switch pt {
	case types.JSONPatchType:
		patchObj, err := jsonpatch.DecodePatch(data)
		if err != nil {
			klog.FromContext(ctx).Error(err, "")
			return nil, nil
		}
		if patchedObjJS, err = patchObj.Apply(originalObjJS); err != nil {
			klog.FromContext(ctx).Error(err, "")
			return nil, nil
		}
	case types.MergePatchType:
		if patchedObjJS, err = jsonpatch.MergePatch(originalObjJS, data); err != nil {

			if err != nil {
				return nil, nil, errors.NewBadRequest(fmt.Sprintf("error decoding patch: %v", err))
			}
		}

		patchedJS, retErr = jsonpatch.MergePatch(versionedJS, p.patchBytes)
		if retErr == jsonpatch.ErrBadJSONPatch {
			return nil, nil, errors.NewBadRequest(retErr.Error())
		}
		return patchedJS, strictErrors, retErr
	default:

	Result *metav1.Status `json:"status,omitempty"`

	// The patch body. Currently we only support "JSONPatch" which implements RFC 6902.
	Patch []byte `json:"patch,omitempty"`

	// The type of Patch. Currently we only allow "JSONPatch".
	PatchType *string `json:"patchType,omitempty"`

// at the expense of some code gen.
package crdclient

import (
	"fmt"
	"sync"
	"time"

	jsonmerge "github.com/evanphx/json-patch/v5"
	"go.uber.org/atomic"
	"gomodules.xyz/jsonpatch/v2"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	klabels "k8s.io/apimachinery/pkg/labels"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/apimachinery/pkg/util/json"

See the License for the specific language governing permissions and
limitations under the License.
*/

package jsonmergepatch

import (
	"fmt"
	"reflect"
	"testing"

	jsonpatch "gopkg.in/evanphx/json-patch.v4"
	"k8s.io/apimachinery/pkg/util/dump"
	"k8s.io/apimachinery/pkg/util/json"
	"sigs.k8s.io/yaml"
)

type FilterNullTestCases struct {
	TestCases []FilterNullTestCase
}

					Patch:   []byte(`[{"op":"add","path":"/foo","value":"bar"}]`),
				},
			},
			expectAllowed:   true,
			expectPatch:     []byte(`[{"op":"add","path":"/foo","value":"bar"}]`),
			expectPatchType: "JSONPatch",
		},
		{
			name:     "v1 patch",
			uid:      "123",
			mutating: true,
			review: &admissionv1.AdmissionReview{
				TypeMeta: metav1.TypeMeta{APIVersion: "admission.k8s.io/v1", Kind: "AdmissionReview"},

// Package mutating delegates admission checks to dynamically configured
// mutating webhooks.
package mutating

import (
	"context"
	"errors"
	"fmt"
	"time"

	"go.opentelemetry.io/otel/attribute"
	jsonpatch "gopkg.in/evanphx/json-patch.v4"

	admissionv1 "k8s.io/api/admission/v1"
	admissionregistrationv1 "k8s.io/api/admissionregistration/v1"
	apiequality "k8s.io/apimachinery/pkg/api/equality"

          - pkg: google.golang.org/protobuf/encoding/protojson
            desc: "don't use the protojson package directly; use util/protomarshal instead"
          - pkg: gomodules.xyz/jsonpatch/v3
            desc: "don't use v3; v2 is orders of magnitude higher performance"
          - pkg: k8s.io/apimachinery/pkg/util/sets
            desc: "use istio.io/istio/pkg/util/sets"
          - pkg: k8s.io/utils/env

	}
	for {
		if c.JSONPatchMaxCopyBytes <= 0 {
			break
		}
		existing := atomic.LoadInt64(&jsonpatch.AccumulatedCopySizeLimit)
		if existing > 0 && existing < c.JSONPatchMaxCopyBytes {
			break
		}
		if atomic.CompareAndSwapInt64(&jsonpatch.AccumulatedCopySizeLimit, existing, c.JSONPatchMaxCopyBytes) {
			break
		}
	}

	// first add poststarthooks from delegated targets

	"crypto/sha256"
	"encoding/json"
	"errors"
	"fmt"
	"net/http"
	"os"
	"strconv"
	"strings"
	"sync"
	"text/template"
	"time"

	"github.com/prometheus/prometheus/util/strutil"
	"gomodules.xyz/jsonpatch/v2"
	admissionv1 "k8s.io/api/admission/v1"
	kubeApiAdmissionv1beta1 "k8s.io/api/admission/v1beta1"
	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"