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- rules for using destructors

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bzrlib/tests/test_missing.py
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# Copyright (C) 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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# 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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# 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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import os
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from bzrlib.builtins import merge
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from bzrlib.missing import find_unmerged
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from bzrlib.tests import TestCaseWithTransport
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from bzrlib.workingtree import WorkingTree
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class TestMissing(TestCaseWithTransport):
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    def test_find_unmerged(self):
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        original_tree = self.make_branch_and_tree('original')
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        original = original_tree.branch
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        puller_tree = self.make_branch_and_tree('puller')
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        puller = puller_tree.branch
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        merger_tree = self.make_branch_and_tree('merger')
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        merger = merger_tree.branch
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        self.assertEqual(find_unmerged(original, puller), ([], []))
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        original_tree.commit('a', rev_id='a')
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        self.assertEqual(find_unmerged(original, puller), ([(1, u'a')], []))
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        puller_tree.pull(original)
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        self.assertEqual(find_unmerged(original, puller), ([], []))
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        merger_tree.pull(original)
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        original_tree.commit('b', rev_id='b')
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        original_tree.commit('c', rev_id='c')
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        self.assertEqual(find_unmerged(original, puller), ([(2, u'b'), 
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                                                            (3, u'c')], []))
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        puller_tree.pull(original)
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        self.assertEqual(find_unmerged(original, puller), ([], []))
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        self.assertEqual(find_unmerged(original, merger), ([(2, u'b'), 
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                                                            (3, u'c')], []))
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        merge(['original', -1], [None, None], this_dir='merger')
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        self.assertEqual(find_unmerged(original, merger), ([(2, u'b'), 
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                                                            (3, u'c')], []))
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        merger_tree.commit('d', rev_id='d')
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        self.assertEqual(find_unmerged(original, merger), ([], [(2, 'd')]))