}

// These are the errors returned by Decode.
var (
	ErrInvalidMode  = errors.New("invalid x86 mode in Decode")
	ErrTruncated    = errors.New("truncated instruction")
	ErrUnrecognized = errors.New("unrecognized instruction")
)

// decoderCover records coverage information for which parts
// of the byte code have been executed.
var decoderCover []bool

// Decode decodes the leading bytes in src as a single instruction.

        def snapshot = Mock(MetadataSnapshot)
        def newNode = mockChild()

        when:
        def resultRoot = initialRoot.store(searchedPath, CASE_SENSITIVE, snapshot, diffListener)
        then:
        isSameNodeType(resultRoot)
        resultRoot.children == childrenWithSelectedChildReplacedBy(newNode)

        addedNodes == [newNode]
        removedNodes == [selectedChild]

// destination. It's used when calling Decode with a nil value.
func (dec *Decoder) ignoreSingle(engine *decEngine) {
	state := dec.newDecoderState(&dec.buf)
	defer dec.freeDecoderState(state)
	state.fieldnum = singletonField
	delta := int(state.decodeUint())
	if delta != 0 {
		errorf("decode: corrupted data: non-zero delta for singleton")
	}
	instr := &engine.instr[singletonField]

	rv := reflect.ValueOf(v)
	if rv.Kind() != reflect.Pointer || rv.IsNil() {
		return &InvalidUnmarshalError{reflect.TypeOf(v)}
	}

	d.scan.reset()
	d.scanWhile(scanSkipSpace)
	// We decode rv not rv.Elem because the Unmarshaler interface
	// test must be applied at the top level of the value.
	err := d.value(rv)
	if err != nil {
		return d.addErrorContext(err)
	}
	return d.savedError
}

	errShort   = fmt.Errorf("truncated instruction")
	errUnknown = fmt.Errorf("unknown instruction")
)

var decoderCover []bool

// Decode decodes the leading bytes in src as a single instruction.
func Decode(src []byte, mode Mode) (inst Inst, err error) {
	if mode != ModeARM {
		return Inst{}, errMode
	}
	if len(src) < 4 {
		return Inst{}, errShort
	}

	if decoderCover == nil {

		cache.removeNodeImageStates(n.info.Node())
	}
	cache.moveNodeInfoToHead(logger, newNode.Name)

	cache.nodeTree.updateNode(logger, oldNode, newNode)
	cache.addNodeImageStates(newNode, n.info)
	n.info.SetNode(newNode)
	return n.info.Snapshot()
}

// RemoveNode removes a node from the cache's tree.
// The node might still have pods because their deletion events didn't arrive

			},
			oldNode:      testutil.NewNode("node1"),
			newNode:      addTaintsToNode(testutil.NewNode("node1"), "testTaint1", "taint1", []int{1}),
			expectDelete: true,
		},
		{
			description: "Added tolerated taint",
			pods: []corev1.Pod{
				*addToleration(testutil.NewPod("pod1", "node1"), 1, 100),
			},
			oldNode:      testutil.NewNode("node1"),

}

func nodeLabelsChanged(newNode *v1.Node, oldNode *v1.Node) bool {
	return !equality.Semantic.DeepEqual(oldNode.GetLabels(), newNode.GetLabels())
}

func nodeTaintsChanged(newNode *v1.Node, oldNode *v1.Node) bool {
	return !equality.Semantic.DeepEqual(newNode.Spec.Taints, oldNode.Spec.Taints)
}

func nodeConditionsChanged(newNode *v1.Node, oldNode *v1.Node) bool {

		pod              *v1.Pod
		oldNode, newNode *v1.Node
		expectedHint     framework.QueueingHint
		expectedErr      bool
	}{
		{
			name: "node updates label which matches topologyKey",
			pod: st.MakePod().Name("p").SpreadConstraint(1, "zone", v1.DoNotSchedule, fooSelector, nil, nil, nil, nil).
				Obj(),
			oldNode:      st.MakeNode().Name("node-a").Label("zone", "zone1").Obj(),

func CreateUpdateNodeHandler(f func(oldNode, newNode *v1.Node) error) func(oldObj, newObj interface{}) {
	return func(origOldObj, origNewObj interface{}) {
		node := origNewObj.(*v1.Node).DeepCopy()
		prevNode := origOldObj.(*v1.Node).DeepCopy()

		if err := f(prevNode, node); err != nil {
			utilruntime.HandleError(fmt.Errorf("Error while processing Node Add/Delete: %v", err))
		}