mirror of https://github.com/k3s-io/k3s
360 lines
8.8 KiB
Go
360 lines
8.8 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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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 controller
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"reflect"
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"testing"
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"time"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/errors"
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_ "github.com/GoogleCloudPlatform/kubernetes/pkg/api/v1beta1"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/registry/registrytest"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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)
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func TestListControllersError(t *testing.T) {
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mockRegistry := registrytest.ControllerRegistry{
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Err: fmt.Errorf("test error"),
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}
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storage := REST{
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registry: &mockRegistry,
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}
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controllers, err := storage.List(nil)
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if err != mockRegistry.Err {
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t.Errorf("Expected %#v, Got %#v", mockRegistry.Err, err)
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}
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if controllers != nil {
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t.Errorf("Unexpected non-nil ctrl list: %#v", controllers)
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}
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}
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func TestListEmptyControllerList(t *testing.T) {
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mockRegistry := registrytest.ControllerRegistry{nil, &api.ReplicationControllerList{JSONBase: api.JSONBase{ResourceVersion: 1}}}
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storage := REST{
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registry: &mockRegistry,
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}
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controllers, err := storage.List(labels.Everything())
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if len(controllers.(*api.ReplicationControllerList).Items) != 0 {
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t.Errorf("Unexpected non-zero ctrl list: %#v", controllers)
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}
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if controllers.(*api.ReplicationControllerList).ResourceVersion != 1 {
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t.Errorf("Unexpected resource version: %#v", controllers)
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}
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}
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func TestListControllerList(t *testing.T) {
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mockRegistry := registrytest.ControllerRegistry{
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Controllers: &api.ReplicationControllerList{
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Items: []api.ReplicationController{
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{
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JSONBase: api.JSONBase{
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ID: "foo",
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},
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},
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{
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JSONBase: api.JSONBase{
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ID: "bar",
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},
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},
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},
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},
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}
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storage := REST{
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registry: &mockRegistry,
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}
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controllersObj, err := storage.List(labels.Everything())
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controllers := controllersObj.(*api.ReplicationControllerList)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if len(controllers.Items) != 2 {
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t.Errorf("Unexpected controller list: %#v", controllers)
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}
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if controllers.Items[0].ID != "foo" {
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t.Errorf("Unexpected controller: %#v", controllers.Items[0])
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}
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if controllers.Items[1].ID != "bar" {
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t.Errorf("Unexpected controller: %#v", controllers.Items[1])
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}
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}
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func TestControllerDecode(t *testing.T) {
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mockRegistry := registrytest.ControllerRegistry{}
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storage := REST{
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registry: &mockRegistry,
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}
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controller := &api.ReplicationController{
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JSONBase: api.JSONBase{
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ID: "foo",
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},
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}
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body, err := latest.Codec.Encode(controller)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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controllerOut := storage.New()
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if err := latest.Codec.DecodeInto(body, controllerOut); err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if !reflect.DeepEqual(controller, controllerOut) {
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t.Errorf("Expected %#v, found %#v", controller, controllerOut)
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}
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}
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func TestControllerParsing(t *testing.T) {
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expectedController := api.ReplicationController{
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JSONBase: api.JSONBase{
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ID: "nginxController",
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},
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DesiredState: api.ReplicationControllerState{
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Replicas: 2,
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ReplicaSelector: map[string]string{
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"name": "nginx",
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},
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PodTemplate: api.PodTemplate{
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DesiredState: api.PodState{
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Manifest: api.ContainerManifest{
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Containers: []api.Container{
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{
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Image: "dockerfile/nginx",
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Ports: []api.Port{
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{
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ContainerPort: 80,
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HostPort: 8080,
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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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Labels: map[string]string{
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"name": "nginx",
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},
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},
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},
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Labels: map[string]string{
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"name": "nginx",
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},
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}
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file, err := ioutil.TempFile("", "controller")
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fileName := file.Name()
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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data, err := json.Marshal(expectedController)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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_, err = file.Write(data)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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err = file.Close()
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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data, err = ioutil.ReadFile(fileName)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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var controller api.ReplicationController
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err = json.Unmarshal(data, &controller)
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if err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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if !reflect.DeepEqual(controller, expectedController) {
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t.Errorf("Parsing failed: %s %#v %#v", string(data), controller, expectedController)
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}
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}
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var validPodTemplate = api.PodTemplate{
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DesiredState: api.PodState{
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Manifest: api.ContainerManifest{
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Version: "v1beta1",
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Containers: []api.Container{
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{
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Name: "test",
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Image: "test_image",
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},
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},
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},
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},
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Labels: map[string]string{"a": "b"},
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}
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func TestCreateController(t *testing.T) {
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mockRegistry := registrytest.ControllerRegistry{}
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mockPodRegistry := registrytest.PodRegistry{
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Pods: &api.PodList{
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Items: []api.Pod{
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{
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JSONBase: api.JSONBase{ID: "foo"},
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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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storage := REST{
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registry: &mockRegistry,
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podLister: &mockPodRegistry,
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pollPeriod: time.Millisecond * 1,
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}
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controller := &api.ReplicationController{
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JSONBase: api.JSONBase{ID: "test"},
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DesiredState: api.ReplicationControllerState{
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Replicas: 2,
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ReplicaSelector: map[string]string{"a": "b"},
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PodTemplate: validPodTemplate,
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},
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}
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channel, err := storage.Create(controller)
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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 err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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select {
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case <-channel:
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// expected case
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case <-time.After(time.Millisecond * 100):
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t.Error("Unexpected timeout from async channel")
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}
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}
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func TestControllerStorageValidatesCreate(t *testing.T) {
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mockRegistry := registrytest.ControllerRegistry{}
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storage := REST{
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registry: &mockRegistry,
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podLister: nil,
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pollPeriod: time.Millisecond * 1,
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}
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failureCases := map[string]api.ReplicationController{
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"empty ID": {
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JSONBase: api.JSONBase{ID: ""},
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DesiredState: api.ReplicationControllerState{
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ReplicaSelector: map[string]string{"bar": "baz"},
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},
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},
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"empty selector": {
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JSONBase: api.JSONBase{ID: "abc"},
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DesiredState: api.ReplicationControllerState{},
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},
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}
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for _, failureCase := range failureCases {
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c, err := storage.Create(&failureCase)
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if c != nil {
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t.Errorf("Expected nil channel")
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}
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if !errors.IsInvalid(err) {
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t.Errorf("Expected to get an invalid resource error, got %v", err)
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}
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}
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}
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func TestControllerStorageValidatesUpdate(t *testing.T) {
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mockRegistry := registrytest.ControllerRegistry{}
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storage := REST{
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registry: &mockRegistry,
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podLister: nil,
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pollPeriod: time.Millisecond * 1,
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}
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failureCases := map[string]api.ReplicationController{
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"empty ID": {
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JSONBase: api.JSONBase{ID: ""},
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DesiredState: api.ReplicationControllerState{
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ReplicaSelector: map[string]string{"bar": "baz"},
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},
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},
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"empty selector": {
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JSONBase: api.JSONBase{ID: "abc"},
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DesiredState: api.ReplicationControllerState{},
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},
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}
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for _, failureCase := range failureCases {
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c, err := storage.Update(&failureCase)
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if c != nil {
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t.Errorf("Expected nil channel")
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}
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if !errors.IsInvalid(err) {
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t.Errorf("Expected to get an invalid resource error, got %v", err)
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}
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}
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}
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type fakePodLister struct {
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e error
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l api.PodList
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s labels.Selector
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}
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func (f *fakePodLister) ListPods(s labels.Selector) (*api.PodList, error) {
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f.s = s
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return &f.l, f.e
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}
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func TestFillCurrentState(t *testing.T) {
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fakeLister := fakePodLister{
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l: api.PodList{
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Items: []api.Pod{
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{JSONBase: api.JSONBase{ID: "foo"}},
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{JSONBase: api.JSONBase{ID: "bar"}},
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},
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},
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}
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mockRegistry := registrytest.ControllerRegistry{}
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storage := REST{
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registry: &mockRegistry,
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podLister: &fakeLister,
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}
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controller := api.ReplicationController{
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DesiredState: api.ReplicationControllerState{
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ReplicaSelector: map[string]string{
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"foo": "bar",
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},
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},
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}
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storage.fillCurrentState(&controller)
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if controller.CurrentState.Replicas != 2 {
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t.Errorf("expected 2, got: %d", controller.CurrentState.Replicas)
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}
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if !reflect.DeepEqual(fakeLister.s, labels.Set(controller.DesiredState.ReplicaSelector).AsSelector()) {
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t.Errorf("unexpected output: %#v %#v", labels.Set(controller.DesiredState.ReplicaSelector).AsSelector(), fakeLister.s)
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}
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}
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