def test_getSpanAverageByCode_and_getPercentageDeltaOffSpanAverage(self):
testSymbolData = SymbolData('A')
span_to_test = [1.34, 5.6, -3.5, -0.3, 2.2]
span_expected_average = 1.068
span_even_expected_average = 0.01333
span_odd_expected_average = 2.65
off_average_value_to_test = 1.12
span_code = 'test_span'
testSymbolData.initializeSpanByCode(span_code)
first_expected_none_value = testSymbolData.getSpanAverageByCode(span_code)
self.assertIsNone(first_expected_none_value, 'A None value was not returned when getting the average of a span with no values')
second_expected_none_value = testSymbolData.getPercentageDeltaOffSpanAverage(span_code, off_average_value_to_test)
self.assertIsNone(second_expected_none_value, 'A None value was not returned when getting the percentage delta off average of a span with no values')
unit_label_prefix = 'units_'
i = 0
for value in span_to_test:
unit_label_suffix = 'even' if ((i % 2) == 0) else 'odd'
unit_label = unit_label_prefix + unit_label_suffix
unit_labels_list = [unit_label, i]
testSymbolData.addSpanValueByCode(span_code, unit_labels_list, value)
i += 1
# Test average for all units in span
span_test_average = testSymbolData.getSpanAverageByCode(span_code)
self.assertEqual(span_expected_average, span_test_average, 'The computed average for a test span for a test SymbolData object was expected to be {0} but was {1}'.format(span_expected_average, span_test_average))
expected_delta_off_average = 0.0486891385768
test_delta_off_average = testSymbolData.getPercentageDeltaOffSpanAverage(span_code, off_average_value_to_test)
test_delta_off_average = round(test_delta_off_average, 13)
self.assertEqual(expected_delta_off_average, test_delta_off_average, 'The computed delta percentage off average for a test SymbolData object was expected to be {0} but was {1}'.format(expected_delta_off_average, test_delta_off_average))
# Test average for odd/even units in span
even_units_label = unit_label_prefix + 'even'
test_even_units_average = testSymbolData.getSpanAverageByCode(span_code, even_units_label)
test_even_units_average = round(test_even_units_average, 5)
self.assertEqual(test_even_units_average, span_even_expected_average)
odd_units_label = unit_label_prefix + 'odd'
test_odd_units_average = testSymbolData.getSpanAverageByCode(span_code, odd_units_label)
self.assertEqual(test_odd_units_average, span_odd_expected_average)
# Test off-average for odd/even units in span
expected_off_even_average_value = 83.0
expected_off_odd_average_value = -0.57736
test_delta_off_even_average = testSymbolData.getPercentageDeltaOffSpanAverage(span_code, off_average_value_to_test, even_units_label)
test_delta_off_even_average = round(test_delta_off_even_average, 1)
test_delta_off_odd_average = testSymbolData.getPercentageDeltaOffSpanAverage(span_code, off_average_value_to_test, odd_units_label)
test_delta_off_odd_average = round(test_delta_off_odd_average, 5)
self.assertEqual(expected_off_even_average_value, test_delta_off_even_average)
self.assertEqual(expected_off_odd_average_value, test_delta_off_odd_average)
