~bzr-pqm/bzr/bzr.dev

# Copyright (C) 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

"""Tests for interface conformance of inventories of working trees."""

import os

import time

from bzrlib import (

    errors,

    inventory,

    )

from bzrlib.tests.workingtree_implementations import TestCaseWithWorkingTree

class TestRevert(TestCaseWithWorkingTree):

    def test_dangling_id(self):

        wt = self.make_branch_and_tree('b1')

        wt.lock_tree_write()

        self.addCleanup(wt.unlock)

        self.assertEqual(len(wt.inventory), 1)

        open('b1/a', 'wb').write('a test\n')

        wt.add('a')

        self.assertEqual(len(wt.inventory), 2)

        wt.flush() # workaround revert doing wt._write_inventory for now.

        os.unlink('b1/a')

        wt.revert([])

        self.assertEqual(len(wt.inventory), 1)

class TestSnapshot(TestCaseWithWorkingTree):

    def setUp(self):

        # for full testing we'll need a branch

        # with a subdir to test parent changes.

        # and a file, link and dir under that.

        # but right now I only need one attribute

        # to change, and then test merge patterns

        # with fake parent entries.

        super(TestSnapshot, self).setUp()

        self.wt = self.make_branch_and_tree('.')

        self.branch = self.wt.branch

        self.build_tree(['subdir/', 'subdir/file'], line_endings='binary')

        self.wt.add(['subdir', 'subdir/file'],

                                       ['dirid', 'fileid'])

        self.wt.commit('message_1', rev_id = '1')

        self.tree_1 = self.branch.repository.revision_tree('1')

        self.inv_1 = self.branch.repository.get_inventory('1')

        self.file_1 = self.inv_1['fileid']

        self.wt.lock_write()

        self.addCleanup(self.wt.unlock)

        self.file_active = self.wt.inventory['fileid']

        self.builder = self.branch.get_commit_builder([], timestamp=time.time(), revision_id='2')

    def test_snapshot_new_revision(self):

        # This tests that a simple commit with no parents makes a new

        # revision value in the inventory entry

        self.file_active.snapshot('2', 'subdir/file', {}, self.wt, self.builder)

        # expected outcome - file_1 has a revision id of '2', and we can get

        # its text of 'file contents' out of the weave.

        self.assertEqual(self.file_1.revision, '1')

        self.assertEqual(self.file_active.revision, '2')

        # this should be a separate test probably, but lets check it once..

        lines = self.branch.repository.weave_store.get_weave(

            'fileid', 

            self.branch.repository.get_transaction()).get_lines('2')

        self.assertEqual(lines, ['contents of subdir/file\n'])

    def test_snapshot_unchanged(self):

        #This tests that a simple commit does not make a new entry for

        # an unchanged inventory entry

        self.file_active.snapshot('2', 'subdir/file', {'1':self.file_1},

                                  self.wt, self.builder)

        self.assertEqual(self.file_1.revision, '1')

        self.assertEqual(self.file_active.revision, '1')

        vf = self.branch.repository.weave_store.get_weave(

            'fileid', 

            self.branch.repository.get_transaction())

        self.assertRaises(errors.RevisionNotPresent,

                          vf.get_lines,

                          '2')

    def test_snapshot_merge_identical_different_revid(self):

        # This tests that a commit with two identical parents, one of which has

        # a different revision id, results in a new revision id in the entry.

        # 1->other, commit a merge of other against 1, results in 2.

        other_ie = inventory.InventoryFile('fileid', 'newname', self.file_1.parent_id)

        other_ie = inventory.InventoryFile('fileid', 'file', self.file_1.parent_id)

        other_ie.revision = '1'

        other_ie.text_sha1 = self.file_1.text_sha1

        other_ie.text_size = self.file_1.text_size

        self.assertEqual(self.file_1, other_ie)

        other_ie.revision = 'other'

        self.assertNotEqual(self.file_1, other_ie)

        versionfile = self.branch.repository.weave_store.get_weave(

            'fileid', self.branch.repository.get_transaction())

        versionfile.clone_text('other', '1', ['1'])

        self.file_active.snapshot('2', 'subdir/file', 

                                  {'1':self.file_1, 'other':other_ie},

                                  self.wt, self.builder)

        self.assertEqual(self.file_active.revision, '2')

    def test_snapshot_changed(self):

        # This tests that a commit with one different parent results in a new

        # revision id in the entry.

        self.wt.rename_one('subdir/file', 'subdir/newname')

        self.file_active = self.wt.inventory['fileid']

        self.file_active.snapshot('2', 'subdir/newname', {'1':self.file_1}, 

                                  self.wt, self.builder)

        # expected outcome - file_1 has a revision id of '2'

        self.assertEqual(self.file_active.revision, '2')