sdks/python/apache_beam/examples/complete/top_wikipedia_sessions_test.py

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"""Test for the top wikipedia sessions example."""

from __future__ import absolute_import

import json
import unittest

import apache_beam as beam
from apache_beam.examples.complete import top_wikipedia_sessions
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 ComputeTopSessionsTest(unittest.TestCase):

  EDITS = [
      json.dumps({'timestamp': 0.0, 'contributor_username': 'user1'}),
      json.dumps({'timestamp': 0.001, 'contributor_username': 'user1'}),
      json.dumps({'timestamp': 0.002, 'contributor_username': 'user1'}),
      json.dumps({'timestamp': 0.0, 'contributor_username': 'user2'}),
      json.dumps({'timestamp': 0.001, 'contributor_username': 'user2'}),
      json.dumps({'timestamp': 3.601, 'contributor_username': 'user2'}),
      json.dumps({'timestamp': 3.602, 'contributor_username': 'user2'}),
      json.dumps(
          {'timestamp': 2 * 3600.0, 'contributor_username': 'user2'}),
      json.dumps(
          {'timestamp': 35 * 24 * 3.600, 'contributor_username': 'user3'})
  ]

  EXPECTED = [
      'user1 : [0.0, 3600.002) : 3 : [0.0, 2592000.0)',
      'user2 : [0.0, 3603.602) : 4 : [0.0, 2592000.0)',
      'user2 : [7200.0, 10800.0) : 1 : [0.0, 2592000.0)',
      'user3 : [3024.0, 6624.0) : 1 : [0.0, 2592000.0)',
  ]

  def test_compute_top_sessions(self):
    with TestPipeline() as p:
      edits = p | beam.Create(self.EDITS)
      result = edits | top_wikipedia_sessions.ComputeTopSessions(1.0)

      assert_that(result, equal_to(self.EXPECTED))


if __name__ == '__main__':
  unittest.main()