~bzr-pqm/bzr/bzr.dev

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

from cStringIO import StringIO

from bzrlib.tests import per_workingtree

class TestPull(per_workingtree.TestCaseWithWorkingTree):

    def get_pullable_trees(self):

        self.build_tree(['from/', 'from/file', 'to/'])

        tree = self.make_branch_and_tree('from')

        tree.add('file')

        tree.commit('foo', rev_id='A')

        tree_b = self.make_branch_and_tree('to')

        return tree, tree_b

    def test_pull(self):

        tree_a, tree_b = self.get_pullable_trees()

        tree_b.pull(tree_a.branch)

        self.failUnless(tree_b.branch.repository.has_revision('A'))

        self.assertEqual(['A'], tree_b.get_parent_ids())

    def test_pull_overwrites(self):

        tree_a, tree_b = self.get_pullable_trees()

        tree_b.commit('foo', rev_id='B')

        self.assertEqual(['B'], tree_b.branch.revision_history())

        tree_b.pull(tree_a.branch, overwrite=True)

        self.failUnless(tree_b.branch.repository.has_revision('A'))

        self.failUnless(tree_b.branch.repository.has_revision('B'))

        self.assertEqual(['A'], tree_b.get_parent_ids())

    def test_pull_merges_tree_content(self):

        tree_a, tree_b = self.get_pullable_trees()

        tree_b.pull(tree_a.branch)

        self.assertFileEqual('contents of from/file\n', 'to/file')

    def test_pull_changes_root_id(self):

        tree = self.make_branch_and_tree('from')

        tree.set_root_id('first_root_id')

        self.build_tree(['from/file'])

        tree.add(['file'])

        tree.commit('first')

        to_tree = tree.bzrdir.sprout('to').open_workingtree()

        self.assertEqual('first_root_id', to_tree.get_root_id())

        tree.set_root_id('second_root_id')

        tree.commit('second')

        to_tree.pull(tree.branch)

        self.assertEqual('second_root_id', to_tree.get_root_id())