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Subject [GitHub] phani8996 commented on a change in pull request #4111: [AIRFLOW-3266] Add AWS Athena Operator and hook
Date Fri, 02 Nov 2018 14:47:11 GMT
phani8996 commented on a change in pull request #4111: [AIRFLOW-3266] Add AWS Athena Operator
and hook

 File path: tests/contrib/operators/
 @@ -48,42 +49,62 @@
+class Iterator(object):
+    def __init__(self, tuple):
+        self.tuple = tuple
+    def __iter__(self):
+        return self
+    def __next__(self):
+        return self.tuple[randrange(len(self.tuple))]
 class TestAWSAthenaOperator(unittest.TestCase):
     def setUp(self):
         self.athena = AWSAthenaOperator(task_id='test_aws_athena_operator', query='SELECT
                                         database='TEST_DATABASE', output_location='s3://test_s3_bucket/',
-                                        client_request_token='eac427d0-1c6d-4dfb-96aa-2835d3ac6595')
+                                        client_request_token='eac427d0-1c6d-4dfb-96aa-2835d3ac6595',
+                                        sleep_time=1)
     def test_init(self):
         self.assertEqual(self.athena.task_id, MOCK_DATA['task_id'])
         self.assertEqual(self.athena.query, MOCK_DATA['query'])
         self.assertEqual(self.athena.database, MOCK_DATA['database'])
         self.assertEqual(self.athena.aws_conn_id, 'aws_default')
         self.assertEqual(self.athena.client_request_token, MOCK_DATA['client_request_token'])
+        self.assertEqual(self.athena.sleep_time, 1)
+    @mock.patch.object(AWSAthenaHook, 'check_query_status', side_effect=Iterator(("RUNNING",
 Review comment:
   At first i thought of having `side_effect=("RUNNING", "SUCCESS",)`, but later i realised
in a real query, task won't reach state `SUCCESS` in single sleep cycle. Randomly picking
state sounds little odd but for our case, it will serve the process. We will get multiple
`RUNNING` states and after few sleep cycles we will encounter `SUCCESS` state and `poll_query_results`
will return the final state. To make this more understandable we can add bias to state `RUNNING`
and make it look realistic. Returning `SUCCESS` in first check symbolises a fast query and
`SUCCESS` after few checks symbolises long running queries which we cannot achieve with plain
`side_effect=("RUNNING", "SUCCESS",)`

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