mirror of https://github.com/k3s-io/k3s
308 lines
8.5 KiB
Go
308 lines
8.5 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 util
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import (
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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"syscall"
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"testing"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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"k8s.io/apimachinery/pkg/api/errors"
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"k8s.io/apimachinery/pkg/api/meta"
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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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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/kubernetes/pkg/api/testapi"
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apitesting "k8s.io/kubernetes/pkg/api/testing"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/utils/exec"
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)
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func TestMerge(t *testing.T) {
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grace := int64(30)
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tests := []struct {
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obj runtime.Object
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fragment 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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Name: "foo",
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},
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},
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fragment: fmt.Sprintf(`{ "apiVersion": "%s" }`, "v1"),
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "foo",
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},
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Spec: apitesting.DeepEqualSafePodSpec(),
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},
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},
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/* TODO: uncomment this test once Merge is updated to use
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strategic-merge-patch. See #8449.
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{
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obj: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "foo",
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},
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Spec: api.PodSpec{
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Containers: []api.Container{
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api.Container{
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Name: "c1",
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Image: "red-image",
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},
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api.Container{
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Name: "c2",
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Image: "blue-image",
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},
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},
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},
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},
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fragment: fmt.Sprintf(`{ "apiVersion": "%s", "spec": { "containers": [ { "name": "c1", "image": "green-image" } ] } }`, schema.GroupVersion{Group:"", Version: "v1"}.String()),
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "foo",
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},
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Spec: api.PodSpec{
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Containers: []api.Container{
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api.Container{
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Name: "c1",
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Image: "green-image",
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},
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api.Container{
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Name: "c2",
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Image: "blue-image",
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},
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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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Name: "foo",
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},
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},
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fragment: fmt.Sprintf(`{ "apiVersion": "%s", "spec": { "volumes": [ {"name": "v1"}, {"name": "v2"} ] } }`, "v1"),
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expected: &api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "foo",
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},
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Spec: api.PodSpec{
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Volumes: []api.Volume{
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{
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Name: "v1",
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VolumeSource: api.VolumeSource{EmptyDir: &api.EmptyDirVolumeSource{}},
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},
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{
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Name: "v2",
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VolumeSource: api.VolumeSource{EmptyDir: &api.EmptyDirVolumeSource{}},
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},
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},
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RestartPolicy: api.RestartPolicyAlways,
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DNSPolicy: api.DNSClusterFirst,
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TerminationGracePeriodSeconds: &grace,
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SecurityContext: &api.PodSecurityContext{},
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SchedulerName: api.DefaultSchedulerName,
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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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fragment: "invalid json",
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expected: &api.Pod{},
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expectErr: true,
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},
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{
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obj: &api.Service{},
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fragment: `{ "apiVersion": "badVersion" }`,
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expectErr: true,
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},
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{
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obj: &api.Service{
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Spec: api.ServiceSpec{},
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},
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fragment: fmt.Sprintf(`{ "apiVersion": "%s", "spec": { "ports": [ { "port": 0 } ] } }`, "v1"),
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expected: &api.Service{
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Spec: api.ServiceSpec{
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SessionAffinity: "None",
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Type: api.ServiceTypeClusterIP,
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Ports: []api.ServicePort{
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{
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Protocol: api.ProtocolTCP,
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Port: 0,
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},
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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.Service{
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Spec: api.ServiceSpec{
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Selector: map[string]string{
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"version": "v1",
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},
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},
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},
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fragment: fmt.Sprintf(`{ "apiVersion": "%s", "spec": { "selector": { "version": "v2" } } }`, "v1"),
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expected: &api.Service{
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Spec: api.ServiceSpec{
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SessionAffinity: "None",
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Type: api.ServiceTypeClusterIP,
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Selector: map[string]string{
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"version": "v2",
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},
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},
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},
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},
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}
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for i, test := range tests {
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out, err := Merge(testapi.Default.Codec(), test.obj, test.fragment)
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if !test.expectErr {
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if err != nil {
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t.Errorf("testcase[%d], unexpected error: %v", i, err)
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} else if !apiequality.Semantic.DeepEqual(out, test.expected) {
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t.Errorf("\n\ntestcase[%d]\nexpected:\n%+v\nsaw:\n%+v", i, test.expected, out)
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}
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}
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if test.expectErr && err == nil {
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t.Errorf("testcase[%d], unexpected non-error", i)
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}
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}
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}
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type checkErrTestCase struct {
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err error
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expectedErr string
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expectedCode int
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}
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func TestCheckInvalidErr(t *testing.T) {
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testCheckError(t, []checkErrTestCase{
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{
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errors.NewInvalid(api.Kind("Invalid1"), "invalidation", field.ErrorList{field.Invalid(field.NewPath("field"), "single", "details")}),
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"The Invalid1 \"invalidation\" is invalid: field: Invalid value: \"single\": details\n",
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DefaultErrorExitCode,
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},
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{
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errors.NewInvalid(api.Kind("Invalid2"), "invalidation", field.ErrorList{field.Invalid(field.NewPath("field1"), "multi1", "details"), field.Invalid(field.NewPath("field2"), "multi2", "details")}),
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"The Invalid2 \"invalidation\" is invalid: \n* field1: Invalid value: \"multi1\": details\n* field2: Invalid value: \"multi2\": details\n",
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DefaultErrorExitCode,
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},
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{
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errors.NewInvalid(api.Kind("Invalid3"), "invalidation", field.ErrorList{}),
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"The Invalid3 \"invalidation\" is invalid",
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DefaultErrorExitCode,
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},
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{
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errors.NewInvalid(api.Kind("Invalid4"), "invalidation", field.ErrorList{field.Invalid(field.NewPath("field4"), "multi4", "details"), field.Invalid(field.NewPath("field4"), "multi4", "details")}),
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"The Invalid4 \"invalidation\" is invalid: field4: Invalid value: \"multi4\": details\n",
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DefaultErrorExitCode,
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},
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})
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}
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func TestCheckNoResourceMatchError(t *testing.T) {
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testCheckError(t, []checkErrTestCase{
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{
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&meta.NoResourceMatchError{PartialResource: schema.GroupVersionResource{Resource: "foo"}},
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`the server doesn't have a resource type "foo"`,
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DefaultErrorExitCode,
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},
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{
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&meta.NoResourceMatchError{PartialResource: schema.GroupVersionResource{Version: "theversion", Resource: "foo"}},
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`the server doesn't have a resource type "foo" in version "theversion"`,
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DefaultErrorExitCode,
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},
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{
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&meta.NoResourceMatchError{PartialResource: schema.GroupVersionResource{Group: "thegroup", Version: "theversion", Resource: "foo"}},
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`the server doesn't have a resource type "foo" in group "thegroup" and version "theversion"`,
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DefaultErrorExitCode,
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},
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{
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&meta.NoResourceMatchError{PartialResource: schema.GroupVersionResource{Group: "thegroup", Resource: "foo"}},
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`the server doesn't have a resource type "foo" in group "thegroup"`,
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DefaultErrorExitCode,
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},
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})
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}
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func TestCheckExitError(t *testing.T) {
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testCheckError(t, []checkErrTestCase{
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{
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exec.CodeExitError{Err: fmt.Errorf("pod foo/bar terminated"), Code: 42},
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"pod foo/bar terminated",
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42,
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},
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})
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}
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func testCheckError(t *testing.T, tests []checkErrTestCase) {
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var errReturned string
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var codeReturned int
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errHandle := func(err string, code int) {
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errReturned = err
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codeReturned = code
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}
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for _, test := range tests {
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checkErr(test.err, errHandle)
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if errReturned != test.expectedErr {
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t.Fatalf("Got: %s, expected: %s", errReturned, test.expectedErr)
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}
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if codeReturned != test.expectedCode {
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t.Fatalf("Got: %d, expected: %d", codeReturned, test.expectedCode)
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}
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}
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}
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func TestDumpReaderToFile(t *testing.T) {
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testString := "TEST STRING"
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tempFile, err := ioutil.TempFile("", "hlpers_test_dump_")
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if err != nil {
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t.Errorf("unexpected error setting up a temporary file %v", err)
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}
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defer syscall.Unlink(tempFile.Name())
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defer tempFile.Close()
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defer func() {
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if !t.Failed() {
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os.Remove(tempFile.Name())
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}
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}()
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err = DumpReaderToFile(strings.NewReader(testString), tempFile.Name())
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if err != nil {
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t.Errorf("error in DumpReaderToFile: %v", err)
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}
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data, err := ioutil.ReadFile(tempFile.Name())
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if err != nil {
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t.Errorf("error when reading %s: %v", tempFile.Name(), err)
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}
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stringData := string(data)
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if stringData != testString {
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t.Fatalf("Wrong file content %s != %s", testString, stringData)
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}
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}
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