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

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2018 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  	"os"
    24  	"path/filepath"
    25  	"sort"
    26  
    27  	"gopkg.in/check.v1"
    28  
    29  	"github.com/snapcore/snapd/osutil"
    30  )
    31  
    32  type unlinkSuite struct {
    33  	d string
    34  }
    35  
    36  var _ = check.Suite(&unlinkSuite{})
    37  
    38  func (s *unlinkSuite) checkDirnames(c *check.C, names []string) {
    39  	dir, err := os.Open(s.d)
    40  	c.Assert(err, check.IsNil)
    41  	defer dir.Close()
    42  	found, err := dir.Readdirnames(-1)
    43  	c.Assert(err, check.IsNil)
    44  	sort.Strings(names)
    45  	sort.Strings(found)
    46  	c.Check(found, check.DeepEquals, names)
    47  }
    48  
    49  func (s *unlinkSuite) SetUpTest(c *check.C) {
    50  	s.d = c.MkDir()
    51  	s.mkFixture(c)
    52  }
    53  
    54  func (s *unlinkSuite) mkFixture(c *check.C) {
    55  	for _, fname := range []string{"foo", "bar", "baz", "quux"} {
    56  		f, err := os.Create(filepath.Join(s.d, fname))
    57  		if err == nil {
    58  			f.Close()
    59  		} else if !os.IsExist(err) {
    60  			c.Fatal(err)
    61  		}
    62  	}
    63  	if err := os.Mkdir(filepath.Join(s.d, "dir"), 0700); err != nil && !os.IsExist(err) {
    64  		c.Fatal(err)
    65  	}
    66  }
    67  
    68  func (s *unlinkSuite) TestUnlinkMany(c *check.C) {
    69  	c.Assert(osutil.UnlinkMany(s.d, []string{"bar", "does-not-exist", "baz"}), check.IsNil)
    70  
    71  	s.checkDirnames(c, []string{"foo", "quux", "dir"})
    72  }
    73  
    74  func (s *unlinkSuite) TestUnlinkManyAt(c *check.C) {
    75  	d, err := os.Open(s.d)
    76  	c.Assert(err, check.IsNil)
    77  	c.Assert(osutil.UnlinkManyAt(d, []string{"bar", "does-not-exist", "baz"}), check.IsNil)
    78  
    79  	s.checkDirnames(c, []string{"foo", "quux", "dir"})
    80  }
    81  
    82  func (s *unlinkSuite) TestUnlinkManyFails(c *check.C) {
    83  	type T struct {
    84  		dirname   string
    85  		filenames []string
    86  		expected  string
    87  	}
    88  	tests := []T{
    89  		{
    90  			dirname:   filepath.Join(s.d, "does-not-exist"),
    91  			filenames: []string{"bar", "baz"},
    92  			expected:  `open /tmp/.*/does-not-exist: no such file or directory`,
    93  		}, {
    94  			dirname:   filepath.Join(s.d, "foo"),
    95  			filenames: []string{"bar", "baz"},
    96  			expected:  `open /tmp/.*/foo: not a directory`,
    97  		}, {
    98  			dirname:   s.d,
    99  			filenames: []string{"bar", "dir", "baz"},
   100  			expected:  `remove dir: is a directory`,
   101  		},
   102  	}
   103  
   104  	for i, test := range tests {
   105  		c.Check(osutil.UnlinkMany(test.dirname, test.filenames), check.ErrorMatches, test.expected, check.Commentf("%d", i))
   106  		s.mkFixture(c)
   107  	}
   108  }