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https://issues.apache.org/jira/browse/BEAM-8335?focusedWorklogId=344718&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-344718
]
ASF GitHub Bot logged work on BEAM-8335:
----------------------------------------
Author: ASF GitHub Bot
Created on: 16/Nov/19 00:26
Start Date: 16/Nov/19 00:26
Worklog Time Spent: 10m
Work Description: pabloem commented on pull request #9953: DO NOT MERGE
[BEAM-8335] Adds support for multi-output TestStream
URL: https://github.com/apache/beam/pull/9953#discussion_r347054898
##########
File path: sdks/python/apache_beam/testing/test_stream_test.py
##########
@@ -127,6 +127,118 @@ def process(self, element=beam.DoFn.ElementParam,
p.run()
+ def test_multiple_outputs(self):
+ """Tests that the TestStream supports emitting to multiple PCollections."""
+ test_stream = (TestStream()
+ .advance_watermark_to(5, tag='letters')
+ .add_elements(['a', 'b', 'c'], tag='letters')
+ .advance_watermark_to(10, tag='numbers')
+ .add_elements(['1', '2', '3'], tag='numbers'))
+
+ class RecordFn(beam.DoFn):
+ def process(self, element=beam.DoFn.ElementParam,
+ timestamp=beam.DoFn.TimestampParam):
+ yield (element, timestamp)
+
+ options = StandardOptions(streaming=True)
+ p = TestPipeline(options=options)
+
+ main = p | test_stream
+ letters = main['letters'] | 'record letters' >> beam.ParDo(RecordFn())
+ numbers = main['numbers'] | 'record numbers' >> beam.ParDo(RecordFn())
+
+ assert_that(letters, equal_to([
+ ('a', Timestamp(5)),
+ ('b', Timestamp(5)),
+ ('c', Timestamp(5))]), label='assert letters')
+
+ assert_that(numbers, equal_to([
+ ('1', Timestamp(10)),
+ ('2', Timestamp(10)),
+ ('3', Timestamp(10))]), label='assert numbers')
+
+ p.run()
+
+ def test_multiple_outputs_with_watermark_advancement(self):
+ """Tests that the TestStream can independently control output
watermarks."""
+
+ # Purposely set the watermark of numbers to 20 then letters to 5 to test
+ # that the watermark advancement is per PCollection.
+ #
+ # This creates two PCollections, (a, b, c) and (1, 2, 3). These will be
+ # emitted at different times so that they will have different windows. The
+ # watermark advancement is checked by checking their windows. If the
+ # watermark does not advance, then the windows will be [-inf, -inf). If the
+ # windows do not advance separately, then the PCollections will both
+ # windowed in [15, 30).
+ test_stream = (TestStream()
Review comment:
Maybe add TimestampedValues with timestamps different from the watermark, to
check that the runner does not override that?
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Issue Time Tracking
-------------------
Worklog Id: (was: 344718)
Time Spent: 30.5h (was: 30h 20m)
> Add streaming support to Interactive Beam
> -----------------------------------------
>
> Key: BEAM-8335
> URL: https://issues.apache.org/jira/browse/BEAM-8335
> Project: Beam
> Issue Type: Improvement
> Components: runner-py-interactive
> Reporter: Sam Rohde
> Assignee: Sam Rohde
> Priority: Major
> Time Spent: 30.5h
> Remaining Estimate: 0h
>
> This issue tracks the work items to introduce streaming support to the
> Interactive Beam experience. This will allow users to:
> * Write and run a streaming job in IPython
> * Automatically cache records from unbounded sources
> * Add a replay experience that replays all cached records to simulate the
> original pipeline execution
> * Add controls to play/pause/stop/step individual elements from the cached
> records
> * Add ability to inspect/visualize unbounded PCollections
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