'Array returns error that the lun already exists.'

def test_create_lun_fails(self):

    response = {'success': False, 'msg': 'Duplicate    Virtual    Device    name.    Error:    0x90010022'}
    conf = {'lun.create_lun.return_value': response}
    self.driver.vmem_mg = self.setup_mock_concerto(m_conf=conf)
    self.driver._get_storage_pool = mock.Mock(return_value=DEFAULT_THICK_POOL)
    self.driver._send_cmd = mock.Mock(return_value=response)
    self.assertIsNone(self.driver._create_lun(VOLUME))
