k8s.io/kubernetes@v1.29.3/pkg/apis/policy/v1/conversion_test.go (about)

     1  /*
     2  Copyright 2021 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 v1
    18  
    19  import (
    20  	"reflect"
    21  	"strings"
    22  	"testing"
    23  
    24  	"github.com/google/go-cmp/cmp"
    25  	"k8s.io/api/policy/v1"
    26  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    27  	"k8s.io/apimachinery/pkg/runtime"
    28  	"k8s.io/kubernetes/pkg/apis/policy"
    29  )
    30  
    31  func TestConversion(t *testing.T) {
    32  	testcases := []struct {
    33  		Name      string
    34  		In        runtime.Object
    35  		Out       runtime.Object
    36  		ExpectOut runtime.Object
    37  		ExpectErr string
    38  	}{
    39  		{
    40  			Name: "v1 to internal with match none selector",
    41  			In: &v1.PodDisruptionBudget{
    42  				Spec: v1.PodDisruptionBudgetSpec{
    43  					Selector: &metav1.LabelSelector{
    44  						MatchExpressions: []metav1.LabelSelectorRequirement{
    45  							{
    46  								Key:      "pdb.kubernetes.io/deprecated-v1beta1-empty-selector-match",
    47  								Operator: metav1.LabelSelectorOpExists,
    48  							},
    49  						},
    50  					},
    51  				},
    52  			},
    53  			Out: &policy.PodDisruptionBudget{},
    54  			ExpectOut: &policy.PodDisruptionBudget{
    55  				Spec: policy.PodDisruptionBudgetSpec{
    56  					Selector: &metav1.LabelSelector{
    57  						MatchExpressions: []metav1.LabelSelectorRequirement{
    58  							{
    59  								Key:      "pdb.kubernetes.io/deprecated-v1beta1-empty-selector-match",
    60  								Operator: metav1.LabelSelectorOpExists,
    61  							},
    62  						},
    63  					},
    64  				},
    65  			},
    66  		},
    67  		{
    68  			Name:      "v1 to internal with nil selector",
    69  			In:        &v1.PodDisruptionBudget{},
    70  			Out:       &policy.PodDisruptionBudget{},
    71  			ExpectOut: &policy.PodDisruptionBudget{},
    72  		},
    73  		{
    74  			Name: "v1 to internal with match all selector",
    75  			In: &v1.PodDisruptionBudget{
    76  				Spec: v1.PodDisruptionBudgetSpec{
    77  					Selector: &metav1.LabelSelector{
    78  						MatchExpressions: []metav1.LabelSelectorRequirement{
    79  							{
    80  								Key:      "pdb.kubernetes.io/deprecated-v1beta1-empty-selector-match",
    81  								Operator: metav1.LabelSelectorOpDoesNotExist,
    82  							},
    83  						},
    84  					},
    85  				},
    86  			},
    87  			Out: &policy.PodDisruptionBudget{},
    88  			ExpectOut: &policy.PodDisruptionBudget{
    89  				Spec: policy.PodDisruptionBudgetSpec{
    90  					Selector: &metav1.LabelSelector{
    91  						MatchExpressions: []metav1.LabelSelectorRequirement{},
    92  					},
    93  				},
    94  			},
    95  		},
    96  	}
    97  
    98  	scheme := runtime.NewScheme()
    99  	if err := policy.AddToScheme(scheme); err != nil {
   100  		t.Fatal(err)
   101  	}
   102  
   103  	if err := AddToScheme(scheme); err != nil {
   104  		t.Fatal(err)
   105  	}
   106  
   107  	for _, tc := range testcases {
   108  		t.Run(tc.Name, func(t *testing.T) {
   109  			err := scheme.Convert(tc.In, tc.Out, nil)
   110  			if err != nil {
   111  				if len(tc.ExpectErr) == 0 {
   112  					t.Fatalf("unexpected error %v", err)
   113  				}
   114  				if !strings.Contains(err.Error(), tc.ExpectErr) {
   115  					t.Fatalf("expected error %s, got %v", tc.ExpectErr, err)
   116  				}
   117  				return
   118  			}
   119  			if len(tc.ExpectErr) > 0 {
   120  				t.Fatalf("expected error %s, got none", tc.ExpectErr)
   121  			}
   122  			if !reflect.DeepEqual(tc.Out, tc.ExpectOut) {
   123  				t.Fatalf("unexpected result:\n %s", cmp.Diff(tc.ExpectOut, tc.Out))
   124  			}
   125  		})
   126  	}
   127  }