// Copyright 2019 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. //go:build race // +build race package race_test import ( "sync" "testing" "time" ) func TestTimers(t *testing.T) { const goroutines = 8 var wg sync.WaitGroup wg.Add(goroutines) var mu sync.Mutex for i := 0; i < goroutines; i++ { go func() { defer wg.Done() ticker := time.NewTicker(1) defer ticker.Stop() for c := 0; c < 1000; c++ { <-ticker.C mu.Lock() mu.Unlock() } }() } wg.Wait() }