Objects != nil {
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t.Errorf("unexpected print to default printer")
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}
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if buf.Len() > 0 {
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t.Errorf("buffer should be empty: %s", string(buf.Bytes()))
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}
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}
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}
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func TestLabelForResourceFromFile(t *testing.T) {
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pods, _, _ := testData()
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f, tf, codec, ns := cmdtesting.NewAPIFactory()
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch req.Method {
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case "GET":
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switch req.URL.Path {
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case "/namespaces/test/replicationcontrollers/cassandra":
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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case "PATCH":
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switch req.URL.Path {
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case "/namespaces/test/replicationcontrollers/cassandra":
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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default:
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t.Fatalf("unexpected request: %s %#v\n%#v", req.Method, req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.Namespace = "test"
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tf.ClientConfig = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &api.Registry.GroupOrDie(api.GroupName).GroupVersion}}
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdLabel(f, buf)
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opts := LabelOptions{FilenameOptions: resource.FilenameOptions{
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Filenames: []string{"../../../examples/storage/cassandra/cassandra-controller.yaml"}}}
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err := opts.Complete(f, buf, cmd, []string{"a=b"})
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if err == nil {
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err = opts.Validate()
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}
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if err == nil {
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err = opts.RunLabel(f, cmd)
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}
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if !strings.Contains(buf.String(), "labeled") {
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t.Errorf("did not set labels: %s", buf.String())
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}
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}
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func TestLabelLocal(t *testing.T) {
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f, tf, _, ns := cmdtesting.NewAPIFactory()
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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t.Fatalf("unexpected request: %s %#v\n%#v", req.Method, req.URL, req)
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return nil, nil
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}),
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}
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tf.Namespace = "test"
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tf.ClientConfig = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &api.Registry.GroupOrDie(api.GroupName).GroupVersion}}
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdLabel(f, buf)
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cmd.Flags().Set("local", "true")
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opts := LabelOptions{FilenameOptions: resource.FilenameOptions{
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Filenames: []string{"../../../examples/storage/cassandra/cassandra-controller.yaml"}}}
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err := opts.Complete(f, buf, cmd, []string{"a=b"})
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if err == nil {
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err = opts.Validate()
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}
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if err == nil {
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err = opts.RunLabel(f, cmd)
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}
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if !strings.Contains(buf.String(), "labeled") {
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t.Errorf("did not set labels: %s", buf.String())
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}
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}
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func TestLabelMultipleObjects(t *testing.T) {
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pods, _, _ := testData()
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f, tf, codec, ns := cmdtesting.NewAPIFactory()
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tf.Client = &fake.RESTClient{
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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switch req.Method {
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case "GET":
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switch req.URL.Path {
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case "/namespaces/test/pods":
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, pods)}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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case "PATCH":
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switch req.URL.Path {
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case "/namespaces/test/pods/foo":
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[0])}, nil
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case "/namespaces/test/pods/bar":
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &pods.Items[1])}, nil
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default:
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t.Fatalf("unexpected request: %#v\n%#v", req.URL, req)
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return nil, nil
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}
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default:
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t.Fatalf("unexpected request: %s %#v\n%#v", req.Method, req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.Namespace = "test"
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tf.ClientConfig = &restclient.Config{ContentConfig: restclient.ContentConfig{GroupVersion: &api.Registry.GroupOrDie(api.GroupName).GroupVersion}}
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buf := bytes.NewBuffer([]byte{})
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cmd := NewCmdLabel(f, buf)
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cmd.Flags().Set("all", "true")
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opts := LabelOptions{}
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err := opts.Complete(f, buf, cmd, []string{"pods", "a=b"})
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if err == nil {
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err = opts.Validate()
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}
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if err == nil {
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err = opts.RunLabel(f, cmd)
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}
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if strings.Count(buf.String(), "labeled") != len(pods.Items) {
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t.Errorf("not all labels are set: %s", buf.String())
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}
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}
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