Extract RoundtripToUnstructured to apimachinery apitesting library.
This will allow the same scenarios to be exercised on types defined in staging modules, like apiextensions-apiserver, without importing them all from the root module.
This commit is contained in:
Ben Luddy
@@ -17,30 +17,24 @@ limitations under the License.
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package testing
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import (
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"bytes"
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"fmt"
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"math/rand"
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"os"
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"reflect"
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"strconv"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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fuzz "github.com/google/gofuzz"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
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"k8s.io/apimachinery/pkg/api/apitesting/roundtrip"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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"k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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metaunstruct "k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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cborserializer "k8s.io/apimachinery/pkg/runtime/serializer/cbor"
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cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct"
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jsonserializer "k8s.io/apimachinery/pkg/runtime/serializer/json"
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"k8s.io/apimachinery/pkg/util/json"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/kubernetes/pkg/api/legacyscheme"
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api "k8s.io/kubernetes/pkg/apis/core"
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)
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@@ -142,182 +136,33 @@ func TestRoundTrip(t *testing.T) {
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}
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}
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// TestRoundtripToUnstructured verifies the roundtrip faithfulness of all external types from native
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// to unstructured and back using both the JSON and CBOR serializers. The intermediate unstructured
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// objects produced by both encodings must be identical and be themselves roundtrippable to JSON and
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// CBOR.
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func TestRoundtripToUnstructured(t *testing.T) {
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// These are GVKs that whose CBOR roundtrippability is blocked by a known issue that must be
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// resolved as a prerequisite for alpha.
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knownFailureReasons := map[string][]schema.GroupVersionKind{
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// If a RawExtension's bytes are invalid JSON, its containing object can't be encoded to JSON.
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"rawextension needs to work in programs that assume json": {
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{Version: "v1", Kind: "List"},
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{Group: "apps", Version: "v1beta1", Kind: "ControllerRevision"},
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{Group: "apps", Version: "v1beta1", Kind: "ControllerRevisionList"},
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{Group: "apps", Version: "v1beta2", Kind: "ControllerRevision"},
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{Group: "apps", Version: "v1beta2", Kind: "ControllerRevisionList"},
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{Group: "apps", Version: "v1", Kind: "ControllerRevision"},
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{Group: "apps", Version: "v1", Kind: "ControllerRevisionList"},
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{Group: "admission.k8s.io", Version: "v1beta1", Kind: "AdmissionReview"},
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{Group: "admission.k8s.io", Version: "v1", Kind: "AdmissionReview"},
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{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClaim"},
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{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClaimList"},
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{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClaimParameters"},
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{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClaimParametersList"},
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{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClassParameters"},
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{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClassParametersList"},
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},
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}
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skipped := sets.New(
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// TODO: Support cross-protocol RawExtension roundtrips.
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schema.GroupVersionKind{Version: "v1", Kind: "List"},
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schema.GroupVersionKind{Group: "apps", Version: "v1beta1", Kind: "ControllerRevision"},
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schema.GroupVersionKind{Group: "apps", Version: "v1beta1", Kind: "ControllerRevisionList"},
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schema.GroupVersionKind{Group: "apps", Version: "v1beta2", Kind: "ControllerRevision"},
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schema.GroupVersionKind{Group: "apps", Version: "v1beta2", Kind: "ControllerRevisionList"},
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schema.GroupVersionKind{Group: "apps", Version: "v1", Kind: "ControllerRevision"},
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schema.GroupVersionKind{Group: "apps", Version: "v1", Kind: "ControllerRevisionList"},
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schema.GroupVersionKind{Group: "admission.k8s.io", Version: "v1beta1", Kind: "AdmissionReview"},
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schema.GroupVersionKind{Group: "admission.k8s.io", Version: "v1", Kind: "AdmissionReview"},
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schema.GroupVersionKind{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClaim"},
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schema.GroupVersionKind{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClaimList"},
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schema.GroupVersionKind{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClaimParameters"},
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schema.GroupVersionKind{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClaimParametersList"},
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schema.GroupVersionKind{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClassParameters"},
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schema.GroupVersionKind{Group: "resource.k8s.io", Version: "v1alpha2", Kind: "ResourceClassParametersList"},
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)
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seed := int64(time.Now().Nanosecond())
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if override := os.Getenv("TEST_RAND_SEED"); len(override) > 0 {
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overrideSeed, err := strconv.ParseInt(override, 10, 64)
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if err != nil {
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t.Fatal(err)
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}
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seed = overrideSeed
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t.Logf("using overridden seed: %d", seed)
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} else {
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t.Logf("seed (override with TEST_RAND_SEED if desired): %d", seed)
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}
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var buf bytes.Buffer
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for gvk := range legacyscheme.Scheme.AllKnownTypes() {
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if nonRoundTrippableTypes.Has(gvk.Kind) {
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continue
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}
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if gvk.Version == runtime.APIVersionInternal {
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continue
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}
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subtestName := fmt.Sprintf("%s.%s/%s", gvk.Version, gvk.Group, gvk.Kind)
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if gvk.Group == "" {
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subtestName = fmt.Sprintf("%s/%s", gvk.Version, gvk.Kind)
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}
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t.Run(subtestName, func(t *testing.T) {
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for reason, gvks := range knownFailureReasons {
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for _, each := range gvks {
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if gvk == each {
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t.Skip(reason)
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}
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skipped.Insert(gvk)
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}
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}
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fuzzer := fuzzer.FuzzerFor(FuzzerFuncs, rand.NewSource(seed), legacyscheme.Codecs)
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for i := 0; i < 50; i++ {
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// We do fuzzing on the internal version of the object, and only then
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// convert to the external version. This is because custom fuzzing
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// function are only supported for internal objects.
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internalObj, err := legacyscheme.Scheme.New(schema.GroupVersion{Group: gvk.Group, Version: runtime.APIVersionInternal}.WithKind(gvk.Kind))
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if err != nil {
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t.Fatalf("couldn't create internal object %v: %v", gvk.Kind, err)
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}
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fuzzer.Fuzz(internalObj)
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item, err := legacyscheme.Scheme.New(gvk)
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if err != nil {
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t.Fatalf("couldn't create external object %v: %v", gvk.Kind, err)
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}
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if err := legacyscheme.Scheme.Convert(internalObj, item, nil); err != nil {
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t.Fatalf("conversion for %v failed: %v", gvk.Kind, err)
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}
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// Decoding into Unstructured requires that apiVersion and kind be
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// serialized, so populate TypeMeta.
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item.GetObjectKind().SetGroupVersionKind(gvk)
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jsonSerializer := jsonserializer.NewSerializerWithOptions(jsonserializer.DefaultMetaFactory, legacyscheme.Scheme, legacyscheme.Scheme, jsonserializer.SerializerOptions{})
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cborSerializer := cborserializer.NewSerializer(legacyscheme.Scheme, legacyscheme.Scheme)
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// original->JSON->Unstructured
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buf.Reset()
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if err := jsonSerializer.Encode(item, &buf); err != nil {
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t.Fatalf("error encoding native to json: %v", err)
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}
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var uJSON runtime.Object = &metaunstruct.Unstructured{}
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uJSON, _, err = jsonSerializer.Decode(buf.Bytes(), &gvk, uJSON)
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if err != nil {
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t.Fatalf("error decoding json to unstructured: %v", err)
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}
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// original->CBOR->Unstructured
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buf.Reset()
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if err := cborSerializer.Encode(item, &buf); err != nil {
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t.Fatalf("error encoding native to cbor: %v", err)
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}
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var uCBOR runtime.Object = &metaunstruct.Unstructured{}
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uCBOR, _, err = cborSerializer.Decode(buf.Bytes(), &gvk, uCBOR)
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if err != nil {
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diag, _ := cbor.Diagnose(buf.Bytes())
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t.Fatalf("error decoding cbor to unstructured: %v, diag: %s", err, diag)
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}
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// original->JSON->Unstructured == original->CBOR->Unstructured
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if !apiequality.Semantic.DeepEqual(uJSON, uCBOR) {
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t.Fatalf("unstructured via json differed from unstructured via cbor: %v", cmp.Diff(uJSON, uCBOR))
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}
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// original->JSON/CBOR->Unstructured == original->JSON/CBOR->Unstructured->JSON->Unstructured
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buf.Reset()
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if err := jsonSerializer.Encode(uJSON, &buf); err != nil {
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t.Fatalf("error encoding unstructured to json: %v", err)
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}
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var uJSON2 runtime.Object = &metaunstruct.Unstructured{}
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uJSON2, _, err = jsonSerializer.Decode(buf.Bytes(), &gvk, uJSON2)
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if err != nil {
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t.Fatalf("error decoding json to unstructured: %v", err)
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}
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if !apiequality.Semantic.DeepEqual(uJSON, uJSON2) {
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t.Errorf("object changed during native-json-unstructured-json-unstructured roundtrip, diff: %s", cmp.Diff(uJSON, uJSON2))
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}
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// original->JSON/CBOR->Unstructured == original->JSON/CBOR->Unstructured->CBOR->Unstructured
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buf.Reset()
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if err := cborSerializer.Encode(uCBOR, &buf); err != nil {
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t.Fatalf("error encoding unstructured to cbor: %v", err)
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}
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var uCBOR2 runtime.Object = &metaunstruct.Unstructured{}
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uCBOR2, _, err = cborSerializer.Decode(buf.Bytes(), &gvk, uCBOR2)
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if err != nil {
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diag, _ := cbor.Diagnose(buf.Bytes())
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t.Fatalf("error decoding cbor to unstructured: %v, diag: %s", err, diag)
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}
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if !apiequality.Semantic.DeepEqual(uCBOR, uCBOR2) {
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t.Errorf("object changed during native-cbor-unstructured-cbor-unstructured roundtrip, diff: %s", cmp.Diff(uCBOR, uCBOR2))
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}
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// original->JSON/CBOR->Unstructured->JSON->final == original
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buf.Reset()
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if err := jsonSerializer.Encode(uJSON, &buf); err != nil {
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t.Fatalf("error encoding unstructured to json: %v", err)
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}
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finalJSON, _, err := jsonSerializer.Decode(buf.Bytes(), &gvk, nil)
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if err != nil {
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t.Fatalf("error decoding json to native: %v", err)
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}
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if !apiequality.Semantic.DeepEqual(item, finalJSON) {
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t.Errorf("object changed during native-json-unstructured-json-native roundtrip, diff: %s", cmp.Diff(item, finalJSON))
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}
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// original->JSON/CBOR->Unstructured->CBOR->final == original
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buf.Reset()
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if err := cborSerializer.Encode(uCBOR, &buf); err != nil {
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t.Fatalf("error encoding unstructured to cbor: %v", err)
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}
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finalCBOR, _, err := cborSerializer.Decode(buf.Bytes(), &gvk, nil)
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if err != nil {
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diag, _ := cbor.Diagnose(buf.Bytes())
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t.Fatalf("error decoding cbor to native: %v, diag: %s", err, diag)
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}
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if !apiequality.Semantic.DeepEqual(item, finalCBOR) {
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t.Errorf("object changed during native-cbor-unstructured-cbor-native roundtrip, diff: %s", cmp.Diff(item, finalCBOR))
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}
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}
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})
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}
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roundtrip.RoundtripToUnstructured(t, legacyscheme.Scheme, FuzzerFuncs, skipped)
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}
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func TestRoundTripWithEmptyCreationTimestamp(t *testing.T) {
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@@ -0,0 +1,193 @@
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/*
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Copyright 2024 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package roundtrip
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import (
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"bytes"
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"fmt"
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"math/rand"
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"os"
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"strconv"
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"testing"
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"time"
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"k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/runtime/serializer"
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cborserializer "k8s.io/apimachinery/pkg/runtime/serializer/cbor"
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cbor "k8s.io/apimachinery/pkg/runtime/serializer/cbor/direct"
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jsonserializer "k8s.io/apimachinery/pkg/runtime/serializer/json"
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"k8s.io/apimachinery/pkg/util/sets"
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"github.com/google/go-cmp/cmp"
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)
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// RoundtripToUnstructured verifies the roundtrip faithfulness of all external types in a scheme
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// from native to unstructured and back using both the JSON and CBOR serializers. The intermediate
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// unstructured objects produced by both encodings must be identical and be themselves
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// roundtrippable to JSON and CBOR.
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func RoundtripToUnstructured(t *testing.T, scheme *runtime.Scheme, funcs fuzzer.FuzzerFuncs, skipped sets.Set[schema.GroupVersionKind]) {
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codecs := serializer.NewCodecFactory(scheme)
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seed := int64(time.Now().Nanosecond())
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if override := os.Getenv("TEST_RAND_SEED"); len(override) > 0 {
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overrideSeed, err := strconv.ParseInt(override, 10, 64)
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if err != nil {
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t.Fatal(err)
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}
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seed = overrideSeed
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t.Logf("using overridden seed: %d", seed)
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} else {
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t.Logf("seed (override with TEST_RAND_SEED if desired): %d", seed)
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}
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var buf bytes.Buffer
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for gvk := range scheme.AllKnownTypes() {
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if globalNonRoundTrippableTypes.Has(gvk.Kind) {
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continue
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}
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if gvk.Version == runtime.APIVersionInternal {
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continue
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}
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subtestName := fmt.Sprintf("%s.%s/%s", gvk.Version, gvk.Group, gvk.Kind)
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if gvk.Group == "" {
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subtestName = fmt.Sprintf("%s/%s", gvk.Version, gvk.Kind)
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}
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t.Run(subtestName, func(t *testing.T) {
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if skipped.Has(gvk) {
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t.Skip()
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}
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fuzzer := fuzzer.FuzzerFor(funcs, rand.NewSource(seed), codecs)
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for i := 0; i < 50; i++ {
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// We do fuzzing on the internal version of the object, and only then
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// convert to the external version. This is because custom fuzzing
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// function are only supported for internal objects.
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internalObj, err := scheme.New(schema.GroupVersion{Group: gvk.Group, Version: runtime.APIVersionInternal}.WithKind(gvk.Kind))
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if err != nil {
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t.Fatalf("couldn't create internal object %v: %v", gvk.Kind, err)
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}
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fuzzer.Fuzz(internalObj)
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item, err := scheme.New(gvk)
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if err != nil {
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t.Fatalf("couldn't create external object %v: %v", gvk.Kind, err)
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}
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if err := scheme.Convert(internalObj, item, nil); err != nil {
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t.Fatalf("conversion for %v failed: %v", gvk.Kind, err)
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}
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// Decoding into Unstructured requires that apiVersion and kind be
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// serialized, so populate TypeMeta.
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item.GetObjectKind().SetGroupVersionKind(gvk)
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jsonSerializer := jsonserializer.NewSerializerWithOptions(jsonserializer.DefaultMetaFactory, scheme, scheme, jsonserializer.SerializerOptions{})
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cborSerializer := cborserializer.NewSerializer(scheme, scheme)
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// original->JSON->Unstructured
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buf.Reset()
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if err := jsonSerializer.Encode(item, &buf); err != nil {
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t.Fatalf("error encoding native to json: %v", err)
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}
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var uJSON runtime.Object = &unstructured.Unstructured{}
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uJSON, _, err = jsonSerializer.Decode(buf.Bytes(), &gvk, uJSON)
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if err != nil {
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t.Fatalf("error decoding json to unstructured: %v", err)
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}
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// original->CBOR->Unstructured
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buf.Reset()
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if err := cborSerializer.Encode(item, &buf); err != nil {
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t.Fatalf("error encoding native to cbor: %v", err)
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}
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var uCBOR runtime.Object = &unstructured.Unstructured{}
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uCBOR, _, err = cborSerializer.Decode(buf.Bytes(), &gvk, uCBOR)
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if err != nil {
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diag, _ := cbor.Diagnose(buf.Bytes())
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t.Fatalf("error decoding cbor to unstructured: %v, diag: %s", err, diag)
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}
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// original->JSON->Unstructured == original->CBOR->Unstructured
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if !apiequality.Semantic.DeepEqual(uJSON, uCBOR) {
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t.Fatalf("unstructured via json differed from unstructured via cbor: %v", cmp.Diff(uJSON, uCBOR))
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}
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// original->JSON/CBOR->Unstructured == original->JSON/CBOR->Unstructured->JSON->Unstructured
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buf.Reset()
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if err := jsonSerializer.Encode(uJSON, &buf); err != nil {
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t.Fatalf("error encoding unstructured to json: %v", err)
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}
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var uJSON2 runtime.Object = &unstructured.Unstructured{}
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uJSON2, _, err = jsonSerializer.Decode(buf.Bytes(), &gvk, uJSON2)
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if err != nil {
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t.Fatalf("error decoding json to unstructured: %v", err)
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}
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if !apiequality.Semantic.DeepEqual(uJSON, uJSON2) {
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t.Errorf("object changed during native-json-unstructured-json-unstructured roundtrip, diff: %s", cmp.Diff(uJSON, uJSON2))
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}
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||||
|
||||
// original->JSON/CBOR->Unstructured == original->JSON/CBOR->Unstructured->CBOR->Unstructured
|
||||
buf.Reset()
|
||||
if err := cborSerializer.Encode(uCBOR, &buf); err != nil {
|
||||
t.Fatalf("error encoding unstructured to cbor: %v", err)
|
||||
}
|
||||
var uCBOR2 runtime.Object = &unstructured.Unstructured{}
|
||||
uCBOR2, _, err = cborSerializer.Decode(buf.Bytes(), &gvk, uCBOR2)
|
||||
if err != nil {
|
||||
diag, _ := cbor.Diagnose(buf.Bytes())
|
||||
t.Fatalf("error decoding cbor to unstructured: %v, diag: %s", err, diag)
|
||||
}
|
||||
if !apiequality.Semantic.DeepEqual(uCBOR, uCBOR2) {
|
||||
t.Errorf("object changed during native-cbor-unstructured-cbor-unstructured roundtrip, diff: %s", cmp.Diff(uCBOR, uCBOR2))
|
||||
}
|
||||
|
||||
// original->JSON/CBOR->Unstructured->JSON->final == original
|
||||
buf.Reset()
|
||||
if err := jsonSerializer.Encode(uJSON, &buf); err != nil {
|
||||
t.Fatalf("error encoding unstructured to json: %v", err)
|
||||
}
|
||||
finalJSON, _, err := jsonSerializer.Decode(buf.Bytes(), &gvk, nil)
|
||||
if err != nil {
|
||||
t.Fatalf("error decoding json to native: %v", err)
|
||||
}
|
||||
if !apiequality.Semantic.DeepEqual(item, finalJSON) {
|
||||
t.Errorf("object changed during native-json-unstructured-json-native roundtrip, diff: %s", cmp.Diff(item, finalJSON))
|
||||
}
|
||||
|
||||
// original->JSON/CBOR->Unstructured->CBOR->final == original
|
||||
buf.Reset()
|
||||
if err := cborSerializer.Encode(uCBOR, &buf); err != nil {
|
||||
t.Fatalf("error encoding unstructured to cbor: %v", err)
|
||||
}
|
||||
finalCBOR, _, err := cborSerializer.Decode(buf.Bytes(), &gvk, nil)
|
||||
if err != nil {
|
||||
diag, _ := cbor.Diagnose(buf.Bytes())
|
||||
t.Fatalf("error decoding cbor to native: %v, diag: %s", err, diag)
|
||||
}
|
||||
if !apiequality.Semantic.DeepEqual(item, finalCBOR) {
|
||||
t.Errorf("object changed during native-cbor-unstructured-cbor-native roundtrip, diff: %s", cmp.Diff(item, finalCBOR))
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user