check audit name length

No more than 63 characters

Change-Id: I52adbd7e9f12dd4a8b6977756d788ee0e5d6391a
Closes-Bug: #1744231

watcher/api/controllers/v1/audit.py

@@ -37,6 +37,8 @@ import wsme
 from wsme import types as wtypes
 import wsmeext.pecan as wsme_pecan
 
+from oslo_log import log
+
 from watcher._i18n import _
 from watcher.api.controllers import base
 from watcher.api.controllers import link
@@ -49,6 +51,8 @@ from watcher.common import utils
 from watcher.decision_engine import rpcapi
 from watcher import objects
 
+LOG = log.getLogger(__name__)
+
 
 class AuditPostType(wtypes.Base):
 
@@ -129,6 +133,11 @@ class AuditPostType(wtypes.Base):
                 goal = objects.Goal.get(context, self.goal)
                 self.name = "%s-%s" % (goal.name,
                                        datetime.datetime.utcnow().isoformat())
+        # No more than 63 characters
+        if len(self.name) > 63:
+            LOG.warning("Audit: %s length exceeds 63 characters",
+                        self.name)
+            self.name = self.name[0:63]
 
         return Audit(
             name=self.name,

watcher/tests/api/v1/test_audits.py

@@ -806,6 +806,35 @@ class TestPost(api_base.FunctionalTest):
             strategy_id=strategy['id'], uuid=template_uuid, name=template_name)
         return audit_template
 
+    @mock.patch.object(deapi.DecisionEngineAPI, 'trigger_audit')
+    @mock.patch('oslo_utils.timeutils.utcnow')
+    def test_create_audit_with_name(self, mock_utcnow, mock_trigger_audit):
+        mock_trigger_audit.return_value = mock.ANY
+        test_time = datetime.datetime(2000, 1, 1, 0, 0)
+        mock_utcnow.return_value = test_time
+
+        audit_dict = post_get_test_audit()
+        normal_name = 'this audit name is just for test'
+        # long_name length exceeds 63 characters
+        long_name = normal_name+audit_dict['uuid']
+        del audit_dict['uuid']
+        del audit_dict['state']
+        del audit_dict['interval']
+        del audit_dict['scope']
+        del audit_dict['next_run_time']
+
+        audit_dict['name'] = normal_name
+        response = self.post_json('/audits', audit_dict)
+        self.assertEqual('application/json', response.content_type)
+        self.assertEqual(201, response.status_int)
+        self.assertEqual(normal_name, response.json['name'])
+
+        audit_dict['name'] = long_name
+        response = self.post_json('/audits', audit_dict)
+        self.assertEqual('application/json', response.content_type)
+        self.assertEqual(201, response.status_int)
+        self.assertNotEqual(long_name, response.json['name'])
+
 
 class TestDelete(api_base.FunctionalTest):