libgo/go/cmd/go/go_unix_test.go

   1 // Copyright 2015 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.
   4
   5 // +build darwin dragonfly freebsd linux netbsd openbsd solaris
   6
   7 package main_test
   8
   9 import (
  10         "os"
  11         "syscall"
  12         "testing"
  13 )
  14
  15 func TestGoBuildUmask(t *testing.T) {
  16         // Do not use tg.parallel; avoid other tests seeing umask manipulation.
  17         mask := syscall.Umask(0077) // prohibit low bits
  18         defer syscall.Umask(mask)
  19         tg := testgo(t)
  20         defer tg.cleanup()
  21         tg.tempFile("x.go", `package main; func main() {}`)
  22         // Make sure artifact will be output to /tmp/... in case the user
  23         // has POSIX acl's on their go source tree.
  24         // See issue 17909.
  25         exe := tg.path("x")
  26         tg.creatingTemp(exe)
  27         tg.run("build", "-o", exe, tg.path("x.go"))
  28         fi, err := os.Stat(exe)
  29         if err != nil {
  30                 t.Fatal(err)
  31         }
  32         if mode := fi.Mode(); mode&0077 != 0 {
  33                 t.Fatalf("wrote x with mode=%v, wanted no 0077 bits", mode)
  34         }
  35 }