def test_backup_restore(self):
""" Test if backup and restore works correctly """
backup_id = common.backup(self.backend, self.backup_dir)
old_file = os.path.join(self.storage_dir, backup_id)
# Create new backup, this should reuse the last metadata set and the
# checksum should be reused. Metadata set should be identical
with mock.patch('logging.info') as mock_log:
backup_id = common.backup(self.backend, self.backup_dir)
mock_log.assert_any_call('Skipped unchanged sub/o\xcc\x88')
new_file = os.path.join(self.storage_dir, backup_id)
self.assertEqual(utils.sha256_file(old_file), utils.sha256_file(new_file))
# Check if data deduplication works
chunks = utils.find_modified_files(self.storage_dir)
storage_size = 0
for filename, stat in chunks.items():
if filename.startswith('c-'):
storage_size += stat['s']
self.assertTrue(storage_size < self.original_size)
common.restore(self.backend, self.restore_dir, backup_id)
# Compare original file content to restored file content
for fn in ['x', 'sub/y']:
old_filename = os.path.join(self.backup_dir, fn)
old_hash = utils.sha256_file(old_filename)
new_filename = os.path.join(self.restore_dir, fn)
new_hash = utils.sha256_file(new_filename)
self.assertEqual(old_hash, new_hash)
def test_hmac_file(self):
""" Test if file SHA256 is computed correctly """
checksum = utils.sha256_file(self.tempfile)
self.assertEqual(self.reference, checksum)
checksum = utils.sha256_file(self.tempfile + ' ')
self.assertEqual(None, checksum)
