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https://issues.apache.org/jira/browse/BEAM-3861?focusedWorklogId=83393&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-83393
]
ASF GitHub Bot logged work on BEAM-3861:
----------------------------------------
Author: ASF GitHub Bot
Created on: 23/Mar/18 00:01
Start Date: 23/Mar/18 00:01
Worklog Time Spent: 10m
Work Description: markflyhigh commented on a change in pull request
#4930: [BEAM-3861] Complete streaming wordcount test in Python SDK
URL: https://github.com/apache/beam/pull/4930#discussion_r176607403
##########
File path: sdks/python/apache_beam/io/gcp/tests/pubsub_matcher.py
##########
@@ -0,0 +1,108 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
+"""PubSub verifier used for end-to-end test."""
+
+import logging
+import time
+from collections import Counter
+
+from hamcrest.core.base_matcher import BaseMatcher
+
+__all__ = ['PubSubMessageMatcher']
+
+
+# Protect against environments where pubsub library is not available.
+# pylint: disable=wrong-import-order, wrong-import-position
+try:
+ from google.cloud import pubsub
+except ImportError:
+ pubsub = None
+# pylint: enable=wrong-import-order, wrong-import-position
+
+DEFAULT_TIMEOUT = 5 * 60
+MAX_MESSAGES_IN_ONE_PULL = 50
+
+
+class PubSubMessageMatcher(BaseMatcher):
+ """Matcher that verifies messages from given subscription.
+
+ This matcher can block the test and keep pulling messages from given
+ subscription until all expected messages are shown or timeout.
+ """
+
+ def __init__(self, project, sub_name, expected_msg, timeout=DEFAULT_TIMEOUT):
+ """Initialize PubSubMessageMatcher object.
+
+ Args:
+ project: A name string of project.
+ sub_name: A name string of subscription which is attached to output.
+ expected_msg: A string list that contains expected message data pulled
+ from the subscription.
+ timeout: Timeout in seconds to wait for all expected messages appears.
+ """
+ if pubsub is None:
+ raise ImportError(
+ 'PubSub dependencies are not installed.')
+ if not project:
+ raise ValueError('Invalid project %s.' % project)
+ if not sub_name:
+ raise ValueError('Invalid subscription %s.' % sub_name)
+ if not expected_msg or not isinstance(expected_msg, list):
+ raise ValueError('Invalid expected messages %s.' % expected_msg)
+
+ self.project = project
+ self.sub_name = sub_name
+ self.expected_msg = expected_msg
+ self.timeout = timeout
+ self.messages = None
+
+ def _matches(self, _):
+ if not self.messages:
+ subscription = (pubsub
+ .Client(project=self.project)
+ .subscription(self.sub_name))
+ self.messages = self._wait_for_messages(subscription,
Review comment:
done.
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Issue Time Tracking
-------------------
Worklog Id: (was: 83393)
Time Spent: 6h 50m (was: 6h 40m)
> Build test infra for end-to-end streaming test in Python SDK
> ------------------------------------------------------------
>
> Key: BEAM-3861
> URL: https://issues.apache.org/jira/browse/BEAM-3861
> Project: Beam
> Issue Type: Task
> Components: testing
> Reporter: Mark Liu
> Assignee: Mark Liu
> Priority: Major
> Time Spent: 6h 50m
> Remaining Estimate: 0h
>
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