sparse_test.go

Documentation: k8s.io/apimachinery/pkg/runtime/serializer

     1  /*
     2  Copyright 2018 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 serializer
    18  
    19  import (
    20  	"testing"
    21  
    22  	"github.com/google/go-cmp/cmp"
    23  	"k8s.io/apimachinery/pkg/api/equality"
    24  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    25  	"k8s.io/apimachinery/pkg/runtime"
    26  	"k8s.io/apimachinery/pkg/runtime/schema"
    27  )
    28  
    29  type FakeV1Obj struct {
    30  	metav1.TypeMeta
    31  	metav1.ObjectMeta
    32  }
    33  
    34  func (*FakeV1Obj) DeepCopyObject() runtime.Object {
    35  	panic("not supported")
    36  }
    37  
    38  type FakeV2DifferentObj struct {
    39  	metav1.TypeMeta
    40  	metav1.ObjectMeta
    41  }
    42  
    43  func (*FakeV2DifferentObj) DeepCopyObject() runtime.Object {
    44  	panic("not supported")
    45  }
    46  func TestSparse(t *testing.T) {
    47  	v1 := schema.GroupVersion{Group: "mygroup", Version: "v1"}
    48  	v2 := schema.GroupVersion{Group: "mygroup", Version: "v2"}
    49  
    50  	scheme := runtime.NewScheme()
    51  	scheme.AddKnownTypes(v1, &FakeV1Obj{})
    52  	scheme.AddKnownTypes(v2, &FakeV2DifferentObj{})
    53  	codecs := NewCodecFactory(scheme)
    54  
    55  	srcObj1 := &FakeV1Obj{ObjectMeta: metav1.ObjectMeta{Name: "foo"}}
    56  	srcObj2 := &FakeV2DifferentObj{ObjectMeta: metav1.ObjectMeta{Name: "foo"}}
    57  
    58  	encoder := codecs.LegacyCodec(v2, v1)
    59  	decoder := codecs.UniversalDecoder(v2, v1)
    60  
    61  	srcObj1Bytes, err := runtime.Encode(encoder, srcObj1)
    62  	if err != nil {
    63  		t.Fatal(err)
    64  	}
    65  	t.Log(string(srcObj1Bytes))
    66  	srcObj2Bytes, err := runtime.Encode(encoder, srcObj2)
    67  	if err != nil {
    68  		t.Fatal(err)
    69  	}
    70  	t.Log(string(srcObj2Bytes))
    71  
    72  	uncastDstObj1, err := runtime.Decode(decoder, srcObj1Bytes)
    73  	if err != nil {
    74  		t.Fatal(err)
    75  	}
    76  	uncastDstObj2, err := runtime.Decode(decoder, srcObj2Bytes)
    77  	if err != nil {
    78  		t.Fatal(err)
    79  	}
    80  
    81  	// clear typemeta
    82  	uncastDstObj1.(*FakeV1Obj).TypeMeta = metav1.TypeMeta{}
    83  	uncastDstObj2.(*FakeV2DifferentObj).TypeMeta = metav1.TypeMeta{}
    84  
    85  	if !equality.Semantic.DeepEqual(srcObj1, uncastDstObj1) {
    86  		t.Fatal(cmp.Diff(srcObj1, uncastDstObj1))
    87  	}
    88  	if !equality.Semantic.DeepEqual(srcObj2, uncastDstObj2) {
    89  		t.Fatal(cmp.Diff(srcObj2, uncastDstObj2))
    90  	}
    91  }
    92
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