From dc75744f9c16e6af08f3e4677f28850b874ecc51 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <iant@golang.org>
Date: Wed, 17 Oct 2018 12:46:20 -0700
Subject: [PATCH] os/signal: wait for goroutine in TestTerminalSignal

Fixes #28169

Change-Id: I187d9effea56357bbb04d4971d284a52ffae61f8
Reviewed-on: https://go-review.googlesource.com/c/142889
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
---
 src/os/signal/signal_cgo_test.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/os/signal/signal_cgo_test.go b/src/os/signal/signal_cgo_test.go
index 16aeea8221..3c23090489 100644
--- a/src/os/signal/signal_cgo_test.go
+++ b/src/os/signal/signal_cgo_test.go
@@ -22,6 +22,7 @@ import (
 	"os/signal/internal/pty"
 	"strconv"
 	"strings"
+	"sync"
 	"syscall"
 	"testing"
 	"time"
@@ -113,7 +114,11 @@ func TestTerminalSignal(t *testing.T) {
 	const prompt = "prompt> "
 
 	// Read data from master in the background.
+	var wg sync.WaitGroup
+	wg.Add(1)
+	defer wg.Wait()
 	go func() {
+		defer wg.Done()
 		input := bufio.NewReader(master)
 		var line, handled []byte
 		for {
-- 
2.48.1