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

     1  /*
     2  Copyright 2015 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  	"math/rand"
    21  	"os"
    22  	"testing"
    23  
    24  	"github.com/google/go-cmp/cmp"
    25  
    26  	v1 "k8s.io/api/core/v1"
    27  	"k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
    28  	apiequality "k8s.io/apimachinery/pkg/api/equality"
    29  	"k8s.io/apimachinery/pkg/runtime"
    30  	"k8s.io/apimachinery/pkg/runtime/schema"
    31  	"k8s.io/kubernetes/pkg/api/legacyscheme"
    32  	api "k8s.io/kubernetes/pkg/apis/core"
    33  )
    34  
    35  func BenchmarkPodConversion(b *testing.B) {
    36  	apiObjectFuzzer := fuzzer.FuzzerFor(FuzzerFuncs, rand.NewSource(benchmarkSeed), legacyscheme.Codecs)
    37  	items := make([]api.Pod, 4)
    38  	for i := range items {
    39  		apiObjectFuzzer.Fuzz(&items[i])
    40  		items[i].Spec.InitContainers = nil
    41  		items[i].Status.InitContainerStatuses = nil
    42  	}
    43  
    44  	// add a fixed item
    45  	items = append(items, benchmarkPod)
    46  	width := len(items)
    47  
    48  	scheme := legacyscheme.Scheme
    49  	for i := 0; i < b.N; i++ {
    50  		pod := &items[i%width]
    51  		versionedObj, err := scheme.UnsafeConvertToVersion(pod, schema.GroupVersion{Group: "", Version: "v1"})
    52  		if err != nil {
    53  			b.Fatalf("Conversion error: %v", err)
    54  		}
    55  		if _, err = scheme.UnsafeConvertToVersion(versionedObj, schema.GroupVersion{Group: "", Version: runtime.APIVersionInternal}); err != nil {
    56  			b.Fatalf("Conversion error: %v", err)
    57  		}
    58  	}
    59  }
    60  
    61  func BenchmarkNodeConversion(b *testing.B) {
    62  	data, err := os.ReadFile("node_example.json")
    63  	if err != nil {
    64  		b.Fatalf("Unexpected error while reading file: %v", err)
    65  	}
    66  	var node api.Node
    67  	if err := runtime.DecodeInto(legacyscheme.Codecs.LegacyCodec(v1.SchemeGroupVersion), data, &node); err != nil {
    68  		b.Fatalf("Unexpected error decoding node: %v", err)
    69  	}
    70  
    71  	scheme := legacyscheme.Scheme
    72  	var result *api.Node
    73  	b.ResetTimer()
    74  	for i := 0; i < b.N; i++ {
    75  		versionedObj, err := scheme.UnsafeConvertToVersion(&node, schema.GroupVersion{Group: "", Version: "v1"})
    76  		if err != nil {
    77  			b.Fatalf("Conversion error: %v", err)
    78  		}
    79  		obj, err := scheme.UnsafeConvertToVersion(versionedObj, schema.GroupVersion{Group: "", Version: runtime.APIVersionInternal})
    80  		if err != nil {
    81  			b.Fatalf("Conversion error: %v", err)
    82  		}
    83  		result = obj.(*api.Node)
    84  	}
    85  	b.StopTimer()
    86  	if !apiequality.Semantic.DeepDerivative(node, *result) {
    87  		b.Fatalf("Incorrect conversion: %s", cmp.Diff(node, *result))
    88  	}
    89  }
    90  
    91  func BenchmarkReplicationControllerConversion(b *testing.B) {
    92  	data, err := os.ReadFile("replication_controller_example.json")
    93  	if err != nil {
    94  		b.Fatalf("Unexpected error while reading file: %v", err)
    95  	}
    96  	var replicationController api.ReplicationController
    97  	if err := runtime.DecodeInto(legacyscheme.Codecs.LegacyCodec(v1.SchemeGroupVersion), data, &replicationController); err != nil {
    98  		b.Fatalf("Unexpected error decoding node: %v", err)
    99  	}
   100  
   101  	scheme := legacyscheme.Scheme
   102  	var result *api.ReplicationController
   103  	b.ResetTimer()
   104  	for i := 0; i < b.N; i++ {
   105  		versionedObj, err := scheme.UnsafeConvertToVersion(&replicationController, schema.GroupVersion{Group: "", Version: "v1"})
   106  		if err != nil {
   107  			b.Fatalf("Conversion error: %v", err)
   108  		}
   109  		obj, err := scheme.UnsafeConvertToVersion(versionedObj, schema.GroupVersion{Group: "", Version: runtime.APIVersionInternal})
   110  		if err != nil {
   111  			b.Fatalf("Conversion error: %v", err)
   112  		}
   113  		result = obj.(*api.ReplicationController)
   114  	}
   115  	b.StopTimer()
   116  	if !apiequality.Semantic.DeepDerivative(replicationController, *result) {
   117  		b.Fatalf("Incorrect conversion: expected %v, got %v", replicationController, *result)
   118  	}
   119  }