github.com/apache/beam/sdks/v2@v2.48.2/python/apache_beam/examples/cookbook/coders_test.py (about)

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    17  
    18  """Test for the coders example."""
    19  
    20  # pytype: skip-file
    21  
    22  import logging
    23  import unittest
    24  
    25  import apache_beam as beam
    26  from apache_beam.examples.cookbook import coders
    27  from apache_beam.testing.test_pipeline import TestPipeline
    28  from apache_beam.testing.util import assert_that
    29  from apache_beam.testing.util import equal_to
    30  
    31  
    32  class CodersTest(unittest.TestCase):
    33  
    34    SAMPLE_RECORDS = [{
    35        'host': ['Germany', 1], 'guest': ['Italy', 0]
    36    }, {
    37        'host': ['Germany', 1], 'guest': ['Brasil', 3]
    38    }, {
    39        'host': ['Brasil', 1], 'guest': ['Italy', 0]
    40    }]
    41  
    42    EXPECTED_RESULT = [('Italy', 0), ('Brasil', 6), ('Germany', 3)]
    43  
    44    def test_compute_points(self):
    45      with TestPipeline() as p:
    46        records = p | 'create' >> beam.Create(self.SAMPLE_RECORDS)
    47        result = (
    48            records
    49            | 'points' >> beam.FlatMap(coders.compute_points)
    50            | beam.CombinePerKey(sum))
    51        assert_that(result, equal_to(self.EXPECTED_RESULT))
    52  
    53  
    54  if __name__ == '__main__':
    55    logging.getLogger().setLevel(logging.INFO)
    56    unittest.main()