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"""
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2
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Testing key methods from Parameter Handling class
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3
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"""
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4
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from datetime import datetime
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5
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import os
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6
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from db_extractor.FileOperations import FileOperations
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7
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from db_extractor.ParameterHandling import ParameterHandling
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8
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from db_extractor.ExtractNeeds import ExtractNeeds
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9
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import unittest
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10
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11
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12
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class TestParameterHandling(unittest.TestCase):
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13
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14
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def test_interpret_known_expression(self):
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15
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class_fo = FileOperations()
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16
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class_en = ExtractNeeds(os.path.basename(__file__).replace('.py', ''))
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17
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# load testing values from JSON file
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18
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# where all cases are grouped
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19
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json_structure = class_fo.fn_open_file_and_get_content(
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20
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os.path.join(os.path.dirname(__file__), 'expressions.json'))
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21
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# flatten out all testing values
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pair_values = []
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for crt_list in json_structure.values():
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pair_values += crt_list
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# parse through all pair of values and run the test
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class_ph = ParameterHandling()
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for current_pair in pair_values:
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28
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reference_format = '%Y-%m-%d'
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29
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if 'reference_format' in current_pair:
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30
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reference_format = current_pair['reference_format']
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31
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reference_date = datetime.strptime(current_pair['reference_value'], reference_format)
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32
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expression_parts = current_pair['expression'].split('_')
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33
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current_pair['start-iso-weekday'] = class_ph.set_default_starting_weekday({
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'session': current_pair,
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35
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'query': current_pair,
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36
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'sequence': current_pair,
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37
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})
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38
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value_to_assert = class_ph.interpret_known_expression(
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39
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reference_date, expression_parts, current_pair['start-iso-weekday'])
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40
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self.assertEqual(value_to_assert, current_pair['expected_value'],
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'Provided value was "' + current_pair['reference_value']
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+ '", Expression was "' + current_pair['expression'] + '" '
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+ '", Expected was "' + current_pair['expected_value'] + '" '
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+ 'but received was "' + value_to_assert + '"...')
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45
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46
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47
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if __name__ == '__main__':
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48
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unittest.main()
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49
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50
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danielgp /
db-extractor
