// limitations under the License.

package resource

import (
	"testing"

	. "github.com/onsi/gomega"
	"google.golang.org/protobuf/types/known/emptypb"
)

func TestInstance_IsEmpty_False(t *testing.T) {
	g := NewWithT(t)

	e := Instance{
		Message: &emptypb.Empty{},
	}

	g.Expect(e.IsEmpty()).To(BeFalse())
}

func TestInstance_IsEmpty_True(t *testing.T) {
	g := NewWithT(t)
	e := Instance{}

	rname := resource.NewFullName(resource.Namespace(ns), resource.LocalName(name))
	return &resource.Instance{
		Metadata: resource.Metadata{
			FullName: rname,
			Version:  resource.Version(version),
		},
		Message: &emptypb.Empty{},
		Origin: &kube.Origin{
			FullName: rname,
		},
	}

	typ, err := r.Types.FindMessageByURL(url)
	if err != nil {
		// Here we ignore the error since we want istioctl to ignore unknown types due to the Envoy version change
		msg := exprpb.Type{TypeKind: &exprpb.Type_Dyn{Dyn: &emptypb.Empty{}}}
		return msg.ProtoReflect().Type(), nil
	}
	return typ, nil
}

// Wrapper is a wrapper around the Envoy ConfigDump
// It has extra helper functions for handling any/struct/marshal protobuf pain

}

func TestNewProtoInstance(t *testing.T) {
	s := Builder{
		Kind:         "Empty",
		Plural:       "Empties",
		ProtoPackage: "google.golang.org/protobuf/types/known/emptypb",
		Proto:        "google.protobuf.Empty",
	}.MustBuild()

	p, err := s.NewInstance()
	assert.NoError(t, err)
	assert.Equal(t, p, config.Spec(&emptypb.Empty{}))
}

func TestMustNewProtoInstance_Panic_Nil(t *testing.T) {
	g := NewWithT(t)

	}{
		{
			name: "valid",
			schemas: []resource.Schema{
				resource.Builder{
					Kind:   "Empty1",
					Plural: "Empty1s",
					Proto:  "google.protobuf.Empty",
				}.MustBuild(),
				resource.Builder{
					Kind:   "Empty2",
					Plural: "Empty2s",
					Proto:  "google.protobuf.Empty",
				}.MustBuild(),
			},
			expectError: false,
		},
	}

	for _, c := range cases {

	if err != nil {
		// istioctl should keep going if it encounters new Envoy versions; ignore unknown types
		return &exprpb.Type{TypeKind: &exprpb.Type_Dyn{Dyn: &emptypb.Empty{}}}, nil
	}
	return legacyproto.MessageV1(mt.New().Interface()), nil

type BigStruct struct {
	X int
	Y float64
	A [1 << 20]int
	Z string
}

type Empty struct {
}

type Empty1 struct {
	Empty
}

var (
	intp       *int
	arrayp     *[10]int
	array0p    *[0]int
	bigarrayp  *[1 << 26]int
	structp    *Struct
	bigstructp *BigStruct
	emptyp     *Empty
	empty1p    *Empty1
)

func f1() {
	_ = *intp // ERROR "generated nil check"

}

// StartCond returns the leading empty-width conditions that must
// be true in any match. It returns ^EmptyOp(0) if no matches are possible.
func (p *Prog) StartCond() EmptyOp {
	var flag EmptyOp
	pc := uint32(p.Start)
	i := &p.Inst[pc]
Loop:
	for {
		switch i.Op {
		case InstEmptyWidth:
			flag |= EmptyOp(i.Arg)
		case InstFail:
			return ^EmptyOp(0)
		case InstCapture, InstNop:
			// skip

	apiVersion   string
	emptyObj     runtime.Object
	liveObj      runtime.Object
}

// APIVersion of the object that we're tracking.
func (f *TestFieldManagerImpl) APIVersion() string {
	return f.apiVersion
}

// Reset resets the state of the liveObject by resetting it to an empty object.
func (f *TestFieldManagerImpl) Reset() {
	f.liveObj = f.emptyObj.DeepCopyObject()
}

Russ Cox <******@****.***> 1667840325 -0500