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Source file src/cmd/go/go_unix_test.go

Documentation: cmd/go

  // Copyright 2015 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 main_test
  import (
  func TestGoBuildUmask(t *testing.T) {
  	// Do not use tg.parallel; avoid other tests seeing umask manipulation.
  	mask := syscall.Umask(0077) // prohibit low bits
  	defer syscall.Umask(mask)
  	tg := testgo(t)
  	defer tg.cleanup()
  	tg.tempFile("x.go", `package main; func main() {}`)
  	// Make sure artifact will be output to /tmp/... in case the user
  	// has POSIX acl's on their go source tree.
  	// See issue 17909.
  	exe := tg.path("x")
  	tg.run("build", "-o", exe, tg.path("x.go"))
  	fi, err := os.Stat(exe)
  	if err != nil {
  	if mode := fi.Mode(); mode&0077 != 0 {
  		t.Fatalf("wrote x with mode=%v, wanted no 0077 bits", mode)

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