1 files changed, 31 insertions, 0 deletions
diff --git a/src/pkg/runtime/futex_test.go b/src/pkg/runtime/futex_test.go
new file mode 100644
index 000000000..51f4d0f12
--- /dev/null
+++ b/src/pkg/runtime/futex_test.go
@@ -0,0 +1,31 @@
+// Copyright 2013 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.
+
+// +build linux freebsd
+
+package runtime_test
+
+import (
+	. "runtime"
+	"testing"
+	"time"
+)
+
+func TestFutexsleep(t *testing.T) {
+	ch := make(chan bool, 1)
+	var dummy uint32
+	start := time.Now()
+	go func() {
+		Entersyscall()
+		Futexsleep(&dummy, 0, (1<<31+100)*1e9)
+		Exitsyscall()
+		ch <- true
+	}()
+	select {
+	case <-ch:
+		t.Errorf("futexsleep finished early after %s!", time.Since(start))
+	case <-time.After(time.Second):
+		Futexwakeup(&dummy, 1)
+	}
+}