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[bytom/vapor.git] / vendor / golang.org / x / sys / unix / mmap_unix_test.go

diff --git a/vendor/golang.org/x/sys/unix/mmap_unix_test.go b/vendor/golang.org/x/sys/unix/mmap_unix_test.go
new file mode 100644 (file)
index 0000000..8de55fe
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/mmap_unix_test.go
@@ -0,0 +1,35 @@
+// Copyright 2014 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 darwin dragonfly freebsd linux netbsd openbsd solaris
+
+package unix_test
+
+import (
+       "testing"
+
+       "golang.org/x/sys/unix"
+)
+
+func TestMmap(t *testing.T) {
+       b, err := unix.Mmap(-1, 0, unix.Getpagesize(), unix.PROT_NONE, unix.MAP_ANON|unix.MAP_PRIVATE)
+       if err != nil {
+               t.Fatalf("Mmap: %v", err)
+       }
+       if err := unix.Mprotect(b, unix.PROT_WRITE); err != nil {
+               t.Fatalf("Mprotect: %v", err)
+       }
+
+       b[0] = 42
+
+       if err := unix.Msync(b, unix.MS_SYNC); err != nil {
+               t.Fatalf("Msync: %v", err)
+       }
+       if err := unix.Madvise(b, unix.MADV_DONTNEED); err != nil {
+               t.Fatalf("Madvise: %v", err)
+       }
+       if err := unix.Munmap(b); err != nil {
+               t.Fatalf("Munmap: %v", err)
+       }
+}