k8s.io/kubernetes@v1.31.0-alpha.0.0.20240520171757-56147500dadc/plugin/pkg/admission/disableservicelinks/admission_test.go (about)

     1  /*
     2  Copyright 2024 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 disableservicelinks
    18  
    19  import (
    20  	"context"
    21  	"testing"
    22  
    23  	"k8s.io/apiserver/pkg/admission"
    24  	admissiontesting "k8s.io/apiserver/pkg/admission/testing"
    25  	"k8s.io/kubernetes/pkg/apis/core"
    26  	"k8s.io/kubernetes/pkg/apis/core/helper"
    27  	"k8s.io/utils/ptr"
    28  )
    29  
    30  func TestAdmit(t *testing.T) {
    31  
    32  	plugin := admissiontesting.WithReinvocationTesting(t, newDisableServiceLinks())
    33  
    34  	tests := []struct {
    35  		description  string
    36  		requestedPod core.Pod
    37  		expectedPod  core.Pod
    38  		operation    admission.Operation
    39  	}{
    40  		{
    41  			description: "Create empty pod with default value of Spec.EnableServiceLinks",
    42  			requestedPod: core.Pod{
    43  				Spec: core.PodSpec{},
    44  			},
    45  			expectedPod: core.Pod{
    46  				Spec: core.PodSpec{EnableServiceLinks: ptr.To(false)},
    47  			},
    48  			operation: admission.Create,
    49  		},
    50  		{
    51  			description: "Create empty pod with Spec.EnableServiceLinks set to true",
    52  			requestedPod: core.Pod{
    53  				Spec: core.PodSpec{EnableServiceLinks: ptr.To(true)},
    54  			},
    55  			expectedPod: core.Pod{
    56  				Spec: core.PodSpec{EnableServiceLinks: ptr.To(false)},
    57  			},
    58  			operation: admission.Create,
    59  		},
    60  		{
    61  			description: "Update empty pod with Spec.EnableServiceLinks set to true",
    62  			requestedPod: core.Pod{
    63  				Spec: core.PodSpec{EnableServiceLinks: ptr.To(true)},
    64  			},
    65  			expectedPod: core.Pod{
    66  				Spec: core.PodSpec{EnableServiceLinks: ptr.To(true)},
    67  			},
    68  			operation: admission.Update,
    69  		},
    70  	}
    71  	for i, test := range tests {
    72  		err := plugin.Admit(context.TODO(), admission.NewAttributesRecord(&test.requestedPod, nil,
    73  			core.Kind("Pod").WithVersion("version"), "foo", "name",
    74  			core.Resource("pods").WithVersion("version"), "", test.operation,
    75  			nil, false, nil), nil)
    76  
    77  		if err != nil {
    78  			t.Errorf("[%d: %s] unexpected error %v for pod %+v", i, test.description, err, test.requestedPod)
    79  		}
    80  
    81  		if !helper.Semantic.DeepEqual(test.expectedPod.Spec, test.requestedPod.Spec) {
    82  			t.Errorf("[%d: %s] expected %t got %t", i, test.description, *test.expectedPod.Spec.EnableServiceLinks, *test.requestedPod.Spec.EnableServiceLinks)
    83  		}
    84  	}
    85  }
    86  
    87  func TestHandles(t *testing.T) {
    88  	plugin := newDisableServiceLinks()
    89  	tests := map[admission.Operation]bool{
    90  		admission.Create:  true,
    91  		admission.Update:  true,
    92  		admission.Delete:  false,
    93  		admission.Connect: false,
    94  	}
    95  	for op, expected := range tests {
    96  		result := plugin.Handles(op)
    97  		if result != expected {
    98  			t.Errorf("Unexpected result for operation %s: %v\n", op, result)
    99  		}
   100  	}
   101  }