transformer base and base unit test-2

Change-Id: Iae5874cdee6bcaf2ceb10a79523c05a62f2a9b9a

requirements.txt

@@ -4,3 +4,5 @@
 
 pbr>=1.6
 Babel>=1.3
+
+oslo.log>=1.12.0 # Apache-2.0

test-requirements.txt

@@ -8,8 +8,10 @@ coverage>=3.6
 discover
 python-subunit>=0.0.18
 sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2
+oslo.log>=1.12.0 # Apache-2.0
 oslosphinx>=2.5.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 testrepository>=0.0.18
 testscenarios>=0.4
 testtools>=1.4.0
+

vitrage/entity_graph/transformer/base.py

@@ -12,4 +12,29 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-__author__ = 'stack'
+import abc
+
+from oslo_log import log as logging
+
+LOG = logging.getLogger(__name__)
+
+
+class Transformer(object):
+
+    @abc.abstractmethod
+    def transform(self, entity_event):
+        """Transforms an entity event into entity wrapper
+
+        :return: An EntityWrapper. EntityWrapper is namedTuple that contains
+        an entity vertex and a list of vertex and an edge pair that describe
+        the entity's neighbors.
+        """
+        pass
+
+    @abc.abstractmethod
+    def get_key_fields(self):
+        pass
+
+    @abc.abstractmethod
+    def get_key(self, entity_event):
+        pass

vitrage/tests/functional/__init__.py

@@ -0,0 +1 @@
+__author__ = 'stack'

vitrage/tests/resources/nova_instance.properties

@@ -0,0 +1,36 @@
+#OS-DCF:diskConfig=AUTO
+#OS-EXT-AZ:availability_zone=nova
+#OS-EXT-SRV-ATTR:host=nyakar-devstack
+#OS-EXT-SRV-ATTR:hostname=vm1
+#OS-EXT-SRV-ATTR:hypervisor_hostname=nyakar-devstack
+#OS-EXT-SRV-ATTR:instance_name=instance-00000001
+#OS-EXT-SRV-ATTR:kernel_id=7197e551-5252-4a11-8c90-bd2c7992f06a
+#OS-EXT-SRV-ATTR:launch_index=0
+#OS-EXT-SRV-ATTR:ramdisk_id=8c9312ac-299e-4e08-b186-6bedcf4bf5b3
+#OS-EXT-SRV-ATTR:reservation_id=r-ttupwtdn
+#OS-EXT-SRV-ATTR:root_device_name=/dev/vda
+#OS-EXT-SRV-ATTR:user_data=-
+#OS-EXT-STS:power_state=1
+#OS-EXT-STS:task_state=-
+#OS-EXT-STS:vm_state=active
+#OS-SRV-USG:launched_at=2015-11-25T14:18:20.000000
+#OS-SRV-USG:terminated_at=-
+#accessIPv4=
+#accessIPv6=
+#config_drive=True
+#| created                              | 2015-11-25T14:18:07Z                                           |
+#| flavor                               | m1.nano (42)                                                   |
+#| hostId                               | aef68acda3cd320a1bd3488e1a4c0c783a48476d14c72ae30824aa5b       |
+#| id                                   | 65481933-6db7-4b1a-839a-d1173e36c519                           |
+#| image                                | cirros-0.3.4-x86_64-uec (86fe163c-c15e-4c36-9ee9-b47a2db567e4) |
+#| key_name                             | -                                                              |
+#| metadata                             | {}                                                             |
+#| name                                 | vm1                                                            |
+#| os-extended-volumes:volumes_attached | []                                                             |
+#| progress                             | 0                                                              |
+#| public network                       | 172.24.4.3, 2001:db8::4                                        |
+#| security_groups                      | default                                                        |
+#| status                               | ACTIVE                                                         |
+#| tenant_id                            | 0683517e1e354d2ba25cba6937f44e79                               |
+#| updated                              | 2015-11-25T14:18:20Z                                           |
+#| user_id                              | f6ab073fc15f44888e8d23497d476270

vitrage/tests/unit/__init__.py

@@ -0,0 +1 @@
+__author__ = 'stack'

vitrage/tests/unit/base.py

@@ -15,6 +15,6 @@
 from oslotest import base
 
 
-class TestCase(base.BaseTestCase):
+class BaseTest(base.BaseTestCase):
 
     """Test case base class for all unit tests."""

vitrage/tests/unit/transformers/__init__.py

@@ -0,0 +1 @@
+__author__ = 'stack'

vitrage/tests/unit/transformers/test_nova_instance_transformer.py

@@ -12,17 +12,15 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-"""
-test_vitrage
-----------------------------------
+from oslo_log import log as logging
+from vitrage.tests.unit import base
 
-Tests for `vitrage` module.
-"""
-
-from vitrage.tests import base
+LOG = logging.getLogger(__name__)
 
 
-class TestVitrage(base.TestCase):
+class TransformNovaInstanceTest(base.BaseTest):
 
-    def test_something(self):
-        pass
+    def test_transform_instance(self):
+
+        LOG.debug('Test transform Nova instance into entity wrapper')
+        self.assertTrue(True)