From 0536a4e40c273a89e75cde3295e1ef6647fbbd04 Mon Sep 17 00:00:00 2001
From: Timo Reimann <ttr314@googlemail.com>
Date: Sat, 22 Oct 2022 00:47:04 +0200
Subject: [PATCH] Add tests

Kubernetes-commit: fc8b4657c18a6e58b2587060ad3c862d3d2ae262
---
 util/workqueue/testing/queue.go | 53 +++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 util/workqueue/testing/queue.go

diff --git a/util/workqueue/testing/queue.go b/util/workqueue/testing/queue.go
new file mode 100644
index 00000000..03368ae1
--- /dev/null
+++ b/util/workqueue/testing/queue.go
@@ -0,0 +1,53 @@
+/*
+Copyright 2022 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package testing
+
+import (
+	"time"
+
+	"k8s.io/client-go/util/workqueue"
+)
+
+// SpyWorkQueue implements a work queue and adds the ability to inspect processed
+// items for testing purposes.
+type SpyWorkQueue struct {
+	workqueue.RateLimitingInterface
+	items []SpyQueueItem
+}
+
+// SpyQueueItem represents an item that was being processed.
+type SpyQueueItem struct {
+	Key interface{}
+	// Delay represents the delayed duration if and only if AddAfter was invoked.
+	Delay time.Duration
+}
+
+// AddAfter is like workqueue.RateLimitingInterface.AddAfter but records the
+// added key and delay internally.
+func (f *SpyWorkQueue) AddAfter(key interface{}, delay time.Duration) {
+	f.items = append(f.items, SpyQueueItem{
+		Key:   key,
+		Delay: delay,
+	})
+
+	f.RateLimitingInterface.AddAfter(key, delay)
+}
+
+// GetItems returns all items that were recorded.
+func (f *SpyWorkQueue) GetItems() []SpyQueueItem {
+	return f.items
+}