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fake_clientmap.go
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fake_clientmap.go
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// Copyright (c) 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 fake
import (
"context"
"fmt"
"github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/gardener/gardener/pkg/client/kubernetes/clientmap"
"github.com/gardener/gardener/pkg/client/kubernetes/fake"
"sigs.k8s.io/controller-runtime/pkg/client"
)
var _ clientmap.ClientMap = &ClientMap{}
// ClientMap is a simple implementation of clientmap.ClientMap which can be used to fake ClientMaps in unit tests.
type ClientMap struct {
clientSets map[clientmap.ClientSetKey]kubernetes.Interface
}
// NewClientMap creates a new empty ClientMap.
func NewClientMap() *ClientMap {
return &ClientMap{
clientSets: make(map[clientmap.ClientSetKey]kubernetes.Interface),
}
}
// NewClientMapWithClientSets creates a new ClientMap containing the given ClientSets.
func NewClientMapWithClientSets(clientSets map[clientmap.ClientSetKey]kubernetes.Interface) *ClientMap {
return &ClientMap{
clientSets: clientSets,
}
}
// AddClient adds the given ClientSet to the fake ClientMap with the given key.
func (f *ClientMap) AddClient(key clientmap.ClientSetKey, cs kubernetes.Interface) *ClientMap {
f.clientSets[key] = cs
return f
}
// AddRuntimeClient adds a new fake ClientSets containing only the given runtime client to the fake ClientMap with the
// given key.
func (f *ClientMap) AddRuntimeClient(key clientmap.ClientSetKey, c client.Client) *ClientMap {
f.clientSets[key] = fake.NewClientSetBuilder().WithClient(c).Build()
return f
}
// GetClient returns the ClientSet for the given key if present.
func (f *ClientMap) GetClient(_ context.Context, key clientmap.ClientSetKey) (kubernetes.Interface, error) {
if cs, ok := f.clientSets[key]; ok {
return cs, nil
}
return nil, fmt.Errorf("clientSet for key %q not found", key.Key())
}
// InvalidateClient removes the ClientSet for the given key from the ClientMap if present.
func (f *ClientMap) InvalidateClient(key clientmap.ClientSetKey) error {
delete(f.clientSets, key)
return nil
}
// Start does nothing, as fake ClientMap does not support it.
func (f *ClientMap) Start(<-chan struct{}) error {
return nil
}