Adding upstream version 1.20.14.upstream/1.20.14upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/src/runtime/race/timer_test.go b/src/runtime/race/timer_test.go
new file mode 100644
index 0000000..dd59005
--- /dev/null
+++ b/src/runtime/race/timer_test.go
@@ -0,0 +1,33 @@
+// 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
+
+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()
+}