From 22e08d1a3b6fba51df3bcad9a5f0d70fefd0412d Mon Sep 17 00:00:00 2001
From: Rui Ueyama <ruiu@google.com>
Date: Tue, 5 Aug 2014 13:43:12 -0700
Subject: [PATCH] mime/multipart: fix Writer data race test

If the process exits before the spawned goroutine
completes, it'll miss the data race.

LGTM=bradfitz
R=bradfitz
CC=dvyukov, golang-codereviews
https://golang.org/cl/122120043
---
 src/pkg/mime/multipart/writer_test.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/pkg/mime/multipart/writer_test.go b/src/pkg/mime/multipart/writer_test.go
index 2412985b9b..ba00c97ece 100644
--- a/src/pkg/mime/multipart/writer_test.go
+++ b/src/pkg/mime/multipart/writer_test.go
@@ -118,8 +118,11 @@ func TestWriterBoundaryGoroutines(t *testing.T) {
 	// https://codereview.appspot.com/95760043/ and reverted in
 	// https://codereview.appspot.com/117600043/
 	w := NewWriter(ioutil.Discard)
+	done := make(chan int)
 	go func() {
 		w.CreateFormField("foo")
+		done <- 1
 	}()
 	w.Boundary()
+	<-done
 }