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test_takeSnapshot.py
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test_takeSnapshot.py
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# Back In Time
# Copyright (C) 2008-2022 Oprea Dan, Bart de Koning, Richard Bailey, Germar Reitze
#
# 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.
import os
import sys
import stat
import unittest
from unittest.mock import patch
from datetime import date, datetime, timedelta
from tempfile import TemporaryDirectory
from test import generic
sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
import snapshots
import mount
class TestTakeSnapshot(generic.SnapshotsTestCase):
def setUp(self):
super(TestTakeSnapshot, self).setUp()
self.include = TemporaryDirectory()
generic.create_test_files(self.include.name)
def tearDown(self):
super(TestTakeSnapshot, self).tearDown()
self.include.cleanup()
def remount(self):
#dummy method only used in TestTakeSnapshotSSH
pass
def getInode(self, sid):
return os.stat(sid.pathBackup(os.path.join(self.include.name, 'test'))).st_ino
@patch('time.sleep') # speed up unittest
def test_takeSnapshot(self, sleep):
now = datetime.today() - timedelta(minutes = 6)
sid1 = snapshots.SID(now, self.cfg)
self.assertListEqual([True, False], self.sn.takeSnapshot(sid1, now, [(self.include.name, 0),]))
self.assertTrue(sid1.exists())
self.assertTrue(sid1.canOpenPath(os.path.join(self.include.name, 'foo', 'bar', 'baz')))
self.assertTrue(sid1.canOpenPath(os.path.join(self.include.name, 'test')))
self.assertTrue(sid1.canOpenPath(os.path.join(self.include.name, 'file with spaces')))
self.assertExists(self.cfg.anacronSpoolFile())
for f in ('config',
'fileinfo.bz2',
'info',
'takesnapshot.log.bz2'):
self.assertExists(sid1.path(f))
for f in ('failed',
'save_to_continue'):
self.assertNotExists(sid1.path(f))
# second takeSnapshot which should not create a new snapshot as nothing
# has changed
os.remove(self.cfg.anacronSpoolFile())
now = datetime.today() - timedelta(minutes = 4)
sid2 = snapshots.SID(now, self.cfg)
self.assertListEqual([False, False], self.sn.takeSnapshot(sid2, now, [(self.include.name, 0),]))
self.assertFalse(sid2.exists())
self.assertExists(self.cfg.anacronSpoolFile())
# third takeSnapshot
self.remount()
with open(os.path.join(self.include.name, 'lalala'), 'wt') as f:
f.write('asdf')
now = datetime.today() - timedelta(minutes = 2)
sid3 = snapshots.SID(now, self.cfg)
self.assertListEqual([True, False], self.sn.takeSnapshot(sid3, now, [(self.include.name, 0),]))
self.assertTrue(sid3.exists())
self.assertTrue(sid3.canOpenPath(os.path.join(self.include.name, 'lalala')))
inode1 = self.getInode(sid1)
inode3 = self.getInode(sid3)
self.assertEqual(inode1, inode3)
# fourth takeSnapshot with force create new snapshot even if nothing
# has changed
self.cfg.setTakeSnapshotRegardlessOfChanges(True)
now = datetime.today()
sid4 = snapshots.SID(now, self.cfg)
self.assertListEqual([True, False], self.sn.takeSnapshot(sid4, now, [(self.include.name, 0),]))
self.assertTrue(sid4.exists())
self.assertTrue(sid4.canOpenPath(os.path.join(self.include.name, 'foo', 'bar', 'baz')))
self.assertTrue(sid4.canOpenPath(os.path.join(self.include.name, 'test')))
@patch('time.sleep') # speed up unittest
def test_takeSnapshot_with_spaces_in_include(self, sleep):
now = datetime.today()
sid1 = snapshots.SID(now, self.cfg)
include = os.path.join(self.include.name, 'test path with spaces')
generic.create_test_files(include)
self.assertListEqual([True, False], self.sn.takeSnapshot(sid1, now, [(include, 0),]))
self.assertTrue(sid1.exists())
self.assertTrue(sid1.canOpenPath(os.path.join(include, 'foo', 'bar', 'baz')))
self.assertTrue(sid1.canOpenPath(os.path.join(include, 'test')))
for f in ('config',
'fileinfo.bz2',
'info',
'takesnapshot.log.bz2'):
self.assertExists(sid1.path(f))
for f in ('failed',
'save_to_continue'):
self.assertNotExists(sid1.path(f))
@patch('time.sleep') # speed up unittest
def test_takeSnapshot_exclude(self, sleep):
now = datetime.today()
sid1 = snapshots.SID(now, self.cfg)
self.cfg.setExclude(['bar/baz'])
self.assertListEqual([True, False], self.sn.takeSnapshot(sid1, now, [(self.include.name, 0),]))
self.assertTrue(sid1.exists())
self.assertTrue(sid1.canOpenPath(os.path.join(self.include.name, 'foo', 'bar')))
self.assertFalse(sid1.canOpenPath(os.path.join(self.include.name, 'foo', 'bar', 'baz')))
self.assertTrue(sid1.canOpenPath(os.path.join(self.include.name, 'test')))
for f in ('config',
'fileinfo.bz2',
'info',
'takesnapshot.log.bz2'):
self.assertExists(sid1.path(f))
for f in ('failed',
'save_to_continue'):
self.assertNotExists(sid1.path(f))
@patch('time.sleep') # speed up unittest
def test_takeSnapshot_with_spaces_in_exclude(self, sleep):
now = datetime.today()
sid1 = snapshots.SID(now, self.cfg)
exclude = os.path.join(self.include.name, 'test path with spaces')
generic.create_test_files(exclude)
self.cfg.setExclude([exclude])
self.assertListEqual([True, False], self.sn.takeSnapshot(sid1, now, [(self.include.name, 0),]))
self.assertTrue(sid1.exists())
self.assertTrue(sid1.canOpenPath(os.path.join(self.include.name, 'foo', 'bar', 'baz')))
self.assertTrue(sid1.canOpenPath(os.path.join(self.include.name, 'test')))
self.assertFalse(sid1.canOpenPath(exclude))
for f in ('config',
'fileinfo.bz2',
'info',
'takesnapshot.log.bz2'):
self.assertExists(sid1.path(f))
for f in ('failed',
'save_to_continue'):
self.assertNotExists(sid1.path(f))
@patch('time.sleep') # speed up unittest
def test_takeSnapshot_error(self, sleep):
with generic.mockPermissions(os.path.join(self.include.name, 'test')):
now = datetime.today()
sid1 = snapshots.SID(now, self.cfg)
self.assertListEqual([True, True], self.sn.takeSnapshot(sid1, now, [(self.include.name, 0),]))
self.assertTrue(sid1.exists())
self.assertTrue(sid1.canOpenPath(os.path.join(self.include.name, 'foo', 'bar', 'baz')))
self.assertFalse(sid1.canOpenPath(os.path.join(self.include.name, 'test')))
for f in ('config',
'fileinfo.bz2',
'info',
'takesnapshot.log.bz2',
'failed'):
self.assertExists(sid1.path(f))
self.assertNotExists(self.cfg.anacronSpoolFile())
@patch('time.sleep') # speed up unittest
def test_takeSnapshot_error_without_continue(self, sleep):
with generic.mockPermissions(os.path.join(self.include.name, 'test')):
self.cfg.setContinueOnErrors(False)
now = datetime.today()
sid1 = snapshots.SID(now, self.cfg)
self.assertListEqual([False, True], self.sn.takeSnapshot(sid1, now, [(self.include.name, 0),]))
self.assertFalse(sid1.exists())
@patch('time.sleep') # speed up unittest
def test_takeSnapshot_new_exists(self, sleep):
new_snapshot = snapshots.NewSnapshot(self.cfg)
new_snapshot.makeDirs()
with open(new_snapshot.path('leftover'), 'wt') as f:
f.write('foo')
now = datetime.today() - timedelta(minutes = 6)
sid1 = snapshots.SID(now, self.cfg)
self.assertListEqual([True, False], self.sn.takeSnapshot(sid1, now, [(self.include.name, 0),]))
self.assertTrue(sid1.exists())
self.assertNotExists(sid1.path('leftover'))
@patch('time.sleep') # speed up unittest
def test_takeSnapshot_new_exists_continue(self, sleep):
new_snapshot = snapshots.NewSnapshot(self.cfg)
new_snapshot.makeDirs()
with open(new_snapshot.path('leftover'), 'wt') as f:
f.write('foo')
new_snapshot.saveToContinue = True
now = datetime.today() - timedelta(minutes = 6)
sid1 = snapshots.SID(now, self.cfg)
self.assertListEqual([True, False], self.sn.takeSnapshot(sid1, now, [(self.include.name, 0),]))
self.assertTrue(sid1.exists())
self.assertExists(sid1.path('leftover'))
@patch('time.sleep') # speed up unittest
def test_takeSnapshot_fail_create_new_snapshot(self, sleep):
with generic.mockPermissions(self.snapshotPath, 0o500):
now = datetime.today()
sid1 = snapshots.SID(now, self.cfg)
self.assertListEqual([False, True], self.sn.takeSnapshot(sid1, now, [(self.include.name, 0),]))
@unittest.skipIf(not generic.LOCAL_SSH, 'Skip as this test requires a local ssh server, public and private keys installed')
class TestTakeSnapshotSSH(generic.SSHSnapshotTestCase, TestTakeSnapshot):
def setUp(self):
super(TestTakeSnapshotSSH, self).setUp()
self.include = TemporaryDirectory()
generic.create_test_files(self.include.name)
#mount
self.cfg.setCurrentHashId(mount.Mount(cfg = self.cfg).mount())
def tearDown(self):
#unmount
mount.Mount(cfg = self.cfg).umount(self.cfg.current_hash_id)
super(TestTakeSnapshotSSH, self).tearDown()
self.include.cleanup()
def remount(self):
mount.Mount(cfg = self.cfg).umount(self.cfg.current_hash_id)
hash_id = mount.Mount(cfg = self.cfg).mount()
def getInode(self, sid):
return os.stat(os.path.join(self.snapshotPath, sid.sid, 'backup', self.include.name[1:], 'test')).st_ino