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// Copyright 2021 Canonical Ltd.
// Licensed under the LGPLv3 with static-linking exception.
// See LICENCE file for details.
package efi
import (
"syscall"
"unsafe"
"golang.org/x/sys/unix"
. "gopkg.in/check.v1"
)
type varsLinuxSuite struct{}
var _ = Suite(&varsLinuxSuite{})
func (s *varsLinuxSuite) TestProbeEfivarfs(c *C) {
restore := MockUnixStatfs(func(path string, st *unix.Statfs_t) error {
if path != "/sys/firmware/efi/efivars" {
return syscall.ENOENT
}
if err := unix.Statfs("testdata", st); err != nil {
return err
}
*(*uint)(unsafe.Pointer(&st.Type)) = uint(unix.EFIVARFS_MAGIC)
return nil
})
defer restore()
c.Check(probeEfivarfs(), Equals, true)
}
func (s *varsLinuxSuite) TestProbeEfivarfsNOENT(c *C) {
restore := MockUnixStatfs(func(path string, st *unix.Statfs_t) error {
return syscall.ENOENT
})
defer restore()
c.Check(probeEfivarfs(), Equals, false)
}
func (s *varsLinuxSuite) TestProbeEfivarfsBadFS(c *C) {
restore := MockUnixStatfs(func(path string, st *unix.Statfs_t) error {
unix.Statfs("testdata", st)
st.Type = unix.SYSFS_MAGIC
return nil
})
defer restore()
c.Check(probeEfivarfs(), Equals, false)
}
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