1 // Copyright 2019 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
5 // +build !plan9,!windows,!js
17 func TestWriteFileModeAppliesUmask(t *testing.T) {
18 dir, err := ioutil.TempDir("", "renameio")
20 t.Fatalf("Failed to create temporary directory: %v", err)
22 defer os.RemoveAll(dir)
26 defer syscall.Umask(syscall.Umask(umask))
28 file := filepath.Join(dir, "testWrite")
29 err = WriteFile(file, []byte("go-build"), mode)
31 t.Fatalf("Failed to write file: %v", err)
34 fi, err := os.Stat(file)
36 t.Fatalf("Stat %q (looking for mode %#o): %s", file, mode, err)
39 if fi.Mode()&os.ModePerm != 0640 {
40 t.Errorf("Stat %q: mode %#o want %#o", file, fi.Mode()&os.ModePerm, 0640)