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subscriber_test.py
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146 lines (105 loc) · 3.79 KB
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# Copyright 2016 Google Inc. All Rights Reserved.
#
# 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.
import os
import time
from gcp_devrel.testing import eventually_consistent
from google.cloud import pubsub_v1
import mock
import pytest
import subscriber
PROJECT = os.environ['GCLOUD_PROJECT']
TOPIC = 'subscription-test-topic'
SUBSCRIPTION = 'subscription-test-subscription'
@pytest.fixture(scope='module')
def publisher_client():
yield pubsub_v1.PublisherClient()
@pytest.fixture(scope='module')
def topic(publisher_client):
topic_path = publisher_client.topic_path(PROJECT, TOPIC)
try:
publisher_client.delete_topic(topic_path)
except:
pass
publisher_client.create_topic(topic_path)
yield topic_path
@pytest.fixture(scope='module')
def subscriber_client():
yield pubsub_v1.SubscriberClient()
@pytest.fixture
def subscription(subscriber_client, topic):
subscription_path = subscriber_client.subscription_path(
PROJECT, SUBSCRIPTION)
try:
subscriber_client.delete_subscription(subscription_path)
except:
pass
subscriber_client.create_subscription(subscription_path, topic=topic)
yield subscription_path
def test_list(subscription, capsys):
@eventually_consistent.call
def _():
subscriber.list_subscriptions(PROJECT, TOPIC)
out, _ = capsys.readouterr()
assert subscription in out
def test_create(subscriber_client):
subscription_path = subscriber_client.subscription_path(
PROJECT, SUBSCRIPTION)
try:
subscriber_client.delete_subscription(subscription_path)
except:
pass
subscriber.create_subscription(PROJECT, TOPIC, SUBSCRIPTION)
@eventually_consistent.call
def _():
assert subscriber_client.get_subscription(subscription_path)
def test_delete(subscriber_client, subscription):
subscriber.delete_subscription(PROJECT, SUBSCRIPTION)
@eventually_consistent.call
def _():
with pytest.raises(Exception):
subscriber_client.get_subscription(subscription)
def _publish_messages(publisher_client, topic):
for n in range(5):
data = u'Message {}'.format(n).encode('utf-8')
publisher_client.publish(
topic, data=data)
def _make_sleep_patch():
real_sleep = time.sleep
def new_sleep(period):
if period == 60:
real_sleep(5)
raise RuntimeError('sigil')
else:
real_sleep(period)
return mock.patch('time.sleep', new=new_sleep)
def test_receive(publisher_client, topic, subscription, capsys):
_publish_messages(publisher_client, topic)
with _make_sleep_patch():
with pytest.raises(RuntimeError, match='sigil'):
subscriber.receive_messages(PROJECT, SUBSCRIPTION)
out, _ = capsys.readouterr()
assert 'Listening' in out
assert subscription in out
assert 'Message 1' in out
def test_receive_with_flow_control(
publisher_client, topic, subscription, capsys):
_publish_messages(publisher_client, topic)
with _make_sleep_patch():
with pytest.raises(RuntimeError, match='sigil'):
subscriber.receive_messages_with_flow_control(
PROJECT, SUBSCRIPTION)
out, _ = capsys.readouterr()
assert 'Listening' in out
assert subscription in out
assert 'Message 1' in out