Adds more testcases to test_telemetry_alarming_api

This submission is to add more testcases in "test_telemetry_alarming_api.py"
test_script. The test cases added are for scenarios "update-alarm",
"set-get-alarm-state", "create_delete_combination_alarm".
Removes alarm create logic from list_alarms method and uses the alarms
in setUp for verification.

Supporting functions "update_alaram", "alarm_get_state", "alarm_get_state"
are added and "put" method is modified in telemetry_client_base.py script.

Change-Id: Ie15cc48ee404db62fb9d74392ed2acc826b852d7
Implements: bp add-basic-ceilometer-tests
diff --git a/tempest/api/telemetry/test_telemetry_alarming_api.py b/tempest/api/telemetry/test_telemetry_alarming_api.py
index a59d3ae..3472b31 100644
--- a/tempest/api/telemetry/test_telemetry_alarming_api.py
+++ b/tempest/api/telemetry/test_telemetry_alarming_api.py
@@ -11,6 +11,7 @@
 #    under the License.
 
 from tempest.api.telemetry import base
+from tempest.common.utils import data_utils
 from tempest import exceptions
 from tempest.test import attr
 
@@ -18,46 +19,96 @@
 class TelemetryAlarmingAPITestJSON(base.BaseTelemetryTest):
     _interface = 'json'
 
+    @classmethod
+    def setUpClass(cls):
+        super(TelemetryAlarmingAPITestJSON, cls).setUpClass()
+        cls.rule = {'meter_name': 'cpu_util',
+                    'comparison_operator': 'gt',
+                    'threshold': 80.0,
+                    'period': 70}
+        for i in range(2):
+            cls.create_alarm(threshold_rule=cls.rule)
+
     @attr(type="gate")
     def test_alarm_list(self):
-        # Create an alarm to verify in the list of alarms
-        created_alarm_ids = list()
-        fetched_ids = list()
-        rules = {'meter_name': 'cpu_util',
-                 'comparison_operator': 'gt',
-                 'threshold': 80.0,
-                 'period': 70}
-        for i in range(3):
-            resp, body = self.create_alarm(threshold_rule=rules)
-            created_alarm_ids.append(body['alarm_id'])
-
         # List alarms
         resp, alarm_list = self.telemetry_client.list_alarms()
-        self.assertEqual(int(resp['status']), 200)
+        self.assertEqual(200, resp.status)
 
         # Verify created alarm in the list
         fetched_ids = [a['alarm_id'] for a in alarm_list]
-        missing_alarms = [a for a in created_alarm_ids if a not in fetched_ids]
+        missing_alarms = [a for a in self.alarm_ids if a not in fetched_ids]
         self.assertEqual(0, len(missing_alarms),
                          "Failed to find the following created alarm(s)"
                          " in a fetched list: %s" %
                          ', '.join(str(a) for a in missing_alarms))
 
     @attr(type="gate")
-    def test_create_alarm(self):
-        rules = {'meter_name': 'cpu_util',
-                 'comparison_operator': 'gt',
-                 'threshold': 80.0,
-                 'period': 70}
-        resp, body = self.create_alarm(threshold_rule=rules)
-        self.alarm_id = body['alarm_id']
-        self.assertEqual(int(resp['status']), 201)
-        self.assertDictContainsSubset(rules, body['threshold_rule'])
-        resp, body = self.telemetry_client.get_alarm(self.alarm_id)
-        self.assertEqual(int(resp['status']), 200)
-        self.assertDictContainsSubset(rules, body['threshold_rule'])
-        resp, _ = self.telemetry_client.delete_alarm(self.alarm_id)
-        self.assertEqual(int(resp['status']), 204)
+    def test_create_update_get_delete_alarm(self):
+        # Create an alarm
+        alarm_name = data_utils.rand_name('telemetry_alarm')
+        resp, body = self.telemetry_client.create_alarm(
+            name=alarm_name, type='threshold', threshold_rule=self.rule)
+        self.assertEqual(201, resp.status)
+        self.assertEqual(alarm_name, body['name'])
+        alarm_id = body['alarm_id']
+        self.assertDictContainsSubset(self.rule, body['threshold_rule'])
+        # Update alarm with new rule and new name
+        new_rule = {'meter_name': 'cpu',
+                    'comparison_operator': 'eq',
+                    'threshold': 70.0,
+                    'period': 60}
+        alarm_name = data_utils.rand_name('telemetry-alarm-update')
+        resp, body = self.telemetry_client.update_alarm(
+            alarm_id,
+            threshold_rule=new_rule,
+            name=alarm_name,
+            type='threshold')
+        self.assertEqual(200, resp.status)
+        self.assertEqual(alarm_name, body['name'])
+        self.assertDictContainsSubset(new_rule, body['threshold_rule'])
+        # Get and verify details of an alarm after update
+        resp, body = self.telemetry_client.get_alarm(alarm_id)
+        self.assertEqual(200, resp.status)
+        self.assertEqual(alarm_name, body['name'])
+        self.assertDictContainsSubset(new_rule, body['threshold_rule'])
+        # Delete alarm and verify if deleted
+        resp, _ = self.telemetry_client.delete_alarm(alarm_id)
+        self.assertEqual(204, resp.status)
         self.assertRaises(exceptions.NotFound,
-                          self.telemetry_client.get_alarm,
-                          self.alarm_id)
+                          self.telemetry_client.get_alarm, alarm_id)
+
+    @attr(type="gate")
+    def test_set_get_alarm_state(self):
+        alarm_states = ['ok', 'alarm', 'insufficient data']
+        _, alarm = self.create_alarm(threshold_rule=self.rule)
+        # Set alarm state and verify
+        new_state =\
+            [elem for elem in alarm_states if elem != alarm['state']][0]
+        resp, state = self.telemetry_client.alarm_set_state(alarm['alarm_id'],
+                                                            new_state)
+        self.assertEqual(200, resp.status)
+        self.assertEqual(new_state, state)
+        # Get alarm state and verify
+        resp, state = self.telemetry_client.alarm_get_state(alarm['alarm_id'])
+        self.assertEqual(200, resp.status)
+        self.assertEqual(new_state, state)
+
+    @attr(type="gate")
+    def test_create_delete_alarm_with_combination_rule(self):
+        rule = {"alarm_ids": self.alarm_ids,
+                "operator": "or"}
+        # Verifies alarm create
+        alarm_name = data_utils.rand_name('combination_alarm')
+        resp, body = self.telemetry_client.create_alarm(name=alarm_name,
+                                                        combination_rule=rule,
+                                                        type='combination')
+        self.assertEqual(201, resp.status)
+        self.assertEqual(alarm_name, body['name'])
+        alarm_id = body['alarm_id']
+        self.assertDictContainsSubset(rule, body['combination_rule'])
+        # Verify alarm delete
+        resp, _ = self.telemetry_client.delete_alarm(alarm_id)
+        self.assertEqual(204, resp.status)
+        self.assertRaises(exceptions.NotFound,
+                          self.telemetry_client.get_alarm, alarm_id)
diff --git a/tempest/services/telemetry/telemetry_client_base.py b/tempest/services/telemetry/telemetry_client_base.py
index 610f07b..a073f54 100644
--- a/tempest/services/telemetry/telemetry_client_base.py
+++ b/tempest/services/telemetry/telemetry_client_base.py
@@ -73,7 +73,10 @@
         return resp, body
 
     def put(self, uri, body):
-        return self.rest_client.put(uri, body)
+        body = self.serialize(body)
+        resp, body = self.rest_client.put(uri, body)
+        body = self.deserialize(body)
+        return resp, body
 
     def get(self, uri):
         resp, body = self.rest_client.get(uri)
@@ -133,3 +136,15 @@
     def create_alarm(self, **kwargs):
         uri = "%s/alarms" % self.uri_prefix
         return self.post(uri, kwargs)
+
+    def update_alarm(self, alarm_id, **kwargs):
+        uri = "%s/alarms/%s" % (self.uri_prefix, alarm_id)
+        return self.put(uri, kwargs)
+
+    def alarm_get_state(self, alarm_id):
+        uri = "%s/alarms/%s/state" % (self.uri_prefix, alarm_id)
+        return self.get(uri)
+
+    def alarm_set_state(self, alarm_id, state):
+        uri = "%s/alarms/%s/state" % (self.uri_prefix, alarm_id)
+        return self.put(uri, state)