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bzrlib/tests/test_delta.py
 
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# Copyright (C) 2006 by Canonical Development 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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"""test the functions in bzrlib/delta.py"""
 
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from bzrlib import delta, revision, transform
 
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from bzrlib.tests import TestCaseWithTransport
 
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class TestCompareTrees(TestCaseWithTransport):
 
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    def setUp(self):
 
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        TestCaseWithTransport.setUp(self)
 
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        self.tree = self.make_branch_and_tree('tree')
 
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        files = ['a', 'b/', 'b/c']
 
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        self.build_tree(['tree/' + f for f in files])
 
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        self.tree.add(files, ['a-id', 'b-id', 'c-id'])
 
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        self.tree.commit('initial tree')
 
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    def test_revision_tree_against_empty(self):
 
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        empty_tree = self.tree.branch.repository.revision_tree(
 
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                        revision.NULL_REVISION)
 
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        d = delta.compare_trees(empty_tree, self.tree.basis_tree())
 
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        self.assertEqual([('a', 'a-id', 'file'),
 
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                          ('b', 'b-id', 'directory'),
 
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                          ('b/c', 'c-id', 'file'),
 
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                         ], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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        d = delta.compare_trees(self.tree.basis_tree(), empty_tree)
 
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        self.assertEqual([], d.added)
 
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        self.assertEqual([('a', 'a-id', 'file'),
 
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                          ('b', 'b-id', 'directory'),
 
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                          ('b/c', 'c-id', 'file'),
 
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                         ], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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    def test_tree_modified(self):
 
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        open('tree/a', 'wb').write('foobar\n')
 
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        d = delta.compare_trees(self.tree.basis_tree(), self.tree)
 
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        self.assertEqual([], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([('a', 'a-id', 'file', True, False)], d.modified)
 
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    def test_tree_meta_modified(self):
 
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        tt = transform.TreeTransform(self.tree)
 
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        trans_id = tt.trans_id_tree_path('b/c')
 
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        tt.set_executability(True, trans_id)
 
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        tt.apply()
 
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        d = delta.compare_trees(self.tree.basis_tree(), self.tree)
 
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        self.assertEqual([], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([('b/c', 'c-id', 'file', False, True)], d.modified)
 
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    def test_tree_renamed(self):
 
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        self.tree.rename_one('a', 'd')
 
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        d = delta.compare_trees(self.tree.basis_tree(), self.tree)
 
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        self.assertEqual([], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([('a', 'd', 'a-id', 'file', False, False)], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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    def test_tree_renamed_modified(self):
 
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        self.tree.rename_one('a', 'd')
 
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        open('tree/d', 'wb').write('bar\n')
 
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        d = delta.compare_trees(self.tree.basis_tree(), self.tree)
 
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        self.assertEqual([], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([('a', 'd', 'a-id', 'file', True, False)], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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    def test_tree_renamed_meta_modified(self):
 
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        tt = transform.TreeTransform(self.tree)
 
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        trans_id = tt.trans_id_tree_path('b/c')
 
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        parent_trans_id = tt.trans_id_tree_path('')
 
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        tt.adjust_path('e', parent_trans_id, trans_id)
 
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        tt.set_executability(True, trans_id)
 
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        tt.apply()
 
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        d = delta.compare_trees(self.tree.basis_tree(), self.tree)
 
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        self.assertEqual([], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([('b/c', 'e', 'c-id', 'file', False, True)], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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    def test_subset_file(self):
 
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        empty_tree = self.tree.branch.repository.revision_tree(
 
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                        revision.NULL_REVISION)
 
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        d = delta.compare_trees(empty_tree, self.tree.basis_tree(),
 
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                                specific_files=['a'])
 
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        self.assertEqual([('a', 'a-id', 'file')], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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    def test_subset_multiple(self):
 
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        empty_tree = self.tree.branch.repository.revision_tree(
 
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                        revision.NULL_REVISION)
 
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        d = delta.compare_trees(empty_tree, self.tree,
 
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                                specific_files=['a', 'b/c'])
 
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        self.assertEqual([('a', 'a-id', 'file'),
 
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                          ('b/c', 'c-id', 'file'),
 
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                         ], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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    def test_subset_dir(self):
 
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        """Restricting to a directory checks the dir, and all children."""
 
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        empty_tree = self.tree.branch.repository.revision_tree(
 
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                        revision.NULL_REVISION)
 
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        d = delta.compare_trees(empty_tree, self.tree,
 
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                                specific_files=['b'])
 
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        self.assertEqual([('b', 'b-id', 'directory'),
 
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                          ('b/c', 'c-id', 'file'),
 
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                         ], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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    def test_unknown(self):
 
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        self.build_tree(['tree/unknown'])
 
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        # Unknowns are not reported by compare_trees
 
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        d = delta.compare_trees(self.tree.basis_tree(), self.tree)
 
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        self.assertEqual([], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([], d.modified)
 
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    def test_unknown_specific_file(self):
 
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        self.build_tree(['tree/unknown'])
 
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        empty_tree = self.tree.branch.repository.revision_tree(
 
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                        revision.NULL_REVISION)
 
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        # If a specific_files list is present, even if none of the
 
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        # files are versioned, only paths that are present in the list
 
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        # should be compared
 
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        d = delta.compare_trees(empty_tree, self.tree,
 
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                                specific_files=['unknown'])
 
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        self.assertEqual([], d.added)
 
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        self.assertEqual([], d.removed)
 
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        self.assertEqual([], d.renamed)
 
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        self.assertEqual([], d.modified)