Align fake client-go clients with the main interface

"Real" clients use objectWithMeta to enforce support for meta.Object;
strictly speaking, fakes don't need this, but it's best to align them
with the real clients to ensure that fakes don't end up allowing types
that can't be used with the real clients.

Signed-off-by: Stephen Kitt <[email protected]>

Author: skitt

staging/src/k8s.io/client-go/gentype/fake.go

@@ -32,7 +32,7 @@ import (
 )
 
 // FakeClient represents a fake client
-type FakeClient[T runtime.Object] struct {
+type FakeClient[T objectWithMeta] struct {
 	*testing.Fake
 	ns        string
 	resource  schema.GroupVersionResource
@@ -41,47 +41,47 @@ type FakeClient[T runtime.Object] struct {
 }
 
 // FakeClientWithList represents a fake client with support for lists.
-type FakeClientWithList[T runtime.Object, L runtime.Object] struct {
+type FakeClientWithList[T objectWithMeta, L runtime.Object] struct {
 	*FakeClient[T]
 	alsoFakeLister[T, L]
 }
 
 // FakeClientWithApply represents a fake client with support for apply declarative configurations.
-type FakeClientWithApply[T runtime.Object, C namedObject] struct {
+type FakeClientWithApply[T objectWithMeta, C namedObject] struct {
 	*FakeClient[T]
 	alsoFakeApplier[T, C]
 }
 
 // FakeClientWithListAndApply represents a fake client with support for lists and apply declarative configurations.
-type FakeClientWithListAndApply[T runtime.Object, L runtime.Object, C namedObject] struct {
+type FakeClientWithListAndApply[T objectWithMeta, L runtime.Object, C namedObject] struct {
 	*FakeClient[T]
 	alsoFakeLister[T, L]
 	alsoFakeApplier[T, C]
 }
 
 // Helper types for composition
-type alsoFakeLister[T runtime.Object, L runtime.Object] struct {
+type alsoFakeLister[T objectWithMeta, L runtime.Object] struct {
 	client       *FakeClient[T]
 	newList      func() L
 	copyListMeta func(L, L)
 	getItems     func(L) []T
 	setItems     func(L, []T)
 }
 
-type alsoFakeApplier[T runtime.Object, C namedObject] struct {
+type alsoFakeApplier[T objectWithMeta, C namedObject] struct {
 	client *FakeClient[T]
 }
 
 // NewFakeClient constructs a fake client, namespaced or not, with no support for lists or apply.
 // Non-namespaced clients are constructed by passing an empty namespace ("").
-func NewFakeClient[T runtime.Object](
+func NewFakeClient[T objectWithMeta](
 	fake *testing.Fake, namespace string, resource schema.GroupVersionResource, kind schema.GroupVersionKind, emptyObjectCreator func() T,
 ) *FakeClient[T] {
 	return &FakeClient[T]{fake, namespace, resource, kind, emptyObjectCreator}
 }
 
 // NewFakeClientWithList constructs a namespaced client with support for lists.
-func NewFakeClientWithList[T runtime.Object, L runtime.Object](
+func NewFakeClientWithList[T objectWithMeta, L runtime.Object](
 	fake *testing.Fake, namespace string, resource schema.GroupVersionResource, kind schema.GroupVersionKind, emptyObjectCreator func() T,
 	emptyListCreator func() L, listMetaCopier func(L, L), itemGetter func(L) []T, itemSetter func(L, []T),
 ) *FakeClientWithList[T, L] {
@@ -93,7 +93,7 @@ func NewFakeClientWithList[T runtime.Object, L runtime.Object](
 }
 
 // NewFakeClientWithApply constructs a namespaced client with support for apply declarative configurations.
-func NewFakeClientWithApply[T runtime.Object, C namedObject](
+func NewFakeClientWithApply[T objectWithMeta, C namedObject](
 	fake *testing.Fake, namespace string, resource schema.GroupVersionResource, kind schema.GroupVersionKind, emptyObjectCreator func() T,
 ) *FakeClientWithApply[T, C] {
 	fakeClient := NewFakeClient[T](fake, namespace, resource, kind, emptyObjectCreator)
@@ -104,7 +104,7 @@ func NewFakeClientWithApply[T runtime.Object, C namedObject](
 }
 
 // NewFakeClientWithListAndApply constructs a client with support for lists and applying declarative configurations.
-func NewFakeClientWithListAndApply[T runtime.Object, L runtime.Object, C namedObject](
+func NewFakeClientWithListAndApply[T objectWithMeta, L runtime.Object, C namedObject](
 	fake *testing.Fake, namespace string, resource schema.GroupVersionResource, kind schema.GroupVersionKind, emptyObjectCreator func() T,
 	emptyListCreator func() L, listMetaCopier func(L, L), itemGetter func(L) []T, itemSetter func(L, []T),
 ) *FakeClientWithListAndApply[T, L, C] {