golang go_unix_test 代码
文件路径：/src/cmd/go/go_unix_test.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.
/go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
package main_test
import (
"os"
"syscall"
"testing"
)
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.creatingTemp(exe)
tg.run("build", "-o", exe, tg.path("x.go"))
fi, err := os.Stat(exe)
if err != nil {
t.Fatal(err)
}
if mode := fi.Mode(); mode&0077 != 0 {
t.Fatalf("wrote x with mode=%v, wanted no 0077 bits", mode)
}
}