~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2006 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 WorkingTree.read_working_inventory."""

from bzrlib import errors, inventory

from bzrlib.tests import TestNotApplicable

from bzrlib.tests.per_workingtree import TestCaseWithWorkingTree

from bzrlib.workingtree import InventoryWorkingTree

class TestReadWorkingInventory(TestCaseWithWorkingTree):

    def test_trivial_read(self):

        tree = self.make_branch_and_tree('t1')

        if not isinstance(tree, InventoryWorkingTree):

            raise TestNotApplicable("read_working_inventory not usable on "

                "non-inventory working trees")

        tree.lock_read()

        self.assertIsInstance(tree.read_working_inventory(), inventory.Inventory)

        tree.unlock()

    def test_read_after_inventory_modification(self):

        tree = self.make_branch_and_tree('tree')

        if not isinstance(tree, InventoryWorkingTree):

            raise TestNotApplicable("read_working_inventory not usable on "

                "non-inventory working trees")

        # prepare for a series of changes that will modify the

        # inventory

        tree.lock_write()

        try:

            tree.set_root_id('new-root')

            # having dirtied the inventory, we can now expect an

            # InventoryModified exception when doing a read_working_inventory()

            # OR, the call can be ignored and the changes preserved

            try:

                tree.read_working_inventory()

            except errors.InventoryModified:

                pass

            else:

                self.assertEqual('new-root', tree.path2id(''))

        finally:

            tree.unlock()