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bzrlib/tests/test_subsume.py
 
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# Copyright (C) 2006 Canonical Ltd
 
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#
 
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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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from bzrlib import bzrdir, errors, repository, workingtree, tests
 
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class TestWorkingTree(tests.TestCaseWithTransport):
 
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    def make_branch_and_tree(self, relpath, format=None):
 
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        if format is None:
 
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            format = 'experimental-knit3'
 
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        return tests.TestCaseWithTransport.make_branch_and_tree(self, relpath, 
 
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                                                                format)
 
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    def make_trees(self, format=None, same_root=False):
 
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        self.build_tree(['tree/', 
 
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                         'tree/file',
 
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                         'tree/subtree/',
 
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                         'tree/subtree/file2'])
 
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        base_tree = self.make_branch_and_tree('tree', format=format)
 
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        base_tree.add('file', 'file-id')
 
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        base_tree.commit('first commit', rev_id='tree-1')
 
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        sub_tree = self.make_branch_and_tree('tree/subtree', 
 
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                                             format='experimental-knit3')
 
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        if same_root is True:
 
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            sub_tree.set_root_id(base_tree.get_root_id())
 
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        sub_tree.add('file2', 'file2-id')
 
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        sub_tree.commit('first commit', rev_id='subtree-1')
 
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        return base_tree, sub_tree
 
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    def test_old_knit1_failure(self):
 
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        """Ensure that BadSubsumeSource is raised.
 
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        SubsumeTargetNeedsUpgrade must not be raised, because upgrading the
 
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        target won't help.
 
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        """
 
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        base_tree, sub_tree = self.make_trees(format='knit',
 
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                                              same_root=True)
 
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        self.assertRaises(errors.BadSubsumeSource, base_tree.subsume, 
 
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                          sub_tree)
 
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    def test_knit1_failure(self):
 
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        base_tree, sub_tree = self.make_trees(format='knit')
 
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        self.assertRaises(errors.SubsumeTargetNeedsUpgrade, base_tree.subsume, 
 
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                          sub_tree)
 
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    def test_subsume_tree(self):
 
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        base_tree, sub_tree = self.make_trees()
 
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        assert base_tree.get_root_id() != sub_tree.get_root_id()
 
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        sub_root_id = sub_tree.get_root_id()
 
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        base_tree.subsume(sub_tree)
 
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        self.assertEqual(['tree-1', 'subtree-1'], base_tree.get_parent_ids())
 
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        self.assertEqual(sub_root_id, base_tree.path2id('subtree'))
 
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        self.assertEqual('file2-id', base_tree.path2id('subtree/file2'))
 
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        sub_bzrdir = bzrdir.BzrDir.open('tree/subtree')
 
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        self.assertRaises(errors.NoWorkingTree, sub_bzrdir.open_workingtree)
 
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        sub_bzrdir.open_branch()
 
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        file2 = open('tree/subtree/file2', 'rb')
 
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        try:
 
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            file2_contents = file2.read()
 
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        finally:
 
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            file2.close()
 
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        base_tree = workingtree.WorkingTree.open('tree')
 
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        base_tree.commit('combined', rev_id='combined-1')
 
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        self.assertEqual('file2-id', base_tree.path2id('subtree/file2'))
 
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        self.assertEqual('subtree/file2', base_tree.id2path('file2-id'))
 
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        self.assertEqualDiff(file2_contents, 
 
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                             base_tree.get_file_text('file2-id'))
 
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        basis_tree = base_tree.basis_tree()
 
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        self.assertEqualDiff(file2_contents, 
 
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                             base_tree.get_file_text('file2-id'))
 
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        self.assertEqualDiff(file2_contents, 
 
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                             basis_tree.get_file_text('file2-id'))
 
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        self.assertEqual('subtree-1', 
 
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                         basis_tree.inventory['file2-id'].revision)
 
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        self.assertEqual('combined-1', 
 
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                         basis_tree.inventory[sub_root_id].revision)
 
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    def test_subsume_failure(self):
 
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        base_tree, sub_tree = self.make_trees()
 
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        if base_tree.get_root_id() == sub_tree.get_root_id():
 
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            raise tests.TestSkipped('This test requires unique roots')
 
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        sub_root_id = sub_tree.get_root_id()
 
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        self.assertRaises(errors.BadSubsumeSource, base_tree.subsume, 
 
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                          base_tree)
 
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        self.assertRaises(errors.BadSubsumeSource, sub_tree.subsume, 
 
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                          base_tree)
 
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        self.build_tree(['subtree2/'])
 
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        sub_tree2 = self.make_branch_and_tree('subtree2')
 
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        self.assertRaises(errors.BadSubsumeSource, sub_tree.subsume, 
 
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                          sub_tree2)
 
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        self.build_tree(['tree/subtree/subtree3/'])
 
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        sub_tree3 = self.make_branch_and_tree('tree/subtree/subtree3')
 
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        self.assertRaises(errors.BadSubsumeSource, base_tree.subsume,
 
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                          sub_tree3)