Golang serializer.NewCodecFactory函數代碼示例

func TestUnversionedTypes(t *testing.T) {
	internalGV := schema.GroupVersion{Group: "test.group", Version: runtime.APIVersionInternal}
	externalGV := schema.GroupVersion{Group: "test.group", Version: "testExternal"}
	otherGV := schema.GroupVersion{Group: "group", Version: "other"}

	scheme := runtime.NewScheme()
	scheme.AddUnversionedTypes(externalGV, &InternalSimple{})
	scheme.AddKnownTypeWithName(internalGV.WithKind("Simple"), &InternalSimple{})
	scheme.AddKnownTypeWithName(externalGV.WithKind("Simple"), &ExternalSimple{})
	scheme.AddKnownTypeWithName(otherGV.WithKind("Simple"), &ExternalSimple{})

	codec := serializer.NewCodecFactory(scheme).LegacyCodec(externalGV)

	if unv, ok := scheme.IsUnversioned(&InternalSimple{}); !unv || !ok {
		t.Fatalf("type not unversioned and in scheme: %t %t", unv, ok)
	}

	kinds, _, err := scheme.ObjectKinds(&InternalSimple{})
	if err != nil {
		t.Fatal(err)
	}
	kind := kinds[0]
	if kind != externalGV.WithKind("InternalSimple") {
		t.Fatalf("unexpected: %#v", kind)
	}

	test := &InternalSimple{
		TestString: "I'm the same",
	}
	obj := runtime.Object(test)
	data, err := runtime.Encode(codec, obj)
	if err != nil {
		t.Fatal(err)
	}
	obj2, gvk, err := codec.Decode(data, nil, nil)
	if err != nil {
		t.Fatal(err)
	}
	if _, ok := obj2.(*InternalSimple); !ok {
		t.Fatalf("Got wrong type")
	}
	if !reflect.DeepEqual(obj2, test) {
		t.Errorf("Expected:\n %#v,\n Got:\n %#v", test, obj2)
	}
	// object is serialized as an unversioned object (in the group and version it was defined in)
	if !reflect.DeepEqual(gvk, &schema.GroupVersionKind{Group: "test.group", Version: "testExternal", Kind: "InternalSimple"}) {
		t.Errorf("unexpected gvk returned by decode: %#v", gvk)
	}

	// when serialized to a different group, the object is kept in its preferred name
	codec = serializer.NewCodecFactory(scheme).LegacyCodec(otherGV)
	data, err = runtime.Encode(codec, obj)
	if err != nil {
		t.Fatal(err)
	}
	if string(data) != `{"apiVersion":"test.group/testExternal","kind":"InternalSimple","testString":"I'm the same"}`+"\n" {
		t.Errorf("unexpected data: %s", data)
	}
}

func TestExternalToInternalMapping(t *testing.T) {
	internalGV := schema.GroupVersion{Group: "test.group", Version: runtime.APIVersionInternal}
	externalGV := schema.GroupVersion{Group: "test.group", Version: "testExternal"}

	scheme := runtime.NewScheme()
	scheme.AddKnownTypeWithName(internalGV.WithKind("OptionalExtensionType"), &InternalOptionalExtensionType{})
	scheme.AddKnownTypeWithName(externalGV.WithKind("OptionalExtensionType"), &ExternalOptionalExtensionType{})

	codec := serializer.NewCodecFactory(scheme).LegacyCodec(externalGV)

	table := []struct {
		obj     runtime.Object
		encoded string
	}{
		{
			&InternalOptionalExtensionType{Extension: nil},
			`{"kind":"OptionalExtensionType","apiVersion":"` + externalGV.String() + `"}`,
		},
	}

	for i, item := range table {
		gotDecoded, err := runtime.Decode(codec, []byte(item.encoded))
		if err != nil {
			t.Errorf("unexpected error '%v' (%v)", err, item.encoded)
		} else if e, a := item.obj, gotDecoded; !reflect.DeepEqual(e, a) {
			t.Errorf("%d: unexpected objects:\n%s", i, diff.ObjectGoPrintSideBySide(e, a))
		}
	}
}

func TestEncode(t *testing.T) {
	internalGV := schema.GroupVersion{Group: "test.group", Version: runtime.APIVersionInternal}
	externalGV := schema.GroupVersion{Group: "test.group", Version: "testExternal"}

	scheme := runtime.NewScheme()
	scheme.AddKnownTypeWithName(internalGV.WithKind("Simple"), &InternalSimple{})
	scheme.AddKnownTypeWithName(externalGV.WithKind("Simple"), &ExternalSimple{})

	codec := serializer.NewCodecFactory(scheme).LegacyCodec(externalGV)

	test := &InternalSimple{
		TestString: "I'm the same",
	}
	obj := runtime.Object(test)
	data, err := runtime.Encode(codec, obj)
	obj2, gvk, err2 := codec.Decode(data, nil, nil)
	if err != nil || err2 != nil {
		t.Fatalf("Failure: '%v' '%v'", err, err2)
	}
	if _, ok := obj2.(*InternalSimple); !ok {
		t.Fatalf("Got wrong type")
	}
	if !reflect.DeepEqual(obj2, test) {
		t.Errorf("Expected:\n %#v,\n Got:\n %#v", test, obj2)
	}
	if !reflect.DeepEqual(gvk, &schema.GroupVersionKind{Group: "test.group", Version: "testExternal", Kind: "Simple"}) {
		t.Errorf("unexpected gvk returned by decode: %#v", gvk)
	}
}

func TestDecodeEmptyRawExtensionAsObject(t *testing.T) {
	internalGV := unversioned.GroupVersion{Group: "test.group", Version: runtime.APIVersionInternal}
	externalGV := unversioned.GroupVersion{Group: "test.group", Version: "v1test"}
	externalGVK := externalGV.WithKind("ObjectTest")

	s := runtime.NewScheme()
	s.AddKnownTypes(internalGV, &ObjectTest{})
	s.AddKnownTypeWithName(externalGVK, &ObjectTestExternal{})

	codec := serializer.NewCodecFactory(s).LegacyCodec(externalGV)

	obj, gvk, err := codec.Decode([]byte(`{"kind":"`+externalGVK.Kind+`","apiVersion":"`+externalGV.String()+`","items":[{}]}`), nil, nil)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	test := obj.(*ObjectTest)
	if unk, ok := test.Items[0].(*runtime.Unknown); !ok || unk.Kind != "" || unk.APIVersion != "" || string(unk.Raw) != "{}" || unk.ContentType != runtime.ContentTypeJSON {
		t.Fatalf("unexpected object: %#v", test.Items[0])
	}
	if *gvk != externalGVK {
		t.Fatalf("unexpected kind: %#v", gvk)
	}

	obj, gvk, err = codec.Decode([]byte(`{"kind":"`+externalGVK.Kind+`","apiVersion":"`+externalGV.String()+`","items":[{"kind":"Other","apiVersion":"v1"}]}`), nil, nil)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	test = obj.(*ObjectTest)
	if unk, ok := test.Items[0].(*runtime.Unknown); !ok || unk.Kind != "" || unk.APIVersion != "" || string(unk.Raw) != `{"kind":"Other","apiVersion":"v1"}` || unk.ContentType != runtime.ContentTypeJSON {
		t.Fatalf("unexpected object: %#v", test.Items[0])
	}
	if *gvk != externalGVK {
		t.Fatalf("unexpected kind: %#v", gvk)
	}
}

func newExternalScheme() (*runtime.Scheme, meta.RESTMapper, runtime.Codec) {
	scheme := runtime.NewScheme()
	scheme.AddKnownTypeWithName(internalGV.WithKind("Type"), &internalType{})
	scheme.AddKnownTypeWithName(unlikelyGV.WithKind("Type"), &externalType{})
	//This tests that kubectl will not confuse the external scheme with the internal scheme, even when they accidentally have versions of the same name.
	scheme.AddKnownTypeWithName(validVersionGV.WithKind("Type"), &ExternalType2{})

	codecs := serializer.NewCodecFactory(scheme)
	codec := codecs.LegacyCodec(unlikelyGV)
	mapper := meta.NewDefaultRESTMapper([]unversioned.GroupVersion{unlikelyGV, validVersionGV}, func(version unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
		return &meta.VersionInterfaces{
			ObjectConvertor:  scheme,
			MetadataAccessor: meta.NewAccessor(),
		}, versionErrIfFalse(version == validVersionGV || version == unlikelyGV)
	})
	for _, gv := range []unversioned.GroupVersion{unlikelyGV, validVersionGV} {
		for kind := range scheme.KnownTypes(gv) {
			gvk := gv.WithKind(kind)

			scope := meta.RESTScopeNamespace
			mapper.Add(gvk, scope)
		}
	}

	return scheme, mapper, codec
}

func writeYAML(obj runtime.Object) ([]byte, error) {

	json, err := runtime.Encode(serializer.NewCodecFactory(internal.Scheme).LegacyCodec(v1.SchemeGroupVersion), obj)
	if err != nil {
		return nil, err
	}

	content, err := yaml.JSONToYAML(json)
	if err != nil {
		return nil, err
	}
	return content, err
}

func TestStringSourceMarshaling(t *testing.T) {
	codec := serializer.NewCodecFactory(configapi.Scheme).LegacyCodec(SchemeGroupVersion)

	testcases := map[string]struct {
		Object       configapi.StringSource
		ExpectedJSON string
	}{
		"empty string": {
			Object:       configapi.StringSource{},
			ExpectedJSON: `""`,
		},
		"string": {
			Object:       configapi.StringSource{StringSourceSpec: configapi.StringSourceSpec{Value: "foo"}},
			ExpectedJSON: `"foo"`,
		},
		"struct value+keyFile": {
			Object:       configapi.StringSource{StringSourceSpec: configapi.StringSourceSpec{Value: "foo", KeyFile: "bar"}},
			ExpectedJSON: `{"value":"foo","env":"","file":"","keyFile":"bar"}`,
		},
		"struct env": {
			Object:       configapi.StringSource{StringSourceSpec: configapi.StringSourceSpec{Env: "foo"}},
			ExpectedJSON: `{"value":"","env":"foo","file":"","keyFile":""}`,
		},
		"struct file": {
			Object:       configapi.StringSource{StringSourceSpec: configapi.StringSourceSpec{File: "foo"}},
			ExpectedJSON: `{"value":"","env":"","file":"foo","keyFile":""}`,
		},
		"struct file+keyFile": {
			Object:       configapi.StringSource{StringSourceSpec: configapi.StringSourceSpec{File: "foo", KeyFile: "bar"}},
			ExpectedJSON: `{"value":"","env":"","file":"foo","keyFile":"bar"}`,
		},
	}

	for k, tc := range testcases {
		provider := &configapi.GitHubIdentityProvider{ClientSecret: tc.Object}

		json, err := runtime.Encode(codec, provider)
		if err != nil {
			t.Errorf("%s: unexpected error: %v", k, err)
		}

		// Wrap in a dummy JSON from the surrounding object
		input := fmt.Sprintf(`{"kind":"GitHubIdentityProvider","apiVersion":"v1","clientID":"","clientSecret":%s,"organizations":null,"teams":null}`, tc.ExpectedJSON)
		if strings.TrimSpace(string(json)) != input {
			t.Log(len(input), len(json))
			t.Errorf("%s: expected\n%s\ngot\n%s", k, input, string(json))
		}
	}
}

func NewMetadataCodecFactory() serializer.CodecFactory {
	// populating another scheme from api.Scheme, registering every kind with
	// MetadataOnlyObject (or MetadataOnlyObjectList).
	scheme := runtime.NewScheme()
	allTypes := api.Scheme.AllKnownTypes()
	for kind := range allTypes {
		if kind.Version == runtime.APIVersionInternal {
			continue
		}
		metaOnlyObject := gvkToMetadataOnlyObject(kind)
		scheme.AddKnownTypeWithName(kind, metaOnlyObject)
	}
	scheme.AddUnversionedTypes(api.Unversioned, &unversioned.Status{})
	return serializer.NewCodecFactory(scheme)
}

// For debugging problems
func TestSpecificKind(t *testing.T) {
	configapi.Scheme.Log(t)
	defer configapi.Scheme.Log(nil)

	kind := "MasterConfig"
	item, err := configapi.Scheme.New(configapi.SchemeGroupVersion.WithKind(kind))
	if err != nil {
		t.Errorf("Couldn't make a %v? %v", kind, err)
		return
	}
	seed := int64(2703387474910584091) //rand.Int63()
	for i := 0; i < fuzzIters; i++ {
		fuzzInternalObject(t, configapiv1.SchemeGroupVersion, item, seed)
		roundTrip(t, serializer.NewCodecFactory(configapi.Scheme).LegacyCodec(configapiv1.SchemeGroupVersion), item)
	}
}

func TestBadJSONRejection(t *testing.T) {
	scheme := runtime.NewScheme()
	codecs := serializer.NewCodecFactory(scheme)
	jsonserializer, _ := codecs.SerializerForFileExtension("json")

	badJSONMissingKind := []byte(`{ }`)
	if _, err := runtime.Decode(jsonserializer, badJSONMissingKind); err == nil {
		t.Errorf("Did not reject despite lack of kind field: %s", badJSONMissingKind)
	}
	badJSONUnknownType := []byte(`{"kind": "bar"}`)
	if _, err1 := runtime.Decode(jsonserializer, badJSONUnknownType); err1 == nil {
		t.Errorf("Did not reject despite use of unknown type: %s", badJSONUnknownType)
	}
	/*badJSONKindMismatch := []byte(`{"kind": "Pod"}`)
	if err2 := DecodeInto(badJSONKindMismatch, &Node{}); err2 == nil {
		t.Errorf("Kind is set but doesn't match the object type: %s", badJSONKindMismatch)
	}*/
}

// TestTypes will try to roundtrip all OpenShift and Kubernetes stable api types
func TestTypes(t *testing.T) {
	for kind := range configapi.Scheme.KnownTypes(configapi.SchemeGroupVersion) {
		// Try a few times, since runTest uses random values.
		for i := 0; i < fuzzIters; i++ {
			item, err := configapi.Scheme.New(configapi.SchemeGroupVersion.WithKind(kind))
			if err != nil {
				t.Errorf("Couldn't make a %v? %v", kind, err)
				continue
			}
			if _, err := meta.TypeAccessor(item); err != nil {
				t.Fatalf("%q is not a TypeMeta and cannot be tested - add it to nonRoundTrippableTypes: %v", kind, err)
			}
			seed := rand.Int63()

			fuzzInternalObject(t, configapiv1.SchemeGroupVersion, item, seed)
			roundTrip(t, serializer.NewCodecFactory(configapi.Scheme).LegacyCodec(configapiv1.SchemeGroupVersion), item)
		}
	}
}

func testScheme(t *testing.T) (*runtime.Scheme, runtime.Codec) {
	scheme := runtime.NewScheme()
	scheme.Log(t)
	scheme.AddKnownTypes(*testapi.Default.GroupVersion(), &storagetesting.TestResource{})
	scheme.AddKnownTypes(testapi.Default.InternalGroupVersion(), &storagetesting.TestResource{})
	if err := scheme.AddConversionFuncs(
		func(in *storagetesting.TestResource, out *storagetesting.TestResource, s conversion.Scope) error {
			*out = *in
			return nil
		},
		func(in, out *time.Time, s conversion.Scope) error {
			*out = *in
			return nil
		},
	); err != nil {
		panic(err)
	}
	codec := serializer.NewCodecFactory(scheme).LegacyCodec(*testapi.Default.GroupVersion())
	return scheme, codec
}

// TestDeepCopyOfRuntimeObject checks to make sure that runtime.Objects's can be passed through DeepCopy with fidelity
func TestDeepCopyOfRuntimeObject(t *testing.T) {
	internalGV := unversioned.GroupVersion{Group: "test.group", Version: runtime.APIVersionInternal}
	externalGV := unversioned.GroupVersion{Group: "test.group", Version: "v1test"}
	embeddedTestExternalGVK := externalGV.WithKind("EmbeddedTest")

	s := runtime.NewScheme()
	s.AddKnownTypes(internalGV, &EmbeddedTest{})
	s.AddKnownTypeWithName(embeddedTestExternalGVK, &EmbeddedTestExternal{})

	original := &EmbeddedTest{
		ID: "outer",
		Object: &EmbeddedTest{
			ID: "inner",
		},
	}

	codec := serializer.NewCodecFactory(s).LegacyCodec(externalGV)

	originalData, err := runtime.Encode(codec, original)
	if err != nil {
		t.Errorf("unexpected error: %v", err)
	}
	t.Logf("originalRole = %v\n", string(originalData))

	copyOfOriginal, err := s.DeepCopy(original)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	copiedData, err := runtime.Encode(codec, copyOfOriginal.(runtime.Object))
	if err != nil {
		t.Errorf("unexpected error: %v", err)
	}
	t.Logf("copyOfRole   = %v\n", string(copiedData))

	if !reflect.DeepEqual(original, copyOfOriginal) {
		t.Errorf("expected \n%v\n, got \n%v", string(originalData), string(copiedData))
	}
}

package latest

import (
	"k8s.io/kubernetes/pkg/api/unversioned"
	"k8s.io/kubernetes/pkg/runtime/serializer"

	configapi "github.com/openshift/origin/pkg/cmd/server/api"
)

// HACK TO ELIMINATE CYCLE UNTIL WE KILL THIS PACKAGE

// Version is the string that represents the current external default version.
var Version = unversioned.GroupVersion{Group: "", Version: "v1"}

// OldestVersion is the string that represents the oldest server version supported,
// for client code that wants to hardcode the lowest common denominator.
var OldestVersion = unversioned.GroupVersion{Group: "", Version: "v1"}

// Versions is the list of versions that are recognized in code. The order provided
// may be assumed to be least feature rich to most feature rich, and clients may
// choose to prefer the latter items in the list over the former items when presented
// with a set of versions to choose.
var Versions = []unversioned.GroupVersion{{Group: "", Version: "v1"}}

var Codec = serializer.NewCodecFactory(configapi.Scheme).LegacyCodec(unversioned.GroupVersion{Group: "", Version: "v1"})

func TestScheme(t *testing.T) {
	internalGV := schema.GroupVersion{Group: "test.group", Version: runtime.APIVersionInternal}
	externalGV := schema.GroupVersion{Group: "test.group", Version: "testExternal"}

	scheme := runtime.NewScheme()
	scheme.AddKnownTypeWithName(internalGV.WithKind("Simple"), &InternalSimple{})
	scheme.AddKnownTypeWithName(externalGV.WithKind("Simple"), &ExternalSimple{})

	// If set, would clear TypeMeta during conversion.
	//scheme.AddIgnoredConversionType(&TypeMeta{}, &TypeMeta{})

	// test that scheme is an ObjectTyper
	var _ runtime.ObjectTyper = scheme

	internalToExternalCalls := 0
	externalToInternalCalls := 0

	// Register functions to verify that scope.Meta() gets set correctly.
	err := scheme.AddConversionFuncs(
		func(in *InternalSimple, out *ExternalSimple, scope conversion.Scope) error {
			scope.Convert(&in.TypeMeta, &out.TypeMeta, 0)
			scope.Convert(&in.TestString, &out.TestString, 0)
			internalToExternalCalls++
			return nil
		},
		func(in *ExternalSimple, out *InternalSimple, scope conversion.Scope) error {
			scope.Convert(&in.TypeMeta, &out.TypeMeta, 0)
			scope.Convert(&in.TestString, &out.TestString, 0)
			externalToInternalCalls++
			return nil
		},
	)
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}

	codecs := serializer.NewCodecFactory(scheme)
	codec := codecs.LegacyCodec(externalGV)
	info, _ := runtime.SerializerInfoForMediaType(codecs.SupportedMediaTypes(), runtime.ContentTypeJSON)
	jsonserializer := info.Serializer

	simple := &InternalSimple{
		TestString: "foo",
	}

	// Test Encode, Decode, DecodeInto, and DecodeToVersion
	obj := runtime.Object(simple)
	data, err := runtime.Encode(codec, obj)
	if err != nil {
		t.Fatal(err)
	}

	obj2, err := runtime.Decode(codec, data)
	if err != nil {
		t.Fatal(err)
	}
	if _, ok := obj2.(*InternalSimple); !ok {
		t.Fatalf("Got wrong type")
	}
	if e, a := simple, obj2; !reflect.DeepEqual(e, a) {
		t.Errorf("Expected:\n %#v,\n Got:\n %#v", e, a)
	}

	obj3 := &InternalSimple{}
	if err := runtime.DecodeInto(codec, data, obj3); err != nil {
		t.Fatal(err)
	}
	// clearing TypeMeta is a function of the scheme, which we do not test here (ConvertToVersion
	// does not automatically clear TypeMeta anymore).
	simple.TypeMeta = runtime.TypeMeta{Kind: "Simple", APIVersion: externalGV.String()}
	if e, a := simple, obj3; !reflect.DeepEqual(e, a) {
		t.Errorf("Expected:\n %#v,\n Got:\n %#v", e, a)
	}

	obj4, err := runtime.Decode(jsonserializer, data)
	if err != nil {
		t.Fatal(err)
	}
	if _, ok := obj4.(*ExternalSimple); !ok {
		t.Fatalf("Got wrong type")
	}

	// Test Convert
	external := &ExternalSimple{}
	err = scheme.Convert(simple, external, nil)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	if e, a := simple.TestString, external.TestString; e != a {
		t.Errorf("Expected %v, got %v", e, a)
	}

	// Encode and Convert should each have caused an increment.
	if e, a := 2, internalToExternalCalls; e != a {
		t.Errorf("Expected %v, got %v", e, a)
	}
	// DecodeInto and Decode should each have caused an increment because of a conversion
	if e, a := 2, externalToInternalCalls; e != a {
		t.Errorf("Expected %v, got %v", e, a)
	}
//.........這裏部分代碼省略.........