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https://issues.apache.org/jira/browse/BEAM-3377?focusedWorklogId=103421&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-103421
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ASF GitHub Bot logged work on BEAM-3377:
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Author: ASF GitHub Bot
Created on: 18/May/18 16:40
Start Date: 18/May/18 16:40
Worklog Time Spent: 10m
Work Description: aaltay commented on issue #5384: [BEAM-3377] Add
validation for streaming wordcount with assert_that
URL: https://github.com/apache/beam/pull/5384#issuecomment-390264151
LGTM. Could you squash your changes? I can also do this if you prefer that.
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Issue Time Tracking
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Worklog Id: (was: 103421)
Time Spent: 5.5h (was: 5h 20m)
> assert_that not working for streaming
> -------------------------------------
>
> Key: BEAM-3377
> URL: https://issues.apache.org/jira/browse/BEAM-3377
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Affects Versions: 2.2.0
> Reporter: María GH
> Priority: Major
> Labels: starter
> Time Spent: 5.5h
> Remaining Estimate: 0h
>
> assert_that does not work for AfterWatermark timers.
> Easy way to reproduce: modify test_gbk_execution [1] in this form:
>
> {code:java}
> def test_this(self):
> test_stream = (TestStream()
> .add_elements(['a', 'b', 'c'])
> .advance_watermark_to(20))
> def fnc(x):
> print 'fired_elem:', x
> return x
> options = PipelineOptions()
> options.view_as(StandardOptions).streaming = True
> p = TestPipeline(options=options)
> records = (p
> | test_stream
> | beam.WindowInto(
> FixedWindows(15),
>
> trigger=trigger.AfterWatermark(early=trigger.AfterCount(2)),
> accumulation_mode=trigger.AccumulationMode.ACCUMULATING)
> | beam.Map(lambda x: ('k', x))
> | beam.GroupByKey())
> assert_that(records, equal_to([
> ('k', ['a', 'b', 'c'])]))
> p.run()
> {code}
> This test will pass, but if the .advance_watermark_to(20) is removed, the
> test will fail. However, both cases fire the same elements:
> fired_elem: ('k', ['a', 'b', 'c'])
> fired_elem: ('k', ['a', 'b', 'c'])
> In the passing case, they correspond to the sorted_actual inside the
> assert_that. In the failing case:
> sorted_actual: [('k', ['a', 'b', 'c']), ('k', ['a', 'b', 'c'])]
> sorted_actual: []
> [1]
> https://github.com/mariapython/incubator-beam/blob/direct-timers-show/sdks/python/apache_beam/testing/test_stream_test.py#L120
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