Fixed logic of determining environment status

DEPLOYED status of sessions was not handled properly - the bug was
caused that if environment was deployed with failure it may remain with
this status even if it was deployed successfully after that.

Change-Id: I00309a7605067727eca4108e3fedac7bf0998847
Closes-Bug: #1413260

murano/db/services/environments.py

@@ -70,6 +70,8 @@ class EnvironmentServices(object):
                 return states.EnvironmentStatus.DELETE_FAILURE
             elif session.state == states.SessionState.OPENED:
                 has_opened = True
+            elif session.state == states.SessionState.DEPLOYED:
+                break
         if has_opened:
             return states.EnvironmentStatus.PENDING
 

murano/tests/unit/db/services/test_environments.py

@@ -0,0 +1,65 @@
+#    Copyright (c) 2015 Mirantis, Inc.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+import datetime as dt
+
+from oslo.utils import timeutils
+
+from murano.db import models
+from murano.db.services import environments
+from murano.db import session as db_session
+from murano.services import states
+from murano.tests.unit import base
+
+
+class TestEnvironmentServices(base.MuranoWithDBTestCase):
+    def test_environment_ready_if_last_session_deployed_after_failed(self):
+        """If last session was deployed successfully and other session
+        was failed - environment must have status "ready".
+
+        Bug: #1413260
+        """
+        OLD_VERSION = 0
+        LATEST_VERSION = 1
+
+        session = db_session.get_session()
+
+        environment = models.Environment(
+            name='test_environment', tenant_id='test_tenant_id',
+            version=LATEST_VERSION
+        )
+        session.add(environment)
+
+        now = timeutils.utcnow()
+
+        session_1 = models.Session(
+            environment=environment, user_id='test_user_id_1',
+            version=OLD_VERSION,
+            state=states.SessionState.DEPLOY_FAILURE,
+            updated=now, description={}
+        )
+        session_2 = models.Session(
+            environment=environment, user_id='test_user_id_2',
+            version=LATEST_VERSION,
+            state=states.SessionState.DEPLOYED,
+            updated=now + dt.timedelta(minutes=1), description={}
+        )
+        session.add_all([session_1, session_2])
+        session.flush()
+
+        expected_status = states.EnvironmentStatus.READY
+        actual_status = environments.EnvironmentServices.get_status(
+            environment.id
+        )
+
+        self.assertEqual(actual_status, expected_status)