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1
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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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from sources.common.FileOperations import FileOperations
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6
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from sources.db_extractor.ParameterHandling import ParameterHandling
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7
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import unittest
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8
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9
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10
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class TestParameterHandling(unittest.TestCase):
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11
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12
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def test_interpret_known_expression(self):
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13
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fo = FileOperations()
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14
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# load testing values from JSON file
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15
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# where all cases are grouped
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16
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json_structure = fo.fn_open_file_and_get_content('expressions.json')
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17
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# flatten out all testing values
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18
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pair_values = []
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19
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index_counter = 0
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20
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for current_expression_group in json_structure.items():
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21
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for current_expression in current_expression_group[1]:
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22
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pair_values.append(index_counter)
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23
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pair_values[index_counter] = current_expression
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index_counter += 1
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25
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# parse through all pair of values and run the test
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26
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ph = ParameterHandling()
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27
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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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value_to_assert = ph.interpret_known_expression(reference_date, expression_parts, 1)
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34
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self.assertEqual(value_to_assert, current_pair['expected_value'],
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35
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'Provided value was "' + current_pair['reference_value']
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36
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+ '", Expression was "' + current_pair['expression'] + '" '
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37
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+ '", Expected was "' + current_pair['expected_value'] + '" '
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38
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+ 'but received was "' + value_to_assert + '"...')
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39
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40
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41
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if __name__ == '__main__':
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42
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unittest.main()
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43
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44
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danielgp /
db-extractor
