From cc2ef1778d7cc54c05f637ea2527cc9e35c8eb8b Mon Sep 17 00:00:00 2001
From: Lukasz Szaszkiewicz <lukasz.szaszkiewicz@gmail.com>
Date: Thu, 25 Sep 2025 23:28:07 +0200
Subject: [PATCH] client-go/metadata/fake: expose
 IsWatchListSemanticsUnSupported

Kubernetes-commit: 8324fc3e0343e1c6134f3e83be2d77d9556a496c
---
 metadata/fake/simple.go      | 4 ++++
 metadata/fake/simple_test.go | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/metadata/fake/simple.go b/metadata/fake/simple.go
index 47beb1f8d..fc50113fc 100644
--- a/metadata/fake/simple.go
+++ b/metadata/fake/simple.go
@@ -109,6 +109,10 @@ func (c *FakeMetadataClient) Resource(resource schema.GroupVersionResource) meta
 	return &metadataResourceClient{client: c, resource: resource}
 }
 
+func (c *FakeMetadataClient) IsWatchListSemanticsUnSupported() bool {
+	return true
+}
+
 // Namespace returns an interface for accessing the current resource in the specified
 // namespace.
 func (c *metadataResourceClient) Namespace(ns string) metadata.ResourceInterface {
diff --git a/metadata/fake/simple_test.go b/metadata/fake/simple_test.go
index a8369f9f1..d20a8a265 100644
--- a/metadata/fake/simple_test.go
+++ b/metadata/fake/simple_test.go
@@ -27,6 +27,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/client-go/util/watchlist"
 )
 
 const (
@@ -58,6 +59,13 @@ func newPartialObjectMetadataWithAnnotations(annotations map[string]string) *met
 	return u
 }
 
+func TestDoesClientSupportWatchListSemantics(t *testing.T) {
+	target := &FakeMetadataClient{}
+	if !watchlist.DoesClientNotSupportWatchListSemantics(target) {
+		t.Fatalf("FakeMetadataClient should NOT support WatchList semantics")
+	}
+}
+
 func TestList(t *testing.T) {
 	scheme := NewTestScheme()
 	metav1.AddMetaToScheme(scheme)