k8s.io/kubernetes@v1.29.3/pkg/api/testing/meta_test.go (about)

     1  /*
     2  Copyright 2014 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 testing
    18  
    19  import (
    20  	"reflect"
    21  	"testing"
    22  
    23  	"k8s.io/apimachinery/pkg/api/meta"
    24  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    25  	"k8s.io/apimachinery/pkg/runtime"
    26  	"k8s.io/apimachinery/pkg/runtime/schema"
    27  	"k8s.io/kubernetes/pkg/api/legacyscheme"
    28  )
    29  
    30  var _ metav1.Object = &metav1.ObjectMeta{}
    31  
    32  func TestAccessorImplementations(t *testing.T) {
    33  	for _, gv := range legacyscheme.Scheme.PrioritizedVersionsAllGroups() {
    34  		internalGV := schema.GroupVersion{Group: gv.Group, Version: runtime.APIVersionInternal}
    35  		for _, gv := range []schema.GroupVersion{gv, internalGV} {
    36  			for kind, knownType := range legacyscheme.Scheme.KnownTypes(gv) {
    37  				value := reflect.New(knownType)
    38  				obj := value.Interface()
    39  				if _, ok := obj.(runtime.Object); !ok {
    40  					t.Errorf("%v (%v) does not implement runtime.Object", gv.WithKind(kind), knownType)
    41  				}
    42  				lm, isLM := obj.(meta.ListMetaAccessor)
    43  				om, isOM := obj.(metav1.ObjectMetaAccessor)
    44  				switch {
    45  				case isLM && isOM:
    46  					t.Errorf("%v (%v) implements ListMetaAccessor and ObjectMetaAccessor", gv.WithKind(kind), knownType)
    47  					continue
    48  				case isLM:
    49  					m := lm.GetListMeta()
    50  					if m == nil {
    51  						t.Errorf("%v (%v) returns nil ListMeta", gv.WithKind(kind), knownType)
    52  						continue
    53  					}
    54  					m.SetResourceVersion("102030")
    55  					if m.GetResourceVersion() != "102030" {
    56  						t.Errorf("%v (%v) did not preserve resource version", gv.WithKind(kind), knownType)
    57  						continue
    58  					}
    59  				case isOM:
    60  					m := om.GetObjectMeta()
    61  					if m == nil {
    62  						t.Errorf("%v (%v) returns nil ObjectMeta", gv.WithKind(kind), knownType)
    63  						continue
    64  					}
    65  					m.SetResourceVersion("102030")
    66  					if m.GetResourceVersion() != "102030" {
    67  						t.Errorf("%v (%v) did not preserve resource version", gv.WithKind(kind), knownType)
    68  						continue
    69  					}
    70  					labels := map[string]string{"a": "b"}
    71  					m.SetLabels(labels)
    72  					if !reflect.DeepEqual(m.GetLabels(), labels) {
    73  						t.Errorf("%v (%v) did not preserve labels", gv.WithKind(kind), knownType)
    74  						continue
    75  					}
    76  				default:
    77  					if _, ok := obj.(metav1.ListMetaAccessor); ok {
    78  						continue
    79  					}
    80  					if _, ok := value.Elem().Type().FieldByName("ObjectMeta"); ok {
    81  						t.Errorf("%v (%v) has ObjectMeta but does not implement ObjectMetaAccessor", gv.WithKind(kind), knownType)
    82  						continue
    83  					}
    84  					if _, ok := value.Elem().Type().FieldByName("ListMeta"); ok {
    85  						t.Errorf("%v (%v) has ListMeta but does not implement ListMetaAccessor", gv.WithKind(kind), knownType)
    86  						continue
    87  					}
    88  					t.Logf("%v (%v) does not implement ListMetaAccessor or ObjectMetaAccessor", gv.WithKind(kind), knownType)
    89  				}
    90  			}
    91  		}
    92  	}
    93  }