def test_read_from_pubsub_flaky(self):
number_of_elements = 10
mock_pubsub = mock.Mock()
subscription_path = "project/fakeproj/subscriptions/fakesub"
data = b'data'
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response(
[test_utils.PullResponseMessage(data, ack_id=ack_id)])
class FlakyPullResponse(object):
def __init__(self, pull_response):
self.pull_response = pull_response
self._state = -1
def __call__(self, *args, **kwargs):
self._state += 1
if self._state % 3 == 0:
raise gexc.RetryError("", "")
if self._state % 3 == 1:
raise gexc.DeadlineExceeded("")
if self._state % 3 == 2:
return self.pull_response
mock_pubsub.pull.side_effect = FlakyPullResponse(pull_response)
output = utils.read_from_pubsub(mock_pubsub,
subscription_path,
number_of_elements=number_of_elements)
self.assertEqual([data] * number_of_elements, output)
self._assert_ack_ids_equal(mock_pubsub, [ack_id] * number_of_elements)
def test_read_messages_timestamp_attribute_missing(self, mock_pubsub):
data = b'data'
attributes = {}
publish_time_secs = 1520861821
publish_time_nanos = 234567000
publish_time = '2018-03-12T13:37:01.234567Z'
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response([
test_utils.PullResponseMessage(data, attributes, publish_time_secs,
publish_time_nanos, ack_id)
])
expected_elements = [
TestWindowedValue(PubsubMessage(data, attributes),
timestamp.Timestamp.from_rfc3339(publish_time),
[window.GlobalWindow()]),
]
mock_pubsub.return_value.pull.return_value = pull_response
options = PipelineOptions([])
options.view_as(StandardOptions).streaming = True
with TestPipeline(options=options) as p:
pcoll = (p
| ReadFromPubSub('projects/fakeprj/topics/a_topic',
None,
None,
with_attributes=True,
timestamp_attribute='nonexistent'))
assert_that(pcoll, equal_to(expected_elements), reify_windows=True)
mock_pubsub.return_value.acknowledge.assert_has_calls(
[mock.call(mock.ANY, [ack_id])])
mock_pubsub.return_value.api.transport.channel.close.assert_has_calls(
[mock.call()])
def test_read_messages_timestamp_attribute_fail_parse(self, mock_pubsub):
data = b'data'
attributes = {'time': '1337 unparseable'}
publish_time_secs = 1520861821
publish_time_nanos = 234567000
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response([
test_utils.PullResponseMessage(data, attributes, publish_time_secs,
publish_time_nanos, ack_id)
])
mock_pubsub.return_value.pull.return_value = pull_response
options = PipelineOptions([])
options.view_as(StandardOptions).streaming = True
p = TestPipeline(options=options)
_ = (p
| ReadFromPubSub('projects/fakeprj/topics/a_topic',
None,
None,
with_attributes=True,
timestamp_attribute='time'))
with self.assertRaisesRegex(ValueError, r'parse'):
p.run()
mock_pubsub.return_value.acknowledge.assert_not_called()
mock_pubsub.return_value.api.transport.channel.close.assert_has_calls(
[mock.call()])
def test_read_messages_timestamp_attribute_milli_success(
self, mock_pubsub):
data = b'data'
attributes = {'time': '1337'}
publish_time_secs = 1520861821
publish_time_nanos = 234567000
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response([
test_utils.PullResponseMessage(data, attributes, publish_time_secs,
publish_time_nanos, ack_id)
])
expected_elements = [
TestWindowedValue(
PubsubMessage(data, attributes),
timestamp.Timestamp(micros=int(attributes['time']) * 1000),
[window.GlobalWindow()]),
]
mock_pubsub.return_value.pull.return_value = pull_response
options = PipelineOptions([])
options.view_as(StandardOptions).streaming = True
with TestPipeline(options=options) as p:
pcoll = (p
| ReadFromPubSub('projects/fakeprj/topics/a_topic',
None,
None,
with_attributes=True,
timestamp_attribute='time'))
assert_that(pcoll, equal_to(expected_elements), reify_windows=True)
mock_pubsub.return_value.acknowledge.assert_has_calls(
[mock.call(subscription=mock.ANY, ack_ids=[ack_id])])
mock_pubsub.return_value.close.assert_has_calls([mock.call()])
def test_read_messages_timestamp_attribute_rfc3339_success(
self, mock_pubsub):
data = 'data'
attributes = {'time': '2018-03-12T13:37:01.234567Z'}
publish_time_secs = 1337000000
publish_time_nanos = 133700000
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response([
test_utils.PullResponseMessage(data, attributes, publish_time_secs,
publish_time_nanos, ack_id)
])
expected_elements = [
TestWindowedValue(
PubsubMessage(data, attributes),
timestamp.Timestamp.from_rfc3339(attributes['time']),
[window.GlobalWindow()]),
]
mock_pubsub.return_value.pull.return_value = pull_response
p = TestPipeline()
p.options.view_as(StandardOptions).streaming = True
pcoll = (p
| ReadFromPubSub('projects/fakeprj/topics/a_topic',
None,
None,
with_attributes=True,
timestamp_attribute='time'))
assert_that(pcoll, equal_to(expected_elements), reify_windows=True)
p.run()
mock_pubsub.return_value.acknowledge.assert_has_calls(
[mock.call(mock.ANY, [ack_id])])
def test_read_messages_timestamp_attribute_fail_parse(patch_sub_client):
exp_entity_id = "entity_id"
kmsg = klio_pb2.KlioMessage()
kmsg.data.element = bytes(exp_entity_id, "utf-8")
data = kmsg.SerializeToString()
attributes = {"time": "1337 unparseable"}
publish_time_secs = 1520861821
publish_time_nanos = 234567000
ack_id = "ack_id"
pull_response = beam_test_utils.create_pull_response([
beam_test_utils.PullResponseMessage(data, attributes,
publish_time_secs,
publish_time_nanos, ack_id)
])
patch_sub_client.pull.return_value = pull_response
options = pipeline_options.PipelineOptions([])
options.view_as(pipeline_options.StandardOptions).streaming = True
p = beam_test_pipeline.TestPipeline(options=options)
_ = p | b_pubsub.ReadFromPubSub(
"projects/fakeprj/topics/a_topic",
None,
None,
with_attributes=True,
timestamp_attribute="time",
)
with pytest.raises(ValueError, match=r"parse"):
p.run()
patch_sub_client.acknowledge.assert_not_called()
patch_sub_client.api.transport.channel.close.assert_called_with()
def test_read_messages_timestamp_attribute_rfc3339_success(
mocker,
patch_sub_client,
patch_msg_manager,
):
exp_entity_id = "entity_id"
kmsg = klio_pb2.KlioMessage()
kmsg.data.element = bytes(exp_entity_id, "utf-8")
data = kmsg.SerializeToString()
attributes = {"time": "2018-03-12T13:37:01.234567Z"}
publish_time_secs = 1337000000
publish_time_nanos = 133700000
ack_id = "ack_id"
pull_response = beam_test_utils.create_pull_response([
beam_test_utils.PullResponseMessage(data, attributes,
publish_time_secs,
publish_time_nanos, ack_id)
])
pmsg = b_pubsub.PubsubMessage(data, attributes)
expected_elements = [
beam_testing_util.TestWindowedValue(
pmsg,
beam_utils.timestamp.Timestamp.from_rfc3339(attributes["time"]),
[beam_transforms.window.GlobalWindow()],
),
]
patch_sub_client.pull.return_value = pull_response
options = pipeline_options.PipelineOptions([])
options.view_as(pipeline_options.StandardOptions).streaming = True
with beam_test_pipeline.TestPipeline(options=options) as p:
pcoll = p | b_pubsub.ReadFromPubSub(
"projects/fakeprj/topics/a_topic",
None,
None,
with_attributes=True,
timestamp_attribute="time",
)
# Check original functionality that was kept the same
beam_testing_util.assert_that(
pcoll,
beam_testing_util.equal_to(expected_elements),
reify_windows=True,
)
# Check overridden functionality:
# 1. Check that auto-acking is skipped
patch_sub_client.acknowledge.assert_not_called()
# 2. Check that MessageManager daemon threads were started
patch_msg_manager.assert_called_once_with(
patch_sub_client.subscription_path())
# 3. Check that messages were added to the MessageManager
patch_msg_manager.return_value.add.assert_called_once_with(ack_id, pmsg)
# 4. Check that one message is handled at a time, instead of the
# original 10
patch_sub_client.pull.assert_called_once_with(mocker.ANY,
max_messages=1,
return_immediately=True)
patch_sub_client.api.transport.channel.close.assert_called_once_with()
def test_read_messages_success(self, mock_pubsub):
data = 'data'
publish_time_secs = 1520861821
publish_time_nanos = 234567000
attributes = {'key': 'value'}
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response([
test_utils.PullResponseMessage(data, attributes, publish_time_secs,
publish_time_nanos, ack_id)
])
expected_elements = [
TestWindowedValue(PubsubMessage(data, attributes),
timestamp.Timestamp(1520861821.234567),
[window.GlobalWindow()])
]
mock_pubsub.return_value.pull.return_value = pull_response
options = PipelineOptions([])
options.view_as(StandardOptions).streaming = True
p = TestPipeline(options=options)
pcoll = (p
| ReadFromPubSub('projects/fakeprj/topics/a_topic',
None,
None,
with_attributes=True))
assert_that(pcoll, equal_to(expected_elements), reify_windows=True)
p.run()
mock_pubsub.return_value.acknowledge.assert_has_calls(
[mock.call(mock.ANY, [ack_id])])
def test_read_from_pubsub(self):
mock_pubsub = mock.Mock()
subscription_path = "project/fakeproj/subscriptions/fakesub"
data = b'data'
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response(
[test_utils.PullResponseMessage(data, ack_id=ack_id)])
mock_pubsub.pull.return_value = pull_response
output = utils.read_from_pubsub(
mock_pubsub, subscription_path, number_of_elements=1)
self.assertEqual([data], output)
mock_pubsub.acknowledge.assert_called_once_with(subscription_path, [ack_id])
def test_read_data_success(self, mock_pubsub):
data_encoded = u'🤷 ¯\\_(ツ)_/¯'.encode('utf-8')
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response(
[test_utils.PullResponseMessage(data_encoded, ack_id=ack_id)])
expected_elements = [data_encoded]
mock_pubsub.return_value.pull.return_value = pull_response
p = TestPipeline()
p.options.view_as(StandardOptions).streaming = True
pcoll = (p
| ReadFromPubSub('projects/fakeprj/topics/a_topic', None,
None))
assert_that(pcoll, equal_to(expected_elements))
p.run()
mock_pubsub.return_value.acknowledge.assert_has_calls(
[mock.call(mock.ANY, [ack_id])])
def test_read_from_pubsub_with_attributes(self):
mock_pubsub = mock.Mock()
subscription_path = "project/fakeproj/subscriptions/fakesub"
data = b'data'
ack_id = 'ack_id'
attributes = {'key': 'value'}
message = PubsubMessage(data, attributes)
pull_response = test_utils.create_pull_response(
[test_utils.PullResponseMessage(data, attributes, ack_id=ack_id)])
mock_pubsub.pull.return_value = pull_response
output = utils.read_from_pubsub(mock_pubsub,
subscription_path,
with_attributes=True,
number_of_elements=1)
self.assertEqual([message], output)
mock_pubsub.acknowledge.assert_called_once_with(
subscription=subscription_path, ack_ids=[ack_id])
def test_read_from_pubsub_many(self):
response_size = 33
number_of_elements = 100
mock_pubsub = mock.Mock()
subscription_path = "project/fakeproj/subscriptions/fakesub"
data_list = [
'data {}'.format(i).encode("utf-8")
for i in range(number_of_elements)
]
attributes_list = [{
'key': 'value {}'.format(i)
} for i in range(number_of_elements)]
ack_ids = ['ack_id_{}'.format(i) for i in range(number_of_elements)]
messages = [
PubsubMessage(data, attributes)
for data, attributes in zip(data_list, attributes_list)
]
response_messages = [
test_utils.PullResponseMessage(data, attributes, ack_id=ack_id)
for data, attributes, ack_id in zip(data_list, attributes_list,
ack_ids)
]
class SequentialPullResponse(object):
def __init__(self, response_messages, response_size):
self.response_messages = response_messages
self.response_size = response_size
self._index = 0
def __call__(self, *args, **kwargs):
start = self._index
self._index += self.response_size
response = test_utils.create_pull_response(
self.response_messages[start:start + self.response_size])
return response
mock_pubsub.pull.side_effect = SequentialPullResponse(
response_messages, response_size)
output = utils.read_from_pubsub(mock_pubsub,
subscription_path,
with_attributes=True,
number_of_elements=number_of_elements)
self.assertEqual(messages, output)
self._assert_ack_ids_equal(mock_pubsub, ack_ids)
def test_read_strings_success(self, mock_pubsub):
data = u'🤷 ¯\\_(ツ)_/¯'
data_encoded = data.encode('utf-8')
ack_id = 'ack_id'
pull_response = test_utils.create_pull_response(
[test_utils.PullResponseMessage(data_encoded, ack_id=ack_id)])
expected_elements = [data]
mock_pubsub.return_value.pull.return_value = pull_response
options = PipelineOptions([])
options.view_as(StandardOptions).streaming = True
with TestPipeline(options=options) as p:
pcoll = (p
| ReadStringsFromPubSub('projects/fakeprj/topics/a_topic',
None, None))
assert_that(pcoll, equal_to(expected_elements))
mock_pubsub.return_value.acknowledge.assert_has_calls(
[mock.call(subscription=mock.ANY, ack_ids=[ack_id])])
mock_pubsub.return_value.close.assert_has_calls([mock.call()])
