| # |
| # 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.options.pipeline_options import PipelineOptions |
| from apache_beam.runners.common import DoFnSignature |
| from apache_beam.testing.test_pipeline import TestPipeline |
| from apache_beam.testing.test_stream import TestStream |
| from apache_beam.transforms import trigger |
| from apache_beam.transforms import window |
| from apache_beam.transforms.core import DoFn |
| |
| |
| class DoFnSignatureTest(unittest.TestCase): |
| |
| def test_dofn_validate_process_error(self): |
| class MyDoFn(DoFn): |
| def process(self, element, w1=DoFn.WindowParam, w2=DoFn.WindowParam): |
| pass |
| |
| with self.assertRaises(ValueError): |
| DoFnSignature(MyDoFn()) |
| |
| def test_dofn_validate_start_bundle_error(self): |
| class MyDoFn(DoFn): |
| def process(self, element): |
| pass |
| |
| def start_bundle(self, w1=DoFn.WindowParam): |
| pass |
| |
| with self.assertRaises(ValueError): |
| DoFnSignature(MyDoFn()) |
| |
| def test_dofn_validate_finish_bundle_error(self): |
| class MyDoFn(DoFn): |
| def process(self, element): |
| pass |
| |
| def finish_bundle(self, w1=DoFn.WindowParam): |
| pass |
| |
| with self.assertRaises(ValueError): |
| DoFnSignature(MyDoFn()) |
| |
| |
| class DoFnProcessTest(unittest.TestCase): |
| # pylint: disable=expression-not-assigned |
| all_records = None |
| |
| def setUp(self): |
| DoFnProcessTest.all_records = [] |
| |
| def record_dofn(self): |
| class RecordDoFn(DoFn): |
| def process(self, element): |
| DoFnProcessTest.all_records.append(element) |
| |
| return RecordDoFn() |
| |
| def test_dofn_process_keyparam(self): |
| |
| class DoFnProcessWithKeyparam(DoFn): |
| |
| def process(self, element, mykey=DoFn.KeyParam): |
| yield "{key}-verify".format(key=mykey) |
| |
| pipeline_options = PipelineOptions() |
| |
| with TestPipeline(options=pipeline_options) as p: |
| test_stream = (TestStream().advance_watermark_to(10).add_elements([1, 2])) |
| (p |
| | test_stream |
| | beam.Map(lambda x: (x, "some-value")) |
| | "window_into" >> beam.WindowInto( |
| window.FixedWindows(5), |
| accumulation_mode=trigger.AccumulationMode.DISCARDING) |
| | beam.ParDo(DoFnProcessWithKeyparam()) |
| | beam.ParDo(self.record_dofn())) |
| |
| self.assertEqual( |
| ['1-verify', '2-verify'], |
| sorted(DoFnProcessTest.all_records)) |
| |
| def test_dofn_process_keyparam_error_no_key(self): |
| class DoFnProcessWithKeyparam(DoFn): |
| |
| def process(self, element, mykey=DoFn.KeyParam): |
| yield "{key}-verify".format(key=mykey) |
| |
| pipeline_options = PipelineOptions() |
| with self.assertRaises(ValueError),\ |
| TestPipeline(options=pipeline_options) as p: |
| test_stream = (TestStream().advance_watermark_to(10).add_elements([1, 2])) |
| (p |
| | test_stream |
| | beam.ParDo(DoFnProcessWithKeyparam())) |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |