k8s.io/kubernetes@v1.29.3/pkg/controller/certificates/certificate_controller_test.go (about)

     1  /*
     2  Copyright 2017 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package certificates
    18  
    19  import (
    20  	"context"
    21  	"testing"
    22  	"time"
    23  
    24  	certificates "k8s.io/api/certificates/v1"
    25  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    26  	"k8s.io/apimachinery/pkg/util/wait"
    27  	"k8s.io/client-go/informers"
    28  	"k8s.io/client-go/kubernetes/fake"
    29  	"k8s.io/klog/v2/ktesting"
    30  	"k8s.io/kubernetes/pkg/controller"
    31  )
    32  
    33  // TODO flesh this out to cover things like not being able to find the csr in the cache, not
    34  // auto-approving, etc.
    35  func TestCertificateController(t *testing.T) {
    36  	_, ctx := ktesting.NewTestContext(t)
    37  	csr := &certificates.CertificateSigningRequest{
    38  		ObjectMeta: metav1.ObjectMeta{
    39  			Name: "test-csr",
    40  		},
    41  	}
    42  
    43  	client := fake.NewSimpleClientset(csr)
    44  	informerFactory := informers.NewSharedInformerFactory(fake.NewSimpleClientset(csr), controller.NoResyncPeriodFunc())
    45  	handler := func(ctx context.Context, csr *certificates.CertificateSigningRequest) error {
    46  		csr.Status.Conditions = append(csr.Status.Conditions, certificates.CertificateSigningRequestCondition{
    47  			Type:    certificates.CertificateApproved,
    48  			Reason:  "test reason",
    49  			Message: "test message",
    50  		})
    51  		_, err := client.CertificatesV1().CertificateSigningRequests().UpdateApproval(context.TODO(), csr.Name, csr, metav1.UpdateOptions{})
    52  		if err != nil {
    53  			return err
    54  		}
    55  		return nil
    56  	}
    57  
    58  	controller := NewCertificateController(
    59  		ctx,
    60  		"test",
    61  		client,
    62  		informerFactory.Certificates().V1().CertificateSigningRequests(),
    63  		handler,
    64  	)
    65  	controller.csrsSynced = func() bool { return true }
    66  
    67  	stopCh := make(chan struct{})
    68  	defer close(stopCh)
    69  	informerFactory.Start(stopCh)
    70  	informerFactory.WaitForCacheSync(stopCh)
    71  	wait.PollUntil(10*time.Millisecond, func() (bool, error) {
    72  		return controller.queue.Len() >= 1, nil
    73  	}, stopCh)
    74  	controller.processNextWorkItem(ctx)
    75  
    76  	actions := client.Actions()
    77  	if len(actions) != 1 {
    78  		t.Errorf("expected 1 actions")
    79  	}
    80  	if a := actions[0]; !a.Matches("update", "certificatesigningrequests") ||
    81  		a.GetSubresource() != "approval" {
    82  		t.Errorf("unexpected action: %#v", a)
    83  	}
    84  
    85  }