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/*
Copyright 2022 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 aggregated
import (
"context"
"errors"
"net/http"
"reflect"
"sync"
"time"
"github.com/emicklei/go-restful/v3"
"github.com/google/go-cmp/cmp" //nolint:depguard
apidiscoveryv2 "k8s.io/api/apidiscovery/v2"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
)
type FakeResourceManager interface {
ResourceManager
Expect() ResourceManager
HasExpectedNumberActions() bool
Validate() error
WaitForActions(ctx context.Context, timeout time.Duration) error
}
func NewFakeResourceManager() FakeResourceManager {
return &fakeResourceManager{}
}
// a resource manager with helper functions for checking the actions
// match expected. For Use in tests
type fakeResourceManager struct {
recorderResourceManager
expect recorderResourceManager
}
// a resource manager which instead of managing a discovery document,
// simply records the calls to its interface functoins for testing
type recorderResourceManager struct {
lock sync.RWMutex
Actions []recorderResourceManagerAction
}
var _ ResourceManager = &fakeResourceManager{}
var _ ResourceManager = &recorderResourceManager{}
// Storage type for a call to the resource manager
type recorderResourceManagerAction struct {
Type string
Group string
Version string
Value interface{}
}
func (f *fakeResourceManager) Expect() ResourceManager {
return &f.expect
}
func (f *fakeResourceManager) HasExpectedNumberActions() bool {
f.lock.RLock()
defer f.lock.RUnlock()
f.expect.lock.RLock()
defer f.expect.lock.RUnlock()
return len(f.Actions) >= len(f.expect.Actions)
}
func (f *fakeResourceManager) Validate() error {
f.lock.RLock()
defer f.lock.RUnlock()
f.expect.lock.RLock()
defer f.expect.lock.RUnlock()
if !reflect.DeepEqual(f.expect.Actions, f.Actions) {
return errors.New(cmp.Diff(f.expect.Actions, f.Actions))
}
return nil
}
func (f *fakeResourceManager) WaitForActions(ctx context.Context, timeout time.Duration) error {
err := wait.PollImmediateWithContext(
ctx,
100*time.Millisecond, // try every 100ms
timeout, // timeout after timeout
func(ctx context.Context) (done bool, err error) {
if f.HasExpectedNumberActions() {
return true, f.Validate()
}
return false, nil
})
return err
}
func (f *recorderResourceManager) SetGroupVersionPriority(gv metav1.GroupVersion, grouppriority, versionpriority int) {
f.lock.Lock()
defer f.lock.Unlock()
f.Actions = append(f.Actions, recorderResourceManagerAction{
Type: "SetGroupVersionPriority",
Group: gv.Group,
Version: gv.Version,
Value: versionpriority,
})
}
func (f *recorderResourceManager) AddGroupVersion(groupName string, value apidiscoveryv2.APIVersionDiscovery) {
f.lock.Lock()
defer f.lock.Unlock()
f.Actions = append(f.Actions, recorderResourceManagerAction{
Type: "AddGroupVersion",
Group: groupName,
Value: value,
})
}
func (f *recorderResourceManager) RemoveGroup(groupName string) {
f.lock.Lock()
defer f.lock.Unlock()
f.Actions = append(f.Actions, recorderResourceManagerAction{
Type: "RemoveGroup",
Group: groupName,
})
}
func (f *recorderResourceManager) RemoveGroupVersion(gv metav1.GroupVersion) {
f.lock.Lock()
defer f.lock.Unlock()
f.Actions = append(f.Actions, recorderResourceManagerAction{
Type: "RemoveGroupVersion",
Group: gv.Group,
Version: gv.Version,
})
}
func (f *recorderResourceManager) SetGroups(values []apidiscoveryv2.APIGroupDiscovery) {
f.lock.Lock()
defer f.lock.Unlock()
f.Actions = append(f.Actions, recorderResourceManagerAction{
Type: "SetGroups",
Value: values,
})
}
func (f *recorderResourceManager) WebService() *restful.WebService {
panic("unimplemented")
}
func (f *recorderResourceManager) ServeHTTP(http.ResponseWriter, *http.Request) {
panic("unimplemented")
}
func (f *recorderResourceManager) WithSource(source Source) ResourceManager {
panic("unimplemented")
}
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