def test_snapshot_mount_error_raises_Exception(self,
mock_create_dir,
mock_get_lvm_info,
mock_get_vol_fs_type,
mock_popen,
mock_lvm_snap_remove):
mock_get_vol_fs_type.return_value = 'xfs'
mock_get_lvm_info.return_value = {
'volgroup': 'lvm_volgroup',
'srcvol': 'lvm_device',
'snap_path': 'snap_path'}
mock_lvcreate_process, mock_mount_process = Mock(), Mock()
mock_lvcreate_process.communicate.return_value = '', ''
mock_lvcreate_process.returncode = 0
mock_mount_process.communicate.return_value = '', 'mount error'
mock_mount_process.returncode = 1
mock_popen.side_effect = [mock_lvcreate_process, mock_mount_process]
backup_opt = Mock()
backup_opt.snapshot = True
backup_opt.lvm_auto_snap = ''
backup_opt.path_to_backup = '/just/a/path'
backup_opt.lvm_dirmount = '/var/mountpoint'
backup_opt.lvm_snapperm = 'ro'
with self.assertRaises(Exception) as cm:
lvm.lvm_snap(backup_opt)
the_exception = cm.exception
self.assertIn('lvm snapshot mounting error', the_exception.message)
mock_lvm_snap_remove.assert_called_once_with(backup_opt)
def test_mysql_mode_locks_unlocks_tables(self, mock_create_dir, mock_get_lvm_info, mock_get_vol_fs_type, mock_popen):
mock_get_vol_fs_type.return_value = 'xfs'
mock_get_lvm_info.return_value = {
'volgroup': 'lvm_volgroup',
'srcvol': 'lvm_device',
'snap_path': 'snap_path'}
mock_process = Mock()
mock_process.communicate.return_value = '', ''
mock_process.returncode = 0
mock_popen.return_value = mock_process
backup_opt = Mock()
backup_opt.snapshot = True
backup_opt.lvm_auto_snap = ''
backup_opt.path_to_backup = '/just/a/path'
backup_opt.lvm_dirmount = '/var/mountpoint'
backup_opt.lvm_snapperm = 'ro'
backup_opt.mode = 'mysql'
backup_opt.mysql_db_inst = Mock()
mock_cursor = Mock()
backup_opt.mysql_db_inst.cursor.return_value = mock_cursor
self.assertTrue(lvm.lvm_snap(backup_opt))
first_call = call('FLUSH TABLES WITH READ LOCK')
second_call = call('UNLOCK TABLES')
self.assertEquals(first_call, mock_cursor.execute.call_args_list[0])
self.assertEquals(second_call, mock_cursor.execute.call_args_list[1])
def test_with_auto_snap_param_path_mismatch_raises(self, mock_create_dir, mock_get_lvm_info, mock_validate_lvm_params):
mock_get_lvm_info.return_value = {
'volgroup': 'lvm_volgroup',
'srcvol': 'lvm_device',
'snap_path': 'snap_path'}
backup_opt = Mock()
backup_opt.snapshot = False
backup_opt.lvm_auto_snap = '/just/a/path'
backup_opt.path_to_backup = '/different'
backup_opt.lvm_dirmount = '/var/mountpoint'
self.assertRaises(Exception, lvm.lvm_snap, backup_opt)
def test_with_snapshot_opt_simple_sets_correct_path_and_raises_on_perm(self, mock_create_dir, mock_get_lvm_info):
mock_get_lvm_info.return_value = {
'volgroup': 'lvm_volgroup',
'srcvol': 'lvm_device',
'snap_path': 'snap_path'}
backup_opt = Mock()
backup_opt.snapshot = True
backup_opt.lvm_auto_snap = ''
backup_opt.path_to_backup = '/just/a/path'
backup_opt.lvm_dirmount = '/var/mountpoint'
backup_opt.lvm_snapperm = 'invalid_value'
with self.assertRaises(Exception) as cm:
lvm.lvm_snap(backup_opt)
the_exception = cm.exception
self.assertIn('Invalid value for option lvm-snap-perm', the_exception.message)
def test_ok(self, mock_create_dir, mock_get_lvm_info, mock_get_vol_fs_type, mock_popen, mock_validate_lvm_params):
mock_get_lvm_info.return_value = {
'volgroup': 'lvm_volgroup',
'srcvol': 'lvm_device',
'snap_path': 'snap_path'}
mock_process = Mock()
mock_process.communicate.return_value = '', ''
mock_process.returncode = 0
mock_popen.return_value = mock_process
backup_opt = Mock()
backup_opt.snapshot = True
backup_opt.lvm_auto_snap = ''
backup_opt.path_to_backup = '/just/a/path'
backup_opt.lvm_dirmount = '/var/mountpoint'
backup_opt.lvm_snapperm = 'ro'
backup_opt.lvm_volgroup = ''
backup_opt.lvm_srcvol = ''
self.assertTrue(lvm.lvm_snap(backup_opt))
def test_snapshot_fails(self, mock_create_dir, mock_get_lvm_info, mock_get_vol_fs_type, mock_popen, mock_validate_lvm_params):
mock_get_lvm_info.return_value = {
'volgroup': 'lvm_volgroup',
'srcvol': 'lvm_device',
'snap_path': 'snap_path'}
mock_process = Mock()
mock_process.communicate.return_value = '', ''
mock_process.returncode = 1
mock_popen.return_value = mock_process
backup_opt = Mock()
backup_opt.snapshot = True
backup_opt.lvm_auto_snap = ''
backup_opt.path_to_backup = '/just/a/path'
backup_opt.lvm_dirmount = '/var/mountpoint'
backup_opt.lvm_snapperm = 'ro'
with self.assertRaises(Exception) as cm:
lvm.lvm_snap(backup_opt)
the_exception = cm.exception
self.assertIn('lvm snapshot creation error', the_exception.message)
def test_no_lvm_configured_returns_false(self, mock_validate_lvm_params):
backup_opt = Mock()
backup_opt.lvm_auto_snap = ''
mock_validate_lvm_params.return_value = False
backup_opt.snapshot = False
self.assertFalse(lvm.lvm_snap(backup_opt))
