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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2014-2015 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package priv
import (
"path/filepath"
"launchpad.net/snappy/helpers"
. "gopkg.in/check.v1"
)
type FileLockTestSuite struct {
}
var _ = Suite(&FileLockTestSuite{})
func (ts *FileLockTestSuite) TestFileLock(c *C) {
lockfile := filepath.Join(c.MkDir(), "lock")
c.Assert(helpers.FileExists(lockfile), Equals, false)
lock := NewFileLock(lockfile)
c.Assert(lock, Not(IsNil))
c.Assert(lock.Filename, Equals, lockfile)
c.Assert(lock.realFile, IsNil)
err := lock.Unlock()
c.Assert(err, Equals, ErrNotLocked)
// can only test non-blocking in a single process.
err = lock.Lock(false)
c.Assert(err, IsNil)
c.Assert(helpers.FileExists(lockfile), Equals, true)
c.Assert(lock.Filename, Equals, lockfile)
c.Assert(lock.realFile, Not(IsNil))
err = lock.Lock(false)
c.Assert(err, Equals, ErrAlreadyLocked)
err = lock.Unlock()
c.Assert(err, IsNil)
c.Assert(helpers.FileExists(lockfile), Equals, false)
c.Assert(lock.Filename, Equals, "")
c.Assert(lock.realFile, IsNil)
}
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