~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2006, 2007, 2009, 2010 Canonical Ltd

# -*- coding: utf-8 -*-

#

# 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

class TestFindMergeBase(TestCaseWithTransport):

    def test_find_merge_base(self):

        a_tree = self.make_branch_and_tree('a')

        a_tree.commit(message='foo', allow_pointless=True)

        b_tree = a_tree.bzrdir.sprout('b').open_workingtree()

        q = self.run_bzr('find-merge-base a b')[0]

        a_tree.commit(message='bar', allow_pointless=True)

        b_tree.commit(message='baz', allow_pointless=True)

        r = self.run_bzr('find-merge-base b a')[0]

        self.assertEqual(q, r)

    def test_find_null_merge_base(self):

        tree = self.make_branch_and_tree('foo')

        tree.commit('message')

        tree2 = self.make_branch_and_tree('bar')

        r = self.run_bzr('find-merge-base foo bar')[0]

        self.assertEqual('merge base is revision null:\n', r)