rohdesamuel commented on a change in pull request #13277: URL: https://github.com/apache/beam/pull/13277#discussion_r521758667
########## File path: sdks/python/apache_beam/runners/interactive/user_pipeline_tracker_test.py ########## @@ -0,0 +1,181 @@ +# +# 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. +# + +from __future__ import absolute_import + +import unittest + +import apache_beam as beam +from apache_beam.runners.interactive.user_pipeline_tracker import UserPipelineTracker + + +class UserPipelineTrackerTest(unittest.TestCase): + def test_getting_unknown_pid_returns_none(self): + ut = UserPipelineTracker() + + p = beam.Pipeline() + + self.assertIsNone(ut.get_pipeline(str(id(p)))) + + def test_getting_unknown_pipeline_returns_none(self): + ut = UserPipelineTracker() + + p = beam.Pipeline() + + self.assertIsNone(ut.get_user_pipeline(p)) + + def test_no_parent_returns_none(self): + ut = UserPipelineTracker() + + user = beam.Pipeline() + derived = beam.Pipeline() + orphan = beam.Pipeline() + + ut.add_derived_pipeline(user, derived) + + self.assertIsNone(ut.get_user_pipeline(orphan)) + + def test_get_user_pipeline_is_same(self): + ut = UserPipelineTracker() + + p = beam.Pipeline() + ut.add_user_pipeline(p) + + self.assertIs(ut.get_user_pipeline(p), p) + + def test_can_add_derived(self): + ut = UserPipelineTracker() + + user = beam.Pipeline() + derived = beam.Pipeline() + + ut.add_derived_pipeline(user, derived) + + self.assertIs(ut.get_user_pipeline(derived), user) + + def test_can_add_multiple_derived(self): + """Tests that there can be many user pipelines with many derived + pipelines. + """ + ut = UserPipelineTracker() + + # Add the first set of user and derived pipelines. + user1 = beam.Pipeline() + derived11 = beam.Pipeline() + derived12 = beam.Pipeline() + + ut.add_derived_pipeline(user1, derived11) + ut.add_derived_pipeline(user1, derived12) + + # Add the second set of user and derived pipelines. + user2 = beam.Pipeline() + derived21 = beam.Pipeline() + derived22 = beam.Pipeline() + + ut.add_derived_pipeline(user2, derived21) + ut.add_derived_pipeline(user2, derived22) + + # Assert that the user pipelines are correct. + self.assertIs(ut.get_user_pipeline(derived11), user1) + self.assertIs(ut.get_user_pipeline(derived12), user1) + self.assertIs(ut.get_user_pipeline(derived21), user2) + self.assertIs(ut.get_user_pipeline(derived22), user2) + + def test_cannot_have_multiple_parents(self): + ut = UserPipelineTracker() + + user1 = beam.Pipeline() + user2 = beam.Pipeline() + derived = beam.Pipeline() + + ut.add_derived_pipeline(user1, derived) + ut.add_derived_pipeline(user2, derived) Review comment: Added an exception ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
