~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006 Canonical Ltd

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

import os

from bzrlib.tests import TestCaseWithTransport

from bzrlib.workingtree import WorkingTree

from bzrlib.branch import Branch

class TestAncestry(TestCaseWithTransport):

    def _build_branches(self):

        a_wt = self.make_branch_and_tree('A')

        self.build_tree_contents([('A/foo', '1111\n')])

        a_wt.add('foo')

        a_wt.commit('added foo',rev_id='A1')

        b_wt = a_wt.bzrdir.sprout('B').open_workingtree()

        self.build_tree_contents([('B/foo', '1111\n22\n')])

        b_wt.commit('modified B/foo',rev_id='B1')

        self.build_tree_contents([('A/foo', '000\n1111\n')])

        a_wt.commit('modified A/foo',rev_id='A2')

        a_wt.merge_from_branch(b_wt.branch, b_wt.last_revision(),

            b_wt.branch.get_rev_id(1))

        a_wt.commit('merged B into A',rev_id='A3')

        return a_wt, b_wt

    def _check_ancestry(self, location='', result=None):

        out = self.run_bzr(['ancestry', location])[0]

        if result is not None:

            self.assertEqualDiff(result, out)

        else:

            # A2 and B1 can be in either order, because they are parallel, and

            # thus their topological order is not defined

            result = "A1\nB1\nA2\nA3\n"

            if result != out:

                result = "A1\nA2\nB1\nA3\n"

            self.assertEqualDiff(result, out)

    def test_ancestry(self):

        """Tests 'ancestry' command"""

        self._build_branches()

        os.chdir('A')

        self._check_ancestry()

    def test_ancestry_with_location(self):

        """Tests 'ancestry' command with a specified location."""

        self._build_branches()

        self._check_ancestry('A')

    def test_ancestry_with_repo_branch(self):

        """Tests 'ancestry' command with a location that is a

        repository branch."""

        a_tree = self._build_branches()[0]

        self.make_repository('repo', shared=True)

        a_tree.bzrdir.sprout('repo/A')

        self._check_ancestry('repo/A')

    def test_ancestry_with_checkout(self):

        """Tests 'ancestry' command with a location that is a

        checkout of a repository branch."""

        a_tree = self._build_branches()[0]

        self.make_repository('repo', shared=True)

        repo_branch = a_tree.bzrdir.sprout('repo/A').open_branch()

        repo_branch.create_checkout('A-checkout')

        self._check_ancestry('A-checkout')

    def test_ancestry_with_lightweight_checkout(self):

        """Tests 'ancestry' command with a location that is a

        lightweight checkout of a repository branch."""

        a_tree = self._build_branches()[0]

        self.make_repository('repo', shared=True)

        repo_branch = a_tree.bzrdir.sprout('repo/A').open_branch()

        repo_branch.create_checkout('A-checkout', lightweight=True)

        self._check_ancestry('A-checkout')

    def test_ancestry_with_truncated_checkout(self):

        """Tests 'ancestry' command with a location that is a

        checkout of a repository branch with a shortened revision history."""

        a_tree = self._build_branches()[0]

        self.make_repository('repo', shared=True)

        repo_branch = a_tree.bzrdir.sprout('repo/A').open_branch()

        repo_branch.create_checkout('A-checkout',

                                    revision_id=repo_branch.get_rev_id(2))

        self._check_ancestry('A-checkout', "A1\nA2\n")

    def test_ancestry_with_truncated_lightweight_checkout(self):

        """Tests 'ancestry' command with a location that is a lightweight

        checkout of a repository branch with a shortened revision history."""

        a_tree = self._build_branches()[0]

        self.make_repository('repo', shared=True)

        repo_branch = a_tree.bzrdir.sprout('repo/A').open_branch()

        repo_branch.create_checkout('A-checkout',

                                    revision_id=repo_branch.get_rev_id(2),

                                    lightweight=True)

        self._check_ancestry('A-checkout', "A1\nA2\n")