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bzrlib/tests/blackbox/test_ancestry.py
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# -*- coding: utf-8 -*-
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# Copyright (C) 2005, 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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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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import os
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from bzrlib.builtins import merge
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from bzrlib.tests import TestCaseWithTransport
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from bzrlib.workingtree import WorkingTree
 
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from bzrlib.branch import Branch
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class TestAncestry(TestCaseWithTransport):
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    def test_ancestry(self):
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        """Tests 'ancestry' command"""
 
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    def _build_branches(self):
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        a_wt = self.make_branch_and_tree('A')
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        open('A/foo', 'wb').write('1111\n')
 
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        self.build_tree_contents([('A/foo', '1111\n')])
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        a_wt.add('foo')
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        a_wt.commit('added foo',rev_id='A1')
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        self.run_bzr_captured(['branch', 'A', 'B'])
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        b_wt = WorkingTree.open('B')
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        open('B/foo','wb').write('1111\n22\n')
 
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        b_wt = a_wt.bzrdir.sprout('B').open_workingtree()
 
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        self.build_tree_contents([('B/foo', '1111\n22\n')])
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        b_wt.commit('modified B/foo',rev_id='B1')
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        open('A/foo', 'wb').write('000\n1111\n')
 
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        self.build_tree_contents([('A/foo', '000\n1111\n')])
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        a_wt.commit('modified A/foo',rev_id='A2')
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        merge(['B',-1],['B',1],this_dir='A')
 
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        a_wt.merge_from_branch(b_wt.branch, b_wt.last_revision(),
 
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            b_wt.branch.get_rev_id(1))
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        a_wt.commit('merged B into A',rev_id='A3')
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        self.run_bzr('ancestry')
 
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        return a_wt, b_wt
 
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    def _check_ancestry(self, location='', result=None):
 
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        out = self.run_bzr(['ancestry', location])[0]
 
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        if result is not None:
 
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            self.assertEqualDiff(result, out)
 
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        else:
 
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            # A2 and B1 can be in either order, because they are parallel, and
 
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            # thus their topological order is not defined
 
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            result = "A1\nB1\nA2\nA3\n"
 
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            if result != out:
 
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                result = "A1\nA2\nB1\nA3\n"
 
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            self.assertEqualDiff(result, out)
 
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    def test_ancestry(self):
 
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        """Tests 'ancestry' command"""
 
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        self._build_branches()
 
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        os.chdir('A')
 
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        self._check_ancestry()
 
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    def test_ancestry_with_location(self):
 
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        """Tests 'ancestry' command with a specified location."""
 
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        self._build_branches()
 
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        self._check_ancestry('A')
 
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    def test_ancestry_with_repo_branch(self):
 
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        """Tests 'ancestry' command with a location that is a
 
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        repository branch."""
 
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        a_tree = self._build_branches()[0]
 
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        self.make_repository('repo', shared=True)
 
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        a_tree.bzrdir.sprout('repo/A')
 
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        self._check_ancestry('repo/A')
 
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    def test_ancestry_with_checkout(self):
 
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        """Tests 'ancestry' command with a location that is a
 
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        checkout of a repository branch."""
 
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        a_tree = self._build_branches()[0]
 
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        self.make_repository('repo', shared=True)
 
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        repo_branch = a_tree.bzrdir.sprout('repo/A').open_branch()
 
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        repo_branch.create_checkout('A-checkout')
 
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        self._check_ancestry('A-checkout')
 
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    def test_ancestry_with_lightweight_checkout(self):
 
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        """Tests 'ancestry' command with a location that is a
 
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        lightweight checkout of a repository branch."""
 
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        a_tree = self._build_branches()[0]
 
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        self.make_repository('repo', shared=True)
 
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        repo_branch = a_tree.bzrdir.sprout('repo/A').open_branch()
 
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        repo_branch.create_checkout('A-checkout', lightweight=True)
 
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        self._check_ancestry('A-checkout')
 
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    def test_ancestry_with_truncated_checkout(self):
 
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        """Tests 'ancestry' command with a location that is a
 
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        checkout of a repository branch with a shortened revision history."""
 
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        a_tree = self._build_branches()[0]
 
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        self.make_repository('repo', shared=True)
 
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        repo_branch = a_tree.bzrdir.sprout('repo/A').open_branch()
 
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        repo_branch.create_checkout('A-checkout',
 
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                                    revision_id=repo_branch.get_rev_id(2))
 
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        self._check_ancestry('A-checkout', "A1\nA2\n")
 
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    def test_ancestry_with_truncated_lightweight_checkout(self):
 
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        """Tests 'ancestry' command with a location that is a lightweight
 
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        checkout of a repository branch with a shortened revision history."""
 
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        a_tree = self._build_branches()[0]
 
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        self.make_repository('repo', shared=True)
 
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        repo_branch = a_tree.bzrdir.sprout('repo/A').open_branch()
 
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        repo_branch.create_checkout('A-checkout',
 
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                                    revision_id=repo_branch.get_rev_id(2),
 
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                                    lightweight=True)
 
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        self._check_ancestry('A-checkout', "A1\nA2\n")