//     unmarshal maps the sub-element to that struct field.
//
//   - An anonymous struct field is handled as if the fields of its
//     value were part of the outer struct.
//
//   - A struct field with tag "-" is never unmarshaled into.
//
// If Unmarshal encounters a field type that implements the Unmarshaler
// interface, Unmarshal calls its UnmarshalXML method to produce the value from

// the JSON being the JSON literal null. In that case, Unmarshal sets
// the pointer to nil. Otherwise, Unmarshal unmarshals the JSON into
// the value pointed at by the pointer. If the pointer is nil, Unmarshal
// allocates a new value for it to point to.
//
// To unmarshal JSON into a value implementing [Unmarshaler],
// Unmarshal calls that value's [Unmarshaler.UnmarshalJSON] method, including
// when the input is a JSON null.

func TestHasFieldsType(t *testing.T) {
	var unmarshaled []metav1.ManagedFieldsEntry
	if err := yaml.Unmarshal([]byte(`- apiVersion: v1
  fieldsType: FieldsV1
  fieldsV1:
    f:field: {}
  manager: foo
  operation: Apply
`), &unmarshaled); err != nil {
		t.Fatalf("did not expect yaml unmarshalling error but got: %v", err)
	}
	if _, err := DecodeManagedFields(unmarshaled); err != nil {

					// have parsable prefixes because the extension
					// data is optional and the length of the
					// Finished varies across versions.
					for j := 0; j < len(marshaled); j++ {
						if m.unmarshal(marshaled[0:j]) {
							t.Errorf("#%d unmarshaled a prefix of length %d of %#v", i, j, m1)
							break
						}
					}
				}
			}
		})
	}
}

func TestFuzz(t *testing.T) {
	rand := rand.New(rand.NewSource(0))

	"fmt"
	"io"
	"strings"
	"unicode"

	jsonutil "k8s.io/apimachinery/pkg/util/json"

	"sigs.k8s.io/yaml"
)

// Unmarshal unmarshals the given data
// If v is a *map[string]interface{}, *[]interface{}, or *interface{} numbers
// are converted to int64 or float64
func Unmarshal(data []byte, v interface{}) error {
	preserveIntFloat := func(d *json.Decoder) *json.Decoder {
		d.UseNumber()
		return d
	}

	dst := any(new(T)).(proto.Message)
	if err := a.UnmarshalTo(dst); err != nil {
		var z *T
		return z
	}
	return any(dst).(*T)
}

func UnmarshalAny[T any](t test.Failer, a *anypb.Any) *T {
	dst := any(new(T)).(proto.Message)
	if err := a.UnmarshalTo(dst); err != nil {
		t.Fatalf("failed to unmarshal to %T: %v", dst, err)
	}
	return any(dst).(*T)
}

	}

	unmarshaled := RawValue{}
	if _, err := Unmarshal(NullBytes, &unmarshaled); err != nil {
		t.Fatal(err)
	}

	unmarshaled.FullBytes = NullRawValue.FullBytes
	if len(unmarshaled.Bytes) == 0 {
		// DeepEqual considers a nil slice and an empty slice to be different.
		unmarshaled.Bytes = NullRawValue.Bytes
	}

		if err := ec.GetTypedConfig().UnmarshalTo(wasmHTTPFilterConfig); err != nil {
			return nil, nil, nil, fmt.Errorf("failed to unmarshal extension config resource into Wasm HTTP filter: %w", err)
		}
	case ec.GetTypedConfig().TypeUrl == model.WasmNetworkFilterType:
		wasmNetwork = true
		if err := ec.GetTypedConfig().UnmarshalTo(wasmNetworkFilterConfig); err != nil {

	p1 := &ParamPtr{}
	if err := Unmarshal(x, p1); err != nil {
		t.Fatalf("Unmarshal: %s", err)
	}
	if p1.Int == nil {
		t.Fatalf("Unmarshal failed in to *int field")
	} else if *p1.Int != 1 {
		t.Fatalf("Unmarshal with %s failed:\nhave %#v,\n want %#v", x, p1.Int, 1)
	}

	p2 := &ParamVal{}
	if err := Unmarshal(x, p2); err != nil {
		t.Fatalf("Unmarshal: %s", err)
	}
	if p2.Int != 1 {

		if filter.Name == HTTPListener {
			httpProxy := &hcm.HttpConnectionManager{}
			// Allow Unmarshal to work even if Envoy and istioctl are different
			filter.GetTypedConfig().TypeUrl = "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager"
			err := filter.GetTypedConfig().UnmarshalTo(httpProxy)
			if err != nil {
				return err.Error()
			}
			if httpProxy.GetRouteConfig() != nil {