def test_ensure_lun_available(self,
mock_get_iscsi_target_sessions,
mock_get_iscsi_device_from_session):
expected_try_count = 5
mock_get_iscsi_target_sessions.return_value = [
mock.Mock(SessionId=mock.sentinel.session_id)]
fake_exc = exceptions.ISCSIInitiatorAPIException(
message='fake_message',
error_code=1,
func_name='fake_func')
dev_num_side_eff = [None, -1, fake_exc, mock.sentinel.dev_num]
fake_device = mock.Mock()
type(fake_device.StorageDeviceNumber).DeviceNumber = (
mock.PropertyMock(side_effect=dev_num_side_eff))
mock_get_dev_side_eff = [None] + [fake_device] * 4
mock_get_iscsi_device_from_session.side_effect = mock_get_dev_side_eff
self._initiator.ensure_lun_available(
mock.sentinel.target_iqn,
mock.sentinel.target_lun,
rescan_attempts=6)
mock_get_iscsi_target_sessions.assert_has_calls(
[mock.call(mock.sentinel.target_iqn)] * expected_try_count)
mock_get_iscsi_device_from_session.assert_has_calls(
[mock.call(mock.sentinel.session_id,
mock.sentinel.target_lun)] * 4)
self.assertEqual(
4,
self._initiator._diskutils.rescan_disks.call_count)
def test_ensure_lun_available(self,
mock_sleep,
mock_get_iscsi_target_sessions,
mock_get_iscsi_device_from_session,
rescan_disks=False,
retry_interval=0):
retry_count = 6
mock_get_iscsi_target_sessions.return_value = [
mock.Mock(SessionId=mock.sentinel.session_id)
]
fake_exc = exceptions.ISCSIInitiatorAPIException(
message='fake_message', error_code=1, func_name='fake_func')
dev_num_side_eff = [None, -1] + [mock.sentinel.dev_num] * 3
dev_path_side_eff = ([mock.sentinel.dev_path] * 2 + [None] +
[mock.sentinel.dev_path] * 2)
fake_device = mock.Mock()
type(
fake_device.StorageDeviceNumber).DeviceNumber = (mock.PropertyMock(
side_effect=dev_num_side_eff))
type(fake_device).LegacyName = (mock.PropertyMock(
side_effect=dev_path_side_eff))
mock_get_dev_side_eff = [None, fake_exc] + [fake_device] * 5
mock_get_iscsi_device_from_session.side_effect = mock_get_dev_side_eff
self._diskutils.is_mpio_disk.side_effect = [False, True]
dev_num, dev_path = self._initiator.ensure_lun_available(
mock.sentinel.target_iqn,
mock.sentinel.target_lun,
rescan_attempts=retry_count,
retry_interval=retry_interval,
rescan_disks=rescan_disks,
ensure_mpio_claimed=True)
self.assertEqual(mock.sentinel.dev_num, dev_num)
self.assertEqual(mock.sentinel.dev_path, dev_path)
mock_get_iscsi_target_sessions.assert_has_calls(
[mock.call(mock.sentinel.target_iqn)] * (retry_count + 1))
mock_get_iscsi_device_from_session.assert_has_calls(
[mock.call(mock.sentinel.session_id, mock.sentinel.target_lun)] *
retry_count)
self._diskutils.is_mpio_disk.assert_has_calls(
[mock.call(mock.sentinel.dev_num)] * 2)
expected_rescan_count = retry_count if rescan_disks else 0
self.assertEqual(expected_rescan_count,
self._diskutils.rescan_disks.call_count)
if retry_interval:
mock_sleep.assert_has_calls([mock.call(retry_interval)] *
retry_count)
else:
self.assertFalse(mock_sleep.called)
def test_get_iscsi_initiator_exception(self, mock_get_fqdn):
fake_fqdn = 'fakehost.FAKE-DOMAIN.com'
fake_exc = exceptions.ISCSIInitiatorAPIException(
message='fake_message', error_code=1, func_name='fake_func')
self._mock_run.side_effect = fake_exc
mock_get_fqdn.return_value = fake_fqdn
resulted_iqn = self._initiator.get_iscsi_initiator()
expected_iqn = "%s:%s" % (self._initiator._MS_IQN_PREFIX,
fake_fqdn.lower())
self.assertEqual(expected_iqn, resulted_iqn)