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testclient.go
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testclient.go
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/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package testclient
import (
"fmt"
"sync"
"github.com/emicklei/go-restful/swagger"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/api/v1"
"k8s.io/kubernetes/pkg/apimachinery/registered"
"k8s.io/kubernetes/pkg/client/restclient"
"k8s.io/kubernetes/pkg/client/typed/discovery"
client "k8s.io/kubernetes/pkg/client/unversioned"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/version"
"k8s.io/kubernetes/pkg/watch"
)
// NewSimpleFake returns a client that will respond with the provided objects
func NewSimpleFake(objects ...runtime.Object) *Fake {
o := NewObjects(api.Scheme, api.Codecs.UniversalDecoder())
for _, obj := range objects {
if err := o.Add(obj); err != nil {
panic(err)
}
}
fakeClient := &Fake{}
fakeClient.AddReactor("*", "*", ObjectReaction(o, registered.RESTMapper()))
fakeClient.AddWatchReactor("*", DefaultWatchReactor(watch.NewFake(), nil))
return fakeClient
}
// Fake implements client.Interface. Meant to be embedded into a struct to get a default
// implementation. This makes faking out just the method you want to test easier.
type Fake struct {
sync.RWMutex
actions []Action // these may be castable to other types, but "Action" is the minimum
// ReactionChain is the list of reactors that will be attempted for every request in the order they are tried
ReactionChain []Reactor
// WatchReactionChain is the list of watch reactors that will be attempted for every request in the order they are tried
WatchReactionChain []WatchReactor
// ProxyReactionChain is the list of proxy reactors that will be attempted for every request in the order they are tried
ProxyReactionChain []ProxyReactor
Resources map[string]*unversioned.APIResourceList
}
// Reactor is an interface to allow the composition of reaction functions.
type Reactor interface {
// Handles indicates whether or not this Reactor deals with a given action
Handles(action Action) bool
// React handles the action and returns results. It may choose to delegate by indicated handled=false
React(action Action) (handled bool, ret runtime.Object, err error)
}
// WatchReactor is an interface to allow the composition of watch functions.
type WatchReactor interface {
// Handles indicates whether or not this Reactor deals with a given action
Handles(action Action) bool
// React handles a watch action and returns results. It may choose to delegate by indicated handled=false
React(action Action) (handled bool, ret watch.Interface, err error)
}
// ProxyReactor is an interface to allow the composition of proxy get functions.
type ProxyReactor interface {
// Handles indicates whether or not this Reactor deals with a given action
Handles(action Action) bool
// React handles a watch action and returns results. It may choose to delegate by indicated handled=false
React(action Action) (handled bool, ret restclient.ResponseWrapper, err error)
}
// ReactionFunc is a function that returns an object or error for a given Action. If "handled" is false,
// then the test client will continue ignore the results and continue to the next ReactionFunc
type ReactionFunc func(action Action) (handled bool, ret runtime.Object, err error)
// WatchReactionFunc is a function that returns a watch interface. If "handled" is false,
// then the test client will continue ignore the results and continue to the next ReactionFunc
type WatchReactionFunc func(action Action) (handled bool, ret watch.Interface, err error)
// ProxyReactionFunc is a function that returns a ResponseWrapper interface for a given Action. If "handled" is false,
// then the test client will continue ignore the results and continue to the next ProxyReactionFunc
type ProxyReactionFunc func(action Action) (handled bool, ret restclient.ResponseWrapper, err error)
// AddReactor appends a reactor to the end of the chain
func (c *Fake) AddReactor(verb, resource string, reaction ReactionFunc) {
c.ReactionChain = append(c.ReactionChain, &SimpleReactor{verb, resource, reaction})
}
// PrependReactor adds a reactor to the beginning of the chain
func (c *Fake) PrependReactor(verb, resource string, reaction ReactionFunc) {
c.ReactionChain = append([]Reactor{&SimpleReactor{verb, resource, reaction}}, c.ReactionChain...)
}
// AddWatchReactor appends a reactor to the end of the chain
func (c *Fake) AddWatchReactor(resource string, reaction WatchReactionFunc) {
c.WatchReactionChain = append(c.WatchReactionChain, &SimpleWatchReactor{resource, reaction})
}
// PrependWatchReactor adds a reactor to the beginning of the chain
func (c *Fake) PrependWatchReactor(resource string, reaction WatchReactionFunc) {
c.WatchReactionChain = append([]WatchReactor{&SimpleWatchReactor{resource, reaction}}, c.WatchReactionChain...)
}
// AddProxyReactor appends a reactor to the end of the chain
func (c *Fake) AddProxyReactor(resource string, reaction ProxyReactionFunc) {
c.ProxyReactionChain = append(c.ProxyReactionChain, &SimpleProxyReactor{resource, reaction})
}
// PrependProxyReactor adds a reactor to the beginning of the chain
func (c *Fake) PrependProxyReactor(resource string, reaction ProxyReactionFunc) {
c.ProxyReactionChain = append([]ProxyReactor{&SimpleProxyReactor{resource, reaction}}, c.ProxyReactionChain...)
}
// Invokes records the provided Action and then invokes the ReactFn (if provided).
// defaultReturnObj is expected to be of the same type a normal call would return.
func (c *Fake) Invokes(action Action, defaultReturnObj runtime.Object) (runtime.Object, error) {
c.Lock()
defer c.Unlock()
c.actions = append(c.actions, action)
for _, reactor := range c.ReactionChain {
if !reactor.Handles(action) {
continue
}
handled, ret, err := reactor.React(action)
if !handled {
continue
}
return ret, err
}
return defaultReturnObj, nil
}
// InvokesWatch records the provided Action and then invokes the ReactFn (if provided).
func (c *Fake) InvokesWatch(action Action) (watch.Interface, error) {
c.Lock()
defer c.Unlock()
c.actions = append(c.actions, action)
for _, reactor := range c.WatchReactionChain {
if !reactor.Handles(action) {
continue
}
handled, ret, err := reactor.React(action)
if !handled {
continue
}
return ret, err
}
return nil, fmt.Errorf("unhandled watch: %#v", action)
}
// InvokesProxy records the provided Action and then invokes the ReactFn (if provided).
func (c *Fake) InvokesProxy(action Action) restclient.ResponseWrapper {
c.Lock()
defer c.Unlock()
c.actions = append(c.actions, action)
for _, reactor := range c.ProxyReactionChain {
if !reactor.Handles(action) {
continue
}
handled, ret, err := reactor.React(action)
if !handled || err != nil {
continue
}
return ret
}
return nil
}
// ClearActions clears the history of actions called on the fake client
func (c *Fake) ClearActions() {
c.Lock()
c.Unlock()
c.actions = make([]Action, 0)
}
// Actions returns a chronologically ordered slice fake actions called on the fake client
func (c *Fake) Actions() []Action {
c.RLock()
defer c.RUnlock()
fa := make([]Action, len(c.actions))
copy(fa, c.actions)
return fa
}
func (c *Fake) LimitRanges(namespace string) client.LimitRangeInterface {
return &FakeLimitRanges{Fake: c, Namespace: namespace}
}
func (c *Fake) ResourceQuotas(namespace string) client.ResourceQuotaInterface {
return &FakeResourceQuotas{Fake: c, Namespace: namespace}
}
func (c *Fake) ReplicationControllers(namespace string) client.ReplicationControllerInterface {
return &FakeReplicationControllers{Fake: c, Namespace: namespace}
}
func (c *Fake) Nodes() client.NodeInterface {
return &FakeNodes{Fake: c}
}
func (c *Fake) PodSecurityPolicies() client.PodSecurityPolicyInterface {
return &FakePodSecurityPolicy{Fake: c}
}
func (c *Fake) Events(namespace string) client.EventInterface {
return &FakeEvents{Fake: c, Namespace: namespace}
}
func (c *Fake) Endpoints(namespace string) client.EndpointsInterface {
return &FakeEndpoints{Fake: c, Namespace: namespace}
}
func (c *Fake) PersistentVolumes() client.PersistentVolumeInterface {
return &FakePersistentVolumes{Fake: c}
}
func (c *Fake) PersistentVolumeClaims(namespace string) client.PersistentVolumeClaimInterface {
return &FakePersistentVolumeClaims{Fake: c, Namespace: namespace}
}
func (c *Fake) Pods(namespace string) client.PodInterface {
return &FakePods{Fake: c, Namespace: namespace}
}
func (c *Fake) PodTemplates(namespace string) client.PodTemplateInterface {
return &FakePodTemplates{Fake: c, Namespace: namespace}
}
func (c *Fake) Services(namespace string) client.ServiceInterface {
return &FakeServices{Fake: c, Namespace: namespace}
}
func (c *Fake) ServiceAccounts(namespace string) client.ServiceAccountsInterface {
return &FakeServiceAccounts{Fake: c, Namespace: namespace}
}
func (c *Fake) Secrets(namespace string) client.SecretsInterface {
return &FakeSecrets{Fake: c, Namespace: namespace}
}
func (c *Fake) Namespaces() client.NamespaceInterface {
return &FakeNamespaces{Fake: c}
}
func (c *Fake) Autoscaling() client.AutoscalingInterface {
return &FakeAutoscaling{c}
}
func (c *Fake) Batch() client.BatchInterface {
return &FakeBatch{c}
}
func (c *Fake) Certificates() client.CertificatesInterface {
return &FakeCertificates{c}
}
func (c *Fake) Extensions() client.ExtensionsInterface {
return &FakeExperimental{c}
}
func (c *Fake) Discovery() discovery.DiscoveryInterface {
return &FakeDiscovery{c}
}
func (c *Fake) ComponentStatuses() client.ComponentStatusInterface {
return &FakeComponentStatuses{Fake: c}
}
func (c *Fake) ConfigMaps(namespace string) client.ConfigMapsInterface {
return &FakeConfigMaps{Fake: c, Namespace: namespace}
}
func (c *Fake) Rbac() client.RbacInterface {
return &FakeRbac{Fake: c}
}
// SwaggerSchema returns an empty swagger.ApiDeclaration for testing
func (c *Fake) SwaggerSchema(version unversioned.GroupVersion) (*swagger.ApiDeclaration, error) {
action := ActionImpl{}
action.Verb = "get"
if version == v1.SchemeGroupVersion {
action.Resource = "/swaggerapi/api/" + version.Version
} else {
action.Resource = "/swaggerapi/apis/" + version.Group + "/" + version.Version
}
c.Invokes(action, nil)
return &swagger.ApiDeclaration{}, nil
}
// NewSimpleFakeAutoscaling returns a client that will respond with the provided objects
func NewSimpleFakeAutoscaling(objects ...runtime.Object) *FakeAutoscaling {
return &FakeAutoscaling{Fake: NewSimpleFake(objects...)}
}
type FakeAutoscaling struct {
*Fake
}
func (c *FakeAutoscaling) HorizontalPodAutoscalers(namespace string) client.HorizontalPodAutoscalerInterface {
return &FakeHorizontalPodAutoscalers{Fake: c, Namespace: namespace}
}
// NewSimpleFakeBatch returns a client that will respond with the provided objects
func NewSimpleFakeBatch(objects ...runtime.Object) *FakeBatch {
return &FakeBatch{Fake: NewSimpleFake(objects...)}
}
type FakeBatch struct {
*Fake
}
func (c *FakeBatch) Jobs(namespace string) client.JobInterface {
return &FakeJobsV1{Fake: c, Namespace: namespace}
}
func (c *FakeBatch) ScheduledJobs(namespace string) client.ScheduledJobInterface {
return &FakeScheduledJobs{Fake: c, Namespace: namespace}
}
// NewSimpleFakeExp returns a client that will respond with the provided objects
func NewSimpleFakeExp(objects ...runtime.Object) *FakeExperimental {
return &FakeExperimental{Fake: NewSimpleFake(objects...)}
}
type FakeExperimental struct {
*Fake
}
func (c *FakeExperimental) DaemonSets(namespace string) client.DaemonSetInterface {
return &FakeDaemonSets{Fake: c, Namespace: namespace}
}
func (c *FakeExperimental) Deployments(namespace string) client.DeploymentInterface {
return &FakeDeployments{Fake: c, Namespace: namespace}
}
func (c *FakeExperimental) Scales(namespace string) client.ScaleInterface {
return &FakeScales{Fake: c, Namespace: namespace}
}
func (c *FakeExperimental) Jobs(namespace string) client.JobInterface {
return &FakeJobs{Fake: c, Namespace: namespace}
}
func (c *FakeExperimental) Ingress(namespace string) client.IngressInterface {
return &FakeIngress{Fake: c, Namespace: namespace}
}
func (c *FakeExperimental) ThirdPartyResources() client.ThirdPartyResourceInterface {
return &FakeThirdPartyResources{Fake: c}
}
func (c *FakeExperimental) ReplicaSets(namespace string) client.ReplicaSetInterface {
return &FakeReplicaSets{Fake: c, Namespace: namespace}
}
func (c *FakeExperimental) NetworkPolicies(namespace string) client.NetworkPolicyInterface {
return &FakeNetworkPolicies{Fake: c, Namespace: namespace}
}
func NewSimpleFakeRbac(objects ...runtime.Object) *FakeRbac {
return &FakeRbac{Fake: NewSimpleFake(objects...)}
}
type FakeRbac struct {
*Fake
}
func (c *FakeRbac) Roles(namespace string) client.RoleInterface {
return &FakeRoles{Fake: c, Namespace: namespace}
}
func (c *FakeRbac) RoleBindings(namespace string) client.RoleBindingInterface {
return &FakeRoleBindings{Fake: c, Namespace: namespace}
}
func (c *FakeRbac) ClusterRoles() client.ClusterRoleInterface {
return &FakeClusterRoles{Fake: c}
}
func (c *FakeRbac) ClusterRoleBindings() client.ClusterRoleBindingInterface {
return &FakeClusterRoleBindings{Fake: c}
}
type FakeDiscovery struct {
*Fake
}
func (c *FakeDiscovery) ServerPreferredResources() ([]unversioned.GroupVersionResource, error) {
return nil, nil
}
func (c *FakeDiscovery) ServerPreferredNamespacedResources() ([]unversioned.GroupVersionResource, error) {
return nil, nil
}
func (c *FakeDiscovery) ServerResourcesForGroupVersion(groupVersion string) (*unversioned.APIResourceList, error) {
action := ActionImpl{
Verb: "get",
Resource: "resource",
}
c.Invokes(action, nil)
return c.Resources[groupVersion], nil
}
func (c *FakeDiscovery) ServerResources() (map[string]*unversioned.APIResourceList, error) {
action := ActionImpl{
Verb: "get",
Resource: "resource",
}
c.Invokes(action, nil)
return c.Resources, nil
}
func (c *FakeDiscovery) ServerGroups() (*unversioned.APIGroupList, error) {
return nil, nil
}
func (c *FakeDiscovery) ServerVersion() (*version.Info, error) {
action := ActionImpl{}
action.Verb = "get"
action.Resource = "version"
c.Invokes(action, nil)
versionInfo := version.Get()
return &versionInfo, nil
}