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# Copyright 2015 Lars Wirzenius
#
# 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 3 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, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
import unittest
import obnamlib
class GATreeTests(unittest.TestCase):
def setUp(self):
self.blob_store = obnamlib.BlobStore()
self.blob_store.set_bag_store(DummyBagStore())
self.tree = obnamlib.GATree()
self.tree.set_blob_store(self.blob_store)
def test_has_no_root_dir_initially(self):
self.assertEqual(self.tree.get_directory('/'), None)
def test_sets_root_dir(self):
dir_obj = obnamlib.GADirectory()
self.tree.set_directory('/', dir_obj)
self.assertEqual(self.tree.get_directory('/'), dir_obj)
def test_sets_subdir_and_creates_all_parents(self):
dir_obj = obnamlib.GADirectory()
self.tree.set_directory('/foo/bar', dir_obj)
self.assertEqual(self.tree.get_directory('/foo/bar'), dir_obj)
self.assertNotEqual(self.tree.get_directory('/foo'), None)
self.assertNotEqual(self.tree.get_directory('/'), None)
def test_stores_objects_persistently(self):
orig = obnamlib.GADirectory()
self.tree.set_directory('/foo/bar', orig)
self.tree.flush()
tree2 = obnamlib.GATree()
tree2.set_blob_store(self.blob_store)
tree2.set_root_directory_id(self.tree.get_root_directory_id())
retrieved = tree2.get_directory('/foo/bar')
self.assertEqual(orig.as_dict(), retrieved.as_dict())
def test_updates_subdirectory_of_persistent_directory(self):
# Create original subdir.
self.tree.set_directory('/foo/bar', obnamlib.GADirectory())
self.tree.flush()
# Load new tree, so no cached objects. Update a subdir with a file.
tree2 = obnamlib.GATree()
tree2.set_blob_store(self.blob_store)
tree2.set_root_directory_id(self.tree.get_root_directory_id())
new_subdir = obnamlib.GADirectory()
new_subdir.add_file('README')
tree2.set_directory('/foo/bar', new_subdir)
tree2.flush()
# Another new tree. The added file should be visible.
tree3 = obnamlib.GATree()
tree3.set_blob_store(self.blob_store)
tree3.set_root_directory_id(tree2.get_root_directory_id())
subdir = tree3.get_directory('/foo/bar')
self.assertIn('README', subdir.get_file_basenames())
def test_removes_root_directory(self):
dir_obj = obnamlib.GADirectory()
self.tree.set_directory('/', dir_obj)
self.tree.remove_directory('/')
self.assertEqual(self.tree.get_directory('/'), None)
self.assertEqual(self.tree.get_root_directory_id(), None)
def test_removes_directory(self):
dir_obj = obnamlib.GADirectory()
self.tree.set_directory('/foo/bar', dir_obj)
self.tree.remove_directory('/foo/bar')
self.assertEqual(self.tree.get_directory('/foo/bar'), None)
def test_removes_persistent_directory(self):
dir_obj = obnamlib.GADirectory()
self.tree.set_directory('/foo/bar', dir_obj)
self.tree.flush()
tree2 = obnamlib.GATree()
tree2.set_blob_store(self.blob_store)
tree2.set_root_directory_id(self.tree.get_root_directory_id())
tree2.remove_directory('/foo/bar')
self.assertEqual(tree2.get_directory('/foo/bar'), None)
def test_removes_persistent_directory_persistently(self):
dir_obj = obnamlib.GADirectory()
self.tree.set_directory('/foo/bar', dir_obj)
self.tree.flush()
tree2 = obnamlib.GATree()
tree2.set_blob_store(self.blob_store)
tree2.set_root_directory_id(self.tree.get_root_directory_id())
tree2.remove_directory('/foo/bar')
tree2.flush()
tree3 = obnamlib.GATree()
tree3.set_blob_store(self.blob_store)
tree3.set_root_directory_id(tree2.get_root_directory_id())
self.assertEqual(tree3.get_directory('/foo/bar'), None)
def test_removes_nonexistent_directory(self):
self.tree.remove_directory('/foo/bar')
self.assertEqual(self.tree.get_directory('/foo/bar'), None)
def test_removes_nonexistent_directory_when_tree_is_not_empty(self):
dir_obj = obnamlib.GADirectory()
self.tree.set_directory('/foo/bar', dir_obj)
self.tree.flush()
tree2 = obnamlib.GATree()
tree2.set_blob_store(self.blob_store)
tree2.set_root_directory_id(self.tree.get_root_directory_id())
tree2.remove_directory('/some/other/path')
self.assertEqual(tree2.get_directory('/some/other/path'), None)
self.assertEqual(
self.tree.get_root_directory_id(),
tree2.get_root_directory_id())
class DummyBagStore(object):
def __init__(self):
self._bags = {}
self._prev_id = 0
def reserve_bag_id(self):
self._prev_id += 1
return self._prev_id
def put_bag(self, bag):
self._bags[bag.get_id()] = bag
def has_bag(self, bag_id):
return bag_id in self._bags
def get_bag(self, bag_id):
return self._bags[bag_id]
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