# coding=utf-8
#
# 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
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#    http://www.apache.org/licenses/LICENSE-2.0
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from __future__ import absolute_import
from __future__ import print_function

import unittest

import mock

from apache_beam.examples.snippets.transforms.element_wise.keys import *
from apache_beam.testing.test_pipeline import TestPipeline
from apache_beam.testing.util import assert_that
from apache_beam.testing.util import equal_to


@mock.patch('apache_beam.Pipeline', TestPipeline)
# pylint: disable=line-too-long
@mock.patch('apache_beam.examples.snippets.transforms.element_wise.keys.print', lambda elem: elem)
# pylint: enable=line-too-long
class KeysTest(unittest.TestCase):
  def __init__(self, methodName):
    super(KeysTest, self).__init__(methodName)
    # [START icons]
    icons = [
        '🍓',
        '🥕',
        '🍆',
        '🍅',
        '🥔',
    ]
    # [END icons]
    self.icons_test = lambda actual: assert_that(actual, equal_to(icons))

  def test_keys(self):
    keys(self.icons_test)


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