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Add python test to reproduce a failed dofn. #38476

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Add python test to reproduce a failed dofn. #38476

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18 changes: 17 additions & 1 deletion sdks/python/apache_beam/runners/portability/prism_runner_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,6 @@
import os.path
import queue
import shlex
import threading
import time
import typing
import unittest
Expand Down Expand Up @@ -189,6 +188,7 @@ def create_options(self):
options.view_as(StandardOptions).streaming = self.streaming
options.view_as(
TypeOptions).allow_unsafe_triggers = self.allow_unsafe_triggers
options.view_as(PortableOptions).job_server_timeout = 60
return options

# Can't read host files from within docker, read a "local" file there.
Expand Down Expand Up @@ -300,6 +300,22 @@ def test_after_count_trigger_streaming(self):
('B-3', {10, 15, 16}),
])))

def test_dofn_failure_clean_exit(self):
class FailDoFn(beam.DoFn):
def process(self, element):
raise ValueError("Failing as intended")

class BlockDoFn(beam.DoFn):
def process(self, element):
time.sleep(1000)
yield element

with self.assertRaisesRegex(Exception, "Failing as intended"):
with self.create_pipeline() as p:
imp = p | beam.Create([1, 2])
_ = imp | 'Block' >> beam.ParDo(BlockDoFn())
_ = imp | 'Fail' >> beam.ParDo(FailDoFn())


class PrismJobServerTest(unittest.TestCase):
def setUp(self) -> None:
Expand Down
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