def test_create_do_avro_write(self): output_path = self.create_temp_file('n/a') elements = ['abc', 'def', 'ghi'] work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead( inmemory.InMemorySource( elements=[pickler.dumps(e) for e in elements], start_index=2, # Start at the last element. end_index=3), output_coders=[self.OUTPUT_CODER]), maptask.WorkerDoFn(serialized_fn=pickle_with_side_inputs( ptransform.CallableWrapperDoFn(lambda x: ['XYZ: %s' % x])), output_tags=['out'], input=(0, 0), side_inputs=None, output_coders=[self.OUTPUT_CODER]), make_text_sink(output_path, input=(1, 0), coder=coders.Base64PickleCoder()) ]) executor.MapTaskExecutor(work_item.map_task).execute() with open(output_path) as f: self.assertEqual('XYZ: ghi', pickler.loads(f.read().strip()))
def test_create_do_with_side_in_memory_write(self): elements = ['abc', 'def', 'ghi'] side_elements = ['x', 'y', 'z'] output_buffer = [] work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(inmemory.InMemorySource( elements=[pickler.dumps(e) for e in elements], start_index=0, end_index=3), output_coders=[self.OUTPUT_CODER]), maptask.WorkerDoFn( serialized_fn=pickle_with_side_inputs( ptransform.CallableWrapperDoFn( lambda x, side: ['%s:%s' % (x, side)]), tag_and_type=('inmemory', pvalue.SingletonPCollectionView, (False, None))), output_tags=['out'], input=(0, 0), side_inputs=[ maptask.WorkerSideInputSource(inmemory.InMemorySource( elements=[pickler.dumps(e) for e in side_elements], start_index=None, end_index=None), tag='inmemory') ], output_coders=[self.OUTPUT_CODER]), maptask.WorkerInMemoryWrite(output_buffer=output_buffer, input=(1, 0), output_coders=(self.OUTPUT_CODER, )) ]) executor.MapTaskExecutor(work_item.map_task).execute() # The side source was specified as singleton therefore we should see # only the first element appended. self.assertEqual(['abc:x', 'def:x', 'ghi:x'], output_buffer)
def test_shuffle_read_do_write(self): output_path = self.create_temp_file('n/a') work_spec = [ maptask.WorkerGroupingShuffleRead( shuffle_reader_config='none', start_shuffle_position='aaa', end_shuffle_position='zzz', coder=self.SHUFFLE_CODER, output_coders=[self.SHUFFLE_CODER]), maptask.WorkerDoFn(serialized_fn=pickle_with_side_inputs( ptransform.CallableWrapperDoFn( lambda (k, vs): [str((k, v)) for v in vs])), output_tags=['out'], output_coders=[self.OUTPUT_CODER], input=(0, 0), side_inputs=None), make_text_sink(output_path, input=(1, 0)) ] shuffle_source_mock = mock.MagicMock() shuffle_source_mock.reader().__enter__().__iter__.return_value = [ (10, [1, 2]), (20, [3]) ] work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task(work_spec) executor.MapTaskExecutor( work_item.map_task, test_shuffle_source=shuffle_source_mock).execute() with open(output_path) as f: self.assertEqual('(10, 1)\n(10, 2)\n(20, 3)\n', f.read())
def test_read_do_shuffle_write(self): input_path = self.create_temp_file('a\nb\nc\nd\n') work_spec = [ maptask.WorkerRead(fileio.TextFileSource( file_path=input_path, start_offset=0, end_offset=8, strip_trailing_newlines=True, coder=coders.StrUtf8Coder()), output_coders=[self.OUTPUT_CODER]), maptask.WorkerDoFn(serialized_fn=pickle_with_side_inputs( ptransform.CallableWrapperDoFn(lambda x: [(x, 1)])), output_tags=['out'], output_coders=[self.OUTPUT_CODER], input=(0, 0), side_inputs=None), maptask.WorkerShuffleWrite(shuffle_kind='group_keys', shuffle_writer_config='none', input=(1, 0), output_coders=(self.SHUFFLE_CODER, )) ] shuffle_sink_mock = mock.MagicMock() work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task(work_spec) executor.MapTaskExecutor( work_item.map_task, test_shuffle_sink=shuffle_sink_mock).execute() # Make sure we have seen all the (k, v) writes. shuffle_sink_mock.writer().Write.assert_has_calls([ mock.call('a', '', 1), mock.call('b', '', 1), mock.call('c', '', 1), mock.call('d', '', 1) ])
def test_read_do_write_with_start_bundle(self): input_path = self.create_temp_file('01234567890123456789\n0123456789') output_path = '%s.out' % input_path finish_path = '%s.finish' % input_path work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(fileio.TextFileSource( file_path=input_path, start_offset=0, end_offset=15, strip_trailing_newlines=True, coder=coders.StrUtf8Coder()), output_coders=[self.OUTPUT_CODER]), maptask.WorkerDoFn(serialized_fn=pickle_with_side_inputs( DoFnUsingStartBundle(finish_path)), output_tags=['out'], output_coders=[self.OUTPUT_CODER], input=(0, 0), side_inputs=None), make_text_sink(output_path, input=(1, 0)) ]) executor.MapTaskExecutor(work_item.map_task).execute() with open(output_path) as f: self.assertEqual('XYZ: 01234567890123456789\n', f.read()) # Check that the finish_bundle method of the custom DoFn object left the # expected side-effect by writing a file with a specific content. with open(finish_path) as f: self.assertEqual('finish called.', f.read())
def test_read_do_write(self): input_path = self.create_temp_file('01234567890123456789\n0123456789') output_path = '%s.out' % input_path work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(fileio.TextFileSource( file_path=input_path, start_offset=0, end_offset=15, strip_trailing_newlines=True, coder=coders.StrUtf8Coder()), output_coders=[self.OUTPUT_CODER]), maptask.WorkerDoFn(serialized_fn=pickle_with_side_inputs( ptransform.CallableWrapperDoFn(lambda x: ['XYZ: %s' % x])), output_tags=['out'], output_coders=[self.OUTPUT_CODER], input=(0, 0), side_inputs=None), make_text_sink(output_path, input=(1, 0)) ]) executor.MapTaskExecutor(work_item.map_task).execute() with open(output_path) as f: self.assertEqual('XYZ: 01234567890123456789\n', f.read())
def test_create_do_with_collection_side_bigquery_write(self): elements = ['aa', 'bb'] side_elements = ['x', 'y'] output_buffer = [] patch_target = 'google.cloud.dataflow.io.bigquery.BigQueryReader' with mock.patch(target=patch_target) as mock_class: # Setup the reader so it will yield the values in 'side_elements'. reader_mock = mock_class.return_value reader_mock.__enter__.return_value = reader_mock # Use a lambda so that multiple readers can be created, each reading the # entirety of the side elements. reader_mock.__iter__.side_effect = lambda: (x for x in side_elements) work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(inmemory.InMemorySource( elements=[pickler.dumps(e) for e in elements], start_index=0, end_index=3), output_coders=[self.OUTPUT_CODER]), maptask.WorkerDoFn( serialized_fn=pickle_with_side_inputs( ptransform.CallableWrapperDoFn( lambda x, side: ['%s:%s' % (x, s) for s in side]), tag_and_type=('bigquery', pvalue.IterablePCollectionView, ())), output_tags=['out'], input=(0, 0), side_inputs=[ maptask.WorkerSideInputSource(bigquery.BigQuerySource( project='project', dataset='dataset', table='table', coder=get_bigquery_source_coder()), tag='bigquery') ], output_coders=[self.OUTPUT_CODER]), maptask.WorkerInMemoryWrite( output_buffer=output_buffer, input=(1, 0), output_coders=(self.OUTPUT_CODER, )) ]) executor.MapTaskExecutor(work_item.map_task).execute() # The side source was specified as collection therefore we should see # all elements of the side source. self.assertEqual(['aa:x', 'aa:y', 'bb:x', 'bb:y'], sorted(output_buffer))
def test_in_memory_source_progress_reporting(self): elements = [101, 201, 301, 401, 501, 601, 701] output_buffer = [] source = ProgressRequestRecordingInMemorySource( elements=[pickler.dumps(e) for e in elements]) work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(source, output_coders=[self.OUTPUT_CODER]), maptask.WorkerInMemoryWrite(output_buffer=output_buffer, input=(0, 0), output_coders=(self.OUTPUT_CODER, )) ]) executor.MapTaskExecutor(work_item.map_task).execute() self.assertEqual(elements, output_buffer) expected_progress_record = range(len(elements)) self.assertEqual(expected_progress_record, source.last_reader.progress_record)
def test_create_do_with_side_avro_file_write(self): input_path1 = self.create_temp_file('%s\n' % pickler.dumps('x')) input_path2 = self.create_temp_file('%s\n' % pickler.dumps('y')) elements = ['aa', 'bb'] output_buffer = [] work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(inmemory.InMemorySource( elements=[pickler.dumps(e) for e in elements], start_index=0, end_index=2), output_coders=[self.OUTPUT_CODER]), maptask.WorkerDoFn( serialized_fn=pickle_with_side_inputs( ptransform.CallableWrapperDoFn( lambda x, side: ['%s:%s' % (x, s) for s in side]), tag_and_type=('sometag', pvalue.IterablePCollectionView, ())), output_tags=['out'], input=(0, 0), # Note that the two side inputs have the same tag. This is quite # common for intermediary PCollections used as side inputs that # are saved as AVRO files. The files will contain the sharded # PCollection. side_inputs=[ maptask.WorkerSideInputSource(fileio.TextFileSource( file_path=input_path1, coder=coders.Base64PickleCoder()), tag='sometag'), maptask.WorkerSideInputSource(fileio.TextFileSource( file_path=input_path2, coder=coders.Base64PickleCoder()), tag='sometag') ], output_coders=[self.OUTPUT_CODER]), maptask.WorkerInMemoryWrite(output_buffer=output_buffer, input=(1, 0), output_coders=(self.OUTPUT_CODER, )) ]) executor.MapTaskExecutor(work_item.map_task).execute() # The side source was specified as collection therefore we should see # all three elements of the side source. self.assertEqual([u'aa:x', u'aa:y', u'bb:x', u'bb:y'], sorted(output_buffer))
def test_progress_reporter_reports_progress(self, mock_report_response, mock_next_progress): # pylint: disable=unused-argument work_item = workitem.BatchWorkItem(proto=mock.MagicMock(), map_task=mock.MagicMock()) mock_work_executor = mock.MagicMock() mock_batch_worker = mock.MagicMock() mock_client = mock.MagicMock() mock_next_progress.return_value = 1 progress_reporter = batchworker.ProgressReporter( work_item, mock_work_executor, mock_batch_worker, mock_client) progress_reporter.start_reporting_progress() time.sleep(10) progress_reporter.stop_reporting_progress() mock_client.report_status.assert_called_with(mock.ANY, mock.ANY, mock.ANY, mock.ANY, mock.ANY, mock.ANY, mock.ANY)
def test_pgbk(self): elements = [('a', 1), ('b', 2), ('a', 3), ('a', 4)] output_buffer = [] work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(inmemory.InMemorySource( elements=[pickler.dumps(e) for e in elements], start_index=0, end_index=100), output_coders=[self.OUTPUT_CODER]), maptask.WorkerPartialGroupByKey(combine_fn=None, input=(0, 0), output_coders=[self.OUTPUT_CODER]), maptask.WorkerInMemoryWrite(output_buffer=output_buffer, input=(1, 0), output_coders=(self.OUTPUT_CODER, )) ]) executor.MapTaskExecutor(work_item.map_task).execute() self.assertEqual([('a', [1, 3, 4]), ('b', [2])], sorted(output_buffer))
def test_combine(self): elements = [('a', [1, 2, 3]), ('b', [10])] output_buffer = [] work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(inmemory.InMemorySource( elements=[pickler.dumps(e) for e in elements], start_index=0, end_index=100), output_coders=[self.OUTPUT_CODER]), maptask.WorkerCombineFn(serialized_fn=pickle_with_side_inputs( ptransform.CombineFn.from_callable(sum)), phase='all', input=(0, 0), output_coders=[self.OUTPUT_CODER]), maptask.WorkerInMemoryWrite(output_buffer=output_buffer, input=(1, 0), output_coders=(self.OUTPUT_CODER, )) ]) executor.MapTaskExecutor(work_item.map_task).execute() self.assertEqual([('a', 6), ('b', 10)], output_buffer)
def test_ungrouped_shuffle_read_and_write(self): output_path = self.create_temp_file('n/a') work_spec = [ maptask.WorkerUngroupedShuffleRead( shuffle_reader_config='none', start_shuffle_position='aaa', end_shuffle_position='zzz', coder=self.SHUFFLE_CODER, output_coders=[self.SHUFFLE_CODER]), make_text_sink(output_path, input=(0, 0)) ] shuffle_source_mock = mock.MagicMock() shuffle_source_mock.reader().__enter__().__iter__.return_value = [ 1, 2, 3 ] work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task(work_spec) executor.MapTaskExecutor( work_item.map_task, test_shuffle_source=shuffle_source_mock).execute() with open(output_path) as f: self.assertEqual('1\n2\n3\n', f.read())
def test_create_do_with_side_text_file_write(self): input_path = self.create_temp_file('x\ny\n') elements = ['aa', 'bb'] output_buffer = [] work_item = workitem.BatchWorkItem(None) work_item.map_task = make_map_task([ maptask.WorkerRead(inmemory.InMemorySource( elements=[pickler.dumps(e) for e in elements], start_index=0, end_index=2), output_coders=[self.OUTPUT_CODER]), maptask.WorkerDoFn(serialized_fn=pickle_with_side_inputs( ptransform.CallableWrapperDoFn( lambda x, side: ['%s:%s' % (x, s) for s in side]), tag_and_type=('textfile', pvalue.IterablePCollectionView, ())), output_tags=['out'], input=(0, 0), side_inputs=[ maptask.WorkerSideInputSource( fileio.TextFileSource( file_path=input_path, start_offset=None, end_offset=None, strip_trailing_newlines=True, coder=coders.StrUtf8Coder()), tag='textfile') ], output_coders=[self.OUTPUT_CODER]), maptask.WorkerInMemoryWrite(output_buffer=output_buffer, input=(1, 0), output_coders=(self.OUTPUT_CODER, )) ]) executor.MapTaskExecutor(work_item.map_task).execute() # The side source was specified as collection therefore we should see # all elements of the side source. self.assertEqual([u'aa:x', u'aa:y', u'bb:x', u'bb:y'], sorted(output_buffer))