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- rules for using destructors

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bzrlib/selftest/test_parent.py
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# Copyright (C) 2005, 2006, 2007, 2009, 2010 Canonical Ltd
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#
 
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# Copyright (C) 2004, 2005 by Canonical Ltd
 
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
 
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
 
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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import sys
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import bzrlib.errors
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from bzrlib.osutils import getcwd
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from bzrlib.tests import (
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    TestCaseWithTransport,
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    TestNotApplicable,
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    TestSkipped,
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    )
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from bzrlib import urlutils
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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import os
 
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from bzrlib.selftest import TestCaseInTempDir
 
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from bzrlib.branch import Branch
 
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from bzrlib.clone import copy_branch
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"""Tests for Branch parent URL"""
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class TestParent(TestCaseWithTransport):
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class TestParent(TestCaseInTempDir):
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    def test_no_default_parent(self):
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        """Branches should have no parent by default"""
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        b = self.make_branch('.')
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        self.assertEqual(None, b.get_parent())
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        b = Branch.initialize('.')
 
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        self.assertEquals(b.get_parent(), None)
 
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    def test_set_get_parent(self):
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        """Set, re-get and reset the parent"""
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        b = self.make_branch('subdir')
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        url = 'http://bazaar-vcs.org/bzr/bzr.dev'
 
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        """Set and then re-get the parent"""
 
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        b = Branch.initialize('.')
 
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        url = 'http://bazaar-ng.org/bzr/bzr.dev'
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        b.set_parent(url)
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        self.assertEqual(url, b.get_parent())
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        self.assertEqual(url, b._get_parent_location())
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        b.set_parent(None)
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        self.assertEqual(None, b.get_parent())
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        b.set_parent('../other_branch')
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        expected_parent = urlutils.join(self.get_url('subdir'),
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                                        '../other_branch')
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        self.assertEqual(expected_parent, b.get_parent())
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        path = urlutils.join(self.get_url('subdir'), '../yanb')
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        b.set_parent(path)
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        self.assertEqual('../yanb', b._get_parent_location())
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        self.assertEqual(path, b.get_parent())
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        self.assertRaises(bzrlib.errors.InvalidURL, b.set_parent, u'\xb5')
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        b.set_parent(urlutils.escape(u'\xb5'))
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        self.assertEqual('%C2%B5', b._get_parent_location())
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        self.assertEqual(b.base + '%C2%B5', b.get_parent())
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        # Handle the case for older style absolute local paths
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        if sys.platform == 'win32':
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            # TODO: jam 20060515 Do we want to special case Windows local
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            #       paths as well? Nobody has complained about it.
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            pass
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        else:
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            b.lock_write()
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            b._set_parent_location('/local/abs/path')
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            b.unlock()
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            self.assertEqual('file:///local/abs/path', b.get_parent())
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    def test_get_invalid_parent(self):
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        b = self.make_branch('.')
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        cwd = getcwd()
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        n_dirs = len(cwd.split('/'))
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        # Force the relative path to be something invalid
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        # This should attempt to go outside the filesystem
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        path = ('../'*(n_dirs+5)) + 'foo'
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        b.lock_write()
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        b._set_parent_location(path)
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        b.unlock()
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        # With an invalid branch parent, just return None
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        self.assertRaises(bzrlib.errors.InaccessibleParent, b.get_parent)
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    def test_win32_set_parent_on_another_drive(self):
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        if sys.platform != 'win32':
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            raise TestSkipped('windows-specific test')
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        b = self.make_branch('.')
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        base_url = b.bzrdir.transport.abspath('.')
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        if not base_url.startswith('file:///'):
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            raise TestNotApplicable('this test should be run with local base')
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        base = urlutils.local_path_from_url(base_url)
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        other = 'file:///D:/path'
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        if base[0] != 'C':
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            other = 'file:///C:/path'
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        b.set_parent(other)
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        self.assertEquals(other, b._get_parent_location())
 
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        self.assertEquals(b.get_parent(), url)
 
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    def test_branch_sets_parent(self):
 
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        """The branch command should set the new branch's parent"""
 
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        from bzrlib.commands import run_bzr
 
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        os.mkdir('from')
 
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        branch_from = Branch.initialize('from')
 
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        file('from/foo', 'wt').write('contents of foo')
 
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        branch_from.add('foo')
 
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        branch_from.commit('initial commit')
 
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        os.mkdir('to')
 
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        copy_branch(branch_from, 'to', None)
 
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        branch_to = Branch.open('to')
 
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        abspath = os.path.abspath('from')
 
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        self.assertEquals(branch_to.get_parent(), abspath)
 
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