~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2005, 2006, 2007 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


from bzrlib import errors, chk_map, inventory, osutils
from bzrlib.inventory import (CHKInventory, Inventory, ROOT_ID, InventoryFile,
    InventoryDirectory, InventoryEntry, TreeReference)
from bzrlib.tests import TestCase, TestCaseWithTransport


class TestInventoryEntry(TestCase):

    def test_file_kind_character(self):
        file = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
        self.assertEqual(file.kind_character(), '')

    def test_dir_kind_character(self):
        dir = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
        self.assertEqual(dir.kind_character(), '/')

    def test_link_kind_character(self):
        dir = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
        self.assertEqual(dir.kind_character(), '')

    def test_dir_detect_changes(self):
        left = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
        left.text_sha1 = 123
        left.executable = True
        left.symlink_target='foo'
        right = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
        right.text_sha1 = 321
        right.symlink_target='bar'
        self.assertEqual((False, False), left.detect_changes(right))
        self.assertEqual((False, False), right.detect_changes(left))

    def test_file_detect_changes(self):
        left = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
        left.text_sha1 = 123
        right = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
        right.text_sha1 = 123
        self.assertEqual((False, False), left.detect_changes(right))
        self.assertEqual((False, False), right.detect_changes(left))
        left.executable = True
        self.assertEqual((False, True), left.detect_changes(right))
        self.assertEqual((False, True), right.detect_changes(left))
        right.text_sha1 = 321
        self.assertEqual((True, True), left.detect_changes(right))
        self.assertEqual((True, True), right.detect_changes(left))

    def test_symlink_detect_changes(self):
        left = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
        left.text_sha1 = 123
        left.executable = True
        left.symlink_target='foo'
        right = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
        right.text_sha1 = 321
        right.symlink_target='foo'
        self.assertEqual((False, False), left.detect_changes(right))
        self.assertEqual((False, False), right.detect_changes(left))
        left.symlink_target = 'different'
        self.assertEqual((True, False), left.detect_changes(right))
        self.assertEqual((True, False), right.detect_changes(left))

    def test_file_has_text(self):
        file = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
        self.failUnless(file.has_text())

    def test_directory_has_text(self):
        dir = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
        self.failIf(dir.has_text())

    def test_link_has_text(self):
        link = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
        self.failIf(link.has_text())

    def test_make_entry(self):
        self.assertIsInstance(inventory.make_entry("file", "name", ROOT_ID),
            inventory.InventoryFile)
        self.assertIsInstance(inventory.make_entry("symlink", "name", ROOT_ID),
            inventory.InventoryLink)
        self.assertIsInstance(inventory.make_entry("directory", "name", ROOT_ID),
            inventory.InventoryDirectory)

    def test_make_entry_non_normalized(self):
        orig_normalized_filename = osutils.normalized_filename

        try:
            osutils.normalized_filename = osutils._accessible_normalized_filename
            entry = inventory.make_entry("file", u'a\u030a', ROOT_ID)
            self.assertEqual(u'\xe5', entry.name)
            self.assertIsInstance(entry, inventory.InventoryFile)

            osutils.normalized_filename = osutils._inaccessible_normalized_filename
            self.assertRaises(errors.InvalidNormalization,
                    inventory.make_entry, 'file', u'a\u030a', ROOT_ID)
        finally:
            osutils.normalized_filename = orig_normalized_filename


class TestDescribeChanges(TestCase):

    def test_describe_change(self):
        # we need to test the following change combinations:
        # rename
        # reparent
        # modify
        # gone
        # added
        # renamed/reparented and modified
        # change kind (perhaps can't be done yet?)
        # also, merged in combination with all of these?
        old_a = InventoryFile('a-id', 'a_file', ROOT_ID)
        old_a.text_sha1 = '123132'
        old_a.text_size = 0
        new_a = InventoryFile('a-id', 'a_file', ROOT_ID)
        new_a.text_sha1 = '123132'
        new_a.text_size = 0

        self.assertChangeDescription('unchanged', old_a, new_a)

        new_a.text_size = 10
        new_a.text_sha1 = 'abcabc'
        self.assertChangeDescription('modified', old_a, new_a)

        self.assertChangeDescription('added', None, new_a)
        self.assertChangeDescription('removed', old_a, None)
        # perhaps a bit questionable but seems like the most reasonable thing...
        self.assertChangeDescription('unchanged', None, None)

        # in this case it's both renamed and modified; show a rename and
        # modification:
        new_a.name = 'newfilename'
        self.assertChangeDescription('modified and renamed', old_a, new_a)

        # reparenting is 'renaming'
        new_a.name = old_a.name
        new_a.parent_id = 'somedir-id'
        self.assertChangeDescription('modified and renamed', old_a, new_a)

        # reset the content values so its not modified
        new_a.text_size = old_a.text_size
        new_a.text_sha1 = old_a.text_sha1
        new_a.name = old_a.name

        new_a.name = 'newfilename'
        self.assertChangeDescription('renamed', old_a, new_a)

        # reparenting is 'renaming'
        new_a.name = old_a.name
        new_a.parent_id = 'somedir-id'
        self.assertChangeDescription('renamed', old_a, new_a)

    def assertChangeDescription(self, expected_change, old_ie, new_ie):
        change = InventoryEntry.describe_change(old_ie, new_ie)
        self.assertEqual(expected_change, change)


class TestCHKInventory(TestCaseWithTransport):

    def get_chk_bytes(self):
        # The easiest way to get a CHK store is a development6 repository and
        # then work with the chk_bytes attribute directly.
        repo = self.make_repository(".", format="development6-rich-root")
        repo.lock_write()
        self.addCleanup(repo.unlock)
        repo.start_write_group()
        self.addCleanup(repo.abort_write_group)
        return repo.chk_bytes

    def read_bytes(self, chk_bytes, key):
        stream = chk_bytes.get_record_stream([key], 'unordered', True)
        return stream.next().get_bytes_as("fulltext")

    def test_deserialise_gives_CHKInventory(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(chk_inv.to_lines())
        new_inv = CHKInventory.deserialise(chk_bytes, bytes, ("revid",))
        self.assertEqual("revid", new_inv.revision_id)
        self.assertEqual("directory", new_inv.root.kind)
        self.assertEqual(inv.root.file_id, new_inv.root.file_id)
        self.assertEqual(inv.root.parent_id, new_inv.root.parent_id)
        self.assertEqual(inv.root.name, new_inv.root.name)
        self.assertEqual("rootrev", new_inv.root.revision)
        self.assertEqual('plain', new_inv._search_key_name)

    def test_deserialise_wrong_revid(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(chk_inv.to_lines())
        self.assertRaises(ValueError, CHKInventory.deserialise, chk_bytes,
            bytes, ("revid2",))

    def test_captures_rev_root_byid(self):
        inv = Inventory()
        inv.revision_id = "foo"
        inv.root.revision = "bar"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        lines = chk_inv.to_lines()
        self.assertEqual([
            'chkinventory:\n',
            'revision_id: foo\n',
            'root_id: TREE_ROOT\n',
            'parent_id_basename_to_file_id: sha1:eb23f0ad4b07f48e88c76d4c94292be57fb2785f\n',
            'id_to_entry: sha1:debfe920f1f10e7929260f0534ac9a24d7aabbb4\n',
            ], lines)
        chk_inv = CHKInventory.deserialise(chk_bytes, ''.join(lines), ('foo',))
        self.assertEqual('plain', chk_inv._search_key_name)

    def test_captures_parent_id_basename_index(self):
        inv = Inventory()
        inv.revision_id = "foo"
        inv.root.revision = "bar"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        lines = chk_inv.to_lines()
        self.assertEqual([
            'chkinventory:\n',
            'revision_id: foo\n',
            'root_id: TREE_ROOT\n',
            'parent_id_basename_to_file_id: sha1:eb23f0ad4b07f48e88c76d4c94292be57fb2785f\n',
            'id_to_entry: sha1:debfe920f1f10e7929260f0534ac9a24d7aabbb4\n',
            ], lines)
        chk_inv = CHKInventory.deserialise(chk_bytes, ''.join(lines), ('foo',))
        self.assertEqual('plain', chk_inv._search_key_name)

    def test_captures_search_key_name(self):
        inv = Inventory()
        inv.revision_id = "foo"
        inv.root.revision = "bar"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv,
                                              search_key_name='hash-16-way')
        lines = chk_inv.to_lines()
        self.assertEqual([
            'chkinventory:\n',
            'search_key_name: hash-16-way\n',
            'root_id: TREE_ROOT\n',
            'parent_id_basename_to_file_id: sha1:eb23f0ad4b07f48e88c76d4c94292be57fb2785f\n',
            'revision_id: foo\n',
            'id_to_entry: sha1:debfe920f1f10e7929260f0534ac9a24d7aabbb4\n',
            ], lines)
        chk_inv = CHKInventory.deserialise(chk_bytes, ''.join(lines), ('foo',))
        self.assertEqual('hash-16-way', chk_inv._search_key_name)

    def test_directory_children_on_demand(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        inv.add(InventoryFile("fileid", "file", inv.root.file_id))
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(chk_inv.to_lines())
        new_inv = CHKInventory.deserialise(chk_bytes, bytes, ("revid",))
        root_entry = new_inv[inv.root.file_id]
        self.assertEqual(None, root_entry._children)
        self.assertEqual(['file'], root_entry.children.keys())
        file_direct = new_inv["fileid"]
        file_found = root_entry.children['file']
        self.assertEqual(file_direct.kind, file_found.kind)
        self.assertEqual(file_direct.file_id, file_found.file_id)
        self.assertEqual(file_direct.parent_id, file_found.parent_id)
        self.assertEqual(file_direct.name, file_found.name)
        self.assertEqual(file_direct.revision, file_found.revision)
        self.assertEqual(file_direct.text_sha1, file_found.text_sha1)
        self.assertEqual(file_direct.text_size, file_found.text_size)
        self.assertEqual(file_direct.executable, file_found.executable)

    def test_from_inventory_maximum_size(self):
        # from_inventory supports the maximum_size parameter.
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv, 120)
        self.assertEqual(120, chk_inv.id_to_entry._root_node.maximum_size)

    def test___iter__(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        inv.add(InventoryFile("fileid", "file", inv.root.file_id))
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(chk_inv.to_lines())
        new_inv = CHKInventory.deserialise(chk_bytes, bytes, ("revid",))
        fileids = list(new_inv.__iter__())
        fileids.sort()
        self.assertEqual([inv.root.file_id, "fileid"], fileids)

    def test__len__(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        inv.add(InventoryFile("fileid", "file", inv.root.file_id))
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        self.assertEqual(2, len(chk_inv))

    def test___getitem__(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        inv.add(InventoryFile("fileid", "file", inv.root.file_id))
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(chk_inv.to_lines())
        new_inv = CHKInventory.deserialise(chk_bytes, bytes, ("revid",))
        root_entry = new_inv[inv.root.file_id]
        file_entry = new_inv["fileid"]
        self.assertEqual("directory", root_entry.kind)
        self.assertEqual(inv.root.file_id, root_entry.file_id)
        self.assertEqual(inv.root.parent_id, root_entry.parent_id)
        self.assertEqual(inv.root.name, root_entry.name)
        self.assertEqual("rootrev", root_entry.revision)
        self.assertEqual("file", file_entry.kind)
        self.assertEqual("fileid", file_entry.file_id)
        self.assertEqual(inv.root.file_id, file_entry.parent_id)
        self.assertEqual("file", file_entry.name)
        self.assertEqual("filerev", file_entry.revision)
        self.assertEqual("ffff", file_entry.text_sha1)
        self.assertEqual(1, file_entry.text_size)
        self.assertEqual(True, file_entry.executable)
        self.assertRaises(errors.NoSuchId, new_inv.__getitem__, 'missing')

    def test_has_id_true(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        inv.add(InventoryFile("fileid", "file", inv.root.file_id))
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        self.assertTrue(chk_inv.has_id('fileid'))
        self.assertTrue(chk_inv.has_id(inv.root.file_id))

    def test_has_id_not(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        self.assertFalse(chk_inv.has_id('fileid'))

    def test_id2path(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        direntry = InventoryDirectory("dirid", "dir", inv.root.file_id)
        fileentry = InventoryFile("fileid", "file", "dirid")
        inv.add(direntry)
        inv.add(fileentry)
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        inv["dirid"].revision = "filerev"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(chk_inv.to_lines())
        new_inv = CHKInventory.deserialise(chk_bytes, bytes, ("revid",))
        self.assertEqual('', new_inv.id2path(inv.root.file_id))
        self.assertEqual('dir', new_inv.id2path('dirid'))
        self.assertEqual('dir/file', new_inv.id2path('fileid'))

    def test_path2id(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        direntry = InventoryDirectory("dirid", "dir", inv.root.file_id)
        fileentry = InventoryFile("fileid", "file", "dirid")
        inv.add(direntry)
        inv.add(fileentry)
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        inv["dirid"].revision = "filerev"
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(chk_inv.to_lines())
        new_inv = CHKInventory.deserialise(chk_bytes, bytes, ("revid",))
        self.assertEqual(inv.root.file_id, new_inv.path2id(''))
        self.assertEqual('dirid', new_inv.path2id('dir'))
        self.assertEqual('fileid', new_inv.path2id('dir/file'))

    def test_create_by_apply_delta_sets_root(self):
        inv = Inventory()
        inv.revision_id = "revid"
        chk_bytes = self.get_chk_bytes()
        base_inv = CHKInventory.from_inventory(chk_bytes, inv)
        inv.add_path("", "directory", "myrootid", None)
        inv.revision_id = "expectedid"
        reference_inv = CHKInventory.from_inventory(chk_bytes, inv)
        delta = [(None, "",  "myrootid", inv.root)]
        new_inv = base_inv.create_by_apply_delta(delta, "expectedid")
        self.assertEquals(reference_inv.root, new_inv.root)

    def test_create_by_apply_delta_empty_add_child(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        chk_bytes = self.get_chk_bytes()
        base_inv = CHKInventory.from_inventory(chk_bytes, inv)
        a_entry = InventoryFile("A-id", "A", inv.root.file_id)
        a_entry.revision = "filerev"
        a_entry.executable = True
        a_entry.text_sha1 = "ffff"
        a_entry.text_size = 1
        inv.add(a_entry)
        inv.revision_id = "expectedid"
        reference_inv = CHKInventory.from_inventory(chk_bytes, inv)
        delta = [(None, "A",  "A-id", a_entry)]
        new_inv = base_inv.create_by_apply_delta(delta, "expectedid")
        # new_inv should be the same as reference_inv.
        self.assertEqual(reference_inv.revision_id, new_inv.revision_id)
        self.assertEqual(reference_inv.root_id, new_inv.root_id)
        self.assertEqual(reference_inv.id_to_entry._root_node._key,
            new_inv.id_to_entry._root_node._key)

    def test_create_by_apply_delta_empty_add_child_updates_parent_id(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        chk_bytes = self.get_chk_bytes()
        base_inv = CHKInventory.from_inventory(chk_bytes, inv)
        a_entry = InventoryFile("A-id", "A", inv.root.file_id)
        a_entry.revision = "filerev"
        a_entry.executable = True
        a_entry.text_sha1 = "ffff"
        a_entry.text_size = 1
        inv.add(a_entry)
        inv.revision_id = "expectedid"
        reference_inv = CHKInventory.from_inventory(chk_bytes, inv)
        delta = [(None, "A",  "A-id", a_entry)]
        new_inv = base_inv.create_by_apply_delta(delta, "expectedid")
        # new_inv should be the same as reference_inv.
        self.assertEqual(reference_inv.revision_id, new_inv.revision_id)
        self.assertEqual(reference_inv.root_id, new_inv.root_id)
        self.assertEqual(reference_inv.id_to_entry._root_node._key,
            new_inv.id_to_entry._root_node._key)
        self.assertEqual(reference_inv.parent_id_basename_to_file_id._root_node._key,
            new_inv.parent_id_basename_to_file_id._root_node._key)

    def test_iter_changes(self):
        # Low level bootstrapping smoke test; comprehensive generic tests via
        # InterTree are coming.
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        inv.add(InventoryFile("fileid", "file", inv.root.file_id))
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        inv2 = Inventory()
        inv2.revision_id = "revid2"
        inv2.root.revision = "rootrev"
        inv2.add(InventoryFile("fileid", "file", inv.root.file_id))
        inv2["fileid"].revision = "filerev2"
        inv2["fileid"].executable = False
        inv2["fileid"].text_sha1 = "bbbb"
        inv2["fileid"].text_size = 2
        # get fresh objects.
        chk_bytes = self.get_chk_bytes()
        chk_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(chk_inv.to_lines())
        inv_1 = CHKInventory.deserialise(chk_bytes, bytes, ("revid",))
        chk_inv2 = CHKInventory.from_inventory(chk_bytes, inv2)
        bytes = ''.join(chk_inv2.to_lines())
        inv_2 = CHKInventory.deserialise(chk_bytes, bytes, ("revid2",))
        self.assertEqual([('fileid', (u'file', u'file'), True, (True, True),
            ('TREE_ROOT', 'TREE_ROOT'), (u'file', u'file'), ('file', 'file'),
            (False, True))],
            list(inv_1.iter_changes(inv_2)))

    def test_parent_id_basename_to_file_id_index_enabled(self):
        inv = Inventory()
        inv.revision_id = "revid"
        inv.root.revision = "rootrev"
        inv.add(InventoryFile("fileid", "file", inv.root.file_id))
        inv["fileid"].revision = "filerev"
        inv["fileid"].executable = True
        inv["fileid"].text_sha1 = "ffff"
        inv["fileid"].text_size = 1
        # get fresh objects.
        chk_bytes = self.get_chk_bytes()
        tmp_inv = CHKInventory.from_inventory(chk_bytes, inv)
        bytes = ''.join(tmp_inv.to_lines())
        chk_inv = CHKInventory.deserialise(chk_bytes, bytes, ("revid",))
        self.assertIsInstance(chk_inv.parent_id_basename_to_file_id, chk_map.CHKMap)
        self.assertEqual(
            {('', ''): 'TREE_ROOT', ('TREE_ROOT', 'file'): 'fileid'},
            dict(chk_inv.parent_id_basename_to_file_id.iteritems()))

    def test_file_entry_to_bytes(self):
        inv = CHKInventory(None)
        ie = inventory.InventoryFile('file-id', 'filename', 'parent-id')
        ie.executable = True
        ie.revision = 'file-rev-id'
        ie.text_sha1 = 'abcdefgh'
        ie.text_size = 100
        bytes = inv._entry_to_bytes(ie)
        self.assertEqual('file: file-id\nparent-id\nfilename\n'
                         'file-rev-id\nabcdefgh\n100\nY', bytes)
        ie2 = inv._bytes_to_entry(bytes)
        self.assertEqual(ie, ie2)
        self.assertIsInstance(ie2.name, unicode)
        self.assertEqual(('filename', 'file-id', 'file-rev-id'),
                         inv._bytes_to_utf8name_key(bytes))

    def test_file2_entry_to_bytes(self):
        inv = CHKInventory(None)
        # \u30a9 == 'omega'
        ie = inventory.InventoryFile('file-id', u'\u03a9name', 'parent-id')
        ie.executable = False
        ie.revision = 'file-rev-id'
        ie.text_sha1 = '123456'
        ie.text_size = 25
        bytes = inv._entry_to_bytes(ie)
        self.assertEqual('file: file-id\nparent-id\n\xce\xa9name\n'
                         'file-rev-id\n123456\n25\nN', bytes)
        ie2 = inv._bytes_to_entry(bytes)
        self.assertEqual(ie, ie2)
        self.assertIsInstance(ie2.name, unicode)
        self.assertEqual(('\xce\xa9name', 'file-id', 'file-rev-id'),
                         inv._bytes_to_utf8name_key(bytes))

    def test_dir_entry_to_bytes(self):
        inv = CHKInventory(None)
        ie = inventory.InventoryDirectory('dir-id', 'dirname', 'parent-id')
        ie.revision = 'dir-rev-id'
        bytes = inv._entry_to_bytes(ie)
        self.assertEqual('dir: dir-id\nparent-id\ndirname\ndir-rev-id', bytes)
        ie2 = inv._bytes_to_entry(bytes)
        self.assertEqual(ie, ie2)
        self.assertIsInstance(ie2.name, unicode)
        self.assertEqual(('dirname', 'dir-id', 'dir-rev-id'),
                         inv._bytes_to_utf8name_key(bytes))

    def test_dir2_entry_to_bytes(self):
        inv = CHKInventory(None)
        ie = inventory.InventoryDirectory('dir-id', u'dir\u03a9name',
                                          None)
        ie.revision = 'dir-rev-id'
        bytes = inv._entry_to_bytes(ie)
        self.assertEqual('dir: dir-id\n\ndir\xce\xa9name\n'
                         'dir-rev-id', bytes)
        ie2 = inv._bytes_to_entry(bytes)
        self.assertEqual(ie, ie2)
        self.assertIsInstance(ie2.name, unicode)
        self.assertIs(ie2.parent_id, None)
        self.assertEqual(('dir\xce\xa9name', 'dir-id', 'dir-rev-id'),
                         inv._bytes_to_utf8name_key(bytes))

    def test_symlink_entry_to_bytes(self):
        inv = CHKInventory(None)
        ie = inventory.InventoryLink('link-id', 'linkname', 'parent-id')
        ie.revision = 'link-rev-id'
        ie.symlink_target = u'target/path'
        bytes = inv._entry_to_bytes(ie)
        self.assertEqual('symlink: link-id\nparent-id\nlinkname\n'
                         'link-rev-id\ntarget/path', bytes)
        ie2 = inv._bytes_to_entry(bytes)
        self.assertEqual(ie, ie2)
        self.assertIsInstance(ie2.name, unicode)
        self.assertIsInstance(ie2.symlink_target, unicode)
        self.assertEqual(('linkname', 'link-id', 'link-rev-id'),
                         inv._bytes_to_utf8name_key(bytes))

    def test_symlink2_entry_to_bytes(self):
        inv = CHKInventory(None)
        ie = inventory.InventoryLink('link-id', u'link\u03a9name', 'parent-id')
        ie.revision = 'link-rev-id'
        ie.symlink_target = u'target/\u03a9path'
        bytes = inv._entry_to_bytes(ie)
        self.assertEqual('symlink: link-id\nparent-id\nlink\xce\xa9name\n'
                         'link-rev-id\ntarget/\xce\xa9path', bytes)
        ie2 = inv._bytes_to_entry(bytes)
        self.assertEqual(ie, ie2)
        self.assertIsInstance(ie2.name, unicode)
        self.assertIsInstance(ie2.symlink_target, unicode)
        self.assertEqual(('link\xce\xa9name', 'link-id', 'link-rev-id'),
                         inv._bytes_to_utf8name_key(bytes))

    def test_tree_reference_entry_to_bytes(self):
        inv = CHKInventory(None)
        ie = inventory.TreeReference('tree-root-id', u'tree\u03a9name',
                                     'parent-id')
        ie.revision = 'tree-rev-id'
        ie.reference_revision = 'ref-rev-id'
        bytes = inv._entry_to_bytes(ie)
        self.assertEqual('tree: tree-root-id\nparent-id\ntree\xce\xa9name\n'
                         'tree-rev-id\nref-rev-id', bytes)
        ie2 = inv._bytes_to_entry(bytes)
        self.assertEqual(ie, ie2)
        self.assertIsInstance(ie2.name, unicode)
        self.assertEqual(('tree\xce\xa9name', 'tree-root-id', 'tree-rev-id'),
                         inv._bytes_to_utf8name_key(bytes))