Fixing workbook events creation

* Workbook events creation is now called from a REST controller rather
 than from DB API. This is more proper place (level of abstraction).
* Fixed workbook definition controller and evets tests.

Change-Id: Ib17d0b0dae614c474c161cd12ecbb1b05aea74a8

mistral/api/controllers/v1/workbook_definition.py

@@ -18,6 +18,7 @@ from pecan import request
 
 from mistral.openstack.common import log as logging
 from mistral.db import api as db_api
+from mistral.services import scheduler
 
 
 LOG = logging.getLogger(__name__)
@@ -38,4 +39,7 @@ class WorkbookDefinitionController(rest.RestController):
         LOG.debug("Update workbook definition [workbook_name=%s, text=%s]" %
                   (workbook_name, text))
 
-        return db_api.workbook_definition_put(workbook_name, text)
+        wb = db_api.workbook_definition_put(workbook_name, text)
+        scheduler.create_associated_events(wb)
+
+        return wb['definition']

mistral/db/api.py

@@ -16,7 +16,6 @@
 
 from mistral.openstack.common.db import api as db_api
 from mistral.openstack.common import log as logging
-from mistral.services import scheduler
 
 # Workbooks
 
@@ -83,9 +82,7 @@ def workbook_definition_get(workbook_name):
 
 
 def workbook_definition_put(workbook_name, text):
-    workbook = IMPL.workbook_update(workbook_name, {'definition': text})
-    scheduler.create_associated_events(workbook)
-    return workbook
+    return IMPL.workbook_update(workbook_name, {'definition': text})
 
 
 # Executions

mistral/tests/api/v1/controllers/test_workbook_definition.py

@@ -46,10 +46,21 @@ class TestWorkbookDefinitionController(base.FunctionalTest):
         self.assertEqual(DEFINITION, resp.text)
 
     def test_put(self):
-        new_definition = "new definition"
+        new_definition = """
+        Workflow:
+            events:
+                create-vms:
+                    type: periodic
+                    tasks: create-vms
+                    parameters:
+                        cron-pattern: "* * * * *"
+        """
 
         db_api.workbook_definition_put = \
-            mock.MagicMock(return_value=new_definition)
+            mock.MagicMock(return_value={
+                'name': 'my_workbook',
+                'definition': new_definition
+            })
 
         resp = self.app.put('/v1/workbooks/my_workbook/definition',
                             new_definition,
@@ -57,3 +68,10 @@ class TestWorkbookDefinitionController(base.FunctionalTest):
 
         self.assertEqual(resp.status_int, 200)
         self.assertEqual(new_definition, resp.body)
+
+        # Check that associated events have been created in DB.
+        events = db_api.events_get(workbook_name='my_workbook')
+
+        self.assertEqual(events[0]['name'], 'create-vms')
+        self.assertEqual(events[0]['pattern'], '* * * * *')
+        self.assertEqual(events[0]['workbook_name'], 'my_workbook')

mistral/tests/unit/events/test_events.py

@@ -20,6 +20,7 @@ from mistral.db import api as db_api
 from mistral import dsl
 from mistral.tests.unit import base
 from mistral import version
+from mistral.services import scheduler
 
 
 class EventsTest(base.DbTestCase):
@@ -30,9 +31,14 @@ class EventsTest(base.DbTestCase):
             "tests/resources/test_rest.yaml")).read()
         self.dsl = dsl.Parser(self.doc)
 
-    def test_events_create_after_wb_put(self):
-        db_api.workbook_create({'name': 'my_workbook'})
-        db_api.workbook_definition_put('my_workbook', self.doc)
+    def test_create_associated_events(self):
+        workbook = {
+            'name': 'my_workbook',
+            'definition': self.doc
+        }
+
+        scheduler.create_associated_events(workbook)
+
         events = db_api.events_get(workbook_name='my_workbook')
 
         self.assertEqual(events[0]['name'], 'create-vms')