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stream_test.py
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stream_test.py
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#!/usr/bin/env python3
# Copyright 2017 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# pylint: disable=missing-docstring
import unittest
import stream
import make_db_test
import model
class FakePullResponse:
def __init__(self, messages):
self.received_messages = messages
class FakeReceivedMessage:
def __init__(self, ack_id, message):
self.ack_id = ack_id
self.message = message
class FakePubSubMessage:
def __init__(self, data, attributes):
self.data = data
self.attributes = attributes
class FakeSub:
def __init__(self, fake_pr):
self.fake_pr = fake_pr
self.trace = []
def pull(self, subscription, return_immediately=False, **_kwargs):
self.trace.append(['pull', subscription, return_immediately])
return self.fake_pr.pop(0)
def acknowledge(self, subscription, ack_ids):
self.trace.append(['ack', subscription, ack_ids])
def modify_ack_deadline(self, subscription, ack_ids, ack_deadline_seconds):
self.trace.append(['modify-ack', subscription, ack_ids, ack_deadline_seconds])
class FakeClient:
def __init__(self, trace=None):
self.trace = [] if trace is None else trace
def insert_rows(self, _, *args, **kwargs):
self.trace.append(['insert-rows', args, kwargs])
return []
class FakeTable:
def __init__(self, name, schema):
self.friendly_name = name
self.schema = schema
class FakeSchemaField:
def __init__(self, **kwargs):
self.__dict__ = kwargs
class StreamTest(unittest.TestCase):
def test_main(self):
# It's easier to run a full integration test with stubbed-out
# external interfaces and validate the trace than it is to test
# each individual piece.
# The components are mostly tested in make_*_test.py.
db = model.Database(':memory:')
fake_sub = FakeSub(
[
FakePullResponse(
[FakeReceivedMessage(
'a',
FakePubSubMessage(
'no_data',
{'eventType': 'OBJECT_DELETE'})
)]
),
FakePullResponse(
[FakeReceivedMessage(
'b',
FakePubSubMessage(
'no_data', {
'eventType': 'OBJECT_FINALIZE',
'objectId': 'logs/fake/123/finished.json',
'bucketId': 'kubernetes-jenkins'})
)]
),
FakePullResponse([]),
FakePullResponse(
[FakeReceivedMessage(
'c',
FakePubSubMessage('no_data', {
'eventType': 'OBJECT_FINALIZE',
'objectId': 'logs/fake/123/finished.json',
'bucketId': 'kubernetes-jenkins'})
)]
),
FakePullResponse([]),
FakePullResponse(
[FakeReceivedMessage(
'd',
FakePubSubMessage('no_data', {
'eventType': 'OBJECT_FINALIZE',
'objectId': 'logs/fake/124/started.json'})
)]
),
FakePullResponse([]),
]
)
fake_client = FakeClient()
fake_table = FakeTable('day', stream.load_schema(FakeSchemaField))
fake_sub_path = 'projects/{project_id}/subscriptions/{sub}'
tables = {'day': (fake_table, 'incr')}
stream.main(
db,
fake_sub, fake_sub_path,
fake_client, tables,
make_db_test.MockedClient, [1, 0, 0, 0].pop)
# uncomment if the trace changes
# import pprint; pprint.pprint(fake_sub.trace)
# import pprint; pprint.pprint(fake_client.trace)
# self.maxDiff = 3000
now = make_db_test.MockedClient.NOW
self.assertEqual(
fake_sub.trace,
[['pull', fake_sub_path, False],
['pull', fake_sub_path, True],
['pull', fake_sub_path, True],
['ack', fake_sub_path, ['a']],
['modify-ack', fake_sub_path, ['b'], 180],
['ack', fake_sub_path, ['b']],
['pull', fake_sub_path, False],
['pull', fake_sub_path, True],
['modify-ack', fake_sub_path, ['c'], 180],
['ack', fake_sub_path, ['c']],
['pull', fake_sub_path, False],
['pull', fake_sub_path, True],
['ack', fake_sub_path, ['d']]])
self.assertEqual(
fake_client.trace,
[['insert-rows',
([{'elapsed': 5,
'finished': now,
'job': 'fake',
'number': 123,
'passed': True,
'path': 'gs://kubernetes-jenkins/logs/fake/123',
'result': 'SUCCESS',
'started': now - 5,
'test': [{'name': 'Foo', 'time': 3.0},
{'failed': True,
'failure_text': 'stacktrace',
'name': 'Bad',
'time': 4.0}],
'tests_failed': 1,
'tests_run': 2}],),
{'skip_invalid_rows': True}]])
if __name__ == '__main__':
unittest.main()