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utils_test.py
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103 lines (94 loc) · 3.45 KB
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#
# 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.
#
# pytype: skip-file
import unittest
import apache_beam as beam
from apache_beam.io.filesystem import FileMetadata
from apache_beam.ml.inference import utils
from apache_beam.testing.test_pipeline import TestPipeline
from apache_beam.testing.util import assert_that
from apache_beam.testing.util import equal_to
class WatchFilePatternTest(unittest.TestCase):
def test_latest_file_by_timestamp_default_value(self):
# match continuously returns the files in sorted timestamp order.
main_input_pcoll = [
FileMetadata(
'path1.py',
10,
last_updated_in_seconds=utils._START_TIME_STAMP - 20),
FileMetadata(
'path2.py',
10,
last_updated_in_seconds=utils._START_TIME_STAMP - 10)
]
with TestPipeline() as p:
files_pc = (
p
| beam.Create(main_input_pcoll)
| beam.Map(lambda x: (x.path, x))
| beam.ParDo(utils._GetLatestFileByTimeStamp())
| beam.Map(lambda x: x[0]))
assert_that(files_pc, equal_to(['', '']))
def test_latest_file_with_timestamp_after_pipeline_construction_time(self):
main_input_pcoll = [
FileMetadata(
'path1.py',
10,
last_updated_in_seconds=utils._START_TIME_STAMP + 10)
]
with TestPipeline() as p:
files_pc = (
p
| beam.Create(main_input_pcoll)
| beam.Map(lambda x: (x.path, x))
| beam.ParDo(utils._GetLatestFileByTimeStamp())
| beam.Map(lambda x: x[0]))
assert_that(files_pc, equal_to(['path1.py']))
def test_emitting_singleton_output(self):
# match continuously returns the files in sorted timestamp order.
main_input_pcoll = [
FileMetadata(
'path1.py',
10,
last_updated_in_seconds=utils._START_TIME_STAMP - 20),
# returns default
FileMetadata(
'path2.py',
10,
last_updated_in_seconds=utils._START_TIME_STAMP - 10),
# returns default
FileMetadata(
'path3.py',
10,
last_updated_in_seconds=utils._START_TIME_STAMP + 10),
FileMetadata(
'path4.py',
10,
last_updated_in_seconds=utils._START_TIME_STAMP + 20)
]
# returns path3.py
with TestPipeline() as p:
files_pc = (
p
| beam.Create(main_input_pcoll)
| beam.Map(lambda x: (x.path, x))
| beam.ParDo(utils._GetLatestFileByTimeStamp())
| beam.ParDo(utils._ConvertIterToSingleton())
| beam.Map(lambda x: x[0]))
assert_that(files_pc, equal_to(['', 'path3.py', 'path4.py']))
if __name__ == '__main__':
unittest.main()