mirror of
https://github.com/borgbackup/borg.git
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326 lines
13 KiB
Python
326 lines
13 KiB
Python
import os
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import shutil
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import tempfile
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from attic.testsuite.mock import patch
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from attic.hashindex import NSIndex
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from attic.helpers import Location, IntegrityError, UpgradableLock
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from attic.remote import RemoteRepository
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from attic.repository import Repository
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from attic.testsuite import AtticTestCase
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class RepositoryTestCaseBase(AtticTestCase):
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def open(self, create=False):
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return Repository(os.path.join(self.tmppath, 'repository'), create=create)
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def setUp(self):
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self.tmppath = tempfile.mkdtemp()
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self.repository = self.open(create=True)
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def tearDown(self):
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self.repository.close()
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shutil.rmtree(self.tmppath)
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def reopen(self):
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if self.repository:
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self.repository.close()
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self.repository = self.open()
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class RepositoryTestCase(RepositoryTestCaseBase):
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def test1(self):
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for x in range(100):
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self.repository.put(('%-32d' % x).encode('ascii'), b'SOMEDATA')
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key50 = ('%-32d' % 50).encode('ascii')
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self.assert_equal(self.repository.get(key50), b'SOMEDATA')
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self.repository.delete(key50)
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self.assert_raises(Repository.DoesNotExist, lambda: self.repository.get(key50))
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self.repository.commit()
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self.repository.close()
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repository2 = self.open()
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self.assert_raises(Repository.DoesNotExist, lambda: repository2.get(key50))
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for x in range(100):
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if x == 50:
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continue
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self.assert_equal(repository2.get(('%-32d' % x).encode('ascii')), b'SOMEDATA')
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repository2.close()
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def test2(self):
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"""Test multiple sequential transactions
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"""
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self.repository.put(b'00000000000000000000000000000000', b'foo')
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self.repository.put(b'00000000000000000000000000000001', b'foo')
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self.repository.commit()
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self.repository.delete(b'00000000000000000000000000000000')
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self.repository.put(b'00000000000000000000000000000001', b'bar')
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self.repository.commit()
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self.assert_equal(self.repository.get(b'00000000000000000000000000000001'), b'bar')
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def test_consistency(self):
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"""Test cache consistency
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"""
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self.repository.put(b'00000000000000000000000000000000', b'foo')
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self.assert_equal(self.repository.get(b'00000000000000000000000000000000'), b'foo')
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self.repository.put(b'00000000000000000000000000000000', b'foo2')
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self.assert_equal(self.repository.get(b'00000000000000000000000000000000'), b'foo2')
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self.repository.put(b'00000000000000000000000000000000', b'bar')
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self.assert_equal(self.repository.get(b'00000000000000000000000000000000'), b'bar')
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self.repository.delete(b'00000000000000000000000000000000')
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self.assert_raises(Repository.DoesNotExist, lambda: self.repository.get(b'00000000000000000000000000000000'))
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def test_consistency2(self):
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"""Test cache consistency2
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"""
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self.repository.put(b'00000000000000000000000000000000', b'foo')
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self.assert_equal(self.repository.get(b'00000000000000000000000000000000'), b'foo')
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self.repository.commit()
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self.repository.put(b'00000000000000000000000000000000', b'foo2')
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self.assert_equal(self.repository.get(b'00000000000000000000000000000000'), b'foo2')
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self.repository.rollback()
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self.assert_equal(self.repository.get(b'00000000000000000000000000000000'), b'foo')
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def test_overwrite_in_same_transaction(self):
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"""Test cache consistency2
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"""
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self.repository.put(b'00000000000000000000000000000000', b'foo')
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self.repository.put(b'00000000000000000000000000000000', b'foo2')
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self.repository.commit()
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self.assert_equal(self.repository.get(b'00000000000000000000000000000000'), b'foo2')
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def test_single_kind_transactions(self):
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# put
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self.repository.put(b'00000000000000000000000000000000', b'foo')
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self.repository.commit()
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self.repository.close()
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# replace
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self.repository = self.open()
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self.repository.put(b'00000000000000000000000000000000', b'bar')
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self.repository.commit()
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self.repository.close()
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# delete
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self.repository = self.open()
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self.repository.delete(b'00000000000000000000000000000000')
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self.repository.commit()
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def test_list(self):
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for x in range(100):
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self.repository.put(('%-32d' % x).encode('ascii'), b'SOMEDATA')
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all = self.repository.list()
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self.assert_equal(len(all), 100)
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first_half = self.repository.list(limit=50)
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self.assert_equal(len(first_half), 50)
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self.assert_equal(first_half, all[:50])
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second_half = self.repository.list(marker=first_half[-1])
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self.assert_equal(len(second_half), 50)
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self.assert_equal(second_half, all[50:])
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self.assert_equal(len(self.repository.list(limit=50)), 50)
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class RepositoryCommitTestCase(RepositoryTestCaseBase):
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def add_keys(self):
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self.repository.put(b'00000000000000000000000000000000', b'foo')
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self.repository.put(b'00000000000000000000000000000001', b'bar')
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self.repository.put(b'00000000000000000000000000000003', b'bar')
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self.repository.commit()
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self.repository.put(b'00000000000000000000000000000001', b'bar2')
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self.repository.put(b'00000000000000000000000000000002', b'boo')
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self.repository.delete(b'00000000000000000000000000000003')
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def test_replay_of_missing_index(self):
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self.add_keys()
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for name in os.listdir(self.repository.path):
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if name.startswith('index.'):
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os.unlink(os.path.join(self.repository.path, name))
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self.reopen()
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self.assert_equal(len(self.repository), 3)
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self.assert_equal(self.repository.check(), True)
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def test_crash_before_compact_segments(self):
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self.add_keys()
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self.repository.compact_segments = None
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try:
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self.repository.commit()
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except TypeError:
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pass
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self.reopen()
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self.assert_equal(len(self.repository), 3)
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self.assert_equal(self.repository.check(), True)
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def test_replay_of_readonly_repository(self):
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self.add_keys()
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for name in os.listdir(self.repository.path):
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if name.startswith('index.'):
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os.unlink(os.path.join(self.repository.path, name))
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with patch.object(UpgradableLock, 'upgrade', side_effect=UpgradableLock.LockUpgradeFailed) as upgrade:
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self.reopen()
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self.assert_raises(UpgradableLock.LockUpgradeFailed, lambda: len(self.repository))
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upgrade.assert_called_once()
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def test_crash_before_write_index(self):
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self.add_keys()
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self.repository.write_index = None
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try:
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self.repository.commit()
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except TypeError:
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pass
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self.reopen()
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self.assert_equal(len(self.repository), 3)
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self.assert_equal(self.repository.check(), True)
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def test_crash_before_deleting_compacted_segments(self):
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self.add_keys()
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self.repository.io.delete_segment = None
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try:
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self.repository.commit()
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except TypeError:
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pass
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self.reopen()
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self.assert_equal(len(self.repository), 3)
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self.assert_equal(self.repository.check(), True)
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self.assert_equal(len(self.repository), 3)
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class RepositoryCheckTestCase(RepositoryTestCaseBase):
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def list_indices(self):
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return [name for name in os.listdir(os.path.join(self.tmppath, 'repository')) if name.startswith('index.')]
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def check(self, repair=False, status=True):
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self.assert_equal(self.repository.check(repair=repair), status)
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# Make sure no tmp files are left behind
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self.assert_equal([name for name in os.listdir(os.path.join(self.tmppath, 'repository')) if 'tmp' in name], [], 'Found tmp files')
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def get_objects(self, *ids):
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for id_ in ids:
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self.repository.get(('%032d' % id_).encode('ascii'))
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def add_objects(self, segments):
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for ids in segments:
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for id_ in ids:
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self.repository.put(('%032d' % id_).encode('ascii'), b'data')
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self.repository.commit()
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def get_head(self):
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return sorted(int(n) for n in os.listdir(os.path.join(self.tmppath, 'repository', 'data', '0')) if n.isdigit())[-1]
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def open_index(self):
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return NSIndex(os.path.join(self.tmppath, 'repository', 'index.{}'.format(self.get_head())))
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def corrupt_object(self, id_):
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idx = self.open_index()
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segment, offset = idx[('%032d' % id_).encode('ascii')]
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with open(os.path.join(self.tmppath, 'repository', 'data', '0', str(segment)), 'r+b') as fd:
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fd.seek(offset)
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fd.write(b'BOOM')
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def delete_segment(self, segment):
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os.unlink(os.path.join(self.tmppath, 'repository', 'data', '0', str(segment)))
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def delete_index(self):
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os.unlink(os.path.join(self.tmppath, 'repository', 'index.{}'.format(self.get_head())))
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def rename_index(self, new_name):
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os.rename(os.path.join(self.tmppath, 'repository', 'index.{}'.format(self.get_head())),
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os.path.join(self.tmppath, 'repository', new_name))
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def list_objects(self):
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return set(int(key) for key in self.repository.list())
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def test_repair_corrupted_segment(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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self.check(status=True)
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self.corrupt_object(5)
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self.assert_raises(IntegrityError, lambda: self.get_objects(5))
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self.repository.rollback()
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# Make sure a regular check does not repair anything
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self.check(status=False)
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self.check(status=False)
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# Make sure a repair actually repairs the repo
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self.check(repair=True, status=True)
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self.get_objects(4)
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self.check(status=True)
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self.assert_equal(set([1, 2, 3, 4, 6]), self.list_objects())
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def test_repair_missing_segment(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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self.check(status=True)
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self.delete_segment(1)
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self.repository.rollback()
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self.check(repair=True, status=True)
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self.assert_equal(set([1, 2, 3]), self.list_objects())
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def test_repair_missing_commit_segment(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.delete_segment(1)
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self.assert_raises(Repository.DoesNotExist, lambda: self.get_objects(4))
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self.assert_equal(set([1, 2, 3]), self.list_objects())
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def test_repair_corrupted_commit_segment(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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with open(os.path.join(self.tmppath, 'repository', 'data', '0', '1'), 'r+b') as fd:
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fd.seek(-1, os.SEEK_END)
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fd.write(b'X')
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self.assert_raises(Repository.DoesNotExist, lambda: self.get_objects(4))
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self.check(status=True)
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self.get_objects(3)
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self.assert_equal(set([1, 2, 3]), self.list_objects())
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def test_repair_no_commits(self):
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self.add_objects([[1, 2, 3]])
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with open(os.path.join(self.tmppath, 'repository', 'data', '0', '0'), 'r+b') as fd:
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fd.seek(-1, os.SEEK_END)
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fd.write(b'X')
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self.assert_raises(Repository.CheckNeeded, lambda: self.get_objects(4))
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self.check(status=False)
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self.check(status=False)
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self.assert_equal(self.list_indices(), ['index.0'])
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self.check(repair=True, status=True)
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self.assert_equal(self.list_indices(), ['index.1'])
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self.check(status=True)
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self.get_objects(3)
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self.assert_equal(set([1, 2, 3]), self.list_objects())
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def test_repair_missing_index(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.delete_index()
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self.check(status=True)
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self.get_objects(4)
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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def test_repair_index_too_new(self):
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self.add_objects([[1, 2, 3], [4, 5, 6]])
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self.assert_equal(self.list_indices(), ['index.1'])
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self.rename_index('index.100')
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self.check(status=True)
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self.assert_equal(self.list_indices(), ['index.1'])
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self.get_objects(4)
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self.assert_equal(set([1, 2, 3, 4, 5, 6]), self.list_objects())
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def test_crash_before_compact(self):
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self.repository.put(bytes(32), b'data')
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self.repository.put(bytes(32), b'data2')
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# Simulate a crash before compact
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with patch.object(Repository, 'compact_segments') as compact:
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self.repository.commit()
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compact.assert_called_once()
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self.reopen()
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self.check(repair=True)
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self.assert_equal(self.repository.get(bytes(32)), b'data2')
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class RemoteRepositoryTestCase(RepositoryTestCase):
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def open(self, create=False):
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return RemoteRepository(Location('__testsuite__:' + os.path.join(self.tmppath, 'repository')), create=create)
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class RemoteRepositoryCheckTestCase(RepositoryCheckTestCase):
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def open(self, create=False):
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return RemoteRepository(Location('__testsuite__:' + os.path.join(self.tmppath, 'repository')), create=create)
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