github.com/freetocompute/snapd@v0.0.0-20210618182524-2fb355d72fd9/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  	. "gopkg.in/check.v1"
    29  
    30  	"github.com/snapcore/snapd/osutil"
    31  )
    32  
    33  type groupFindGidOwningSuite struct{}
    34  
    35  var _ = Suite(&groupFindGidOwningSuite{})
    36  
    37  func (s *groupFindGidOwningSuite) TestSelfOwnedFile(c *C) {
    38  	name := filepath.Join(c.MkDir(), "testownedfile")
    39  	err := ioutil.WriteFile(name, nil, 0644)
    40  	c.Assert(err, IsNil)
    41  
    42  	gid, err := osutil.FindGidOwning(name)
    43  	c.Check(err, IsNil)
    44  
    45  	self, err := osutil.UserMaybeSudoUser()
    46  	c.Assert(err, IsNil)
    47  	c.Check(strconv.FormatUint(gid, 10), Equals, self.Gid)
    48  }
    49  
    50  func (s *groupFindGidOwningSuite) TestNoOwnedFile(c *C) {
    51  	_, err := osutil.FindGidOwning("/tmp/filedoesnotexistbutwhy")
    52  	c.Assert(err, DeepEquals, os.ErrNotExist)
    53  }