| # |
| # 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. |
| # |
| |
| """Test for the filters example.""" |
| |
| from __future__ import absolute_import |
| |
| import logging |
| import unittest |
| |
| import apache_beam as beam |
| from apache_beam.examples.cookbook import filters |
| 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 FiltersTest(unittest.TestCase): |
| # Note that 'removed' should be projected away by the pipeline |
| input_data = [ |
| {'year': 2010, 'month': 1, 'day': 1, 'mean_temp': 3, 'removed': 'a'}, |
| {'year': 2012, 'month': 1, 'day': 2, 'mean_temp': 3, 'removed': 'a'}, |
| {'year': 2011, 'month': 1, 'day': 3, 'mean_temp': 5, 'removed': 'a'}, |
| {'year': 2013, 'month': 2, 'day': 1, 'mean_temp': 3, 'removed': 'a'}, |
| {'year': 2011, 'month': 3, 'day': 3, 'mean_temp': 5, 'removed': 'a'}, |
| ] |
| |
| def _get_result_for_month(self, month): |
| p = TestPipeline() |
| rows = (p | 'create' >> beam.Create(self.input_data)) |
| |
| results = filters.filter_cold_days(rows, month) |
| return results |
| |
| def test_basic(self): |
| """Test that the correct result is returned for a simple dataset.""" |
| results = self._get_result_for_month(1) |
| assert_that( |
| results, |
| equal_to([{'year': 2010, 'month': 1, 'day': 1, 'mean_temp': 3}, |
| {'year': 2012, 'month': 1, 'day': 2, 'mean_temp': 3}])) |
| results.pipeline.run() |
| |
| def test_basic_empty(self): |
| """Test that the correct empty result is returned for a simple dataset.""" |
| results = self._get_result_for_month(3) |
| assert_that(results, equal_to([])) |
| results.pipeline.run() |
| |
| def test_basic_empty_missing(self): |
| """Test that the correct empty result is returned for a missing month.""" |
| results = self._get_result_for_month(4) |
| assert_that(results, equal_to([])) |
| results.pipeline.run() |
| |
| |
| if __name__ == '__main__': |
| logging.getLogger().setLevel(logging.INFO) |
| unittest.main() |