def test_vm_disk_snapshot_create_no_description(self):
        self.assertRaises(SaltCloudSystemExit,
                          opennebula.vm_disk_snapshot_create,
                          VM_NAME,
                          call='action',
                          kwargs={'disk_id': '0'})
Tests that a SaltCloudSystemExit is raised when the image_name arg is missing.
dataset/ETHPy150Open saltstack/salt/tests/unit/cloud/clouds/opennebula_test.py/OpenNebulaTestCase.test_vm_disk_snapshot_create_no_description