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#   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,
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#   See the License for the specific language governing permissions and
#   limitations under the License.

from test_helper import failed, passed, \
    get_answer_placeholders, get_file_output, test_is_not_empty, \
    test_answer_placeholders_text_deleted


def test_filter():
    placeholders = get_answer_placeholders()
    placeholder = placeholders[0]

    if 'beam.Filter' in placeholder:
        passed()
    else:
        failed('Use beam.Filter')


def test_output():
    output = get_file_output()

    answers = ['2', '4', '6', '8', '10']

    if all(num in output for num in answers):
        passed()
    else:
        failed("Incorrect output. Filter out the odd numbers.")


if __name__ == '__main__':
    test_is_not_empty()
    test_answer_placeholders_text_deleted()
    test_filter()
    test_output()