/brz/remove-bazaar

# Copyright (C) 2006 by 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 of the parent related functions of WorkingTrees."""

import os

from bzrlib.tests.workingtree_implementations import TestCaseWithWorkingTree

from bzrlib.branch import Branch

from bzrlib.revision import Revision

from bzrlib.uncommit import uncommit

import bzrlib.xml5

class TestParents(TestCaseWithWorkingTree):

    def assertConsistentParents(self, expected, tree):

        self.assertEqual(expected, tree.get_parent_ids())

        if expected == []:

            self.assertEqual(None, tree.last_revision())

        else:

            self.assertEqual(expected[0], tree.last_revision())

        self.assertEqual(expected[1:], tree.pending_merges())

class TestSetParents(TestParents):

    def test_set_no_parents(self):

        t = self.make_branch_and_tree('.')

        t.set_parent_trees([])

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

        # now give it a real parent, and then set it to no parents again.

        t.commit('first post')

        t.set_parent_trees([])

        self.assertConsistentParents([], t)

    def test_set_one_ghost_parent(self):

        t = self.make_branch_and_tree('.')

        t.set_parent_trees([('missing-revision-id', None)])

        self.assertConsistentParents(['missing-revision-id'], t)

    def test_set_two_parents_one_ghost(self):

        t = self.make_branch_and_tree('.')

        revision_in_repo = t.commit('first post')

        # remove the tree's history

        uncommit(t.branch, tree=t)

        rev_tree = t.branch.repository.revision_tree(revision_in_repo)

        t.set_parent_trees([(revision_in_repo, rev_tree),

            ('another-missing', None)])

        self.assertConsistentParents([revision_in_repo, 'another-missing'], t)

    def test_set_three_parents(self):

        t = self.make_branch_and_tree('.')

        first_revision = t.commit('first post')

        uncommit(t.branch, tree=t)

        second_revision = t.commit('second post')

        uncommit(t.branch, tree=t)

        third_revision = t.commit('third post')

        uncommit(t.branch, tree=t)

        rev_tree1 = t.branch.repository.revision_tree(first_revision)

        rev_tree2 = t.branch.repository.revision_tree(second_revision)

        rev_tree3 = t.branch.repository.revision_tree(third_revision)

        t.set_parent_trees([(first_revision, rev_tree1),

            (second_revision, rev_tree2),

            (third_revision, rev_tree3)])

        self.assertConsistentParents(

            [first_revision, second_revision, third_revision], t)