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# Copyright (C) 2008 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Tests for the get_parent_map API."""
from bzrlib import revision
from bzrlib.tests.per_repository import TestCaseWithRepository
class TestGetParentMap(TestCaseWithRepository):
def test_missing_revision(self):
tree = self.make_branch_and_tree('.')
repo = tree.branch.repository
repo.lock_read()
self.addCleanup(repo.unlock)
self.assertEqual({}, repo.get_parent_map(['non-existant']))
def test_multiple_parents(self):
tree = self.make_branch_and_tree('.')
rev1 = tree.commit('first')
rev2 = tree.commit('second')
tree.set_parent_ids([rev1, rev2])
tree.branch.set_last_revision_info(1, rev1)
rev3 = tree.commit('third')
repo = tree.branch.repository
repo.lock_read()
self.addCleanup(repo.unlock)
self.assertEqual({rev3:(rev1, rev2)},
repo.get_parent_map([rev3]))
self.assertEqual({rev1:(revision.NULL_REVISION,),
rev2:(rev1,),
rev3:(rev1, rev2),
}, repo.get_parent_map([rev1, rev2, rev3]))
def test_no_parents(self):
tree = self.make_branch_and_tree('.')
rev1 = tree.commit('first')
repo = tree.branch.repository
repo.lock_read()
self.addCleanup(repo.unlock)
self.assertEqual({rev1:(revision.NULL_REVISION,)},
repo.get_parent_map([rev1]))
def test_none(self):
tree = self.make_branch_and_tree('.')
rev1 = tree.commit('first')
repo = tree.branch.repository
repo.lock_read()
self.addCleanup(repo.unlock)
self.assertRaises(ValueError,
repo.get_parent_map, [None])
def test_null_revision(self):
tree = self.make_branch_and_tree('.')
repo = tree.branch.repository
repo.lock_read()
self.addCleanup(repo.unlock)
self.assertEqual({revision.NULL_REVISION:()},
repo.get_parent_map([revision.NULL_REVISION]))
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