From 3f0de10d86fb421b3313793fcce8d5d64a83dfb2 Mon Sep 17 00:00:00 2001
From: Kris <krousey@google.com>
Date: Tue, 13 Feb 2018 11:32:36 -0800
Subject: [PATCH] Add a test case for the race in #59822

Kubernetes-commit: be482ad51c21d493f4b83de9aa06c511a552b5b1
---
 tools/cache/shared_informer_test.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tools/cache/shared_informer_test.go b/tools/cache/shared_informer_test.go
index 6f49d167..22e4a90d 100644
--- a/tools/cache/shared_informer_test.go
+++ b/tools/cache/shared_informer_test.go
@@ -251,3 +251,15 @@ func TestResyncCheckPeriod(t *testing.T) {
 		t.Errorf("expected %d, got %d", e, a)
 	}
 }
+
+// verify that https://github.com/kubernetes/kubernetes/issues/59822 is fixed
+func TestSharedInformerInitializationRace(t *testing.T) {
+	source := fcache.NewFakeControllerSource()
+	informer := NewSharedInformer(source, &v1.Pod{}, 1*time.Second).(*sharedIndexInformer)
+	listener := newTestListener("raceListener", 0)
+
+	stop := make(chan struct{})
+	go informer.AddEventHandlerWithResyncPeriod(listener, listener.resyncPeriod)
+	go informer.Run(stop)
+	close(stop)
+}