/brz/remove-bazaar

# Copyright (C) 2006 Canonical Ltd

# Authors:  Robert Collins <robert.collins@canonical.com>

#

# 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

"""Tests for interface conformance of 'workingtree.get_parent_ids'"""

from breezy.tests import TestNotApplicable

from breezy.tests.per_workingtree import TestCaseWithWorkingTree

class TestGetParentIds(TestCaseWithWorkingTree):

    def test_get_parent_ids(self):

        t = self.make_branch_and_tree('t1')

        self.assertEqual([], t.get_parent_ids())

        rev1_id = t.commit('foo', allow_pointless=True)

        self.assertEqual([rev1_id], t.get_parent_ids())

        t2 = t.controldir.sprout('t2').open_workingtree()

        rev2_id = t2.commit('foo', allow_pointless=True)

        self.assertEqual([rev2_id], t2.get_parent_ids())

        t.merge_from_branch(t2.branch)

        self.assertEqual([rev1_id, rev2_id], t.get_parent_ids())

        for parent_id in t.get_parent_ids():

            self.assertIsInstance(parent_id, bytes)

    def test_pending_merges(self):

        """Test the correspondence between set pending merges and get_parent_ids."""

        wt = self.make_branch_and_tree('.')

        self.assertEqual([], wt.get_parent_ids())

        if not wt._format. supports_righthand_parent_id_as_ghost:

            raise TestNotApplicable(

                'format does not support right hand side parents '

                'that are ghosts')

        # the first pending merge replaces the 'last revision' because

        # 'last revision' is shorthand for 'left most parent'

        wt.add_pending_merge(b'foo@azkhazan-123123-abcabc')

        self.assertEqual([b'foo@azkhazan-123123-abcabc'], wt.get_parent_ids())

        # adding a merge which is already in the parents list gets ignored.

        wt.add_pending_merge(b'foo@azkhazan-123123-abcabc')

        self.assertEqual([b'foo@azkhazan-123123-abcabc'], wt.get_parent_ids())

        # adding a different merge results in it being appended to the list -

        # order is preserved.

        wt.add_pending_merge(b'wibble@fofof--20050401--1928390812')

        self.assertEqual([b'foo@azkhazan-123123-abcabc',

                          b'wibble@fofof--20050401--1928390812'],

                         wt.get_parent_ids())