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Make CBOR roundtrip cases pass through interface{} as well.

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This commit is contained in:
Ben Luddy 2024-02-27 16:14:32 -05:00
parent 374e4b5686
commit 1503997b4f
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GPG Key ID: A6551E73A5974C30
1 changed files with 46 additions and 12 deletions
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58
staging/src/k8s.io/apimachinery/pkg/runtime/serializer/cbor/internal/modes/roundtrip_test.go
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@ -24,12 +24,14 @@ import (
"time"
"github.com/fxamacker/cbor/v2"
"github.com/google/go-cmp/cmp"
)
func nilPointerFor[T interface{}]() *T {
return nil
}
// TestRoundtrip roundtrips object serialization to interface{} and back via CBOR.
func TestRoundtrip(t *testing.T) {
type modePair struct {
enc cbor.EncMode
@ -101,10 +103,6 @@ func TestRoundtrip(t *testing.T) {
name: "int64 zero",
obj: int64(math.MinInt64),
},
{
name: "uint64 max",
obj: uint64(math.MaxUint64),
},
{
name: "uint64 zero",
obj: uint64(0),
@ -285,18 +283,54 @@ func TestRoundtrip(t *testing.T) {
t.Run(fmt.Sprintf("enc=%s/dec=%s/%s", encModeName, decModeName, tc.name), func(t *testing.T) {
original := tc.obj
b, err := modePair.enc.Marshal(original)
cborFromOriginal, err := modePair.enc.Marshal(original)
if err != nil {
t.Fatalf("unexpected error from Marshal: %v", err)
t.Fatalf("unexpected error from Marshal of original: %v", err)
}
final := reflect.New(reflect.TypeOf(original))
err = modePair.dec.Unmarshal(b, final.Interface())
if err != nil {
t.Fatalf("unexpected error from Unmarshal: %v", err)
var iface interface{}
if err := modePair.dec.Unmarshal(cborFromOriginal, &iface); err != nil {
t.Fatalf("unexpected error from Unmarshal into %T: %v", &iface, err)
}
if !reflect.DeepEqual(original, final.Elem().Interface()) {
t.Errorf("roundtrip difference:\nwant: %#v\ngot: %#v", original, final)
cborFromIface, err := modePair.enc.Marshal(iface)
if err != nil {
t.Fatalf("unexpected error from Marshal of iface: %v", err)
}
{
// interface{} to interface{}
var iface2 interface{}
if err := modePair.dec.Unmarshal(cborFromIface, &iface2); err != nil {
t.Fatalf("unexpected error from Unmarshal into %T: %v", &iface2, err)
}
if diff := cmp.Diff(iface, iface2); diff != "" {
t.Errorf("unexpected difference on roundtrip from interface{} to interface{}:\n%s", diff)
}
}
{
// original to original
final := reflect.New(reflect.TypeOf(original))
err = modePair.dec.Unmarshal(cborFromOriginal, final.Interface())
if err != nil {
t.Fatalf("unexpected error from Unmarshal into %T: %v", final.Interface(), err)
}
if diff := cmp.Diff(original, final.Elem().Interface()); diff != "" {
t.Errorf("unexpected difference on roundtrip from original to original:\n%s", diff)
}
}
{
// original to interface{} to original
finalViaIface := reflect.New(reflect.TypeOf(original))
err = modePair.dec.Unmarshal(cborFromIface, finalViaIface.Interface())
if err != nil {
t.Fatalf("unexpected error from Unmarshal into %T: %v", finalViaIface.Interface(), err)
}
if diff := cmp.Diff(original, finalViaIface.Elem().Interface()); diff != "" {
t.Errorf("unexpected difference on roundtrip from original to interface{} to original:\n%s", diff)
}
}
})
}