github.com/stolowski/snapd@v0.0.0-20210407085831-115137ce5a22/osutil/fshelpers_test.go (about)

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2017 Canonical Ltd
     5   *
     6   * This program is free software: you can redistribute it and/or modify
     7   * it under the terms of the GNU General Public License version 3 as
     8   * published by the Free Software Foundation.
     9   *
    10   * This program is distributed in the hope that it will be useful,
    11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13   * GNU General Public License for more details.
    14   *
    15   * You should have received a copy of the GNU General Public License
    16   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    17   *
    18   */
    19  
    20  package osutil_test
    21  
    22  import (
    23  	"io/ioutil"
    24  	"os"
    25  	"path/filepath"
    26  	"strconv"
    27  
    28  	"github.com/snapcore/snapd/osutil"
    29  	. "gopkg.in/check.v1"
    30  )
    31  
    32  type groupFindGidOwningSuite struct{}
    33  
    34  var _ = Suite(&groupFindGidOwningSuite{})
    35  
    36  func (s *groupFindGidOwningSuite) TestSelfOwnedFile(c *C) {
    37  	name := filepath.Join(c.MkDir(), "testownedfile")
    38  	err := ioutil.WriteFile(name, nil, 0644)
    39  	c.Assert(err, IsNil)
    40  
    41  	gid, err := osutil.FindGidOwning(name)
    42  	c.Check(err, IsNil)
    43  
    44  	self, err := osutil.UserMaybeSudoUser()
    45  	c.Assert(err, IsNil)
    46  	c.Check(strconv.FormatUint(gid, 10), Equals, self.Gid)
    47  }
    48  
    49  func (s *groupFindGidOwningSuite) TestNoOwnedFile(c *C) {
    50  	_, err := osutil.FindGidOwning("/tmp/filedoesnotexistbutwhy")
    51  	c.Assert(err, DeepEquals, os.ErrNotExist)
    52  }