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# Copyright (C) 2005 by Canonical Ltd
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from StringIO import StringIO
from bzrlib.branch import Branch
from bzrlib.errors import BzrBadParameterNotString, NoSuchFile, ReadOnlyError
from bzrlib.lockable_files import LockableFiles
from bzrlib.tests import TestCaseInTempDir
from bzrlib.transactions import PassThroughTransaction, ReadOnlyTransaction
from bzrlib.transport import get_transport
class TestLockableFiles(TestCaseInTempDir):
def setUp(self):
super(TestLockableFiles, self).setUp()
transport = get_transport('.')
transport.mkdir('.bzr')
transport.put('.bzr/my-lock', StringIO(''))
self.lockable = LockableFiles(transport.clone('.bzr'), 'my-lock')
def test_read_write(self):
self.assertRaises(NoSuchFile, self.lockable.get, 'foo')
self.assertRaises(NoSuchFile, self.lockable.get_utf8, 'foo')
self.lockable.lock_write()
try:
unicode_string = u'bar\u1234'
self.assertEqual(4, len(unicode_string))
byte_string = unicode_string.encode('utf-8')
self.assertEqual(6, len(byte_string))
self.assertRaises(UnicodeEncodeError, self.lockable.put, 'foo',
StringIO(unicode_string))
self.lockable.put('foo', StringIO(byte_string))
self.assertEqual(byte_string,
self.lockable.get('foo').read())
self.assertEqual(unicode_string,
self.lockable.get_utf8('foo').read())
self.assertRaises(BzrBadParameterNotString,
self.lockable.put_utf8,
'bar',
StringIO(unicode_string)
)
self.lockable.put_utf8('bar', unicode_string)
self.assertEqual(unicode_string,
self.lockable.get_utf8('bar').read())
self.assertEqual(byte_string,
self.lockable.get('bar').read())
finally:
self.lockable.unlock()
def test_locks(self):
self.lockable.lock_read()
try:
self.assertRaises(ReadOnlyError, self.lockable.put, 'foo',
StringIO('bar\u1234'))
finally:
self.lockable.unlock()
def test_transactions(self):
self.assertIs(self.lockable.get_transaction().__class__,
PassThroughTransaction)
self.lockable.lock_read()
try:
self.assertIs(self.lockable.get_transaction().__class__,
ReadOnlyTransaction)
finally:
self.lockable.unlock()
self.assertIs(self.lockable.get_transaction().__class__,
PassThroughTransaction)
self.lockable.lock_write()
self.assertIs(self.lockable.get_transaction().__class__,
PassThroughTransaction)
self.lockable.unlock()
def test__escape(self):
self.assertEqual('%25', self.lockable._escape('%'))
def test__escape_empty(self):
self.assertEqual('', self.lockable._escape(''))
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