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testing.go
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testing.go
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/*
Copyright 2021 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 testing
import (
"context"
"testing"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/informers"
"k8s.io/client-go/kubernetes/fake"
"k8s.io/kubernetes/pkg/scheduler/framework"
frameworkruntime "k8s.io/kubernetes/pkg/scheduler/framework/runtime"
)
// SetupPluginWithInformers creates a plugin using a framework handle that includes
// the provided sharedLister and a SharedInformerFactory with the provided objects.
// The function also creates an empty namespace (since most tests creates pods with
// empty namespace), and start informer factory.
func SetupPluginWithInformers(
ctx context.Context,
tb testing.TB,
pf frameworkruntime.PluginFactory,
config runtime.Object,
sharedLister framework.SharedLister,
objs []runtime.Object,
) framework.Plugin {
objs = append([]runtime.Object{&v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: ""}}}, objs...)
informerFactory := informers.NewSharedInformerFactory(fake.NewSimpleClientset(objs...), 0)
fh, err := frameworkruntime.NewFramework(nil, nil,
frameworkruntime.WithSnapshotSharedLister(sharedLister),
frameworkruntime.WithInformerFactory(informerFactory))
if err != nil {
tb.Fatalf("Failed creating framework runtime: %v", err)
}
p, err := pf(config, fh)
if err != nil {
tb.Fatal(err)
}
informerFactory.Start(ctx.Done())
informerFactory.WaitForCacheSync(ctx.Done())
return p
}
// SetupPlugin creates a plugin using a framework handle that includes
// the provided sharedLister.
func SetupPlugin(
tb testing.TB,
pf frameworkruntime.PluginFactory,
config runtime.Object,
sharedLister framework.SharedLister,
) framework.Plugin {
fh, err := frameworkruntime.NewFramework(nil, nil,
frameworkruntime.WithSnapshotSharedLister(sharedLister))
if err != nil {
tb.Fatalf("Failed creating framework runtime: %v", err)
}
p, err := pf(config, fh)
if err != nil {
tb.Fatal(err)
}
return p
}