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

     1  // -*- Mode: Go; indent-tabs-mode: t -*-
     2  
     3  /*
     4   * Copyright (C) 2014-2015 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  	"fmt"
    24  	"os"
    25  
    26  	"github.com/snapcore/snapd/osutil"
    27  	. "gopkg.in/check.v1"
    28  )
    29  
    30  type ChdirTestSuite struct{}
    31  
    32  var _ = Suite(&ChdirTestSuite{})
    33  
    34  func (ts *ChdirTestSuite) TestChdir(c *C) {
    35  	tmpdir := c.MkDir()
    36  
    37  	cwd, err := os.Getwd()
    38  	c.Assert(err, IsNil)
    39  	c.Assert(cwd, Not(Equals), tmpdir)
    40  	osutil.ChDir(tmpdir, func() error {
    41  		cwd, err := os.Getwd()
    42  		c.Assert(err, IsNil)
    43  		c.Assert(cwd, Equals, tmpdir)
    44  		return err
    45  	})
    46  }
    47  
    48  func (ts *ChdirTestSuite) TestChdirErrorNoDir(c *C) {
    49  	err := osutil.ChDir("random-dir-that-does-not-exist", func() error {
    50  		return nil
    51  	})
    52  	c.Assert(err, ErrorMatches, "chdir .*: no such file or directory")
    53  }
    54  
    55  func (ts *ChdirTestSuite) TestChdirErrorFromFunc(c *C) {
    56  	err := osutil.ChDir("/", func() error {
    57  		return fmt.Errorf("meep")
    58  	})
    59  	c.Assert(err, ErrorMatches, "meep")
    60  }