From ccc981bf80385c528a65fbfdd49bf2d8da22aa23 Mon Sep 17 00:00:00 2001
From: Alexey Kazakov <alkazako@redhat.com>
Date: Thu, 30 Aug 2018 15:02:26 -0700
Subject: [PATCH] Check if channels are closed in the example (#244)

* Check if channels are closed in the example

* Check if the channels are closed before printing
---
 example_test.go | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/example_test.go b/example_test.go
index 700502cb..b4f9f956 100644
--- a/example_test.go
+++ b/example_test.go
@@ -23,12 +23,18 @@ func ExampleNewWatcher() {
 	go func() {
 		for {
 			select {
-			case event := <-watcher.Events:
+			case event, ok := <-watcher.Events:
+				if !ok {
+					return
+				}
 				log.Println("event:", event)
 				if event.Op&fsnotify.Write == fsnotify.Write {
 					log.Println("modified file:", event.Name)
 				}
-			case err := <-watcher.Errors:
+			case err, ok := <-watcher.Errors:
+				if !ok {
+					return
+				}
 				log.Println("error:", err)
 			}
 		}