/brz/remove-bazaar

# Copyright (C) 2004, 2005 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Tests for branch.pull behaviour."""

import os

from bzrlib.branch import Branch

from bzrlib import errors

from bzrlib.tests import TestCaseWithTransport

class TestPull(TestCaseWithTransport):

    def test_pull_convergence_simple(self):

        # when revisions are pulled, the left-most accessible parents must 

        # become the revision-history.

        parent = self.make_branch_and_tree('parent')

        parent.commit('1st post', rev_id='P1', allow_pointless=True)

        mine = parent.bzrdir.sprout('mine').open_workingtree()

        mine.commit('my change', rev_id='M1', allow_pointless=True)

        parent.merge_from_branch(mine.branch)

        parent.commit('merge my change', rev_id='P2')

        mine.pull(parent.branch)

        self.assertEqual(['P1', 'P2'], mine.branch.revision_history())

    def test_pull_merged_indirect(self):

        # it should be possible to do a pull from one branch into another

        # when the tip of the target was merged into the source branch

        # via a third branch - so its buried in the ancestry and is not

        # directly accessible.

        parent = self.make_branch_and_tree('parent')

        parent.commit('1st post', rev_id='P1', allow_pointless=True)

        mine = parent.bzrdir.sprout('mine').open_workingtree()

        mine.commit('my change', rev_id='M1', allow_pointless=True)

        other = parent.bzrdir.sprout('other').open_workingtree()

        other.merge_from_branch(mine.branch)

        other.commit('merge my change', rev_id='O2')

        parent.merge_from_branch(other.branch)

        parent.commit('merge other', rev_id='P2')

        mine.pull(parent.branch)

        self.assertEqual(['P1', 'P2'], mine.branch.revision_history())

    def test_pull_updates_checkout_and_master(self):

        """Pulling into a checkout updates the checkout and the master branch"""

        master_tree = self.make_branch_and_tree('master')

        rev1 = master_tree.commit('master')

        checkout = master_tree.branch.create_checkout('checkout')

        other = master_tree.branch.bzrdir.sprout('other').open_workingtree()

        rev2 = other.commit('other commit')

        # now pull, which should update both checkout and master.

        checkout.branch.pull(other.branch)

        self.assertEqual([rev1, rev2], checkout.branch.revision_history())

        self.assertEqual([rev1, rev2], master_tree.branch.revision_history())

    def test_pull_raises_specific_error_on_master_connection_error(self):

        master_tree = self.make_branch_and_tree('master')

        checkout = master_tree.branch.create_checkout('checkout')

        other = master_tree.branch.bzrdir.sprout('other').open_workingtree()

        # move the branch out of the way on disk to cause a connection

        # error.

        os.rename('master', 'master_gone')

        # try to pull, which should raise a BoundBranchConnectionFailure.

        self.assertRaises(errors.BoundBranchConnectionFailure,

                checkout.branch.pull, other.branch)